SQL Clone
SQLServerCentral is supported by Redgate
Log in  ::  Register  ::  Not logged in

SQL Server – DDL vs. DML Triggers

Although, DML and DDL triggers are used for different purposes, there are some similarities and differences between these.


Similarities between DDL and DML triggers:

1. Both are created using similar T-SQL syntax

2. Both can run .NET code

3. You can create multiple DDL and/or DML triggers on an object

4. The trigger and the triggering statement run as part of the same transaction

5. Both type of triggers can be nested


Differences between DDL and DML triggers:

1. There are no INSTEAD OF DDL triggers, they are only executed after the triggering statement is completed.

2. DML triggers use virtual tables INSERTED and DELETED which captures data modification, DDL triggers do not have this

3. DDL triggers captures information about the event that fired them using EVENTDATA() function.


Hope This Helps!


If you like this post, do like my Facebook Page -> SqlAndMe
EMail me your questions -> Vishal@SqlAndMe.com
Follow me on Twitter -> @SqlAndMe

Filed under: SQLServer, Working With Data


Leave a comment on the original post [sqlandme.com, opens in a new window]

Loading comments...