Trigger study

Trigger study
Catalog
Trigger introduction. 1
The advantage and disadvantage of trigger. 1
The advantage of trigger. 1
The disadvantage of trigger. 2
How to Create a Trigger. 2
The virtual table of inserted and deleted. 3
Recursive Triggers. 4
Direct Recursive Triggers. 4
Indirect Recursion Triggers. 4
 Trigger introduction
Trigger is a special kind of stored procedure, similar to other programming languages function events, SQL S