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SQL Server FAQ - sys.trigger_events - Event List of an Existing Trigger

By: FYIcenter.com

(Continued from previous topic...)

How To See the Event List of an Existing Trigger using sys.trigger_events?

If what are the DML events an existing tigger is handling, you can use the catalog view, sys.trigger_events. You need to join sys.trigger_events and sys.triggers to get a better list as shown in this tutorial example:

USE FyiCenterData
GO

SELECT t.name, e.type, e.type_desc
FROM sys.trigger_events AS e, sys.triggers AS t
WHERE e.object_id = t.object_id
GO
name           type   type_desc
-------------- ------ ---------
dml_message    1      INSERT
dml_message    2      UPDATE
dml_message    3      DELETE
new_user       1      INSERT
(4 row(s) affected)

The list clearly shows that dml_message handles 3 events: INSERT, UPDATE and DELETE.

(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?

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