• 比如:SELECT No, Name, No as EmpNo,Name as EmpName,Email FROM WF_Emp WHERE No LIKE '%@key%'
• 初始化列表参数，该查询语句必须有No,Name两个列，注意显示数量限制。
• 很多场合下需要用到父子流程，在启动子流程的时候需要选择一个父流程。
• 实例:SELECT a.WorkID as No, a.Title as Name, a.Starter, a.WorkID As PWorkID, '011' as PFlowNo, a.FK_Node as PNodeID FROM WF_GenerWorkflow a, WF_GenerWorkerlist b WHERE A.WorkID=b.WorkID AND B.FK_Emp='@WebUser.No' AND B.IsPass=0 AND A.FK_Flow='011' AND a.Title Like '%@Key%'

• 比如:SELECT top 15 No,Name ,No as EmpNo,Name as EmpName ,Email FROM WF_Emp
• 或者:SELECT No,Name ,No as EmpNo,Name as EmpName ,Email FROM WF_Emp WHERE ROWID < 15
• 该数据源必须有No,Name两个列, 其他的列要与开始节点表单字段对应。
• 注意查询的数量，避免太多影响效率。

• 比如:SELECT No as EmpNo,Name as EmpName ,Email FROM WF_Emp WHERE No='@Key'
• 该数据源返回的列名大小写与开始节点表单的字段名匹配， 只有匹配成功的才能赋值.