BEFORE Trigger


A BEFORE trigger executes before a data modification occurs.

It runs before INSERT, UPDATE, or DELETE operations.

This allows validation before data is saved.

BEFORE triggers are commonly used for validation.

They can prevent invalid data from being inserted.

This improves data integrity.

BEFORE triggers can modify data values.

They run before the actual database operation.

This allows correction of values.

If trigger condition fails, the database operation can be stopped.

This ensures business rules are enforced.

BEFORE triggers are useful for validation and correction.

They help maintain clean data.

They are commonly used in enterprise systems.