今天朋友执行一条如下sql

SELECT YF,
       KHBH,
       MAX(KHXM),
       MAX(YYBDM),
       MAX(YYBMC),
       MIN(ZJZH),
       SUM(CASE
             WHEN RQ = 20120321 THEN
              NVL(ZJYE, 0)
             ELSE
              0
           END),
       SUM(CASE
             WHEN RQ = 20120301 THEN
              NVL(ZJYE, 0)
             ELSE
              0
           END),
       SUM(CASE
             WHEN RQ = 20120321 THEN
              NVL(ZQSZ, 0)
             ELSE
              0
           END),
       SUM(CASE
             WHEN RQ = 20120301 THEN
              NVL(ZQSZ, 0)
             ELSE
              0
           END),
       SUM(CASE
             WHEN RQ = 20120321 THEN
              NVL(ZC, 0)
             ELSE
              0
           END),
       SUM(CASE
             WHEN RQ = 20120301 THEN
              NVL(ZC, 0)
             ELSE
              0
           END),
       SUM(CASE
             WHEN RQ = 20120321 THEN
              NVL(DWJZ, 1)
             ELSE
              0
           END),
       SUM(CASE
             WHEN RQ = 20120301 THEN
              NVL(DWJZ, 1)
             ELSE
              0
           END),
       MAX(NVL(ZC, 0)) ZGZC,
       SUM(NVL(ZRZC, 0)) ZRZC,
       SUM(NVL(ZCZC, 0)) ZCZC,
       SUM(NVL(FDYK, 0)) FDYK,
       SUM(NVL(ZRGF, 0)) ZRGF,
       SUM(NVL(ZCGF, 0)) ZCGF,
       AVG(NVL(ZC, 0)) PJZC,
       SUM(NVL(CJJE, 0)) CJJE,
       SUM(NVL(YJ, 0)) YJ,
       SUM(NVL(ZJFSS, 0)) ZJFSS,
       SUM(NVL(ZYJ, 0)) ZYJ,
       SUM(NVL(CJCS, 0)) CJCS
  FROM CRM_FX2_KHZJHZ P
 WHERE YF = 201203
 GROUP BY YF, KHBH;

出现ORA-00600: internal error code, arguments: [kcblasm_1], [103], [], [], [], [], []错误

数据库版本

Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bi
PL/SQL Release 10.2.0.5.0 - Production
CORE 10.2.0.5.0 Production
TNS for Linux: Version 10.2.0.5.0 - Production
NLSRTL Version 10.2.0.5.0 - Production

通过MOS发现该错误在10.2.0.5上有相关描述

This problem is hit only in 10.2.0.5, up to PSU 10.2.0.5.4 in which problem is fixed.
Problem is affecting 10.2.0.5 to 10.2.0.5.3.
Cause
This is is a known and common problem hit in 10.2.0.5, investigated and corrected in unpublished Bug 7612454.
The problem was introduced in 10.2.0.5, by the fix of Bug:7523755.
This has been corrected in PSU 10.2.0.5.4 and 11.2.

解决方法

To quickest way to the solution of this problem is to apply PSU 10.2.0.5.4, Patch 12419392 or later.
All alternative solutions for this problem are listed below:
•	Upgrade the database to 11.2.
OR
•	Apply 10.2.0.5.4 Patch Set Update (Patch 12419392) or later PSUs where bug is fixed.
The available PSUs are mentioned in "10.2.0.5 Patch Set Updates - List of Fixes in each PSU" (Document 1337394.1)
OR
•	Apply interim Patch 7612454 on top of 10.2.0.5 (10.2.0.5.0-10.2.0.5.3):
o	For UNIX / Linux platforms apply Patch 7612454 available for download on MOS.
o	For Windows platforms apply Patch 3 or higher.
Please check Document 342443.1 for latest patches available for Windows on top of 10.2.0.5.

这个错误在10.2.0.5上很容易发生，官方也没有给出发生这个错误的原因，以及如何改写相关sql，给出的方案是升级到10.2.0.5.4或者更高。这里可以看出升级需要慎重，可能导致原库有小部分sql不能正常执行。