Category: Trigger

In this section, we are going to understand the working of the Enable trigger using the ALTER TABLE command and see the example of it. What is PostgreSQL ENABLE TRIGGER command? If we want to enable a trigger, we will use the ENABLE TRIGGER command with the ALTER TABLE command. The Syntax of PostgreSQL Enable Trigger using ALTER TRIGGER command The syntax PostgreSQL Enable…

In this section, we are going to understand the working of the Disable triggers using the ALTER TABLE command and see an example of it. What is PostgreSQL DISABLE TRIGGER command? If we want to disable a trigger, we will use the DISABLE TRIGGER command with the ALTER TABLE command. The Syntax of PostgreSQL Disable Trigger using ALTER TRIGGER command The syntax PostgreSQL Disable…

In this section, we are going to understand the working of the PostgreSQL ALTER TRIGGER command and see the example of altering a trigger or rename a trigger from a specified table in PostgreSQL. What is PostgreSQL ALTER TRIGGER command? In PostgreSQL Trigger, the next command is the Alter Trigger command, which is used to rename the existing trigger. The syntax of…

In this section, we are going to understand the working of the PostgreSQL DROP TRIGGER command and see the example of dropping and deleting a trigger from a specified table in PostgreSQL. What is PostgreSQL Drop Trigger command? In PostgreSQL, we can use the Drop Trigger command to remove the existing trigger. The syntax of the PostgreSQL Drop trigger command The following…

In this section, we are going to understand the working of the Trigger function, the creation of trigger function, PostgreSQL Create Trigger, and the examples of the Create Trigger command. What is the Trigger function? A trigger function is parallel to the consistent user-defined function. But a trigger function can return a value with the type trigger and does not take…

In this section, we are going to understand the working of the PostgreSQL Triggers, why we need to use the triggers and when to use them and also see the merits and demerits of PostgreSQL triggers, features of PostgreSQL Triggers and various command, which are performed under the PostgreSQL Trigger section. What are PostgreSQL Triggers? A trigger is a special user-defined function connected…