SQL cursor用法实例

复制代码 代码如下:

DECLARE @OldId varchar(50)  

DECLARE @CustomerID varchar(50)  

DECLARE My_Cursor CURSOR –定义游标  

FOR (select CustomerID,oldid from Customer where Area=’bj’) –查出需要的集合放到游标中  

OPEN My_Cursor; –打开游标  

FETCH NEXT FROM My_Cursor INTO @CustomerID,@OldId; –读取第一行数据  

WHILE @@FETCH_STATUS = 0     

    BEGIN    

       DECLARE @OtherPro VARCHAR(500)  

       DECLARE @StatusID varchar(200)  

       DECLARE @Userid varchar(200)  

       DECLARE @FinalUserid varchar(200)  

      SELECT @OtherPro=OtherPro,@StatusID=CustomerStatusID,@Userid=UserID FROM bjsunmis.dbo.Customer WHERE CustomerID=@OldId;  

      SELECT @FinalUserid=UserID from Users where oldid=@Userid  

      INSERT INTO CustomerotherInfo(CustomerID,OtherPro,CustomerStatusID,UserID)VALUES(@CustomerID,@OtherPro,@StatusID,@FinalUserid)  

     FETCH NEXT FROM My_Cursor INTO @CustomerID,@OldId; –读取下一行数据      

    END 

CLOSE My_Cursor; –关闭游标  

DEALLOCATE My_Cursor; –释放游标  

GO