SQL Server触发器基础

SQL Server触发器基础

建立一个删除触发器

create trigger trig_MealRecords
on [dbo].[MealRecords]
after delete
as
begin
       insert into[dbo].[MealRecords_bk]  select * from deleted
end

删除触发器

drop trigger trig_passtime

解决问题：仅当使用了列的列表，并且identity_insert为on时才能在表中为标识列指定显示列

set IDENTITY_INSERT [dbo].[MealRecords_bk] on

查询数据库中所有触发器

select * from sys.objects where type='TR'

问题：
An explicit value for the identity column in table ‘dbo.TimeRecords_bk’ can only be specified when a column list is used and IDENTITY_INSERT is ON.
原因：被插入的表里有自增长列
方法：取消该列的自增长