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alter table dbo.C
add constraint FK_C_A_AID
foreign key(AID) references dbo.A(AID)
on delete cascade
on update casade
go
alter table dbo.C
add constraint FK_C_B_BID
foreign key(BID) references dbo.B(BID)
on delete cascade
on update casade
go
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Alter TABLE [dbo].[T_USERGROUP] ADD
CONSTRAINT [FK_T_USERGROUP_T_ACCTTEMPLATE] FOREIGN KEY
(
[ATNAME]
) REFERENCES [dbo].[T_ACCTTEMPLATE] (
[ATNAME]
) ON Update CASCADE ON Delete CASCADE
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A:
int id
varchar(20) name
C:
int id
int Cid
varchar(100) info
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CREATE TRIGGER trg_a
ON A
FOR INSERT,UPDATE,DELETE
AS
BEGIN
DECLARE @nInsRows INT --ÓÃÓÚ²åÈë¼Ç¼ÌõÊýͳ¼Æ
&n
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