Question

我正在尝试删除表的最后一行，我有一个程序，它有效，但在我删除行之前，我需要将其移动到另一个表，工作类似于备份，是有没有办法在相同的过程中进行插入和删除，或者需要创建两个不同的过程？

Insert into T_CLIC_DELETE _LOG
values (iClic,iStatus ,dtDateCreated,iEDV)  
From T_STATUS_CLIC  
WHERE iClic = @iClic and dtDateCreated = (select max (dtDateCreated)  FROM T_STATUS_CLIC where iclic = @iClic );

并且需要删除部分之后：

DELETE  From T_STATUS_CLIC
WHERE iClic = @iClic and dtDateCreated = (select max (dtDateCreated)  
FROM T_STATUS_CLIC where iclic = @iClic );

Answer 1

是的，你可以用同样的程序来做。

只要T_CLIC_DELETE_LOG满足OUTPUT子句目标表的要求，您就可以在一个语句中完成所有操作。

;WITH T
     AS (SELECT TOP 1 *
         FROM   T_STATUS_CLIC
         WHERE  iClic = @iClic
         ORDER  BY dtDateCreated DESC)
DELETE T
OUTPUT deleted.iClic,
       deleted.iStatus,
       deleted.dtDateCreated,
       deleted.iEDV
INTO T_CLIC_DELETE_LOG

（如果TOP 1 WITH TIES符合条件，则应删除所有行，您可以使用MAX(dtDateCreated)

Answer 2

WITH    t AS
        (
        SELECT  TOP 1
                *
        FROM    t_status_clic
        WHERE   iClic = @iClic
        ORDER BY
                dtDateCreated DESC
        )
INSERT
INTO    t_clic_delete_log
SELECT  *
FROM    (
        DELETE
        FROM    t
        OUTPUT  DELETED.*
        ) q

在同一程序中插入和删除？

2 个答案: