Oracle best practices

How to Fix “ORA-06502: PL/SQL: Numeric or Value Error” in Oracle APEX – Causes, Real-World Solutions, and Pro Tips

By HassanPosted on July 30, 2025Posted in DevelopmentTagged APEX application error, APEX code examples, APEX debugging, APEX PL/SQL, APEX validation, character to number conversion error, database errors, database troubleshooting, numeric or value error, ORA-06502, Oracle APEX, Oracle APEX Development, Oracle APEX guide, Oracle APEX solutions, Oracle APEX tips, Oracle best practices, Oracle database, Oracle development, Oracle error fix, Oracle error handling, Oracle errors, Oracle PL/SQL, Oracle troubleshooting, PL/SQL error, SQL errorsNo Comments

Introduction Have you ever deployed a new page or PL/SQL process in Oracle APEX, only to be greeted by the dreaded “ORA-06502: PL/SQL: numeric or value error: character to number conversion error”? You’re not alone. This error is one of the most frequently encountered problems for both beginners and advanced Oracle APEX developers. Not only […]