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users±í
name companyId companyName
company±í
companyId companyName
1 a¹«Ë¾
2 b¹«Ë¾
µ±Ìí¼Óuser±íʱ,¸ú¾ÝËùÌîµÄusers.comapnyId,Óô¥·¢Æ÷²úÉúusers.companyName¶ÔÓ¦µÄcompany±íµÄcompanyNameÖµ
select companyName from company where companyId =@companyId
SQL code:
create trigger tri_users_insert
on users
instead of insert
as
begin
insert users
select i.name,i.companyId,c.companyName
from inserted i,company c
where i.companyId=c.companyId
end
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SQL code:
create trigger tri_users_insert
on users
after insert
as
begin
update u
set u.companyName=c.companyName
from users u,inserted i,company c
where i.companyId=c.companyId and i.companyId=u.companyId
end
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