The scope of exceptions.
SQL> SQL> BEGIN 2 DECLARE 3 myException EXCEPTION; 4 BEGIN 5 RAISE myException; 6 END; 7 EXCEPTION 8 WHEN OTHERS THEN 9 RAISE; 10 END; 11 / BEGIN * ERROR at line 1: ORA-06510: PL/SQL: unhandled user-defined exception ORA-06512: at line 9 SQL>