Exactly When Are Triggers Invoked?
The TRIG_OPER and TRIG_RETC Variables and TRIG_LIST Working List
What Codes Are Passed in TRIG_OPER to the Trigger?
How Many Entries Are Passed in the TRIG_LIST?
What Return Codes Are Used in TRIG_RETC and How Can They Be Set?
Examples of how Triggers Might be Used