游标的使用示例

DECLARE @OrderNO NVARCHAR(50);
DECLARE @OrderName NVARCHAR(50);
DECLARE @RMDSC NVARCHAR(500);
DECLARE cursorTest CURSOR
FOR
    SELECT  OrderNO ,
            OrderName ,
            RMDSC
    FROM    dbo.Material_SO_PipeOrder;  
OPEN cursorTest;--打开游标
FETCH NEXT FROM cursorTest INTO @OrderNO, @OrderName, @RMDSC;
WHILE @@FETCH_STATUS = 0
    BEGIN 
        PRINT ( @OrderName );
        FETCH NEXT FROM cursorTest INTO @OrderNO, @OrderName, @RMDSC; 
    END;


CLOSE cursorTest;--关闭游标,使用Close后,还可以用open打开
DEALLOCATE cursorTest;--删除(解除)游标，无法再open