Trigger Syntax

To define a trigger, use the following syntax:
trigger TriggerName on ObjectName (trigger_events) {
   code_block
}
where trigger_events can be a comma-separated list of one or more of the following events:
  • before insert
  • before update
  • before delete
  • after insert
  • after update
  • after delete
  • after undelete
Note

Note

A trigger invoked by an insert, delete, or update of a recurring event or recurring task results in a runtime error when the trigger is called in bulk from the Force.comAPI.

For example, the following code defines a trigger for the before insert and before update events on the Account object:

trigger myAccountTrigger on Account (before insert, before update) {
    // Your code here
}

The code block of a trigger cannot contain the static keyword. Triggers can only contain keywords applicable to an inner class. In addition, you do not have to manually commit any database changes made by a trigger. If your Apex trigger completes successfully, any database changes are automatically committed. If your Apex trigger does not complete successfully, any changes made to the database are rolled back.

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