INSERTED表中的多行

时间:2012-11-05 15:19:30

标签: sql sql-server sql-server-2008 tsql

在MS SQL Server中的表上,如果这些行满足特定条件,我需要对新行运行CLR存储过程。我认为这或多或少是直截了当的:

if ((SELECT Cabinet FROM INSERTED) = 1 OR (SELECT Cabinet FROM INSERTED) = 3) AND (SELECT Result_02 FROM INSERTED) = 'N'
BEGIN
    DECLARE @id int
    SET @id = (SELECT ID FROM INSERTED)
    exec PrintLabel
        @id,
        N'LP 2844 LGE'
END;

但是,最近开始抛出有关返回多行的子查询的错误。我了解到INSERT触发器对每个语句运行一次,不一定在各行上运行。因此,IF语句可以处理多行,从而导致错误。

我的问题是:如果批量添加行(在这种情况下通过MERGE语句),我如何迭代每个新行。

1 个答案:

答案 0 :(得分:1)

为N行调用存储过程仍然需要游标。

declare @id int
declare cur cursor fast_forward for 
    select  id 
    from    inserted 
    where   Cabinet in (1,3)
open cur
fetch next from cur into @id
while @@fetch_status = 0   
    begin
    exec PrintLabel @id, N'LP 2844 LGE'
    fetch next from cur into @id
    end
close cur
deallocate cur