/*
简介：负责存取数据的类
创建时间：2002-10
最后修改时间：2004-2-1 ccb
说明：
在次文件种处理了4种方式的连接。
1， sql server .
2， oracle.
3， ole.
4, odbc.
*/
using System;
using System.Data;
using System.Diagnostics;
using System.Configuration;
using System.Data.SqlClient;
using System.Collections;
using System.ComponentModel;
using System.Collections.Specialized;
using Oracle.ManagedDataAccess.Client;
using System.Web;
using System.Data.Odbc;
using System.IO;
using MySql.Data;
using MySql;
using MySql.Data.MySqlClient;
using BP.Sys;
using Npgsql;
using Nuxsql;
using Dm;
//增加人大金仓支持
using Kdbndp;
using BP.Difference;
using Newtonsoft.Json;
using KdbndpTypes;
namespace BP.DA
{
///
/// 数据库访问。
/// 这个类负责处理了 实体信息
///
public class DBAccess
{
public static void UpdateTableColumnDefaultVal(string table, string colName, object defaultVal)
{
string sql = "";
//是否存在该列?
if (DBAccess.IsExitsTableCol(table, colName) == false)
return;
switch (BP.Difference.SystemConfig.AppCenterDBType)
{
case DBType.MySQL:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
if (defaultVal.GetType() == typeof(int) || defaultVal.GetType() == typeof(float) || defaultVal.GetType() == typeof(decimal))
sql = "ALTER TABLE " + table + " ALTER COLUMN " + colName + " SET DEFAULT " + defaultVal.ToString();
else
sql = "ALTER TABLE " + table + " ALTER COLUMN " + colName + " SET DEFAULT '" + defaultVal.ToString() + "'";
break;
case DBType.Oracle:
if (defaultVal.GetType() == typeof(int) || defaultVal.GetType() == typeof(float) || defaultVal.GetType() == typeof(decimal))
sql = "ALTER TABLE " + table + " MODIFY " + colName + " DEFAULT " + defaultVal.ToString();
else
sql ="ALTER TABLE "+table+ " MODIFY "+colName+ " DEFAULT '" + defaultVal.ToString() + "'";
break;
case DBType.MSSQL:
sql = "SELECT b.name FROM sysobjects b join syscolumns a on b.id = a.cdefault WHERE a.id = object_id('" + table + "') AND a.name = '" + colName + "'";
string yueShu = DBAccess.RunSQLReturnStringIsNull(sql, null);
if (yueShu != null)
{
sql = "ALTER TABLE " + table + " DROP constraint " + yueShu;
DBAccess.RunSQL(sql); //删除约束.
}
if (defaultVal.GetType() == typeof(int) || defaultVal.GetType() == typeof(float) || defaultVal.GetType() == typeof(decimal))
sql = "ALTER TABLE " + table + " ADD DEFAULT " + defaultVal.ToString() + " FOR " + colName;
else
sql = "ALTER TABLE " + table + " ADD DEFAULT '" + defaultVal.ToString() + "' FOR " + colName;
break;
default:
break;
}
if (DataType.IsNullOrEmpty(sql) == true)
throw new Exception("err@没有判断的数据库类型.");
//设置默认值.
BP.DA.DBAccess.RunSQL(sql);
}
///
/// 获得数据表字段描述的SQL
///
public static string SQLOfTableFieldDesc(string table)
{
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.MSSQL)
return "SELECT column_name as FName,data_type as FType,CHARACTER_MAXIMUM_LENGTH as FLen from information_schema.columns where table_name='" + table + "'";
throw new Exception("@没有涉及到的数据库类型");
}
///
/// 删除指定字段的约束
///
/// 表名
/// 列名
/// 返回删除约束的个数
public static int DropConstraintOfSQL(string table, string colName)
{
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.MSSQL)
{
//获得约束.
string sql = "select b.name from sysobjects b join syscolumns a on b.id = a.cdefault ";
sql += " where a.id = object_id('" + table + "') ";
sql += " and a.name ='" + colName + "' ";
//遍历并删除它们.
DataTable dt = DBAccess.RunSQLReturnTable(sql);
foreach (DataRow dr in dt.Rows)
{
string name = dr[0].ToString();
DBAccess.RunSQL("exec('alter table " + table + " drop constraint " + name + " ' )");
}
//返回执行的个数.
return dt.Rows.Count;
}
return 0;
}
///
/// 获得约束
///
///
///
public static string SQLOfTableFieldYueShu(string table)
{
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.MSSQL)
return "SELECT b.name, a.name FName from sysobjects b join syscolumns a on b.id = a.cdefault where a.id = object_id('" + table + "') ";
throw new Exception("@没有涉及到的数据库类型");
}
///
/// 是否大小写敏感
///
public static bool IsCaseSensitive
{
get
{
if (DBAccess.IsExitsObject("TEST") == true)
{
DBAccess.RunSQL("DROP TABLE TEST ");
}
if (DBAccess.IsExitsObject("test") == true)
{
DBAccess.RunSQL("DROP table test ");
}
string mysql = "CREATE TABLE TEST(OID int NOT NULL )";
DBAccess.RunSQL(mysql);
if (DBAccess.IsExitsObject("test") == false)
{
DBAccess.RunSQL("DROP TABLE TEST ");
return true;
}
if (DBAccess.IsExitsTableCol("test", "oid") == false)
{
DBAccess.RunSQL("DROP TABLE TEST ");
return true;
}
return false;
}
}
#region 文件存储数据库处理.
///
/// 保存文件到数据库
///
/// 数据流
/// 表名称
/// 表主键
/// 主键值
/// 保存到字段
public static void SaveBytesToDB(byte[] bytes, string tableName, string tablePK, object pkVal, string saveToFileField)
{
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.MSSQL)
{
SqlConnection cn = DBAccess.GetAppCenterDBConn as SqlConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
SqlCommand cm = new SqlCommand();
cm.Connection = cn;
cm.CommandType = CommandType.Text;
if (cn.State == 0) cn.Open();
cm.CommandText = "UPDATE " + tableName + " SET " + saveToFileField + "=@FlowJsonFile WHERE " + tablePK + " =@PKVal";
SqlParameter spFile = new SqlParameter("@FlowJsonFile", SqlDbType.Image);
spFile.Value = bytes;
cm.Parameters.Add(spFile);
SqlParameter spPK = new SqlParameter("@PKVal", SqlDbType.VarChar);
spPK.Value = pkVal;
cm.Parameters.Add(spPK);
// 执行它.
try
{
cm.ExecuteNonQuery();
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, saveToFileField) == false)
{
/*如果没有此列，就自动创建此列.*/
string sql = "ALTER TABLE " + tableName + " ADD " + saveToFileField + " Image ";
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.MSSQL)
sql = "ALTER TABLE " + tableName + " ADD " + saveToFileField + " Image ";
DBAccess.RunSQL(sql);
SaveBytesToDB(bytes, tableName, tablePK, pkVal, saveToFileField);
return;
}
throw new Exception("@缺少此字段[" + tableName + "," + saveToFileField + "],有可能系统自动修复." + ex.Message);
}
finally
{
cm.Dispose();
cn.Dispose();
}
}
//修复for：jlow oracle 异常： ORA-01745: 无效的主机/绑定变量名 edited by qin 16.7.1
//错误的引用oracle的关键字file
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.Oracle)
{
OracleConnection cn = DBAccess.GetAppCenterDBConn as OracleConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
OracleCommand cm = new OracleCommand();
cm.Connection = cn;
cm.CommandType = CommandType.Text;
if (cn.State == 0) cn.Open();
cm.CommandText = "UPDATE " + tableName + " SET " + saveToFileField + "=:FlowJsonFile WHERE " + tablePK + " =:PKVal";
OracleParameter spFile = new OracleParameter("FlowJsonFile", OracleDbType.Blob);
spFile.Value = bytes;
cm.Parameters.Add(spFile);
OracleParameter spPK = new OracleParameter("PKVal", OracleDbType.NVarchar2);
spPK.Value = pkVal;
cm.Parameters.Add(spPK);
// 执行它.
try
{
cm.ExecuteNonQuery();
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, saveToFileField) == false)
{
/*如果没有此列，就自动创建此列.*/
//修改数据类型 oracle 不存在image类型 edited by qin 16.7.1
string sql = "ALTER TABLE " + tableName + " ADD " + saveToFileField + " blob ";
DBAccess.RunSQL(sql);
SaveBytesToDB(bytes, tableName, tablePK, pkVal, saveToFileField);
return;
}
throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message + "， 请检查该表[" + tableName + "]字段[" + saveToFileField + "]是否是 blob 类型.");
}
finally
{
cm.Dispose();
cn.Dispose();
}
}
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.KingBaseR3 || BP.Difference.SystemConfig.AppCenterDBType == DBType.KingBaseR6)
{
KdbndpConnection conn = new KdbndpConnection();
if (conn.State != ConnectionState.Open)
{
conn.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
conn.Open();
}
KdbndpCommand cm = new KdbndpCommand();
cm.Connection = conn;
cm.CommandType = CommandType.Text;
if (conn.State == 0) conn.Open();
cm.CommandText = "UPDATE " + tableName + " SET " + saveToFileField + "=:FlowJsonFile WHERE " + tablePK + " =:PKVal";
KdbndpParameter spFile = new KdbndpParameter("FlowJsonFile", KdbndpDbType.Bytea);
spFile.Value = bytes;
cm.Parameters.Add(spFile);
KdbndpParameter spPK = new KdbndpParameter("PKVal", KdbndpDbType.Varchar);
spPK.Value = pkVal;
cm.Parameters.Add(spPK);
// 执行它.
try
{
cm.ExecuteNonQuery();
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, saveToFileField) == false)
{
/*如果没有此列，就自动创建此列.*/
//修改数据类型 oracle 不存在image类型 edited by qin 16.7.1
string sql = "ALTER TABLE " + tableName + " ADD " + saveToFileField + " blob ";
DBAccess.RunSQL(sql);
SaveBytesToDB(bytes, tableName, tablePK, pkVal, saveToFileField);
return;
}
throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message + "， 请检查该表[" + tableName + "]字段[" + saveToFileField + "]是否是 blob 类型.");
}
finally
{
cm.Dispose();
conn.Dispose();
}
}
//add by zhoupeng
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.UX || BP.Difference.SystemConfig.AppCenterDBType == DBType.UX)
{
Npgsql.NpgsqlConnection cn = DBAccess.GetAppCenterDBConn as Npgsql.NpgsqlConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
Npgsql.NpgsqlCommand cm = new Npgsql.NpgsqlCommand();
cm.Connection = cn;
cm.CommandType = CommandType.Text;
cm.CommandText = "UPDATE " + tableName + " SET " + saveToFileField + "=@FlowJsonFile WHERE " + tablePK + " =@PKVal";
Npgsql.NpgsqlParameter spFile = new Npgsql.NpgsqlParameter("FlowJsonFile", NpgsqlTypes.NpgsqlDbType.Bytea);
spFile.Value = bytes;
cm.Parameters.Add(spFile);
NpgsqlParameter spPK = null;
if (tableName.Contains("ND") == true || pkVal.GetType() == typeof(int) || pkVal.GetType() == typeof(Int64))
{
spPK = new NpgsqlParameter("PKVal", NpgsqlTypes.NpgsqlDbType.Integer);
spPK.Value = int.Parse(pkVal.ToString());
}
else
{
spPK = new NpgsqlParameter("PKVal", NpgsqlTypes.NpgsqlDbType.Varchar);
spPK.Value = pkVal;
}
//spPK.DbType= NpgsqlTypes.NpgsqlDbType.Integer.
cm.Parameters.Add(spPK);
try
{
cm.ExecuteNonQuery();
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, saveToFileField) == false)
{
/*如果没有此列，就自动创建此列.*/
string sql = "ALTER TABLE " + tableName + " ADD " + saveToFileField + " bytea NULL ";
DBAccess.RunSQL(sql);
SaveBytesToDB(bytes, tableName, tablePK, pkVal, saveToFileField);
return;
}
throw new Exception("@NpgsqlDbType缺少此字段[" + tableName + "," + saveToFileField + "],有可能系统自动修复." + ex.Message);
}
finally
{
cm.Dispose();
cn.Dispose();
}
}
//added by liuxc,2016-12-7，增加对mysql大数据longblob字段存储逻辑
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.MySQL)
{
MySqlConnection cn = DBAccess.GetAppCenterDBConn as MySqlConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
MySqlCommand cm = new MySqlCommand();
cm.Connection = cn;
cm.CommandType = CommandType.Text;
cm.CommandText = "UPDATE " + tableName + " SET " + saveToFileField + "=@FlowJsonFile WHERE " + tablePK + " =@PKVal";
MySqlParameter spFile = new MySqlParameter("FlowJsonFile", MySqlDbType.Blob);
spFile.Value = bytes;
cm.Parameters.Add(spFile);
MySqlParameter spPK = new MySqlParameter("PKVal", MySqlDbType.VarChar);
spPK.Value = pkVal;
cm.Parameters.Add(spPK);
try
{
cm.ExecuteNonQuery();
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, saveToFileField) == false)
{
/*如果没有此列，就自动创建此列.*/
string sql = "ALTER TABLE " + tableName + " ADD " + saveToFileField + " MediumBlob NULL ";
DBAccess.RunSQL(sql);
SaveBytesToDB(bytes, tableName, tablePK, pkVal, saveToFileField);
return;
}
throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message + "， 请检查该表[" + tableName + "]字段[" + saveToFileField + "]是否是 MediumBlob 类型.");
}
finally
{
cm.Dispose();
cn.Dispose();
}
}
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.PostgreSQL || BP.Difference.SystemConfig.AppCenterDBType == DBType.HGDB)
{
NpgsqlConnection cn = DBAccess.GetAppCenterDBConn as NpgsqlConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
NpgsqlCommand cm = new NpgsqlCommand();
cm.Connection = cn;
cm.CommandType = CommandType.Text;
cm.CommandText = "UPDATE " + tableName + " SET " + saveToFileField + "=@FlowJsonFile WHERE " + tablePK + " =@PKVal";
NpgsqlParameter spFile = new NpgsqlParameter("FlowJsonFile", NpgsqlTypes.NpgsqlDbType.Bytea);
spFile.Value = bytes;
cm.Parameters.Add(spFile);
NpgsqlParameter spPK = new NpgsqlParameter("PKVal", NpgsqlTypes.NpgsqlDbType.Varchar);
spPK.Value = pkVal;
cm.Parameters.Add(spPK);
try
{
cm.ExecuteNonQuery();
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, saveToFileField) == false)
{
/*如果没有此列，就自动创建此列.*/
string sql = "ALTER TABLE " + tableName + " ADD " + saveToFileField + " LONGBLOB NULL ";
DBAccess.RunSQL(sql);
SaveBytesToDB(bytes, tableName, tablePK, pkVal, saveToFileField);
return;
}
throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message + "， 请检查该表[" + tableName + "]字段[" + saveToFileField + "]是否是 MediumBlob 类型.");
}
finally
{
cm.Dispose();
cn.Dispose();
}
}
}
///
/// 保存文件到数据库
///
/// 文内容
/// 表名
/// 主键
/// 值
/// 保存到字段
/// 是否是保存byete
public static void SaveBigTextToDB(string docs, string tableName, string tablePK,
object pkVal, string saveToFileField)
{
//对于特殊的数据库进行判断.
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.Oracle
//|| BP.Difference.SystemConfig.AppCenterDBType == DBType.PostgreSQL
|| BP.Difference.SystemConfig.AppCenterDBType == DBType.DM
|| BP.Difference.SystemConfig.AppCenterDBType==DBType.KingBaseR3
|| BP.Difference.SystemConfig.AppCenterDBType == DBType.KingBaseR6)
{
byte[] inputBytes = System.Text.Encoding.UTF8.GetBytes(docs);
//执行保存.
SaveBytesToDB(inputBytes, tableName, tablePK, pkVal, saveToFileField);
return;
}
//其他数据库.
Paras ps = new Paras();
ps.SQL = "UPDATE " + tableName + " SET " + saveToFileField + "=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "MyDocs WHERE " + tablePK + "=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "PKVal";
ps.Add("MyDocs", docs);
ps.Add("PKVal", pkVal);
try
{
int i = DBAccess.RunSQL(ps);
if (i == 0)
{
//如果没有该笔数据，执行insert一条.
ps.SQL = "INSERT INTO " + tableName + " (" + tablePK + "," + saveToFileField + ") VALUES (" + BP.Difference.SystemConfig.AppCenterDBVarStr + "PKVal," + BP.Difference.SystemConfig.AppCenterDBVarStr + "MyDocs)";
DBAccess.RunSQL(ps);
}
}
catch (Exception ex)
{
/*如果没有此列，就自动创建此列.*/
if (DBAccess.IsExitsTableCol(tableName, saveToFileField) == false)
{
string sql = "ALTER TABLE " + tableName + " ADD " + saveToFileField + " text ";
DBAccess.RunSQL(sql);
//在执行一遍，存储数据.
DBAccess.RunSQL(ps);
return;
}
throw ex;
}
}
///
/// 保存文件到数据库
///
/// 完成的文件路径
/// 表名称
/// 表主键
/// 主键值
/// 保存到字段
public static void SaveFileToDB(string fullFileName, string tableName, string tablePK, string pkVal, string saveToFileField)
{
FileInfo fi = new FileInfo(fullFileName);
FileStream fs = fi.OpenRead();
byte[] bytes = new byte[fs.Length];
fs.Read(bytes, 0, Convert.ToInt32(fs.Length));
// bug 的提示者 http://bbs.ccbpm.cn/showtopic-3958.aspx
fs.Close();
fs.Dispose();
//执行保存.
SaveBytesToDB(bytes, tableName, tablePK, pkVal, saveToFileField);
}
///
/// 获得从数据库的字段获取数据，存储到一个文件里.
///
/// 指定的存储文件全路径
///
///
/// 主键值
/// 文件保存路径
public static byte[] GetFileFromDB(string fileFullName, string tableName, string tablePK, string pkVal, string fileSaveField)
{
byte[] byteFile = GetByteFromDB(tableName, tablePK, pkVal, fileSaveField);
FileStream fs;
//如果文件不为空,就把流数据保存一个文件.
if (fileFullName != null)
{
FileInfo fi = new System.IO.FileInfo(fileFullName);
fs = fi.OpenWrite();
if (byteFile != null)
fs.Write(byteFile, 0, byteFile.Length);
fs.Close();
fs.Dispose();
}
if (byteFile == null)
return null;
return byteFile;
}
///
/// 从数据库里获得文本
///
/// 表名
/// 主键
/// 主键值
/// 保存字段
/// 保存字段类型是否为Blob
///
public static string GetBigTextFromDB(string tableName, string tablePK, string pkVal,
string fileSaveField)
{
if (DataType.IsNullOrEmpty(pkVal) == true)
return "";
//对于特殊的数据库进行判断.
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.Oracle
//|| BP.Difference.SystemConfig.AppCenterDBType == DBType.PostgreSQL
|| BP.Difference.SystemConfig.AppCenterDBType == DBType.DM
|| BP.Difference.SystemConfig.AppCenterDBType == DBType.KingBaseR3
|| BP.Difference.SystemConfig.AppCenterDBType == DBType.KingBaseR6)
{
byte[] byteFile = GetByteFromDB(tableName, tablePK, pkVal, fileSaveField);
if (byteFile == null)
return "";
string strs = System.Text.Encoding.UTF8.GetString(byteFile);
int idx = strs.IndexOf('$');
if (idx != 0)
strs = strs.Substring(idx + 1);
return strs;
}
//其他的数据库类型直接从 text字段去.
try
{
string getSql = "SELECT " + fileSaveField + " FROM " + tableName + " WHERE " + tablePK + " = '" + pkVal + "'";
return DBAccess.RunSQLReturnStringIsNull(getSql, "");
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, fileSaveField) == false)
{
string sql = "ALTER TABLE " + tableName + " ADD " + fileSaveField + " text ";
DBAccess.RunSQL(sql);
}
string getSql = "SELECT " + fileSaveField + " FROM " + tableName + " WHERE " + tablePK + " = '" + pkVal + "'";
return DBAccess.RunSQLReturnString(getSql);
}
}
///
/// 从数据库里提取文件
///
/// 表名
/// 表主键
/// 主键值
/// 字段
public static byte[] GetByteFromDB(string tableName, string tablePK, string pkVal, string fileSaveField,bool isFirst = true)
{
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.MSSQL)
{
SqlConnection cn = DBAccess.GetAppCenterDBConn as SqlConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
string strSQL = "SELECT [" + fileSaveField + "] FROM " + tableName + " WHERE " + tablePK + "='" + pkVal + "'";
SqlDataReader dr = null;
SqlCommand cm = new SqlCommand();
cm.Connection = cn;
cm.CommandText = strSQL;
cm.CommandType = CommandType.Text;
// 执行它.
try
{
dr = cm.ExecuteReader();
byte[] byteFile = null;
if (dr.Read())
{
if (dr[0] == null || DataType.IsNullOrEmpty(dr[0].ToString()))
return null;
byteFile = (byte[])dr[0];
}
return byteFile;
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, fileSaveField) == false)
{
/*如果没有此列，就自动创建此列. */
string sql = "ALTER TABLE " + tableName + " ADD " + fileSaveField + " Image ";
DBAccess.RunSQL(sql);
return null;
// return GetByteFromDB(tableName, tablePK, pkVal, fileSaveField);
}
throw ex;
//throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message);
}
finally
{
if (dr != null)
dr.Close();
cm.Dispose();
cn.Dispose();
}
}
//增加对oracle数据库的逻辑 qin
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.Oracle)
{
OracleConnection cn = DBAccess.GetAppCenterDBConn as OracleConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
string strSQL = "SELECT " + fileSaveField + " FROM " + tableName + " WHERE " + tablePK + "='" + pkVal + "'";
OracleDataReader dr = null;
OracleCommand cm = new OracleCommand();
cm.Connection = cn;
cm.CommandText = strSQL;
cm.CommandType = CommandType.Text;
// 执行它.
try
{
dr = cm.ExecuteReader();
byte[] byteFile = null;
if (dr.Read())
{
if (dr[0] == null || DataType.IsNullOrEmpty(dr[0].ToString()))
return null;
byteFile = (byte[])dr[0];
}
return byteFile;
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, fileSaveField) == false)
{
/*如果没有此列，就自动创建此列.*/
string sql = "ALTER TABLE " + tableName + " ADD " + fileSaveField + " blob ";
DBAccess.RunSQL(sql);
return null;
}
else
{
//改变类型
DBAccess.RunSQL("ALTER TABLE "+tableName+" RENAME COLUMN "+ fileSaveField+" TO "+ fileSaveField+"_bak");
//添加 remark 字段，类型为 clob
DBAccess.RunSQL("ALTER TABLE " + tableName + " ADD " + fileSaveField + " blob ");
//把XX_bar 字段赋值给XX字段
DBAccess.RunSQL("UPDATE " + tableName + " SET " + fileSaveField + " = " + fileSaveField + "_bak");
DBAccess.RunSQL("ALTER TABLE " + tableName + " DROP COLUMN "+ fileSaveField+"_bak");
if(isFirst == true)
return GetByteFromDB(tableName, tablePK, pkVal, fileSaveField,false);
}
throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message + "， 请检查该表[" + tableName + "]字段[" + fileSaveField + "]是否是 blob 类型.");
}
finally
{
if(dr!= null) { dr.Close(); };
cm.Dispose();
cn.Dispose();
}
}
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.KingBaseR3 || BP.Difference.SystemConfig.AppCenterDBType == DBType.KingBaseR6)
{
KdbndpConnection conn = new KdbndpConnection();
if (conn.State != ConnectionState.Open)
{
conn.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
conn.Open();
}
string strSQL = "SELECT " + fileSaveField + " FROM " + tableName + " WHERE " + tablePK + "='" + pkVal + "'";
KdbndpDataReader dr = null;
KdbndpCommand cm = new KdbndpCommand();
cm.Connection = conn;
cm.CommandText = strSQL;
cm.CommandType = CommandType.Text;
// 执行它.
try
{
dr = cm.ExecuteReader();
byte[] byteFile = null;
if (dr.Read())
{
if (dr[0] == null || DataType.IsNullOrEmpty(dr[0].ToString()))
return null;
byteFile = (byte[])dr[0];
}
return byteFile;
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, fileSaveField) == false)
{
/*如果没有此列，就自动创建此列.*/
string sql = "ALTER TABLE " + tableName + " ADD " + fileSaveField + " blob ";
DBAccess.RunSQL(sql);
}
throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message + "， 请检查该表[" + tableName + "]字段[" + fileSaveField + "]是否是 blob 类型.");
}
finally
{
if (dr != null) { dr.Close(); };
cm.Dispose();
conn.Dispose();
}
}
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.UX)
{
NuxsqlConnection cn = DBAccess.GetAppCenterDBConn as NuxsqlConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
string strSQL = "SELECT " + fileSaveField + " FROM " + tableName + " WHERE " + tablePK + "='" + pkVal + "'";
NuxsqlDataReader dr = null;
NuxsqlCommand cm = new NuxsqlCommand();
cm.Connection = cn;
cm.CommandText = strSQL;
cm.CommandType = CommandType.Text;
// 执行它.
try
{
dr = cm.ExecuteReader();
byte[] byteFile = null;
if (dr.Read())
{
if (dr[0] == null || DataType.IsNullOrEmpty(dr[0].ToString()))
return null;
byteFile = dr[0] as byte[];
//System.Text.Encoding.Default.GetBytes(dr[0].ToString());
}
return byteFile;
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, fileSaveField) == false)
{
/*如果没有此列，就自动创建此列.*/
string sql = "ALTER TABLE " + tableName + " ADD " + fileSaveField + " LONGBLOB NULL ";
DBAccess.RunSQL(sql);
}
throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message + "， 请检查该表[" + tableName + "]字段[" + fileSaveField + "]是否是 LONGBLOB 类型.");
}
finally
{
if (dr != null) { dr.Close(); };
cm.Dispose();
cn.Dispose();
}
}
//added by liuxc,2016-12-7,增加对mysql数据库的逻辑
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.MySQL)
{
MySqlConnection cn = DBAccess.GetAppCenterDBConn as MySqlConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
string strSQL = "SELECT " + fileSaveField + " FROM " + tableName + " WHERE " + tablePK + "='" + pkVal + "'";
MySqlDataReader dr = null;
MySqlCommand cm = new MySqlCommand();
cm.Connection = cn;
cm.CommandText = strSQL;
cm.CommandType = CommandType.Text;
// 执行它.
try
{
dr = cm.ExecuteReader();
byte[] byteFile = null;
if (dr.Read())
{
if (dr[0] == null || DataType.IsNullOrEmpty(dr[0].ToString()))
return null;
byteFile = dr[0] as byte[];
//System.Text.Encoding.Default.GetBytes(dr[0].ToString());
}
return byteFile;
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, fileSaveField) == false)
{
/*如果没有此列，就自动创建此列.*/
string sql = "ALTER TABLE " + tableName + " ADD " + fileSaveField + " LONGBLOB NULL ";
DBAccess.RunSQL(sql);
}
throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message + "， 请检查该表[" + tableName + "]字段[" + fileSaveField + "]是否是 LONGBLOB 类型.");
}
finally
{
if (dr != null) { dr.Close(); };
cm.Dispose();
cn.Dispose();
}
}
if (BP.Difference.SystemConfig.AppCenterDBType == DBType.PostgreSQL || BP.Difference.SystemConfig.AppCenterDBType == DBType.HGDB)
{
NpgsqlConnection cn = DBAccess.GetAppCenterDBConn as NpgsqlConnection;
if (cn.State != ConnectionState.Open)
cn.Open();
string strSQL = "SELECT " + fileSaveField + " FROM " + tableName + " WHERE " + tablePK + "='" + pkVal + "'";
NpgsqlDataReader dr = null;
NpgsqlCommand cm = new NpgsqlCommand();
cm.Connection = cn;
cm.CommandText = strSQL;
cm.CommandType = CommandType.Text;
// 执行它.
try
{
dr = cm.ExecuteReader();
byte[] byteFile = null;
if (dr.Read())
{
if (dr[0] == null || DataType.IsNullOrEmpty(dr[0].ToString()))
return null;
byteFile = dr[0] as byte[];
//System.Text.Encoding.Default.GetBytes(dr[0].ToString());
}
return byteFile;
}
catch (Exception ex)
{
if (DBAccess.IsExitsTableCol(tableName, fileSaveField) == false)
{
/*如果没有此列，就自动创建此列.*/
string sql = "ALTER TABLE " + tableName + " ADD " + fileSaveField + " LONGBLOB NULL ";
DBAccess.RunSQL(sql);
}
throw new Exception("@缺少此字段,有可能系统自动修复." + ex.Message + "， 请检查该表[" + tableName + "]字段[" + fileSaveField + "]是否是 LONGBLOB 类型.");
}
finally
{
if (dr != null) { dr.Close(); };
cm.Dispose();
cn.Dispose();
}
}
//最后仍然没有找到.
throw new Exception("@获取文件，从数据库里面，没有判断的数据库类型.");
}
#endregion 文件存储数据库处理.
#region 事务处理
///
/// 执行增加一个事务
///
public static void DoTransactionBegin()
{
return;
//if (BP.Difference.SystemConfig.AppCenterDBType != DBType.MSSQL)
// return;
//if (BP.Web.WebUser.No == null)
// return;
//SqlConnection conn = new SqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
//Cache.SetConn(BP.Web.WebUser.No, conn);
//DBAccess.RunSQL("BEGIN TRANSACTION");
}
///
/// 回滚事务
///
public static void DoTransactionRollback()
{
return;
//if (BP.Difference.SystemConfig.AppCenterDBType != DBType.MSSQL)
// return;
//if (BP.Web.WebUser.No == null)
// return;
//DBAccess.RunSQL("Rollback TRANSACTION");
//SqlConnection conn = Cache.GetConn(BP.Web.WebUser.No) as SqlConnection;
//conn.Close();
//conn.Dispose();
}
///
/// 提交事务
///
public static void DoTransactionCommit()
{
/*
return;
if (BP.Difference.SystemConfig.AppCenterDBType != DBType.MSSQL)
return;
if (BP.Web.WebUser.No == null)
return;
DBAccess.RunSQL("Commit TRANSACTION");
*/
}
#endregion 事务处理
public static Paras DealParasBySQL(string sql, Paras ps)
{
Paras myps = new Paras();
foreach (Para p in ps)
{
if (sql.Contains(":" + p.ParaName) == false)
continue;
myps.Add(p);
}
return myps;
}
///
/// 运行一个sql返回该table的第1列，组成一个查询的where in 字符串.
///
///
/// i
public static string GenerWhereInPKsString(string sql)
{
DataTable dt = DBAccess.RunSQLReturnTable(sql);
return GenerWhereInPKsString(dt);
}
///
/// 通过table的第1列，组成一个查询的where in 字符串.
///
///
///
public static string GenerWhereInPKsString(DataTable dt)
{
string pks = "";
foreach (DataRow dr in dt.Rows)
{
pks += "'" + dr[0] + "',";
}
if (pks == "")
return "";
return pks.Substring(0, pks.Length - 1);
}
///
/// 检查是否连接成功.
///
///
public static bool TestIsConnection()
{
try
{
switch (BP.Difference.SystemConfig.AppCenterDBType)
{
case DBType.MSSQL:
case DBType.PostgreSQL:
case DBType.HGDB:
case DBType.UX:
DBAccess.RunSQLReturnString("SELECT 1+2 ");
break;
case DBType.Oracle:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
case DBType.MySQL:
DBAccess.RunSQLReturnString("SELECT 1+2 FROM DUAL ");
break;
//case DBType.Informix:
// DBAccess.RunSQLReturnString("SELECT 1+2 FROM DUAL ");
// break;
default:
break;
}
return true;
}
catch (Exception)
{
return false;
}
//return true;
}
//构造函数
static DBAccess()
{
CurrentSys_Serial = new Hashtable();
KeyLockState = new Hashtable();
}
#region 运行中定义的变量
public static readonly Hashtable CurrentSys_Serial;
private static int readCount = -1;
private static readonly Hashtable KeyLockState;
#endregion
#region 产生序列号码方法
///
/// 生成 GenerOIDByGUID.
///
///
public static int GenerOIDByGUID()
{
int i = BP.Tools.CRC32Helper.GetCRC32(Guid.NewGuid().ToString());
if (i <= 0)
i = -i;
return i;
}
///
/// 生成 GenerGUID
///
///
public static string GenerGUID(int length = 0, string ptable = null, string colName = null)
{
if (length == 0)
return Guid.NewGuid().ToString();
if (ptable == null)
return Guid.NewGuid().ToString().Substring(0, length);
while (true)
{
string str = Guid.NewGuid().ToString().Substring(0, length);
string sql = "SELECT COUNT(" + colName + ") as Num FROM " + ptable + " WHERE " + colName + " ='" + str + "'";
if (DBAccess.RunSQLReturnValInt(sql) == 0)
return str;
}
return null;
}
///
/// 锁定OID
///
private static bool lock_OID = false;
///
/// 产生一个OID
///
///
public static int GenerOID()
{
while (lock_OID == true)
{
}
lock_OID = true;
if (DBAccess.RunSQL("UPDATE Sys_Serial SET IntVal=IntVal+1 WHERE CfgKey='OID'") == 0)
DBAccess.RunSQL("INSERT INTO Sys_Serial (CfgKey,IntVal) VALUES ('OID',100)");
int oid = DBAccess.RunSQLReturnValInt("SELECT IntVal FROM Sys_Serial WHERE CfgKey='OID'");
lock_OID = false;
return oid;
}
///
/// 锁
///
private static bool lock_OID_CfgKey = false;
#region 第二版本的生成 OID。
///
/// 锁
///
private static bool lock_HT_CfgKey = false;
private static Hashtable lock_HT = new Hashtable();
///
/// 生成唯一的序列号
///
/// 配置信息
/// 唯一的序列号
public static Int64 GenerOID(string cfgKey)
{
//while (lock_HT_CfgKey == true)
//{
//}
lock_HT_CfgKey = true;
if (lock_HT.ContainsKey(cfgKey) == false)
{
}
else
{
}
Paras ps = new Paras();
ps.Add("CfgKey", cfgKey);
//string sql = "UPDATE Sys_Serial SET IntVal=IntVal+1 WHERE CfgKey=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey";
//int num = DBAccess.RunSQL(sql, ps);
string sql = "SELECT IntVal FROM Sys_Serial WHERE CfgKey=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey";
int num = DBAccess.RunSQLReturnValInt(sql, ps);
if (num == 0)
{
sql = "INSERT INTO Sys_Serial (CFGKEY,INTVAL) VALUES ('" + cfgKey + "',100)";
DBAccess.RunSQL(sql);
lock_HT_CfgKey = false;
if (lock_HT.ContainsKey(cfgKey) == false)
lock_HT.Add(cfgKey, 200);
return 100;
}
else
{
sql = "UPDATE Sys_Serial SET IntVal=IntVal+1 WHERE CfgKey=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey";
DBAccess.RunSQL(sql, ps);
}
sql = "SELECT IntVal FROM Sys_Serial WHERE CfgKey=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey";
num = DBAccess.RunSQLReturnValInt(sql, ps);
lock_HT_CfgKey = false;
return num;
}
#endregion 第二版本的生成 OID。
///
/// 获取一个从OID, 更新到OID.
/// 用例: 我已经明确知道要用到260个OID,
/// 但是为了避免多次取出造成效率浪费，就可以一次性取出 260个OID.
///
///
/// 要获取的OID数量.
/// 从OID
public static Int64 GenerOID(string cfgKey, int getOIDNum)
{
Paras ps = new Paras();
ps.Add("CfgKey", cfgKey);
string sql = "UPDATE Sys_Serial SET IntVal=IntVal+" + getOIDNum + " WHERE CfgKey=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey";
int num = DBAccess.RunSQL(sql, ps);
if (num == 0)
{
getOIDNum = getOIDNum + 100;
sql = "INSERT INTO Sys_Serial (CFGKEY,INTVAL) VALUES (" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey," + getOIDNum + ")";
DBAccess.RunSQL(sql, ps);
return 100;
}
sql = "SELECT IntVal FROM Sys_Serial WHERE CfgKey=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey";
return DBAccess.RunSQLReturnValInt(sql, ps) - getOIDNum;
}
public static Int32 GenerOIDByKey32(string intKey)
{
Paras ps = new Paras();
ps.Add("CfgKey", intKey);
string sql = "";
sql = "UPDATE Sys_Serial SET IntVal=IntVal+1 WHERE CfgKey=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey";
int num = DBAccess.RunSQL(sql, ps);
if (num == 0)
{
sql = "INSERT INTO Sys_Serial (CFGKEY,INTVAL) VALUES (" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey,'100')";
DBAccess.RunSQL(sql, ps);
return int.Parse(intKey + "100");
}
sql = "SELECT IntVal FROM Sys_Serial WHERE CfgKey=" + BP.Difference.SystemConfig.AppCenterDBVarStr + "CfgKey";
int val = DBAccess.RunSQLReturnValInt(sql, ps);
return int.Parse(intKey + val.ToString());
}
#endregion
#region 取得连接对象 ，CS、BS共用属性【关键属性】
///
/// AppCenterDBType
///
public static DBType AppCenterDBType
{
get
{
return BP.Difference.SystemConfig.AppCenterDBType;
}
}
public static string _connectionUserID = null;
///
/// 连接用户的ID
///
public static string ConnectionUserID
{
get
{
if (_connectionUserID == null)
{
string[] strs = BP.Difference.SystemConfig.AppCenterDSN.Split(';');
foreach (string str in strs)
{
if (str.ToLower().Contains("user ") == true)
{
_connectionUserID = str.Split('=')[1];
break;
}
}
}
return _connectionUserID;
}
}
public static IDbConnection GetAppCenterDBConn
{
get
{
string connstr = BP.Difference.SystemConfig.AppCenterDSN;
switch (AppCenterDBType)
{
case DBType.MSSQL:
return new SqlConnection(connstr);
case DBType.KingBaseR3:
case DBType.KingBaseR6:
return new KdbndpConnection(connstr);
case DBType.Oracle:
case DBType.DM:
return new OracleConnection(connstr);
case DBType.MySQL:
return new MySqlConnection(connstr);
case DBType.PostgreSQL:
case DBType.HGDB:
return new Npgsql.NpgsqlConnection(connstr);
case DBType.UX:
return new Nuxsql.NuxsqlConnection(connstr);
case DBType.Access:
default:
throw new Exception("err@GetAppCenterDBConn发现未知的数据库连接类型！");
}
}
}
#endregion 取得连接对象 ，CS、BS共用属性
///
/// 同一个Connetion执行多条sql返回DataSet
/// edited by qin 16.6.30 oracle数据库执行多条sql语句异常的修复
///
///
/// 1
public static DataSet RunSQLReturnDataSet(string sqls)
{
DataSet ds = new DataSet();
string[] sqlArray = sqls.Split(';');
DataTable dt = null;
for (int i = 0; i < sqlArray.Length; i++)
{
if (DataType.IsNullOrEmpty(sqlArray[i]) == true)
continue;
dt = DBAccess.RunSQLReturnTable(sqlArray[i]);
dt.TableName = "dt_" + i.ToString();
ds.Tables.Add(dt);
}
return ds;
}
#region 运行 SQL
#region 在指定的Connection上执行 SQL 语句，返回受影响的行数
#region OleDbConnection
public static int RunSQLDropTable(string table)
{
if (IsExitsObject(new DBUrl(DBUrlType.AppCenterDSN), table))
{
switch (AppCenterDBType)
{
case DBType.Oracle:
case DBType.KingBaseR6:
case DBType.KingBaseR3:
case DBType.DM:
case DBType.MSSQL:
case DBType.Informix:
case DBType.Access:
return RunSQL("DROP TABLE " + table);
default:
throw new Exception(" Exception ");
}
}
return 0;
/* return RunSQL("TRUNCATE TABLE " + table);*/
}
#endregion
#region SqlConnection
///
/// 运行SQL
///
// private static bool lock_SQL_RunSQL = false;
///
/// 运行SQL, 返回影响的行数.
///
/// msSQL
/// SqlConnection
/// 返回运行结果。
public static int RunSQL(string sql, SqlConnection conn, string dsn)
{
return RunSQL(sql, conn, CommandType.Text, dsn);
}
///
/// 运行SQL , 返回影响的行数.
///
/// msSQL
/// SqlConnection
/// CommandType
/// params
/// 返回运行结果
public static int RunSQL(string sql, SqlConnection conn, CommandType sqlType, string dsn)
{
SqlCommand cmd = new SqlCommand();
try
{
if (conn == null)
conn = new SqlConnection(dsn);
if (conn.State != System.Data.ConnectionState.Open)
{
conn.ConnectionString = dsn;
conn.Open();
}
cmd = new SqlCommand(sql, conn);
cmd.CommandType = sqlType;
return cmd.ExecuteNonQuery();
}
catch (System.Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw new Exception("RunSQL2 step=" + ex.Message + " 设置连接时间=" + conn.ConnectionTimeout);
}
finally
{
if (cmd != null)
cmd.Dispose();
if (conn != null)
conn.Dispose();
}
}
#endregion
#region OracleConnection
public static int RunSQL(string sql, OracleConnection conn, CommandType sqlType, string dsn)
{
OracleCommand cmd = new OracleCommand();
try
{
if (conn == null)
conn = new OracleConnection(dsn);
if (conn.State != System.Data.ConnectionState.Open)
{
conn.ConnectionString = dsn;
conn.Open();
}
cmd = new OracleCommand(sql, conn);
cmd.CommandType = sqlType;
return cmd.ExecuteNonQuery();
}
catch (System.Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw new Exception("RunSQL2" + ex.Message);
}
finally
{
if (cmd != null)
cmd.Dispose();
if (conn != null)
conn.Dispose();
}
}
#endregion
#endregion
#region 通过主应用程序在其他库上运行sql
public static void DropTableColumn(string table, string columnName)
{
try
{
DBAccess.DropConstraintOfSQL(table, columnName);
string sql = "ALTER TABLE " + table + " DROP COLUMN " + columnName;
DBAccess.RunSQL(sql);
}
catch (Exception ex)
{
}
}
///
/// 删除表的主键
///
/// 表名称
public static void DropTablePK(string table)
{
string pkName = DBAccess.GetTablePKName(table);
if (pkName == null)
return;
string sql = "";
switch (BP.Difference.SystemConfig.AppCenterDBType)
{
case DBType.Oracle:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
case DBType.DM:
case DBType.MSSQL:
sql = "ALTER TABLE " + table + " DROP CONSTRAINT " + pkName;
break;
case DBType.PostgreSQL:
case DBType.HGDB:
case DBType.UX:
sql = "ALTER TABLE " + table.ToLower() + " DROP CONSTRAINT " + pkName.ToLower();
break;
case DBType.MySQL:
sql = "ALTER TABLE " + table + " DROP primary key";
break;
default:
throw new Exception("err@DropTablePK不支持的数据库类型." + BP.Difference.SystemConfig.AppCenterDBType);
//break;
}
DBAccess.RunSQL(sql);
}
public static void RenameTableField(string table, string oldfield, string newfield)
{
if (oldfield.Equals(newfield) == true)
return;
if (DBAccess.IsExitsTableCol(table, oldfield) == false)
return;
if (DBAccess.IsExitsTableCol(table, newfield) == true)
return;
string sql = "";
DataTable dt = null;
switch (SystemConfig.AppCenterDBType)
{
case DBType.Oracle:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
case DBType.PostgreSQL:
case DBType.HGDB:
sql = "alter table " + table + " rename column " + oldfield + " to " + newfield;
break;
case DBType.MSSQL:
sql = "exec sp_rename '" + table + ".[" + oldfield + "]','" + newfield + "','column'";
break;
case DBType.MySQL:
case DBType.DM:
sql = "select COLUMN_TYPE, COLUMN_DEFAULT FROM information_schema.columns WHERE TABLE_SCHEMA='" + SystemConfig.AppCenterDBDatabase + "' AND table_name='" + table + "' AND column_Name='" + oldfield + "'";
dt = DBAccess.RunSQLReturnTable(sql);
sql = "ALTER TABLE " + table + " CHANGE " + oldfield + " " + newfield + " " + dt.Rows[0][0] ;
break;
default:
throw new Exception("err@DropTablePK不支持的数据库类型." + SystemConfig.AppCenterDBType);
}
DBAccess.RunSQL(sql);
}
#region pk
///
/// 建立主键
///
/// 物理表
/// 主键
public static void CreatePK(string tab, string pk, DBType db)
{
if (tab == null || tab.Equals(""))
return;
if (DBAccess.IsExitsTabPK(tab) == true)
return;
string sql;
switch (db)
{
case DBType.Informix:
sql = "ALTER TABLE " + tab.ToUpper() + " ADD CONSTRAINT PRIMARY KEY(" + pk + ") CONSTRAINT " + tab + "pk ";
break;
case DBType.MySQL:
// ALTER TABLE Port_Emp ADD CONSTRAINT Port_Emppk PRIMARY KEY (NO)
sql = "ALTER TABLE " + tab + " ADD CONSTRAINT " + tab + "px PRIMARY KEY(" + pk + ")";
//sql = "ALTER TABLE " + tab + " ADD CONSTRAINT PRIMARY KEY(" + pk + ") CONSTRAINT " + tab + "pk ";
break;
default:
sql = "ALTER TABLE " + tab.ToUpper() + " ADD CONSTRAINT " + tab + "pk PRIMARY KEY(" + pk.ToUpper() + ")";
break;
}
//这个地方不应该出现异常, 需要处理一下在向数据库计划流程中出现.
try
{
DBAccess.RunSQL(sql);
}
catch (Exception ex)
{
Log.DebugWriteError(ex);
}
}
public static void CreatePK(string tab, string pk1, string pk2, DBType db)
{
if (tab == null || tab.Equals(""))
return;
if (DBAccess.IsExitsTabPK(tab) == true)
return;
string sql;
switch (db)
{
case DBType.Informix:
sql = "ALTER TABLE " + tab.ToUpper() + " ADD CONSTRAINT PRIMARY KEY(" + pk1.ToUpper() + "," + pk2.ToUpper() + ") CONSTRAINT " + tab + "pk ";
break;
case DBType.MySQL:
sql = "ALTER TABLE " + tab + " ADD CONSTRAINT " + tab + "pk PRIMARY KEY(" + pk1 + "," + pk2 + ")";
break;
default:
sql = "ALTER TABLE " + tab.ToUpper() + " ADD CONSTRAINT " + tab + "pk PRIMARY KEY(" + pk1.ToUpper() + "," + pk2.ToUpper() + ")";
break;
}
DBAccess.RunSQL(sql);
}
public static void CreatePK(string tab, string pk1, string pk2, string pk3, DBType db)
{
if (tab == null || tab.Equals(""))
return;
if (DBAccess.IsExitsTabPK(tab) == true)
return;
string sql;
switch (db)
{
case DBType.Informix:
sql = "ALTER TABLE " + tab.ToUpper() + " ADD CONSTRAINT PRIMARY KEY(" + pk1.ToUpper() + "," + pk2.ToUpper() + "," + pk3.ToUpper() + ") CONSTRAINT " + tab + "pk ";
break;
case DBType.MySQL:
sql = "ALTER TABLE " + tab + " ADD CONSTRAINT " + tab + "pk PRIMARY KEY(" + pk1 + "," + pk2 + "," + pk3 + ")";
break;
default:
sql = "ALTER TABLE " + tab.ToUpper() + " ADD CONSTRAINT " + tab + "pk PRIMARY KEY(" + pk1.ToUpper() + "," + pk2.ToUpper() + "," + pk3.ToUpper() + ")";
break;
}
DBAccess.RunSQL(sql);
}
#endregion
#region index
public static void CreatIndex(string table, string fields)
{
string idxName = table + "_" + fields;
string sql = "";
if (DBAccess.IsExitsTableIndex(table, idxName) == true)
return;
sql = "CREATE INDEX " + idxName + " ON " + table + " (" + fields + ")";
DBAccess.RunSQL(sql);
}
public static void CreatIndex(string table, string pk1, string pk2)
{
try
{
DBAccess.RunSQL("CREATE INDEX " + table + "ID ON " + table + " (" + pk1 + "," + pk2 + ")");
}
catch
{
}
}
public static void CreatIndex(string table, string pk1, string pk2, string pk3)
{
try
{
DBAccess.RunSQL("CREATE INDEX " + table + "ID ON " + table + " (" + pk1 + "," + pk2 + "," + pk3 + ")");
}
catch (Exception ex)
{
}
}
public static void CreatIndex(string table, string pk1, string pk2, string pk3, string pk4)
{
try
{
DBAccess.RunSQL("CREATE INDEX " + table + "ID ON " + table + " (" + pk1 + "," + pk2 + "," + pk3 + "," + pk4 + ")");
}
catch (Exception ex)
{
}
}
#endregion
#endregion
#region 在当前的Connection执行 SQL 语句，返回受影响的行数
///
/// 是否去掉 --
///
/// 文件路径
/// 是否排除双减号
public static void RunSQLScript(string sqlOfScriptFilePath, bool isCutDoubleJianHao = true)
{
string str = DataType.ReadTextFile(sqlOfScriptFilePath);
if (SystemConfig.AppCenterDBType == DBType.KingBaseR3 || SystemConfig.AppCenterDBType == DBType.KingBaseR6)
str = str.Replace("Sys_Enum", "Sys_Enums");
string[] strs = str.Split(';');
foreach (string s in strs)
{
if (DataType.IsNullOrEmpty(s) || DataType.IsNullOrEmpty(s))
continue;
if (isCutDoubleJianHao == true && s.Contains("--"))
continue;
if (s.Contains("/*"))
continue;
DBAccess.RunSQL(s);
}
}
///
/// 执行具有Go的sql 文本。
///
///
public static void RunSQLScriptGo(string sqlOfScriptFilePath)
{
string str = DataType.ReadTextFile(sqlOfScriptFilePath);
string[] strs = str.Split(new String[] { "--GO--" }, StringSplitOptions.RemoveEmptyEntries);
foreach (string s in strs)
{
if (DataType.IsNullOrEmpty(s) || DataType.IsNullOrEmpty(s))
continue;
if (s.Contains("/**"))
continue;
string mysql = s.Replace("--GO--", "");
if (DataType.IsNullOrEmpty(mysql.Trim()))
continue;
if (s.Contains("--"))
continue;
DBAccess.RunSQL(mysql);
}
}
///
/// 运行SQLs
///
///
public static void RunSQLs(string sql)
{
if (DataType.IsNullOrEmpty(sql))
return;
//sql = DealSQL(sql);//去掉注释.
sql = sql.Replace("@GO", "~");
sql = sql.Replace("@", "~");
if (sql.Contains("';'") == false)
sql = sql.Replace(";", "~");
sql = sql.Replace("UPDATE", "~UPDATE");
sql = sql.Replace("DELETE", "~DELETE");
sql = sql.Replace("INSERT", "~INSERT");
string[] strs = sql.Split('~');
foreach (string str in strs)
{
if (DataType.IsNullOrEmpty(str))
continue;
if (str.Contains("--") || str.Contains("/*"))
continue;
RunSQL(str);
}
}
///
/// 运行带有参数的sql
///
///
///
public static int RunSQL(Paras ps)
{
return RunSQL(ps.SQL, ps);
}
///
/// 运行sql
///
///
///
public static int RunSQL(string sql)
{
if (sql == null || sql.Trim().Equals(""))
return 1;
Paras ps = new Paras();
ps.SQL = sql;
return RunSQL(ps);
}
public static int RunSQL(string sql, string paraKey, object val)
{
Paras ens = new Paras();
ens.Add(paraKey, val);
return RunSQL(sql, ens);
}
public static int RunSQL(string sql, string paraKey1, object val1, string paraKey2, object val2)
{
Paras ens = new Paras();
ens.Add(paraKey1, val1);
ens.Add(paraKey2, val2);
return RunSQL(sql, ens);
}
public static int RunSQL(string sql, string paraKey1, object val1, string paraKey2, object val2, string k3, object v3)
{
Paras ens = new Paras();
ens.Add(paraKey1, val1);
ens.Add(paraKey2, val2);
ens.Add(k3, v3);
return RunSQL(sql, ens);
}
///
///
///
public static bool lockRunSQL = false;
///
/// 执行sql
///
///
///
///
public static int RunSQL(string sql, Paras paras)
{
if (DataType.IsNullOrEmpty(sql))
return 1;
int result = 0;
try
{
switch (AppCenterDBType)
{
case DBType.MSSQL:
result = RunSQL_200705_SQL(sql, paras);
break;
case DBType.Oracle:
result = RunSQL_200705_Ora(sql.Replace("]", "").Replace("[", ""), paras);
break;
case DBType.MySQL:
result = RunSQL_200705_MySQL(sql, paras);
break;
case DBType.PostgreSQL:
case DBType.HGDB:
result = RunSQL_201902_PSQL(sql, paras);
break;
case DBType.UX:
result = RunSQL_201902_UXQL(sql, paras);
break;
case DBType.DM:
result = RunSQL_20191230_DM(sql, paras);
break;
case DBType.KingBaseR3:
case DBType.KingBaseR6:
result = RunSQL_201902_KingBase(sql.Replace("]", "").Replace("[", ""), paras);
break;
//case DBType.Informix:
// result = RunSQL_201205_Informix(sql, paras);
// break;
default:
throw new Exception("err@RunSQL发现未知的数据库连接类型！");
}
lockRunSQL = false;
return result;
}
catch (Exception ex)
{
lockRunSQL = false;
string msg = "";
string mysql = sql.Clone() as string;
string dbstr = BP.Difference.SystemConfig.AppCenterDBVarStr;
foreach (Para p in paras)
{
msg += "@" + p.ParaName + "=" + p.val + "," + p.DAType.ToString();
string str = mysql;
mysql = mysql.Replace(dbstr + p.ParaName + ",", "'" + p.val + "',");
// add by qin 16/3/22
if (str == mysql)//表明类似":OID"的字段没被替换
mysql = mysql.Replace(dbstr + p.ParaName, "'" + p.val + "'");
}
throw new Exception("执行sql错误:" + ex.Message + " Paras(" + paras.Count + ")=" + msg + "
" + mysql);
}
}
private static Npgsql.NpgsqlConnection _conn = null;
private static bool isCloseConn = true;
private static Npgsql.NpgsqlConnection connOfPGSQL
{
get
{
return new Npgsql.NpgsqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (_conn == null)
{
_conn = new Npgsql.NpgsqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
return _conn;
}
return _conn;
}
}
private static Nuxsql.NuxsqlConnection connOfUXSQL
{
get
{
return new Nuxsql.NuxsqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
}
}
///
/// 运行sql返回结果
///
/// sql
/// 参数
/// 执行的结果
private static int RunSQL_201902_PSQL(string sql, Paras paras)
{
if (1 == 1)
{
if (paras == null)
paras = new Paras();
paras.SQL = sql;
}
Npgsql.NpgsqlConnection conn = DBAccess.connOfPGSQL;
if (conn.State != System.Data.ConnectionState.Open)
{
conn.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
conn.Open();
}
Npgsql.NpgsqlCommand cmd = new Npgsql.NpgsqlCommand(sql, conn);
cmd.CommandType = CommandType.Text;
try
{
foreach (Para para in paras)
{
Npgsql.NpgsqlParameter oraP = new Npgsql.NpgsqlParameter(para.ParaName, para.val);
cmd.Parameters.Add(oraP);
}
int i = cmd.ExecuteNonQuery();
cmd.Dispose();
if (isCloseConn == true)
conn.Close();
return i;
}
catch (System.Exception ex)
{
paras.SQL = sql;
string msg = "";
if (paras.Count == 0)
msg = "SQL=" + sql + ",异常信息:" + ex.Message;
else
msg = "SQL=" + paras.SQLNoPara + ",异常信息:" + ex.Message;
BP.DA.Log.DebugWriteError(msg);
throw new Exception(msg);
}
finally
{
if (cmd != null)
conn.Dispose();
if (cmd != null)
conn.Dispose();
}
}
private static int RunSQL_201902_KingBase(string sql, Paras paras)
{
if (1 == 1)
{
if (paras == null)
paras = new Paras();
paras.SQL = sql;
}
KdbndpConnection conn = new KdbndpConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != System.Data.ConnectionState.Open)
{
conn.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
conn.Open();
}
KdbndpCommand cmd = new KdbndpCommand(sql, conn);
cmd.CommandType = CommandType.Text;
try
{
foreach (Para para in paras)
{
KdbndpParameter oraP = new KdbndpParameter(para.ParaName, para.val);
cmd.Parameters.Add(oraP);
}
int i = cmd.ExecuteNonQuery();
cmd.Dispose();
if (isCloseConn == true)
conn.Close();
return i;
}
catch (System.Exception ex)
{
paras.SQL = sql;
string msg = "";
if (paras.Count == 0)
msg = "SQL=" + sql + ",异常信息:" + ex.Message;
else
msg = "SQL=" + paras.SQLNoPara + ",异常信息:" + ex.Message;
BP.DA.Log.DebugWriteError(msg);
throw new Exception(msg);
}
finally
{
if (cmd != null)
conn.Dispose();
if (cmd != null)
conn.Dispose();
}
}
private static int RunSQL_201902_UXQL(string sql, Paras paras)
{
if (1 == 1)
{
if (paras == null)
paras = new Paras();
paras.SQL = sql;
}
Nuxsql.NuxsqlConnection conn = DBAccess.connOfUXSQL;
if (conn.State != System.Data.ConnectionState.Open)
{
conn.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
conn.Open();
}
Nuxsql.NuxsqlCommand cmd = new Nuxsql.NuxsqlCommand(sql, conn);
cmd.CommandType = CommandType.Text;
try
{
foreach (Para para in paras)
{
Nuxsql.NuxsqlParameter oraP = new Nuxsql.NuxsqlParameter(para.ParaName, para.val);
cmd.Parameters.Add(oraP);
}
int i = cmd.ExecuteNonQuery();
cmd.Dispose();
if (isCloseConn == true)
conn.Close();
return i;
}
catch (System.Exception ex)
{
paras.SQL = sql;
string msg = "";
if (paras.Count == 0)
msg = "SQL=" + sql + ",异常信息:" + ex.Message;
else
msg = "SQL=" + paras.SQLNoPara + ",异常信息:" + ex.Message;
BP.DA.Log.DebugWriteError(msg);
throw new Exception(msg);
}
finally
{
if (cmd != null)
conn.Dispose();
if (cmd != null)
conn.Dispose();
}
}
private static int RunSQL_20191230_KingBase(string sql, Paras paras)
{
KdbndpConnection conn = new KdbndpConnection();
if (conn.State != ConnectionState.Open)
{
conn.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
conn.Open();
}
KdbndpCommand cmd = new KdbndpCommand(sql, conn);
cmd.CommandType = CommandType.Text;
try
{
if (paras != null)
{
foreach (Para para in paras)
{
KdbndpParameter oraP = new KdbndpParameter(para.ParaName, para.val);
cmd.Parameters.Add(oraP);
}
}
int i = cmd.ExecuteNonQuery();
return i;
}
catch (System.Exception ex)
{
paras.SQL = sql;
string msg = "";
if (paras.Count == 0)
msg = "SQL=" + sql + ",异常信息:" + ex.Message;
else
msg = "SQL=" + paras.SQLNoPara + ",异常信息:" + ex.Message;
BP.DA.Log.DebugWriteError(msg);
throw new Exception(msg);
}
finally
{
if (cmd != null)
cmd.Dispose();
if (conn != null)
conn.Close();
}
}
///
/// 运行sql返回结果
///
/// sql
/// 参数
/// 执行的结果
private static int RunSQL_20191230_DM(string sql, Paras paras)
{
DmConnection conn = new DmConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != ConnectionState.Open)
{
conn.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
conn.Open();
}
DmCommand cmd = new DmCommand(sql, conn);
cmd.CommandType = CommandType.Text;
try
{
if (paras != null)
{
foreach (Para para in paras)
{
DmParameter oraP = new DmParameter(para.ParaName, para.val);
cmd.Parameters.Add(oraP);
}
}
int i = cmd.ExecuteNonQuery();
return i;
}
catch (System.Exception ex)
{
paras.SQL = sql;
string msg = "";
if (paras.Count == 0)
msg = "SQL=" + sql + ",异常信息:" + ex.Message;
else
msg = "SQL=" + paras.SQLNoPara + ",异常信息:" + ex.Message;
BP.DA.Log.DebugWriteError(msg);
throw new Exception(msg);
}
finally
{
if (cmd != null)
cmd.Dispose();
if (conn != null)
conn.Close();
}
}
private static int RunSQL_200705_SQL(string sql, Paras paras)
{
SqlConnection conn = new SqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != System.Data.ConnectionState.Open)
{
conn.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
conn.Open();
}
SqlCommand cmd = new SqlCommand(sql, conn);
cmd.CommandType = CommandType.Text;
try
{
foreach (Para para in paras)
{
SqlParameter oraP = new SqlParameter(para.ParaName, para.val);
cmd.Parameters.Add(oraP);
}
int i = cmd.ExecuteNonQuery();
return i;
}
catch (System.Exception ex)
{
paras.SQL = sql;
string msg = "";
if (paras.Count == 0)
msg = "SQL=" + sql + ",异常信息:" + ex.Message;
else
msg = "SQL=" + paras.SQLNoPara + ",异常信息:" + ex.Message;
BP.DA.Log.DebugWriteError(msg);
throw new Exception(msg);
}
finally
{
if (cmd != null)
cmd.Dispose();
if (conn != null)
conn.Close();
}
}
#region 处理mysql conn的缓存.
private static Hashtable _ConnHTOfMySQL = null;
public static Hashtable ConnHTOfMySQL
{
get
{
if (_ConnHTOfMySQL == null || _ConnHTOfMySQL.Count <= 0)
{
_ConnHTOfMySQL = new Hashtable();
int numConn = 10;
for (int i = 0; i < numConn; i++)
{
MySqlConnection conn = new MySqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
conn.Open(); //打开连接.
_ConnHTOfMySQL.Add("Conn" + i, conn);
}
}
return _ConnHTOfMySQL;
}
}
#endregion 处理mysql conn的缓存.
///
/// RunSQL_200705_MySQL
///
///
///
///
private static int RunSQL_200705_MySQL(string sql, Paras paras)
{
MySqlConnection connOfMySQL = new MySqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (connOfMySQL.State != System.Data.ConnectionState.Open)
{
connOfMySQL.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
connOfMySQL.Open();
}
try
{
MySqlCommand cmd = new MySqlCommand(sql, connOfMySQL);
cmd.CommandType = CommandType.Text;
if (paras != null)
{
foreach (Para para in paras)
{
MySqlParameter oraP = new MySqlParameter(para.ParaName, para.val);
cmd.Parameters.Add(oraP);
}
}
return cmd.ExecuteNonQuery();
}
catch (System.Exception ex)
{
throw new Exception("err@RunSQL_200705_MySQL:" + ex.Message + "@SQL:" + sql);
}
finally
{
if (connOfMySQL != null)
connOfMySQL.Dispose();
if (connOfMySQL != null)
connOfMySQL.Close();
}
}
private static int RunSQL_200705_Ora(string sql, Paras paras)
{
if (sql.EndsWith(";") == true)
sql = "begin " + sql + " end;";
OracleConnection conn = new OracleConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != System.Data.ConnectionState.Open)
{
conn.ConnectionString = BP.Difference.SystemConfig.AppCenterDSN;
conn.Open();
}
OracleCommand cmd = new OracleCommand(sql, conn);
cmd.CommandType = CommandType.Text;
cmd.BindByName = true;
try
{
foreach (Para para in paras)
{
OracleParameter oraP = new OracleParameter(para.ParaName, para.DATypeOfOra);
oraP.Size = para.Size;
if (para.DATypeOfOra == OracleDbType.Clob)
{
if (DataType.IsNullOrEmpty(para.val as string) == true)
oraP.Value = DBNull.Value;
else
oraP.Value = para.val;
}
else
oraP.Value = para.val;
oraP.DbType = para.DAType;
cmd.Parameters.Add(oraP);
}
return cmd.ExecuteNonQuery();
}
catch (System.Exception ex)
{
if (paras != null)
{
foreach (Para item in paras)
{
if (item.DAType == DbType.String)
{
if (sql.Contains(":" + item.ParaName + ","))
sql = sql.Replace(":" + item.ParaName + ",", "'" + item.val + "',");
else
sql = sql.Replace(":" + item.ParaName, "'" + item.val + "'");
}
else
{
if (sql.Contains(":" + item.ParaName + ","))
sql = sql.Replace(":" + item.ParaName + ",", item.val + ",");
else
sql = sql.Replace(":" + item.ParaName, item.val.ToString());
}
}
}
if (BP.Difference.SystemConfig.isDebug)
{
string msg = "RunSQL2 SQL=" + sql + ex.Message;
//Log.DebugWriteError(msg);
throw new Exception("err@" + ex.Message + " SQL=" + sql);
}
else
{
// Log.DebugWriteError(ex.Message);
throw new Exception(ex.Message + "@可以执行的SQL:" + sql);
}
}
finally
{
if (cmd != null)
cmd.Dispose();
if (conn != null)
conn.Close();
}
}
#endregion
#endregion
#region 运行SQL 返回 DataTable
#region SqlConnection
///
/// 锁
///
private static bool lock_msSQL_ReturnTable = false;
public static DataTable RunSQLReturnTable(string oraSQL, OracleConnection conn, CommandType sqlType, string dsn)
{
try
{
if (conn == null)
{
conn = new OracleConnection(dsn);
conn.Open();
}
if (conn.State != ConnectionState.Open)
{
conn.ConnectionString = dsn;
conn.Open();
}
OracleDataAdapter oraAda = new OracleDataAdapter(oraSQL, conn);
oraAda.SelectCommand.CommandType = sqlType;
DataTable oratb = new DataTable("otb");
oraAda.Fill(oratb);
// peng add 07-19
oraAda.Dispose();
return oratb;
}
catch (System.Exception ex)
{
throw new Exception(ex.Message + " [RunSQLReturnTable on OracleConnection dsn=App ] sql=" + oraSQL + "
");
}
finally
{
if (conn != null)
conn.Dispose();
}
}
///
///
///
///
///
///
///
///
public static DataTable RunSQLReturnTable(string msSQL, SqlConnection conn, string connStr, CommandType sqlType, Paras paras)
{
if (conn.State == ConnectionState.Closed)
{
conn.ConnectionString = connStr;
conn.Open();
}
while (lock_msSQL_ReturnTable)
{
}
SqlDataAdapter msAda = new SqlDataAdapter(msSQL, conn);
msAda.SelectCommand.CommandType = sqlType;
if (paras != null)
{
//CommandType.
foreach (Para para in paras)
{
msAda.SelectCommand.Parameters.AddWithValue(para.ParaName, para.val);
}
}
DataTable mstb = new DataTable("mstb");
//如果是锁定状态，就等待
lock_msSQL_ReturnTable = true; //锁定
try
{
msAda.Fill(mstb);
lock_msSQL_ReturnTable = false;// 返回前一定要开锁
}
catch (System.Exception ex)
{
lock_msSQL_ReturnTable = false;
BP.DA.Log.DebugWriteError(ex.Message);
throw new Exception("[RunSQLReturnTable on SqlConnection 1]" + "
" + ex.Message + " sql=" + msSQL);
}
finally
{
if (msAda != null)
msAda.Dispose();
if (conn != null)
conn.Close();
}
return mstb;
}
#endregion SqlConnection
#region OracleConnection
private static DataTable RunSQLReturnTable_20191231_DM(string selectSQL, Paras paras)
{
DmConnection conn = new DmConnection(BP.Difference.SystemConfig.AppCenterDSN);
try
{
if (conn.State != ConnectionState.Open)
conn.Open();
DmDataAdapter ada = new DmDataAdapter(selectSQL, conn);
ada.SelectCommand.CommandType = CommandType.Text;
// 加入参数
if (paras != null)
{
foreach (Para para in paras)
{
DmParameter myParameter = new DmParameter(para.ParaName, para.DATypeOfOra);
myParameter.Size = para.Size;
myParameter.Value = para.val;
ada.SelectCommand.Parameters.Add(myParameter);
}
}
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
ada.Dispose();
return oratb;
}
catch (System.Exception ex)
{
string msg = "@运行查询在(RunSQLReturnTable_20191231_DM with paras)出错 sql=" + selectSQL + " @异常信息：" + ex.Message;
msg += "@Para Num= " + paras.Count;
foreach (Para pa in paras)
{
msg += "@" + pa.ParaName + "=" + pa.val;
}
BP.DA.Log.DebugWriteError(msg);
throw new Exception(msg);
}
finally
{
if (conn != null)
conn.Close();
}
}
private static DataTable RunSQLReturnTable_200705_Ora(string selectSQL, Paras paras)
{
OracleConnection conn = new OracleConnection(BP.Difference.SystemConfig.AppCenterDSN);
try
{
if (conn.State != ConnectionState.Open)
conn.Open();
OracleDataAdapter ada = new OracleDataAdapter(selectSQL, conn);
ada.SelectCommand.CommandType = CommandType.Text;
// 加入参数
if (paras != null)
{
foreach (Para para in paras)
{
OracleParameter myParameter = new OracleParameter(para.ParaName, para.DATypeOfOra);
myParameter.Size = para.Size;
myParameter.Value = para.val;
ada.SelectCommand.Parameters.Add(myParameter);
}
}
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
ada.Dispose();
return oratb;
}
catch (System.Exception ex)
{
string msg = "@运行查询在(RunSQLReturnTable_200705_Ora with paras)出错 sql=" + selectSQL + " @异常信息：" + ex.Message;
msg += "@Para Num= " + paras.Count;
foreach (Para pa in paras)
{
msg += "@" + pa.ParaName + "=" + pa.val;
}
BP.DA.Log.DebugWriteError(msg);
throw new Exception(msg);
}
finally
{
if (conn != null)
conn.Close();
}
}
private static DataTable RunSQLReturnTable_200705_SQL(string sql, Paras paras)
{
SqlConnection conn = new SqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != ConnectionState.Open)
conn.Open();
SqlDataAdapter ada = new SqlDataAdapter(sql, conn);
ada.SelectCommand.CommandType = CommandType.Text;
// 加入参数
if (paras != null)//qin 解决为null时的异常
{
foreach (Para para in paras)
{
SqlParameter myParameter = new SqlParameter(para.ParaName, para.val);
myParameter.Size = para.Size;
ada.SelectCommand.Parameters.Add(myParameter);
}
}
try
{
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
return oratb;
}
catch (Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw new Exception("SQL=" + sql + " Exception=" + ex.Message);
}
finally
{
if (ada != null)
ada.Dispose();
if (conn != null)
conn.Dispose();
}
}
private static DataTable RunProcReturnTable_SQL(string sql, Paras paras)
{
SqlConnection conn = new SqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != ConnectionState.Open)
conn.Open();
SqlCommand comm = new SqlCommand(sql, conn);
comm.CommandType = CommandType.StoredProcedure;
// 加入参数
if (paras != null)//qin 解决为null时的异常
{
foreach (Para para in paras)
{
SqlParameter myParameter = new SqlParameter("@" + para.ParaName, para.val);
//myParameter.Value = para.val;
myParameter.Size = para.Size;
myParameter.Direction = ParameterDirection.Input;
comm.Parameters.Add(myParameter);
}
}
SqlDataAdapter ada = new SqlDataAdapter(comm);
try
{
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
return oratb;
}
catch (Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw new Exception("SQL=" + sql + " Exception=" + ex.Message);
}
finally
{
if (ada != null)
ada.Dispose();
if (conn != null)
conn.Dispose();
}
}
private static DataTable RunSQLReturnTable_201902_KingBase(string sql, Paras paras)
{
KdbndpConnection conn = new KdbndpConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != ConnectionState.Open)
conn.Open();
KdbndpDataAdapter ada = new KdbndpDataAdapter(sql, conn);
ada.SelectCommand.CommandType = CommandType.Text;
// 加入参数
if (paras != null)//qin 解决为null时的异常
{
foreach (Para para in paras)
{
// 2019-8-8 zl 适配postgreSql新版驱动，要求数据类型一致
object valObj = para.val;
KdbndpParameter myParameter = new KdbndpParameter(para.ParaName, valObj);
myParameter.Size = para.Size;
ada.SelectCommand.Parameters.Add(myParameter);
}
}
try
{
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
return oratb;
}
catch (Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw new Exception("SQL=" + sql + " Exception=" + ex.Message);
}
finally
{
if (ada != null)
ada.Dispose();
if (conn != null)
conn.Dispose();
}
}
private static DataTable RunSQLReturnTable_201902_UXQL(string sql, Paras paras)
{
Nuxsql.NuxsqlConnection conn = DBAccess.connOfUXSQL; // new Nuxsql.NuxsqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != ConnectionState.Open)
conn.Open();
Nuxsql.NuxsqlDataAdapter ada = new Nuxsql.NuxsqlDataAdapter(sql, conn);
ada.SelectCommand.CommandType = CommandType.Text;
// 加入参数
if (paras != null)//qin 解决为null时的异常
{
foreach (Para para in paras)
{
// 2019-8-8 zl 适配postgreSql新版驱动，要求数据类型一致
object valObj = para.val;
Nuxsql.NuxsqlParameter myParameter = new Nuxsql.NuxsqlParameter(para.ParaName, valObj);
myParameter.Size = para.Size;
ada.SelectCommand.Parameters.Add(myParameter);
}
}
try
{
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
return oratb;
}
catch (Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw new Exception("SQL=" + sql + " Exception=" + ex.Message);
}
finally
{
if (ada != null)
ada.Dispose();
if (conn != null)
conn.Dispose();
}
}
///
/// 运行sql返回datatable
///
/// 要运行的SQL
/// 参数
/// 返回的数据.
private static DataTable RunSQLReturnTable_201902_PSQL(string sql, Paras paras)
{
Npgsql.NpgsqlConnection conn = DBAccess.connOfPGSQL; // new Npgsql.NpgsqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != ConnectionState.Open)
conn.Open();
Npgsql.NpgsqlDataAdapter ada = new Npgsql.NpgsqlDataAdapter(sql, conn);
ada.SelectCommand.CommandType = CommandType.Text;
// 加入参数
if (paras != null)//qin 解决为null时的异常
{
foreach (Para para in paras)
{
// 2019-8-8 zl 适配postgreSql新版驱动，要求数据类型一致
object valObj = para.val;
Npgsql.NpgsqlParameter myParameter = new Npgsql.NpgsqlParameter(para.ParaName, valObj);
myParameter.Size = para.Size;
ada.SelectCommand.Parameters.Add(myParameter);
}
}
try
{
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
return oratb;
}
catch (Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw new Exception("SQL=" + sql + " Exception=" + ex.Message);
}
finally
{
if (ada != null)
ada.Dispose();
if (conn != null)
conn.Dispose();
}
}
private static DataTable RunSQLReturnTable_200705_KingBase(string sql, Paras paras)
{
KdbndpConnection conn = new KdbndpConnection(BP.Difference.SystemConfig.AppCenterDSN); // new Npgsql.NpgsqlConnection(BP.Difference.SystemConfig.AppCenterDSN);
if (conn.State != ConnectionState.Open)
conn.Open();
KdbndpDataAdapter ada = new KdbndpDataAdapter(sql, conn);
ada.SelectCommand.CommandType = CommandType.Text;
// 加入参数
if (paras != null)//qin 解决为null时的异常
{
foreach (Para para in paras)
{
KdbndpParameter myParameter = new KdbndpParameter(para.ParaName, para.DATypeOfOra);
myParameter.Size = para.Size;
myParameter.Value = para.val;
ada.SelectCommand.Parameters.Add(myParameter);
}
}
try
{
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
return oratb;
}
catch (Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw new Exception("SQL=" + sql + " Exception=" + ex.Message);
}
finally
{
if (ada != null)
ada.Dispose();
if (conn != null)
conn.Dispose();
}
}
private static DataTable RunSQLReturnTable_200705_MySQL(string sql, Paras paras)
{
using (MySqlConnection conn = new MySqlConnection(BP.Difference.SystemConfig.AppCenterDSN))
{
using (MySqlDataAdapter ada = new MySqlDataAdapter(sql, conn))
{
try
{
if (conn.State != ConnectionState.Open)
conn.Open();
ada.SelectCommand.CommandType = CommandType.Text;
// 加入参数
if (paras != null)
{
foreach (Para para in paras)
{
MySqlParameter myParameter = new MySqlParameter(para.ParaName, para.val);
myParameter.Size = para.Size;
ada.SelectCommand.Parameters.Add(myParameter);
}
}
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
return oratb;
}
catch (Exception ex)
{
conn.Close();
throw new Exception("SQL=" + sql + " Exception=" + ex.Message);
}
}
}
}
private static DataTable RunProcReturnTable_MySQL(string sql, Paras paras)
{
using (MySqlConnection conn = new MySqlConnection(BP.Difference.SystemConfig.AppCenterDSN))
{
using (MySqlDataAdapter ada = new MySqlDataAdapter(sql, conn))
{
if (conn.State != ConnectionState.Open)
conn.Open();
ada.SelectCommand.CommandType = CommandType.StoredProcedure;
// 加入参数
if (paras != null)
{
foreach (Para para in paras)
{
MySqlParameter myParameter = new MySqlParameter("_" + para.ParaName, para.val);
ada.SelectCommand.Parameters.Add(myParameter);
}
}
try
{
DataTable oratb = new DataTable("otb");
ada.Fill(oratb);
return oratb;
}
catch (Exception ex)
{
conn.Close();
throw new Exception("SQL=" + sql + " Exception=" + ex.Message);
}
}
}
}
#endregion
#endregion
#region 在当前Connection上执行
public static DataTable RunSQLReturnTable(Paras ps)
{
return RunSQLReturnTable(ps.SQL, ps);
}
public static int RunSQLReturnTableCount = 0;
///
/// 传递一个select 语句返回一个查询结果集合。
///
/// select sql
/// 查询结果集合DataTable
public static DataTable RunSQLReturnTable(string sql)
{
Paras ps = new Paras();
return RunSQLReturnTable(sql, ps);
}
public static DataTable RunSQLReturnTable(string sql, string key, object val)
{
Paras ens = new Paras();
ens.Add(key, val);
return RunSQLReturnTable(sql, ens);
}
///
/// 通用SQL查询分页返回DataTable
///
/// SQL语句，不带排序（Order By）语句
/// 每页记录数量
/// 请求页码
/// 记录主键（不能为空，不能有重复，必须包含在返回字段中）
/// 排序字段（此字段必须包含在返回字段中）
/// 排序方式，ASC/DESC
///
public static DataTable RunSQLReturnTable(string sql, int pageSize, int pageIdx, string key, string orderKey, string orderType)
{
switch (DBAccess.AppCenterDBType)
{
case DBType.MSSQL:
return RunSQLReturnTable_201612_SQL(sql, pageSize, pageIdx, key, orderKey, orderType);
case DBType.Oracle:
return RunSQLReturnTable_201612_Ora(sql, pageSize, pageIdx, orderKey, orderType);
case DBType.DM:
return RunSQLReturnTable_201612_Ora(sql, pageSize, pageIdx, orderKey, orderType);
case DBType.MySQL:
return RunSQLReturnTable_201612_MySql(sql, pageSize, pageIdx, key, orderKey, orderType);
case DBType.PostgreSQL:
case DBType.UX:
case DBType.HGDB:
return RunSQLReturnTable_201612_PostgreSQL(sql, pageSize, pageIdx, key, orderKey, orderType);
case DBType.KingBaseR3:
case DBType.KingBaseR6:
return RunSQLReturnTable_201612_KingBase(sql, pageSize, pageIdx, key, orderKey, orderType);
default:
throw new Exception("@未涉及的数据库类型！");
}
}
private static DataTable RunSQLReturnTable_201612_PostgreSQL(string sql, int pageSize, int pageIdx, string key, string orderKey, string orderType)
{
string sqlstr = string.Empty;
orderType = DataType.IsNullOrEmpty(orderType) ? "ASC" : orderType.ToUpper();
if (pageIdx < 1)
pageIdx = 1;
// limit A offset B; A就是你需要多少行B就是查询的起点位置
sqlstr = "SELECT * FROM (" + sql + ") T1 WHERE T1." + key + (orderType.Equals("ASC") ? " >= " : " <= ")
+ "(SELECT T2." + key + " FROM (" + sql + ") T2"
+ (DataType.IsNullOrEmpty(orderKey)
? string.Empty
: string.Format(" ORDER BY T2.{0} {1}", orderKey, orderType))
+ " LIMIT " + ((pageIdx - 1) * pageSize + 1) + " offset 1) LIMIT " + pageSize;
return RunSQLReturnTable(sqlstr);
}
private static DataTable RunSQLReturnTable_201612_KingBase(string sql, int pageSize, int pageIdx, string key, string orderKey, string orderType)
{
string sqlstr = string.Empty;
orderType = DataType.IsNullOrEmpty(orderType) ? "ASC" : orderType.ToUpper();
if (pageIdx < 1)
pageIdx = 1;
// limit A offset B; A就是你需要多少行B就是查询的起点位置
sqlstr = "SELECT * FROM (" + sql + ") T1 WHERE T1." + key + (orderType.Equals("ASC") ? " >= " : " <= ")
+ "(SELECT T2." + key + " FROM (" + sql + ") T2"
+ (DataType.IsNullOrEmpty(orderKey)
? string.Empty
: string.Format(" ORDER BY T2.{0} {1}", orderKey, orderType))
+ " LIMIT " + ((pageIdx - 1) * pageSize + 1) + " offset 1) LIMIT " + pageSize;
return RunSQLReturnTable(sqlstr);
}
///
/// 通用SqlServer查询分页返回DataTable
///
/// SQL语句，不带排序（Order By）语句
/// 每页记录数量
/// 请求页码
/// 记录主键（不能为空，不能有重复，必须包含在返回字段中）
/// 排序字段（此字段必须包含在返回字段中）
/// 排序方式，ASC/DESC
///
private static DataTable RunSQLReturnTable_201612_SQL(string sql, int pageSize, int pageIdx, string key, string orderKey, string orderType)
{
string sqlstr = string.Empty;
orderType = DataType.IsNullOrEmpty(orderType) ? "ASC" : orderType.ToUpper();
if (pageIdx < 1)
pageIdx = 1;
if (pageIdx == 1)
{
sqlstr = "SELECT TOP " + pageSize + " * FROM (" + sql + ") T1" +
(DataType.IsNullOrEmpty(orderKey)
? string.Empty
: string.Format(" ORDER BY T1.{0} {1}", orderKey, orderType));
}
else
{
sqlstr = "SELECT TOP " + pageSize + " * FROM (" + sql + ") T1"
+ " WHERE T1." + key + (orderType.Equals("ASC") ? " > " : " < ") + "("
+ " SELECT " + (orderType.Equals("ASC") ? "MAX(T3." : "MIN(T3.") + key + ") FROM ("
+ " SELECT TOP ((" + pageIdx + " - 1) * 10) T2." + key + "FROM (" + sql + ") T2"
+ (DataType.IsNullOrEmpty(orderKey)
? string.Empty
: string.Format(" ORDER BY T2.{0} {1}", orderKey, orderType))
+ " ) T3)"
+ (DataType.IsNullOrEmpty(orderKey)
? string.Empty
: string.Format(" ORDER BY T.{0} {1}", orderKey, orderType));
}
return RunSQLReturnTable(sqlstr);
}
///
/// 通用Oracle查询分页返回DataTable
///
/// SQL语句，不带排序（Order By）语句
/// 每页记录数量
/// 请求页码
/// 排序字段（此字段必须包含在返回字段中）
/// 排序方式，ASC/DESC
///
private static DataTable RunSQLReturnTable_201612_Ora(string sql, int pageSize, int pageIdx, string orderKey, string orderType)
{
if (pageIdx < 1)
pageIdx = 1;
int start = (pageIdx - 1) * pageSize + 1;
int end = pageSize * pageIdx;
orderType = DataType.IsNullOrEmpty(orderType) ? "ASC" : orderType.ToUpper();
string sqlstr = "SELECT * FROM ( SELECT T1.*, ROWNUM RN "
+ "FROM (SELECT * FROM (" + sql + ") T2 "
+
(DataType.IsNullOrEmpty(orderType)
? string.Empty
: string.Format("ORDER BY T2.{0} {1}", orderKey, orderType)) + ") T1 WHERE ROWNUM <= " +
end + " ) WHERE RN >=" + start;
return RunSQLReturnTable(sqlstr);
}
///
/// 通用MySql查询分页返回DataTable
///
/// SQL语句，不带排序（Order By）语句
/// 每页记录数量
/// 请求页码
/// 记录主键（不能为空，不能有重复，必须包含在返回字段中）
/// 排序字段（此字段必须包含在返回字段中）
/// 排序方式，ASC/DESC
///
private static DataTable RunSQLReturnTable_201612_MySql(string sql, int pageSize, int pageIdx, string key, string orderKey, string orderType)
{
string sqlstr = string.Empty;
orderType = DataType.IsNullOrEmpty(orderType) ? "ASC" : orderType.ToUpper();
if (pageIdx < 1)
pageIdx = 1;
sqlstr = "SELECT * FROM (" + sql + ") T1 WHERE T1." + key + (orderType.Equals("ASC") ? " >= " : " <= ")
+ "(SELECT T2." + key + " FROM (" + sql + ") T2"
+ (DataType.IsNullOrEmpty(orderKey)
? string.Empty
: string.Format(" ORDER BY T2.{0} {1}", orderKey, orderType))
+ " LIMIT " + ((pageIdx - 1) * pageSize) + ",1) LIMIT " + pageSize;
return RunSQLReturnTable(sqlstr);
}
private static bool lockRunSQLReTable = false;
///
/// 运行SQL
///
/// 带有参数的SQL语句
/// 参数
/// 返回执行结果
public static DataTable RunSQLReturnTable(string sql, Paras paras)
{
if (DataType.IsNullOrEmpty(sql))
throw new Exception("要执行的 sql = null ");
try
{
DataTable dt = null;
switch (AppCenterDBType)
{
case DBType.MSSQL:
dt = RunSQLReturnTable_200705_SQL(sql, paras);
break;
case DBType.Oracle:
dt = RunSQLReturnTable_200705_Ora(sql, paras);
break;
case DBType.DM:
dt = RunSQLReturnTable_20191231_DM(sql, paras);
break;
case DBType.PostgreSQL:
case DBType.HGDB:
dt = RunSQLReturnTable_201902_PSQL(sql, paras);
break;
case DBType.UX:
dt = RunSQLReturnTable_201902_UXQL(sql, paras);
break;
case DBType.MySQL:
dt = RunSQLReturnTable_200705_MySQL(sql, paras);
break;
case DBType.KingBaseR3:
case DBType.KingBaseR6:
dt = RunSQLReturnTable_200705_KingBase(sql, paras);
break;
default:
throw new Exception("err@RunSQLReturnTable发现未知的数据库连接类型！");
}
return dt;
}
catch (Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw ex;
}
}
public static DataTable RunProcReturnTable(string sql, Paras paras)
{
if (DataType.IsNullOrEmpty(sql))
throw new Exception("要执行的 sql = null ");
try
{
DataTable dt = null;
switch (AppCenterDBType)
{
case DBType.MSSQL:
dt = RunProcReturnTable_SQL(sql, paras);
break;
case DBType.MySQL:
dt = RunProcReturnTable_MySQL(sql, paras);
break;
case DBType.Oracle:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
case DBType.DM:
case DBType.PostgreSQL:
case DBType.UX:
case DBType.HGDB:
throw new Exception("err@RunProcReturnTable数据库类型还未处理！");
break;
default:
throw new Exception("err@RunProcReturnTable发现未知的数据库连接类型！");
}
return dt;
}
catch (Exception ex)
{
BP.DA.Log.DebugWriteError(ex.Message);
throw ex;
}
}
#endregion 在当前Connection上执行
#region 查询单个值的方法.
#region OleDbConnection
public static float RunSQLReturnValFloat(Paras ps)
{
return RunSQLReturnValFloat(ps.SQL, ps, 0);
}
public static float RunSQLReturnValFloat(string sql, Paras ps, float val)
{
ps.SQL = sql;
object obj = DBAccess.RunSQLReturnVal(ps);
try
{
if (obj == null || obj.ToString().Equals(""))
return val;
else
return float.Parse(obj.ToString());
}
catch (Exception ex)
{
throw new Exception(ex.Message + sql + " @OBJ=" + obj);
}
}
///
/// 运行sql返回float
///
/// 要执行的sql,返回一行一列.
/// 如果是空值就返回的默认值
/// float的返回值
public static float RunSQLReturnValFloat(string sql, float isNullAsVal)
{
return RunSQLReturnValFloat(sql, new Paras(), isNullAsVal);
}
///
/// sdfsd
///
///
///
public static float RunSQLReturnValFloat(string sql)
{
try
{
return float.Parse(DBAccess.RunSQLReturnVal(sql).ToString());
}
catch (Exception ex)
{
throw new Exception(ex.Message + sql);
}
}
public static int RunSQLReturnValInt(Paras ps, int IsNullReturnVal)
{
return RunSQLReturnValInt(ps.SQL, ps, IsNullReturnVal);
}
///
/// sdfsd
///
///
///
///
public static int RunSQLReturnValInt(string sql, int IsNullReturnVal)
{
object obj = "";
obj = DBAccess.RunSQLReturnVal(sql);
if (obj == null || obj.ToString().Equals("") || obj == DBNull.Value)
return IsNullReturnVal;
else
return Convert.ToInt32(obj);
}
public static int RunSQLReturnValInt(string sql, int IsNullReturnVal, Paras paras)
{
object obj = "";
obj = DBAccess.RunSQLReturnVal(sql, paras);
if (obj == null || obj.ToString().Equals(""))
return IsNullReturnVal;
else
return Convert.ToInt32(obj);
}
public static decimal RunSQLReturnValDecimal(string sql, decimal IsNullReturnVal, int blws)
{
Paras ps = new Paras();
ps.SQL = sql;
return RunSQLReturnValDecimal(ps, IsNullReturnVal, blws);
}
public static decimal RunSQLReturnValDecimal(Paras ps, decimal IsNullReturnVal, int blws)
{
try
{
object obj = DBAccess.RunSQLReturnVal(ps);
if (obj == null || obj.ToString().Equals(""))
return IsNullReturnVal;
else
{
decimal d = decimal.Parse(obj.ToString());
return decimal.Round(d, blws);
}
}
catch (Exception ex)
{
throw new Exception(ex.Message + ps.SQL);
}
}
public static int RunSQLReturnValInt(Paras ps)
{
string str = DBAccess.RunSQLReturnString(ps.SQL, ps);
if (str.Contains("."))
str = str.Substring(0, str.IndexOf("."));
try
{
return Convert.ToInt32(str);
}
catch (Exception ex)
{
throw new Exception("@" + ps.SQL + " Val=" + str + ex.Message);
}
}
public static int RunSQLReturnValInt(string sql)
{
object obj = DBAccess.RunSQLReturnVal(sql);
if (obj == null || obj == DBNull.Value)
throw new Exception("@没有获取您要查询的数据,请检查SQL:" + sql);
string s = obj.ToString();
if (s.Contains("."))
s = s.Substring(0, s.IndexOf("."));
return Convert.ToInt32(s);
}
public static int RunSQLReturnValInt(string sql, Paras paras)
{
return Convert.ToInt32(DBAccess.RunSQLReturnVal(sql, paras));
}
public static int RunSQLReturnValInt(string sql, Paras paras, int isNullAsVal)
{
try
{
return Convert.ToInt32(DBAccess.RunSQLReturnVal(sql, paras));
}
catch
{
return isNullAsVal;
}
}
public static string RunSQLReturnString(string sql, Paras ps)
{
if (ps == null)
ps = new Paras();
object obj = DBAccess.RunSQLReturnVal(sql, ps);
if (obj == DBNull.Value || obj == null)
return null;
else
return obj.ToString();
}
///
/// 执行查询返回结果,如果为dbNull 返回 null.
///
/// will run sql.
/// ,如果为dbNull 返回 null.
public static string RunSQLReturnString(string sql)
{
try
{
return RunSQLReturnString(sql, new Paras());
}
catch (Exception ex)
{
throw new Exception("@运行 RunSQLReturnString出现错误：" + ex.Message + sql);
}
}
public static string RunSQLReturnStringIsNull(Paras ps, string isNullAsVal)
{
string v = RunSQLReturnString(ps);
if (v == null)
return isNullAsVal;
else
return v;
}
///
/// 运行sql返回一个值
///
///
///
///
public static string RunSQLReturnStringIsNull(string sql, string isNullAsVal)
{
//try{
string s = RunSQLReturnString(sql, new Paras());
if (s == null)
return isNullAsVal;
return s;
//}
//catch (Exception ex)
//{
// Log.DebugWriteInfo("RunSQLReturnStringIsNull@" + ex.Message);
// return isNullAsVal;
//}
}
public static string RunSQLReturnString(Paras ps)
{
return RunSQLReturnString(ps.SQL, ps);
}
#endregion
#region SqlConnection
///
/// 查询单个值的方法
///
/// sql
/// SqlConnection
/// CommandType
/// pars
/// object
public static object RunSQLReturnVal(string sql, SqlConnection conn, CommandType sqlType, string dsn, params object[] pars)
{
object val = null;
SqlCommand cmd = null;
try
{
if (conn == null)
{
conn = new SqlConnection(dsn);
conn.Open();
}
if (conn.State != System.Data.ConnectionState.Open)
{
conn.ConnectionString = dsn;
conn.Open();
}
cmd = new SqlCommand(sql, conn);
cmd.CommandType = sqlType;
val = cmd.ExecuteScalar();
}
catch (System.Exception ex)
{
throw new Exception(ex.Message + " [RunSQLReturnVal on SqlConnection] " + sql);
}
finally
{
if (cmd != null)
cmd.Dispose();
if (conn != null)
conn.Close();
}
return val;
}
#endregion
#region 在当前的Connection执行 SQL 语句，返回首行首列
public static int RunSQLReturnCOUNT(string sql)
{
return RunSQLReturnTable(sql).Rows.Count;
//return RunSQLReturnVal( sql ,sql, sql );
}
public static object RunSQLReturnVal(string sql, Paras paras)
{
RunSQLReturnTableCount++;
DataTable dt = null;
switch (BP.Difference.SystemConfig.AppCenterDBType)
{
case DBType.Oracle:
dt = DBAccess.RunSQLReturnTable_200705_Ora(sql, paras);
break;
case DBType.DM:
dt = DBAccess.RunSQLReturnTable_20191231_DM(sql, paras);
break;
case DBType.MSSQL:
dt = DBAccess.RunSQLReturnTable_200705_SQL(sql, paras);
break;
case DBType.MySQL:
dt = DBAccess.RunSQLReturnTable_200705_MySQL(sql, paras);
break;
case DBType.PostgreSQL:
case DBType.HGDB:
dt = DBAccess.RunSQLReturnTable_201902_PSQL(sql, paras);
break;
case DBType.UX:
dt = DBAccess.RunSQLReturnTable_201902_UXQL(sql, paras);
break;
case DBType.KingBaseR3:
case DBType.KingBaseR6:
dt = DBAccess.RunSQLReturnTable_200705_KingBase(sql, paras);
break;
default:
throw new Exception("@没有判断的数据库类型");
}
if (dt.Rows.Count == 0)
return null;
return dt.Rows[0][0];
}
public static object RunSQLReturnVal(Paras ps)
{
return RunSQLReturnVal(ps.SQL, ps);
}
public static object RunSQLReturnVal(string sql)
{
RunSQLReturnTableCount++;
DataTable dt = null;
switch (BP.Difference.SystemConfig.AppCenterDBType)
{
case DBType.Oracle:
dt = DBAccess.RunSQLReturnTable_200705_Ora(sql, new Paras());
break;
case DBType.DM:
dt = DBAccess.RunSQLReturnTable_20191231_DM(sql, new Paras());
break;
case DBType.MSSQL:
dt = DBAccess.RunSQLReturnTable_200705_SQL(sql, new Paras());
break;
case DBType.PostgreSQL:
case DBType.HGDB:
dt = DBAccess.RunSQLReturnTable_201902_PSQL(sql, new Paras());
break;
case DBType.UX:
dt = DBAccess.RunSQLReturnTable_201902_UXQL(sql, new Paras());
break;
case DBType.MySQL:
dt = DBAccess.RunSQLReturnTable_200705_MySQL(sql, new Paras());
break;
case DBType.KingBaseR3:
case DBType.KingBaseR6:
dt = DBAccess.RunSQLReturnTable_200705_KingBase(sql, new Paras());
break;
default:
throw new Exception("@没有判断的数据库类型");
}
if (dt.Rows.Count == 0)
return null;
return dt.Rows[0][0];
}
#endregion
#endregion
#region 检查是不是存在
///
/// 检查是不是存在
///
/// sql
/// 检查是不是存在
public static bool IsExits(string sql)
{
if (sql.ToUpper().Contains("SELECT") == false)
throw new Exception("@非法的查询语句:" + sql);
if (RunSQLReturnVal(sql) == null)
return false;
return true;
}
public static bool IsExits(string sql, Paras ps)
{
if (RunSQLReturnVal(sql, ps) == null)
return false;
return true;
}
///
/// 获得table的主键
///
/// 表名称
/// 主键名称、没有返回为空.
public static string GetTablePKName(string table)
{
Paras ps = new Paras();
string sql = "";
switch (AppCenterDBType)
{
case DBType.Access:
return null;
case DBType.MSSQL:
sql = "SELECT CONSTRAINT_NAME,column_name FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE WHERE table_name =@Tab ";
ps.Add("Tab", table);
break;
case DBType.Oracle:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
case DBType.DM:
sql = "SELECT constraint_name, constraint_type,search_condition, r_constraint_name from user_constraints WHERE table_name = upper(:tab) AND constraint_type = 'P'";
ps.Add("Tab", table);
break;
case DBType.MySQL:
sql = "SELECT CONSTRAINT_NAME , column_name, table_name CONSTRAINT_NAME from INFORMATION_SCHEMA.KEY_COLUMN_USAGE WHERE table_name =@Tab and table_schema='" + BP.Difference.SystemConfig.AppCenterDBDatabase + "' ";
ps.Add("Tab", table);
break;
case DBType.Informix:
sql = "SELECT * FROM sysconstraints c inner join systables t on c.tabid = t.tabid where t.tabname = lower(?) and constrtype = 'P'";
ps.Add("Tab", table);
break;
case DBType.PostgreSQL:
case DBType.UX:
case DBType.HGDB:
sql = " SELECT ";
sql += " pg_constraint.conname AS pk_name ";
sql += " FROM ";
sql += " pg_constraint ";
sql += " INNER JOIN pg_class ON pg_constraint.conrelid = pg_class.oid ";
sql += " WHERE ";
sql += " pg_class.relname =:Tab ";
sql += " AND pg_constraint.contype = 'p' ";
ps.Add("Tab", table.ToLower());
break;
default:
throw new Exception("@GetTablePKName没有判断的数据库类型.");
}
DataTable dt = DBAccess.RunSQLReturnTable(sql, ps);
if (dt.Rows.Count == 0)
return null;
return dt.Rows[0][0].ToString();
}
///
/// 判断是否存在主键pk .
///
/// 物理表
/// 是否存在
public static bool IsExitsTabPK(string tab)
{
if (DBAccess.GetTablePKName(tab) == null)
return false;
else
return true;
}
///
/// 是否是view
///
///
///
public static bool IsView(string tabelOrViewName)
{
return IsView(tabelOrViewName, BP.Difference.SystemConfig.AppCenterDBType);
}
///
/// 是否是view
///
///
///
public static bool IsView(string tabelOrViewName, DBType dbType)
{
//if (dbType == null) dbType是Enum，永远不会为null. 张磊 2019-7-24
// dbType = BP.Difference.SystemConfig.AppCenterDBType;
string sql = "";
switch (dbType)
{
case DBType.Oracle:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
sql = "Select count(*) as nm From user_objects Where object_type='VIEW' and object_name=:v";
DataTable Oracledt = DBAccess.RunSQLReturnTable(sql, "v", tabelOrViewName.ToUpper());
if (Oracledt.Rows[0]["nm"].ToString().Equals("1"))
return true;
else
return false;
case DBType.DM:
sql = "SELECT TABTYPE FROM TAB WHERE UPPER(TNAME)=:v";
DataTable oradt = DBAccess.RunSQLReturnTable(sql, "v", tabelOrViewName.ToUpper());
if (oradt.Rows.Count == 0)
return false;
if (oradt.Rows[0][0].ToString().ToUpper().Trim().Equals("V"))
return true;
else
return false;
case DBType.MSSQL:
sql = "select xtype from sysobjects WHERE name =" + BP.Difference.SystemConfig.AppCenterDBVarStr + "v";
DataTable dt1 = DBAccess.RunSQLReturnTable(sql, "v", tabelOrViewName);
if (dt1.Rows.Count == 0)
return false;
if (dt1.Rows[0][0].ToString().ToUpper().Trim().Equals("V") == true)
return true;
else
return false;
case DBType.PostgreSQL:
case DBType.UX:
case DBType.HGDB:
sql = "select relkind from pg_class WHERE relname ='" + tabelOrViewName + "'";
DataTable dt3 = DBAccess.RunSQLReturnTable(sql);
if (dt3.Rows.Count == 0)
return false;
//如果是个表.
if (dt3.Rows[0][0].ToString().ToLower().Trim().Equals("r") == true)
return false;
else
return true;
case DBType.Informix:
sql = "select tabtype from systables where tabname = '" + tabelOrViewName.ToLower() + "'";
DataTable dtaa = DBAccess.RunSQLReturnTable(sql);
if (dtaa.Rows.Count == 0)
throw new Exception("@表不存在[" + tabelOrViewName + "]");
if (dtaa.Rows[0][0].ToString().ToUpper().Trim().Equals("V"))
return true;
else
return false;
case DBType.MySQL:
sql = "SELECT Table_Type FROM information_schema.TABLES WHERE table_name='" + tabelOrViewName + "' and table_schema='" + BP.Difference.SystemConfig.AppCenterDBDatabase + "'";
DataTable dt2 = DBAccess.RunSQLReturnTable(sql);
if (dt2.Rows.Count == 0)
return false;
if (dt2.Rows[0][0].ToString().ToUpper().Trim().Equals("VIEW"))
return true;
else
return false;
case DBType.Access:
sql = "select Type from msysobjects WHERE UCASE(name)='" + tabelOrViewName.ToUpper() + "'";
DataTable dtw = DBAccess.RunSQLReturnTable(sql);
if (dtw.Rows.Count == 0)
return false;
if (dtw.Rows[0][0].ToString().Trim().Equals("5"))
return true;
else
return false;
default:
throw new Exception("@没有做的判断。");
}
}
///
/// 是否存在
///
///
///
public static bool IsExitsObject(string obj)
{
if (DataType.IsNullOrEmpty(obj) == true)
return false;
obj = obj.Trim();
return IsExitsObject(new DBUrl(DBUrlType.AppCenterDSN), obj);
}
///
/// 判断系统中是否存在对象.
///
///
///
public static bool IsExitsObject(DBUrl dburl, string obj)
{
//有的同事写的表名包含dbo.导致创建失败.
obj = obj.Replace("dbo.", "");
obj = obj.Trim();
// 增加参数.
Paras ps = new Paras();
ps.Add("obj", obj);
switch (AppCenterDBType)
{
case DBType.Oracle:
case DBType.DM:
if (obj.IndexOf(".") != -1)
obj = obj.Split('.')[1];
return IsExits("select object_name from all_objects WHERE object_name = upper(:obj) and OWNER='" + DBAccess.ConnectionUserID.ToUpper() + "' ", ps);
case DBType.MSSQL:
return IsExits("SELECT name FROM sysobjects WHERE name = '" + obj + "'");
case DBType.PostgreSQL:
case DBType.UX:
case DBType.HGDB:
return IsExits("SELECT relname FROM pg_class WHERE relname = '" + obj.ToLower() + "'");
case DBType.Informix:
return IsExits("select tabname from systables where tabname = '" + obj.ToLower() + "'");
case DBType.MySQL:
/*如果不是检查的PK.*/
if (obj.IndexOf(".") != -1)
obj = obj.Split('.')[1];
// *** 屏蔽到下面的代码, 不需要从那个数据库里取，jflow 发现的bug edit by :zhoupeng 2016.01.26 for fuzhou.
return IsExits("SELECT table_name, table_type FROM information_schema.tables WHERE table_name = '" + obj + "' AND TABLE_SCHEMA='" + BP.Difference.SystemConfig.AppCenterDBDatabase + "' ");
case DBType.Access:
//return false ; //IsExits("SELECT * FROM MSysObjects WHERE (((MSysObjects.Name) = '"+obj+"' ))");
return IsExits("SELECT * FROM MSysObjects WHERE Name = '" + obj + "'");
case DBType.KingBaseR3:
case DBType.KingBaseR6:
if (obj.IndexOf(".") != -1)
obj = obj.Split('.')[1];
return IsExits("SELECT table_name, table_type FROM information_schema.tables WHERE table_name = '" + obj + "'");
break;
default:
throw new Exception("没有识别的数据库编号");
}
}
///
///是否存在索引？
///
/// 表名称
/// 索引名称
/// 是否存在索引？
public static bool IsExitsTableIndex(string table, string indexName)
{
string sql = "";
int i = 0;
switch (DBAccess.AppCenterDBType)
{
case DBType.MSSQL:
i = DBAccess.RunSQLReturnValInt("SELECT COUNT(*) FROM sys.indexes WHERE object_id=OBJECT_ID('" + table + "', N'U') and NAME='" + indexName + "'", 0);
break;
case DBType.MySQL:
sql = "SELECT count(*) FROM information_schema.statistics WHERE table_schema='" + BP.Difference.SystemConfig.AppCenterDBDatabase + "' AND table_name = '" + table + "' AND index_name = '" + indexName + "' ";
i = DBAccess.RunSQLReturnValInt(sql);
break;
case DBType.PostgreSQL:
case DBType.UX:
case DBType.HGDB:
sql = "SELECT count(*) FROM pg_indexes WHERE tablename = '" + table.ToLower() + "' ";
//string sql1 = "select count(*) from information_schema.statistics where table_name ='" + table.ToLower() + "' and index_name='" + indexName.ToLower() + "'";
i = DBAccess.RunSQLReturnValInt(sql);
break;
case DBType.DM:
if (table.IndexOf(".") != -1)
table = table.Split('.')[1];
i = DBAccess.RunSQLReturnValInt("SELECT COUNT(*) from user_indexes WHERE table_name= upper('" + table + "') ");
break;
case DBType.Oracle:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
if (table.IndexOf(".") != -1)
table = table.Split('.')[1];
i = DBAccess.RunSQLReturnValInt("SELECT COUNT(*) from user_indexes WHERE table_name= upper('" + table + "') ");
break;
default:
throw new Exception("err@IsExitsTableCol没有判断的数据库类型.");
}
if (i >= 1)
return true;
else
return false;
}
///
/// 表中是否存在指定的列
///
/// 表名
/// 列名
/// 是否存在
public static bool IsExitsTableCol(string table, string col)
{
Paras ps = new Paras();
ps.Add("tab", table);
ps.Add("col", col);
int i = 0;
switch (DBAccess.AppCenterDBType)
{
case DBType.MSSQL:
i = DBAccess.RunSQLReturnValInt("SELECT COUNT(*) FROM information_schema.COLUMNS WHERE TABLE_NAME='" + table + "' AND COLUMN_NAME='" + col + "'", 0);
break;
case DBType.MySQL:
string sql = "select count(*) FROM information_schema.columns WHERE TABLE_SCHEMA='" + BP.Difference.SystemConfig.AppCenterDBDatabase + "' AND table_name ='" + table + "' and column_Name='" + col + "'";
i = DBAccess.RunSQLReturnValInt(sql);
break;
case DBType.PostgreSQL:
case DBType.UX:
case DBType.HGDB:
string sql1 = "select count(*) from information_schema.columns where table_name ='" + table.ToLower() + "' and column_name='" + col.ToLower() + "'";
i = DBAccess.RunSQLReturnValInt(sql1);
break;
case DBType.Oracle:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
case DBType.DM:
if (table.IndexOf(".") != -1)
table = table.Split('.')[1];
i = DBAccess.RunSQLReturnValInt("SELECT COUNT(*) from user_tab_columns WHERE table_name= upper(:tab) AND column_name= upper(:col) ", ps);
break;
//case DBType.Informix:
// i = DBAccess.RunSQLReturnValInt("select count(*) from syscolumns c where tabid in (select tabid from systables where tabname = lower('" + table + "')) and c.colname = lower('" + col + "')", 0);
// break;
//case DBType.Access:
// return false;
// break;
default:
throw new Exception("err@IsExitsTableCol没有判断的数据库类型.");
}
if (i == 1)
return true;
else
return false;
}
#endregion
///
/// 获得表的基础信息，返回如下列:
/// 1, 字段名称，字段描述，字段类型，字段长度.
///
/// 表名
public static DataTable GetTableSchema(string tableName, bool isUpper = true)
{
string sql = "";
switch (BP.Difference.SystemConfig.AppCenterDBType)
{
case DBType.MSSQL:
sql = "SELECT column_name as FNAME, data_type as FTYPE, CHARACTER_MAXIMUM_LENGTH as FLEN , column_name as FDESC FROM information_schema.columns where table_name='" + tableName + "'";
break;
case DBType.Oracle:
case DBType.DM:
case DBType.KingBaseR3:
case DBType.KingBaseR6:
sql = "SELECT COLUMN_NAME as FNAME,DATA_TYPE as FTYPE,DATA_LENGTH as FLEN,COLUMN_NAME as FDESC FROM all_tab_columns WHERE table_name = upper('" + tableName + "')";
break;
case DBType.MySQL:
sql = "SELECT COLUMN_NAME FNAME,DATA_TYPE FTYPE,CHARACTER_MAXIMUM_LENGTH FLEN,COLUMN_COMMENT FDESC FROM information_schema.columns WHERE table_name='" + tableName + "' and TABLE_SCHEMA='" + BP.Difference.SystemConfig.AppCenterDBDatabase + "'";
break;
default:
break;
}
DataTable dt = DBAccess.RunSQLReturnTable(sql);
if (isUpper == false)
{
dt.Columns["FNAME"].ColumnName = "FName";
dt.Columns["FTYPE"].ColumnName = "FType";
dt.Columns["FLEN"].ColumnName = "FLen";
dt.Columns["FDESC"].ColumnName = "FDesc";
}
return dt;
}
#region LoadConfig
public static void LoadConfig(string cfgFile, string basePath)
{
if (!File.Exists(cfgFile))
throw new Exception("找不到配置文件==>[" + cfgFile + "]1");
StreamReader read = new StreamReader(cfgFile);
string firstline = read.ReadLine();
string cfg = read.ReadToEnd();
read.Close();
int start = cfg.ToLower().IndexOf("");
int end = cfg.ToLower().IndexOf("");
cfg = cfg.Substring(start, end - start + "