数据库报错，看了一下alertlog，主要重复如下内容：
Wed Jul 25 17:47:18 2012
Errors in file /oracle/admin/etldb/udump/etldb_ora_15674.trc:
ORA-07445: exception encountered: core dump [kghssgdmp()+273] [SIGFPE] [Integerdivide by zero] [0x40000000094555E1] [] []
ORA-07445: exception encountered: core dump[kghssgdmp()+273] [SIGFPE] [Integer divide by zero] [0x40000000094555E1] [] []
ORA-00600: internal error code, arguments:[32695], [hash aggregation can't be done], [], [], [], [], [], []
--数据库版本：
SQL> select * from v$version;
BANNER
----------------------------------------------------------------
PL/SQL Release 10.2.0.4.0 - Production
CORE 10.2.0.4.0 Production
TNS for HPUX: Version 10.2.0.4.0 -Production
NLSRTL Version 10.2.0.4.0 - Production
--查看/oracle/admin/etldb/udump/etldb_ora_15674.trc文件：
ORA-00600: internal error code, arguments:[32695], [hash aggregation can't be done], [], [], [], [], [], []
Current SQL statement for this session:
INSERT /*+ APPEND */ INTO DMID.TMP_MD_PAR_CON_4_M7 NOLOGGING
(
…
)
SELECT
…
FROM DMID.TMP_MD_PAR_CON_4_M8 T2
GROUP BY T2.DEAL_DATE,T2.BILLCYCL_ID
,T2.SCATT_ACCT
,T2.CONTRACT_NO
----- PL/SQL Call Stack -----
object line object
handle number name
c0000003ce3b5618 1062 procedure DMID.P_MD_PAR_CON_4_M
c000000322524998 1 anonymous block
….