If you want to know how to handle database errors with FIBPlus, read a new article in FIBPlus technology section . The article "FIBPlus: handling database errors" tells about:
Preparation for error handling
TpFIBErrorHandler properties and features
Handling exceptions
and demonstrates Delphi and C++ Builder code samples.
Coming from a Java/OO background, it has been a real pleasure working with FIBPlus in Delphi. I'm very picky about good code design, and FIBPlus has it in spades! >>