Emacs中的网络工具封装命令

今日在Oracle控制台中看到预警中有"

意外事件

一般内部错误

. 查看日志中显示问题:
ORA-00600: internal error code, arguments: [kkqcscpopn_Int: 0], [], [], [], [], [], [], [], [], [], [], []

在Trc中也没发现具体问题.将问题发给DBA的朋友看了之后. 他在MOS中看到类似的记录.
 
NB Bug Fixed Description
11810296 11.2.0.3, 12.1.0.0 ORA-600 [kkqcscpopn_Int: 0] with subquery unnesting and view merging
11661678 11.2.0.3, 12.1.0.0 ORA-600 [kkqcscpopn_Int: 0] / dump from query with function based index
10242303 11.2.0.2.BP15, 11.2.0.3, 12.1.0.0 Internal errors from query with ANSI join and many columns
10184115 11.2.0.2.BP15, 11.2.0.3, 12.1.0.0 Wrong Results, Assorted Internal Errors and Dumps with ANSI join of tables with large number of columns
9324531 11.2.0.1.BP04, 11.2.0.2, 12.1.0.0 ORA-600 [kkqcscpopn_Int: 0] from ANSI query
8537544 11.2.0.2, 12.1.0.0 Excess memory use / ORA-600 / dumps parsing SQL with many nested outer joins / ANSI joins
8337618 11.2.0.1 ORA-600 [kkqcscpopn_int: 0] using complex views and GROUP BY

Description

Cost based query transformation involving combined unnest subquery and 
view merging could cause ORA-600[kkqcscpopn_Int: 0]

Rediscovery Notes:
If kkqctPrepQuerySQUN() is in stack there is a chance of this bug 

Workaround
Prevent Subquery Unnesting or complex view merging.
eg: Disable cost based query transformations by setting
alter system set "_optimizer_cost_based_transformation"=off
 
转载自：http://blog.csdn.net/zzvnzz/article/details/7728329