I'm learning about the use of triggers. If the program trigger is canceled, how can I send a message to the application user program that has invoked the trigger?
An external trigger must send an escape message to notify the invoking application that an error has occurred. SQL triggers need to use the SIGNAL statement to send an exception back to the application. You can find coding examples of each in the "Triggers & Stored Procedures on DB2 UDB for iSeries" Redbook here.
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