create table aa(m int primary key ,n int references aa(m))
go
insert into aa(m)values(8)
select * from aa
go
delete from aa where m=8
alter table aa nocheck constraint all
update aa
set n = 2 where m=8
alter table aa check constraint all
drop table aa
go
insert into aa(m)values(8)
select * from aa
go
delete from aa where m=8
alter table aa nocheck constraint all
update aa
set n = 2 where m=8
alter table aa check constraint all
drop table aa
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货