Here is the normal stored procedure we used to test.
CREATE OR REPLACE 
PACKAGE vern_pkg IS
   PROCEDURE pop (p_table_name IN VARCHAR2,
                  p_text_value IN vern_test.text_value%TYPE,
                  p_num_value IN vern_test.num_value%TYPE DEFAULT null,
                  p_dt IN vern_test.dt%TYPE DEFAULT SYSDATE);
 
   PROCEDURE get_sysdate(P_DT IN OUT VERN_TEST.DT%TYPE);
END;                                                                                         -- Package spec
/
 
 
CREATE OR REPLACE 
PACKAGE BODY vern_pkg IS
   PROCEDURE pop (p_table_name IN VARCHAR2,
                  p_text_value IN vern_test.text_value%TYPE,
                  p_num_value IN vern_test.num_value%TYPE DEFAULT NULL,
                  p_dt IN vern_test.dt%TYPE DEFAULT SYSDATE) IS
      v_sql VARCHAR2 (4000);
   BEGIN
      v_sql :=
            'INSERT INTO '
         || p_table_name
         || ' VALUES ('''
         || p_text_value
         || ''', '
         || p_num_value
         || ', TO_DATE('''
         || p_dt
         || ''',''DD-MON-YYYY''))';
 
      EXECUTE IMMEDIATE v_sql;
 
      COMMIT;
   EXCEPTION
      WHEN OTHERS THEN
         ROLLBACK;
         DBMS_OUTPUT.put_line (SQLERRM);
   END;
 
   PROCEDURE get_sysdate (p_dt IN OUT vern_test.dt%TYPE) IS
   BEGIN
      p_dt :=  SYSDATE;
   END;
END;
/
Here we pass correct info and get a success using sqlplus:
SQL> EXEC VERN_PKG.pop ('VERN_TEST', 'BOGUS', 12345, '01-JAN-2010');
 
PL/SQL procedure successfully completed.
Here we pass the incorrect table name 'XVERN_TEST' via sqlplus:
SQL> EXEC VERN_PKG.pop ('XVERN_TEST', 'BOGUS', 12345, '01-JAN-2010');
ORA-00942: table or view does not exist                                         
PL/SQL procedure successfully completed.
When running this stored procedure from VC, is there any way to capture the ORA error generated?
BTW, this is mostly greek to me and I rely heavily on my DBA to provide this info so I might be using incorrect terminology.