Triggers are divided into 2 types
Before Triggers
After Triggers
Before Triggers: Before Triggers can be used to update or validate values of a record before they are saved to the database.
After Triggers: After Triggers Before Triggers can be used to access field values of the records that are stored in the database and use this value to make changes in other records.
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Syntax:
1
Trigger trigger_name on Object_Name(trigger_events) { Code_block } WHERE trigger_events can be comma separated list of events.