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Home >> FAQs/Tutorials >> SQL Server FAQ
SQL Server FAQ - "CREATE TRIGGER" - Creating a DML Trigger
By: FYIcenter.com
(Continued from previous topic...)
How To Create a DML Trigger using CREATE TRIGGER Statements?
A DML trigger is a trigger declared to handle a DML event, which occurs
when an INSERT, UPDATE or DELETE statement is executed. If you want to create a DML trigger,
you should use the "CREATE TRIGGER" statement in the following format:
CREATE TRIGGER trigger_name ON table_name
AFTER INSERT, UPDATE, DELETE
AS
statements
GO
The tutorial exercise below shows you a very simple DML trigger defined on the fyi_users
table. It does nothing but printing a simple static message.
USE FyiCenterData;
GO
CREATE TRIGGER dml_message ON fyi_users
AFTER INSERT, UPDATE, DELETE
AS
PRINT 'Records are inserted, updated,'
+ ' or deleted in fyi_users';
GO
Command(s) completed successfully.
A simple DML trigger is defined on fyi_users now.
(Continued on next topic...)
- What Are Triggers?
- What Are the Basic Features of a Trigger?
- How To Create a Simple Table to Test Triggers?
- How To Create a DML Trigger using CREATE TRIGGER Statements?
- How To Test a DML Trigger?
- How To List All Triggers in the Database with sys.triggers?
- How To Modify Existing Triggers using "ALTER TRIGGER"?
- How To Delete Existing Triggers using "DROP TRIGGER"?
- How To Get the Definition of a Trigger Back?
- How To Disable Triggers using "DISABLE TRIGGER"?
- How To Create a Trigger for INSERT Only?
- How To See the Event List of an Existing Trigger using sys.trigger_events?
- How To Access the Inserted Record of an Event?
- How To Access the Deleted Record of an Event?
- How To Improve the Trigger to Handle NULL Values?
- What Happens to a Trigger with Multiple Affected Rows?
- How To Override DML Statements with Triggers?
- How To Create a DDL Trigger using "CREATE TRIGGER" Statements?
- Can You Roll Back the DDL Statement in a Trigger?
- Can You Create a Logon Trigger in SQL Server 2005 Express Edition?
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