¿Cuál es la ventaja de usar un disparador después de la inserción sobre un disparador antes de la inserción?

What is the advantage of using an after insert trigger over using a before insert trigger?

What is a benefit of using an after insert trigger over using a before insert trigger? A . An after insert trigger allows a developer to bypass validation rules when updating fields on the new record.

Action Query: In the “After Trigger” the table data is affected after the execution of the action query whereas the table data isn’t affected after the execution of an action query in an “Instead of Trigger”. …

The before insert tells that this trigger will run before insert of a record. We can add more events by separating them with comma. The trigger. new provides the records that are about to be inserted, or updated.

Because a trigger resides in the database and anyone who has the required privilege can use it, a trigger lets you write a set of SQL statements that multiple applications can use. It lets you avoid redundant code when multiple programs need to perform the same database operation.

The system saves the records that fired the before trigger after the trigger finishes execution. You can modify the records in the trigger without explicitly calling a DML insert or update operation. If you perform DML statements on those records, you get an error.

If you need to make any changes to a record entering your after trigger, you have to do a DML statement. This isn’t necessary in a before trigger – changes to records entering your trigger always save! Moral of the story – before triggers are kings of the jungle!

INSTEAD OF triggers provide a transparent way of modifying views that cannot be modified directly through DML statements ( INSERT , UPDATE , and DELETE ). These triggers are called INSTEAD OF triggers because, unlike other types of triggers, Oracle fires the trigger instead of executing the triggering statement.

Before triggers: used to update or validate record values before they’re saved to the database. After triggers: used to access field values that are set by the system (such as a record’s Id or LastModifiedDate field) and to effect changes in other records. The records that fire the after the trigger is read-only.

You can use an object to change its own field values using trigger. new, but only in before triggers. In all after triggers, trigger. new is not saved, so a runtime exception is thrown.

Triggers can cause performance issues if not written carefully and not enough developers are knowledgeable enough to write them well. Triggers are often slower than other means of maintaining data integrity, so if you can use a check constraint, use that instead of a trigger.

A trigger fires inside the transaction that modifies the data in the table. The triggers of this type will not slow down operations, however, will ensure data coupling and integrity.

To execute trigger on a case like before insert, after insert, before update, after update, before delete, after delete, after undelete, we must specify trigger events in a comma separated list as shown above….Different Triggers in Salesforce.