Home >> FAQs/Tutorials >> SQL Server FAQ

SQL Server FAQ - Testing DML Triggers

By: FYIcenter.com

(Continued from previous topic...)

How To Test a DML Trigger?

To test a DML trigger defined on a table, you just need to execute several INSERT, UPDATE and DELETE statements on that table as shown in this tutorial example:

USE FyiCenterData;
GO

INSERT INTO fyi_users (name) VALUES ('FYI Admin');
GO
Records are inserted, updated, or deleted in fyi_users
(1 row(s) affected)

UPDATE fyi_users SET email='root@fyicenter' 
  WHERE name = 'FYI Admin';
GO
Records are inserted, updated, or deleted in fyi_users
(1 row(s) affected)

DELETE FROM fyi_users WHERE name = 'FYI Admin';
GO
Records are inserted, updated, or deleted in fyi_users
(1 row(s) affected)

The trigger, dml_message, is working as expected.

(Continued on next topic...)

1. What Are Triggers?
2. What Are the Basic Features of a Trigger?
3. How To Create a Simple Table to Test Triggers?
4. How To Create a DML Trigger using CREATE TRIGGER Statements?
5. How To Test a DML Trigger?
6. How To List All Triggers in the Database with sys.triggers?
7. How To Modify Existing Triggers using "ALTER TRIGGER"?
8. How To Delete Existing Triggers using "DROP TRIGGER"?
9. How To Get the Definition of a Trigger Back?
10. How To Disable Triggers using "DISABLE TRIGGER"?
11. How To Create a Trigger for INSERT Only?
12. How To See the Event List of an Existing Trigger using sys.trigger_events?
13. How To Access the Inserted Record of an Event?
14. How To Access the Deleted Record of an Event?
15. How To Improve the Trigger to Handle NULL Values?
16. What Happens to a Trigger with Multiple Affected Rows?
17. How To Override DML Statements with Triggers?
18. How To Create a DDL Trigger using "CREATE TRIGGER" Statements?
19. Can You Roll Back the DDL Statement in a Trigger?
20. Can You Create a Logon Trigger in SQL Server 2005 Express Edition?