Question

Good Afternoon All，

我的SQL Server 2005 DB中有两个表，Main和MSDRGWEIGHTS。我想创建一个存储过程，使用MSDRGWEIGHTS中的适当值更新Main.RelWeight。我已将以下代码编写为存储过程的一部分：

UPDATE MAIN 
left outer join MSDRGWEIGHTS AS W ON MAIN.MSDRG=W.MSDRG
SET M.RELWEIGHT =
CASE
WHEN M.DISCHARGEDATE BETWEEN 20071001 AND 20080930 THEN W.WEIGHTSOCT07
WHEN M.DISCHARGEDATE BETWEEN 20081001 AND 20090930 THEN W.WEIGHTSOCT08
END
END
GO

当我执行此代码时，收到错误消息，指出关键字左侧的语法不正确。任何人都可以建议使用存储过程更新RELWEIGHT的正确方法吗？或者，这是否超出了sproc的范围？

谢谢， SID

Answer 1

    UPDATE 
          m 
     SET m.RELWEIGHT= CASE
                        WHEN M.DISCHARGEDATE BETWEEN 20071001 AND 20080930 THEN W.WEIGHTSOCT07WHEN   
                       WHEN M.DISCHARGEDATE BETWEEN 20081001 AND 20090930 THEN W.WEIGHTSOCT08
    END 
    FROM 
          MAIN m 
   INNER JOIN MSDRGWEIGHTS mw 
   ON 
   mw.MSDRG = m.MSDRG

存储过程中的SQL Server 2005外部联接问题

1 个答案: