复制代码 代码如下:
Create trigger tri_wk_CSVHead_History on wk_CSVHead_History
–声明一个tri_wk_CSVHead_History触发器,
instead of insert —插入操作被代替执行下面的操作
as
begin
declare YB cursor –声明一个游标
for
select NoteNO from inserted–这里的NoteNO要和下面的匹配
open YB
declare @NoteNO varchar(50)–这里的NoteNO要和上面的匹配,定义一个游标变量@NoteNO,用来操作insered表中的NoteNo.
fetch next from YB into @NoteNO–这里的NoteNO要是上面的匹配,移动游标
while(@@fetch_status=0)–0操作成功,-1 FETCH 语句失败或此行不在结果集中,-2 被提取的行不存在
begin
delete from wk_CSVDetail_History where NoteNO=@NoteNO
delete from wk_CSVHead_History where NoteNO=@NoteNO
fetch next from YB into @NoteNO –继续移动游标,直到@@fetch_status不等于时.
end
close YB –关闭游标
deallocate YB –释放游标
insert into wk_CSVHead_History select * from inserted
end
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