ORA-06502：PL/SQL：数値または値のエラー：番号変換エラーに文字

Question

create or replace procedure summery_report_date_range (start_date in varchar2 , end_date in varchar2 ) 

is 

cursor cursor_audit is SELECT audit_action, COUNT(audit_action), audit_user, audit_date , 

TABLE_NAME 
    FROM (
     select audit_action, audit_user, audit_date, 'store_audit' TABLE_NAME 
      from stores_audit 


     UNION ALL 
     select audit_action, audit_user, audit_date, 'customer_audit' TABLE_NAME 
      from customer_audit 


    UNION ALL 
     select audit_action, audit_user, audit_date, 'category_audit' TABLE_NAME 
      from category_audit 



    UNION ALL 
     select audit_action, audit_user, audit_date, 'orders_audit' TABLE_NAME 
      from orders_audit 

     )"MYTBL" 
      where (audit_date between TO_DATE(start_date, 'DD-MON-YY') and TO_DATE(end_date, 'DD-MON-YY') ) 
     GROUP BY audit_action, audit_user, audit_date, TABLE_NAME 
     ORDER BY audit_user;  

rec_user stores_audit.audit_user%TYPE; 

rec_total number; 

rec_action stores_audit.audit_action%TYPE; 

rec_date stores_audit.audit_date%TYPE; 

rec_id  stores_audit.audit_id%TYPE; 


begin 

open cursor_audit; 

fetch cursor_audit into rec_action, rec_total,rec_user,rec_date,rec_id ; 

while cursor_audit%found 

loop 

    dbms_output.put_line('User : '||rec_user ||', Action : ' || 
        rec_action ||', Date From: ' ||start_date ||' To ' || END_DATE || ' Total Action : ' || rec_total); 

    fetch cursor_audit into rec_action, rec_total, rec_user,rec_date,rec_id ; 

end loop; 

close cursor_audit; 

EXCEPTION 
    WHEN NO_DATA_FOUND THEN 
    DBMS_OUTPUT.PUT_LINE('Data Not Found.'); 

    WHEN INVALID_CURSOR THEN 
    DBMS_OUTPUT.PUT_LINE('INVALID_CURSOR.'); 

    WHEN OTHERS THEN 
    DBMS_OUTPUT.PUT_LINE(SQLERRM || ' ' ||SQLCODE); 

    end; 

/

execute summery_report_date_range('01-DEC-10' , '31-DEC-10'); 

私は、正確なエラー

Answer 1

はのデータ型は何です知らないこの手順をexcuteときに、このエラーを取得IAM stores_audit.audit_id？その名前は数値であることを示唆していますが、文字列を取り込んでいます。