You can choose to generate a user-defined error message from the trigger generation parameters box.
The Rebuild Triggers dialog box is displayed.
Below is an example of the details for a table called ERR_MSG.
For more information on rebuilding triggers, see section Rebuilding Triggers.
The trigger rebuilding process is shown in the Output window.
Select Database > Generate Database to open the Database Generation window.
For information on selecting trigger generation parameters, see section Generating Triggers and Procedures.