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How to define a trigger for an object?
You can define triggers for top-level standard objects that support triggers, such as a Contact or an Account, some standard child objects, such as a CaseComment, and custom objects. To define a trigger, from the object management settings for the object whose triggers you want to access, go to Triggers.
What kind of triggers are stored in the database?
A trigger stored in the database can include SQL and PL/SQL or Java statements to run as a unit and can invoke stored procedures. However, procedures and triggers differ in the way that they are invoked.
Why do we use triggers instead of triggers in Oracle?
These triggers are called INSTEAD OF triggers because, unlike other types of triggers, Oracle fires the trigger instead of executing the triggering statement. You can write normal INSERT, UPDATE, and DELETE statements against the view and the INSTEAD OF trigger is fired to update the underlying tables appropriately.
What is the purpose of the after trigger?
After triggers are used to access field values that are set by the system (such as a record’s Id or LastModifiedDate field), and to affect changes in other records, such as logging into an audit table or firing asynchronous events with a queue. The records that fire the after trigger are read-only.
Do you need a unique name for a trigger?
Trigger names do not need to be unique with respect to other schema objects, such as tables, views, and procedures. For example, a table and a trigger can have the same name (however, to avoid confusion, this is not recommended). When Is the Trigger Fired?
How to trigger the parent event in JavaScript?
You can use the method event.isPropagationStopped () to know whether this method was ever called (on that event object). Click event Bubbles, now what is meant by bubbling, a good point to starts is here. you can use event.stopPropagation (), if you don’t want that event should propagate further.
When to use trigger in insertor deletetriggering statement?
If a triggering statement includes a column list, the trigger is fired only when one of the specified columns is updated. If a triggering statement omits a column list, the trigger is fired when any column of the associated table is updated. A column list cannot be specified for INSERTor DELETEtriggering statements.