Best practices for SQL error handling?

Hi all, are there any best practices for generic SQL error handling like how to test if a SELECT returned any values at all? I have noticed that different DBD drivers seem to produce different return values on selects - DBD-Oracle returns 0E0 if successful, DBD-CSV returns 0E0 if no row selected

DBD-Oracle: Memory fault in dbd_phs_out

Hi all, I have compiled DBD-Oracle on HP-UX 11.11 with Oracle 8.1.7.0.0. The DBI version is 1.48, DBD-Oracle is 1.16 and Perl is ActiveState Perl for HP-UX v5.6.1. The module runs fine on the build system. I have created a ppm Package and installed it on the production system. If I use a test