oracle and stored procedure error

Hi, We are trying to use oracle as a backend but we are having problems. For example here is my radiusd -X output: [sql] expand: EXEC ra_authentication_check '%{SQL-User-Name}', '%{User-Password}' -> EXEC ra_authentication_check '8008', '1111' rlm_sql_oracle: query failed in sql_select_query: ORA-24333: zero iteration count

From sqlplus I can run EXEC ra_authentication_check '8008', '1111' without error on the same machine and with the same user defined in sql.conf but when radiusd runs that query I get

ORA-24333: zero iteration count error. If some one here in this list have an idea about that and kindly share his/her opinion about this I will really appreciate that. Regards.