How to use if updating on nested column in triggers

DML triggers execute when a user tries to modify data through a data manipulation language (DML) event.

DML events are INSERT, UPDATE, or DELETE statements on a table or view.

1) Create the 'product' table and 'product_price_history' table Once the above update query is executed, the trigger fires and updates the 'product_price_history' table.

4)If you ROLLBACK the transaction before committing to the database, the data inserted to the table is also rolled back.

These events primarily correspond to Transact-SQL CREATE, ALTER, and DROP statements, and certain system stored procedures that perform DDL-like operations.

Logon triggers fire in response to the LOGON event that is raised when a user sessions is being established.

Triggers can be created directly from Transact-SQL statements or from methods of assemblies that are created in the Microsoft .

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' When Inserting'); ELSIF UPDATING THEN dbms_output.put_line(v Msg