How do I make an after delete trigger?

How do I make an after delete trigger?

Introduction to MySQL AFTER DELETE triggers First, specify the name of the trigger that you want to create in the CREATE TRIGGER clause. Second, use AFTER DELETE clause to specify the time to invoke the trigger. Third, specify the name of the table, which the trigger is associated with, after the ON keyword.

What does on delete trigger do?

Description. An AFTER DELETE Trigger means that MySQL will fire this trigger after the DELETE operation is executed.

Can we delete a trigger in SQL?

Using SQL Server Management Studio Expand the database that you want, expand Tables, and then expand the table that contains the trigger that you want to delete. Expand Triggers, right-click the trigger to delete, and then click Delete. In the Delete Object dialog box, verify the trigger to delete, and then click OK.

How do you end a trigger in SQL?

To destroy a Trigger, use the DROP TRIGGER statement. To change an existing Trigger, drop and then redefine it.

How do you create a trigger after insert?

First, specify the name of the trigger that you want to create after the CREATE TRIGGER keywords. Second, use AFTER INSERT clause to specify the time to invoke the trigger. Third, specify the name of the table on which you want to create the trigger after the ON keyword.

How do I create a trigger after insert in SQL Server?

SQL Server trigger after insert example

1. You can expand the table on which you want to create the trigger. You will see the Triggers option when you will expand the table.
2. Right click on Triggers and click New Trigger to create a new trigger.
3. It will create a template for the trigger.

What is the difference between before and after trigger?

Before Trigger is a type of trigger that automatically executes before a certain operation occurs on the table. In contrast, after trigger is a type of trigger that automatically executes after a certain operation occurs on the table.

How do you show triggers?

SHOW TRIGGERS output has these columns:

1. Trigger. The name of the trigger.
2. Event. The trigger event.
3. Table. The table for which the trigger is defined.
4. Statement. The trigger body; that is, the statement executed when the trigger activates.
5. Timing.
6. Created.
7. sql_mode.
8. Definer.

Can we remove trigger if yes how?

You can remove a DML trigger by dropping it or by dropping the trigger table. When a table is dropped, all associated triggers are also dropped.

Which of the following is used to delete a trigger?

the DROP TRIGGER statement
Which statement is used to remove a trigger? Explanation: In order to delete a trigger, the DROP TRIGGER statement is used. The DROP TRIGGER construct is used by writing the phrase ‘DROP TRIGGER’ followed by the scheme name specification.

What command is used to removing trigger?

4. Which statement is used to remove a trigger? Explanation: In order to delete a trigger, the DROP TRIGGER statement is used.

Which command is for removing the trigger?

RMVPFTRG
You can remove triggers using the Remove Physical File Trigger (RMVPFTRG) command, the SQL DROP TRIGGER statement, or System i® Navigator. Use the RMVPFTRG command to remove the association of a file and the trigger program.