告警日志里这两天一直显示这个错误：
ORA-00600: internal error code, arguments: [kcblasm_1], [103], [], [], [], [], [], []
Tue Aug 12 09:20:17 CST 2014
Errors in file /u01/app/oracle/admin/orcl/udump/orcl_ora_29974.trc:
ORA-00600: internal error code, arguments: [kcblasm_1], [103], [], [], [], [], [], []
Tue Aug 12 09:30:17 CST 2014
Errors in file /u01/app/oracle/admin/orcl/udump/orcl_ora_30084.trc:
ORA-00600: internal error code, arguments: [kcblasm_1], [103], [], [], [], [], [], []
Tue Aug 12 09:40:17 CST 2014
Errors in file /u01/app/oracle/admin/orcl/udump/orcl_ora_29919.trc:
ORA-00600: internal error code, arguments: [kcblasm_1], [103], [], [], [], [], [], []
网上查的解决办法：
1:临时的解决方法
如果执行计划中是hash join造成的，在会话层中设置"_hash_join_enable"=false，如：alter session set "_hash_join_enabled" = false亦可;
如果执行计划是hash group by 造成的，设置"_gby_hash_aggregation_enabled"=false
2:根本的解决方法
2.1.优化sql语句，避免遇到bug；
2.2.升级
(1)将数据库升级psu到10.2.0.5.4和11.2可以修正该问题
(2)对于10.2.0.5.0到10.2.0.5.3的版本，打PATCH 7612454来避免改错误(该补丁替换lib中的kcbl.o文件)。
通过临时解决办法解决问题示例：
追踪报警日志里提示的trace文件，找到导致出现此错误的sql语句
ORA-00600: internal error code, arguments: [kcblasm_1], [103], [], [], [], [], [], []
Current SQL statement for this session:
格式化后的sql语句如下：
SELECT INDENTDATE,
INDENTGROUP,
TRANSDATE,
TRANSBY,
TRANSGROUP,
FEEDBACKBY,
FEEDBACKGROUP,
FINANCEDATE,
FINANCEBY,
FINANCEGROUP,
TOTALCOST,
A.TOTALPAY,
PAY_CASH,
PAY_POINTS,
PAY_ADVANCE1,
PAY_ADVANCE2,
PAY_TYPE,
TRANS_PAY,
DISCOUNT_STAFF,
DISCOUNT_SPECIAL,
GAIN_CASH,
GAIN_POINTS,
GAIN_ADVANCE1,
GAIN_ADVANCE2,
TRANS_CUSTNAME,
TRANS_TEL,
TRANS_PROVINCE,
TRANS_CITY,
TRANS_ADDRESS,
TRANS_ZIPCODE,
TRANS_WEIGHT,
TRANS_COMMENTS,
INDENT_COMMENTS,
INDENT_ID,
A.PARTNER_GUID,
A.PROXY_GUID,
TRANS_TEL2,
CUST_MEDIA_ID,
CUST_PARTNER_GUID,
CUST_PROXY_GUID,
PARTNER_VALUE,
PROXY_VALUE,
CUST_PARTNER_VALUE,
CUST_PROXY_VALUE,
DEALBY,
A.FAILREASON,
ISFOOT,
S_REASONID,
DEALFAILREASON,
A.PRE_FUND,
MEDIA_CALLTYPE,
PRE_ADVANCE,
WEB_FLAG,
NEED_INVOICE,
INVOICE_TITLE,
TRANS_AREA,
ORDERTYPE,
PAY_POINTSPRICE,
A.MEDIA,
USERDEFINEDSTATUS,
CUSTOMERNAME,
CUSTOMERID
FROM ELITE.TABCINDENT A
LEFT JOIN ELITE.OBJECTIVE B
ON A.RELATION_ID = B.OBJECTIVE_GUID
LEFT JOIN ELITE.CUSTOMER C
ON A.CUSTOMER_GUID = C.CUSTOMER_GUID
WHERE (INDENTDATE BETWEEN :1 AND :2 OR B.MODIFIEDDATE BETWEEN :3 AND :4);
将变量:1,:2,:3,:4替换成具体的值执行：
SELECT INDENTDATE,
INDENTGROUP,
TRANSDATE,
TRANSBY,
TRANSGROUP,
FEEDBACKBY,
FEEDBACKGROUP,
FINANCEDATE,
FINANCEBY,
FINANCEGROUP,
TOTALCOST,
A.TOTALPAY,
PAY_CASH,
PAY_POINTS,
PAY_ADVANCE1,
PAY_ADVANCE2,
PAY_TYPE,
TRANS_PAY,
DISCOUNT_STAFF,
DISCOUNT_SPECIAL,
GAIN_CASH,
GAIN_POINTS,
GAIN_ADVANCE1,
GAIN_ADVANCE2,
TRANS_CUSTNAME,
TRANS_TEL,
TRANS_PROVINCE,
TRANS_CITY,
TRANS_ADDRESS,
TRANS_ZIPCODE,
TRANS_WEIGHT,
TRANS_COMMENTS,
INDENT_COMMENTS,
INDENT_ID,
A.PARTNER_GUID,
A.PROXY_GUID,
TRANS_TEL2,
CUST_MEDIA_ID,
CUST_PARTNER_GUID,
CUST_PROXY_GUID,
PARTNER_VALUE,
PROXY_VALUE,
CUST_PARTNER_VALUE,
CUST_PROXY_VALUE,
DEALBY,
A.FAILREASON,
ISFOOT,
S_REASONID,
DEALFAILREASON,
A.PRE_FUND,
MEDIA_CALLTYPE,
PRE_ADVANCE,
WEB_FLAG,
NEED_INVOICE,
INVOICE_TITLE,
TRANS_AREA,
ORDERTYPE,
PAY_POINTSPRICE,
A.MEDIA,
USERDEFINEDSTATUS,
CUSTOMERNAME,
CUSTOMERID
FROM ELITE.TABCINDENT A
LEFT JOIN ELITE.OBJECTIVE B
ON A.RELATION_ID = B.OBJECTIVE_GUID
LEFT JOIN ELITE.CUSTOMER C
ON A.CUSTOMER_GUID = C.CUSTOMER_GUID
WHERE (INDENTDATE BETWEEN '2012-06-19' AND '2012-08-19' OR B.MODIFIEDDATE BETWEEN '2012-06-19' AND '2012-08-1');
执行报错：
解决办法：
alter session set "_hash_join_enabled"=false;
alter session set "_gby_hash_aggregation_enabled"=false
--先尝试一种，如果一种解决了，就没必要设置另外一种了。
然后再次执行上面的查询语句，不报错啦，嘎嘎
成功啦，(*^__^*) 嘻嘻……
让开发人员在程序里加上这条命令即可。