Microsoft has confirmed that a hacker who successfully exploits a zero-day SQL vulnerability could gain system administrator privileges. Here’s how to fix it.

IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[Event]') AND type in (N'U')) IF NOT EXISTS (SELECT * FROM sys.foreign_keys WHERE object ...

@klimov-paul No doubt, that there is the methods in Yii, to achieve this task and we can also use raw SQL, but 'IF NOT EXIST' is also very good feature and it would be good to implement this SQL ...