Which type of trigger should a database administrator use to save a copy of a record in the 'DeletedProducts' table when deleting from the 'Products' table?

Which type of trigger should a database administrator use to save a copy of a record in the 'DeletedProducts' table when deleting from the 'Products' table?

• A. AFTER DELETE
• B. BEFORE DELETE
• C. INSTEAD OF DELETE
• D. COMMIT DELETE

Answer: (B)

To capture a record in the 'DeletedProducts' table when a deletion occurs in the 'Products' table, the correct type of trigger to use is the AFTER DELETE trigger. An AFTER DELETE trigger executes after a delete operation has been performed on a table. This timing is crucial because it allows the trigger to access the deleted data from the row that is being removed. Within the trigger, the data from the deleted record can be referenced and inserted into another table—in this case, the 'DeletedProducts' table for archiving purposes. This trigger type ensures that any actions needed based on the deleted data are performed after the deletion occurs, maintaining data integrity and allowing for proper logging of deletions. The BEFORE DELETE trigger is executed prior to the deletion of a record, which would not work for this particular use case because, at that moment, the record still exists in the 'Products' table, and the deletion has not yet occurred. An INSTEAD OF DELETE trigger can be applicable for views rather than standard table operations and would not specifically suit the requirement of logging deletions in separate tables directly. The COMMIT DELETE option does not exist in standard SQL trigger terminology; commits are usually statements that finalize transactions and are not a type of trigger. Thus

To capture a record in the 'DeletedProducts' table when a deletion occurs in the 'Products' table, the correct type of trigger to use is the AFTER DELETE trigger.

An AFTER DELETE trigger executes after a delete operation has been performed on a table. This timing is crucial because it allows the trigger to access the deleted data from the row that is being removed. Within the trigger, the data from the deleted record can be referenced and inserted into another table—in this case, the 'DeletedProducts' table for archiving purposes. This trigger type ensures that any actions needed based on the deleted data are performed after the deletion occurs, maintaining data integrity and allowing for proper logging of deletions.

The BEFORE DELETE trigger is executed prior to the deletion of a record, which would not work for this particular use case because, at that moment, the record still exists in the 'Products' table, and the deletion has not yet occurred. An INSTEAD OF DELETE trigger can be applicable for views rather than standard table operations and would not specifically suit the requirement of logging deletions in separate tables directly. The COMMIT DELETE option does not exist in standard SQL trigger terminology; commits are usually statements that finalize transactions and are not a type of trigger.

Thus