"ALTER TRIGGER" - Modifying Existing Triggers in SQL Server

Q

How To Modify Existing Triggers using "ALTER TRIGGER" in SQL Server?

✍: FYIcenter.com

A

If you want to make changes to an existing trigger, you could use the "ALTER TRIGGER" statements to refine the trigger again. The tutorial exercise below shows you how to modify the trigger defined in a previous tutorial:

USE FyiCenterData;
GO

ALTER TRIGGER dml_message ON fyi_users
AFTER INSERT, UPDATE, DELETE 
AS
  PRINT 'Time: '+CONVERT(VARCHAR(12),GETDATE());
  PRINT 'Records are inserted, updated,'
    + ' or deleted in fyi_users';
GO

UPDATE fyi_users SET email='john@fyicenter' WHERE id = 1;
GO
Time: Jul  1 2007 
Records are inserted, updated, or deleted in fyi_users

An extra printing statement is added the trigger.

⇒ "DROP TRIGGER" - Deleting Existing Triggers in SQL Server

⇐ sys.triggers - Listing All Triggers in the Database in SQL Server

⇑ Creating and Managing Triggers in SQL Server

⇑⇑ SQL Server Database Tutorials

2016-10-24, 2322🔥, 0💬

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Testing DML Triggers in SQL Server
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"CREATE TRIGGER" - Creating a DML Trigger in SQL Server
How To Create a DML Trigger using CREATE TRIGGER Statements in SQL Server? 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 followi... 2016-10-25, 2492🔥, 0💬

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Creating a Simple Table to Test Triggers in SQL Server
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