ORA-01428: argument '0' is out of range

Question

Hi,
in 10g R2 , I created (code found in David Kurtz article) a function as follows but when use it I receive an error :
SQL> CREATE OR REPLACE FUNCTION h2i (p_hash_value NUMBER) RETURN VARCHAR2 IS
  2  l_output VARCHAR2(10) := '';
  3  BEGIN
  4  FOR i IN (
  5  SELECT substr('0123456789abcdfghjkmnpqrstuvwxyz',1+floor(mod(p_hash_value/(POWER(32,LEVEL-1)),32)),1) sqlidchar
  6  FROM dual CONNECT BY LEVEL <= LN(p_hash_value)/LN(32) ORDER BY LEVEL DESC
  7  ) LOOP
  8  l_output := l_output || i.sqlidchar;
  9  END LOOP;
10  RETURN l_output;
11  END;
12  /
Function created.
SQL> select SQL_PLAN_HASH_VALUE, sql_id ,h2i(SQL_PLAN_HASH_VALUE) from v$active_session_history;
select SQL_PLAN_HASH_VALUE, sql_id ,h2i(SQL_PLAN_HASH_VALUE) from v$active_session_history
ERROR at line 1:
ORA-01428: argument '0' is out of range
ORA-06512: at "SYS.H2I", line 4ANy idea ? Any help ,
Thank you.

Answer 1

Thaks Michael,
SELECT sql_id, dbms_utility.sqlid_to_sqlhash (sql_id) hash,
       sql_plan_hash_value
  FROM v$active_session_history
WHERE sql_plan_hash_value != 0
SQL_ID              HASH SQL_PLAN_HASH_VALUE
g1p4md32k85mv 3307476603           149324150
bwhzpth8a3zgv  279051771          2848324471
bwhzpth8a3zgv  279051771          2848324471
0zcud3g9fky57 3538516135          2890534904
0zcud3g9fky57 3538516135          2890534904
0zcud3g9fky57 3538516135          2890534904
08bqjmf8490s2 2420409090          2890534904
4gd6b1r53yt88 3393152264          2675018582
4gd6b1r53yt88 3393152264          2675018582
26xbn5mhmjqn9 3778599561           381738983
4gd6b1r53yt88 3393152264          2675018582Then can I conclude that h2i function is wrong and it would be better to use original oracle dbms_utility.sqlid_to_sqlhash ?