Question

UPDATE Subscription.dbo.RefillSubscriptionHeader AS H
INNER JOIN Subscription.dbo.RefillSubscriptionDetail AS D 
ON D.reSubHeaderId = H.reSubHeaderId 
SET H.isActive2 = '0', D.isActive = '0'
WHERE reItemID = '56'

In the above query I am trying to join 2 tables and update the IsActive and IsActive2 columns.

Right now when I do a SQL syntax check I get

Incorrect syntax near the keyword ‘AS’.

If I cannot update 2 columns from 2 tables the best bet would be to update the H table.

Answer 1

Because an UPDATE statement will only hit one table, your best bet would then be

UPDATE H
 SET H.isActive2 = '0'
FROM Subscription.dbo.RefillSubscriptionHeader AS H
INNER JOIN Subscription.dbo.RefillSubscriptionDetail AS D 
ON D.reSubHeaderId = H.reSubHeaderId 
WHERE reItemID = '56'

Of course, you can put both updates in one TRANSACTION, and if you provide the right TRANSACTION ISOLATION LEVEL you can still ensure the “atomicity” of the operation