Online Documentation for SQL Manager for InterBase/Firebird
Creating/editing exception
Use the Exception tab of Exception Editor to view and edit the exception definition.
Name
Enter a name for the new exception, or modify the name of the exception being edited. Note that exception name must be unique among exception names in the database.
Text
Text of the message displayed when the exception is raised. The maximum allowed string length is 78 characters.
To compile an exception, you can use the Compile item available within the Navigation bar or toolbar.