2更新语句输出条款

Question

UPDATE b 
SET b.update_flag=0 
from table1 a 
inner join table2 b on a.user_code=b.user_code 
where a.pin_number IS NULL 

UPDATE a 
SET a.pin_number = Adinfo.dbo.udf_ad_Encrypt(b.pin_number) 
from table1 a 
inner join table2 b on a.user_code=b.user_code 
where a.pin_number IS NULL 

有人可以帮助我，我怎么能写在SQL Server中输出条款

Answer 1

我看到的问题是什么：I should use output keyword and get the values from the second update statement and get those values inserted in first update statement. It can be done by using output clause. – Durga

你只需要改变你的更新陈述'的地方。
首先，您在表“b”中更新pin_number，然后在表“a”中将所有update_flag设置为“1”。

然后你根本不需要输出。只有一个限制：你必须把它包装在事务中。

BEGIN TRANSACTION 

UPDATE a 
SET a.pin_number = Adinfo.dbo.udf_ad_Encrypt(b.pin_number) 
from table1 a 
inner join table2 b on a.user_code=b.user_code 
where a.pin_number IS NULL 

UPDATE b 
SET b.update_flag=0 
from table1 a 
inner join table2 b on a.user_code=b.user_code 
where a.pin_number IS NULL 

COMMIT TRANSACTION