Force Index and Group By Exception

Question

Hello,
I'm using Oracle 8 and PL/SQL Developer 7 and when i want to perform this query :
select
/*+ INDEX(gprs_cdr IK_GPRS_CDR_CREAT_DTE) */ trunc(creation_date, 'D')
from
gprs_cdr
where
creation_date between to_date('26/01/2006', 'DD/MM/YYYY') and to_date('30/06/2006', 'DD/MM/YYYY')
group by trunc(creation_date, 'D')
I have the Exception : ORA-00979 : not a GROUP BY expression
Do you have a solution for this please ?
Thanks
Message was edited by:
user511447

Answer 1

Hi,
Index hint will not be a problem for the error. for me its working fine.
SQL>SELECT /*+ INDEX(EMP,xyz) */ TRUNC(hiredate,'D')
  2  FROM emp
  3  GROUP BY TRUNC(hiredate,'D');
TRUNC(HIR
14-DEC-80
15-FEB-81
22-FEB-81
29-MAR-81
26-APR-81
07-JUN-81
06-SEP-81
27-SEP-81
15-NOV-81
29-NOV-81
19-APR-87
TRUNC(HIR
17-MAY-87
30-JAN-05
29-JAN-06
15 rows selected.
SQL>SELECT * FROM v$version;
BANNER
Oracle9i Enterprise Edition Release 9.2.0.6.0 - 64bit Production
PL/SQL Release 9.2.0.6.0 - Production
CORE    9.2.0.6.0       Production
TNS for Solaris: Version 9.2.0.6.0 - Production
NLSRTL Version 9.2.0.6.0 - Production
5 rows selected.Check your query or paste the entire query one again.
Regards