Triggers are automatically executed in response to certain events on a particular table. These are used to maintain the integrity of the data. A trigger in SQL codes that are SQL works similar to a ...

A trigger in PL/SQL is a stored program that automatically executes when a specific event occurs in the database. 🔹 DML Triggers – Fired on INSERT, UPDATE, DELETE. 🔹 DDL Triggers – Fired on CREATE, ...

select @account_id=account_id, @amount=amount from inserted; --inserted is a system table which will have last inserted data ...

-- 1. 'patient_details': Provides details of patients including age calculated from date of birth. -- 2. 'room_occupancy': Displays the occupancy status of rooms and whether they are currently ...