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2010-05-31

ORA-00600 [KCBZPB_1], [59033077], [4], [1], [] example

below is the 600 entry in the alertlog: alert.log: Hex dump of Absolute File 14, Block 312821 in trace file /u01/ORAHOME/app/oracle/admin/TIGERS7/bdump/tigers7_dbw0_10999.trc *** Corrupt block relativ...
#POST 16 MIN READ
2010-05-31

关于参数log_file_name_convert

Oracle文档对于该参数的描述十分容易产生歧义:converts the filename of a new log file on the primary database to the filename of a log file on the standby database,有时被误解为归档日志的文件名转换。 如在某standby备库进行以下测试: alter system...
#POST 4 MIN READ
2010-05-31

ORA-00600 [kcbz_check_objd_typ_3]错误一例

5月26日凌晨某客户实例警告日志中出现”ORA-00600: internal error code, arguments: [kcbz_check_objd_typ_3], [0], [0], [1], [], [], [], []“,经过分析发现与之前CR实例发生的600错误情况症状相同。 从跟踪文件m1_m0001_4209.trc中可以看到当时的执行的SQL语句,如附件。 PL/SQL的调...
#POST 4 MIN READ
2010-05-28

Storage Portfolio:Oracle is a Storage Company

Not all data is created equal. As data ages it is not utilized as often and so it makes pure financial sense to offload less accessed data to cheaper storage media and it can improve performance of th...
#POST 13 MIN READ
2010-05-28

ora-4031 and "obj stat memory" component in Shared Pool

My customer has an application which using a lots of "temporary" table. They create so many tables but only operate once.And they are using automatic SGA management,all this cause large memory usage i...
#POST 21 MIN READ
2010-05-28

QQ腾讯公司的面试题,十分搞笑

题目叙述十分网络化也很人性,大多数题目我都不懂,恐怕也来不及学了.............. 腾讯公司是网民公认的山寨软件之王,这个形容有些贬义;但其山寨的软件往往“青出于蓝而胜于蓝”,由此可见其本身技术实力还是非常power的。
#POST 1 MIN READ
2010-05-24

Kingsoft AntiVirus(金山毒霸) and av-comparatives organization

中午在chinaunix看到这条新闻《“打假名人”王海:金山毒霸谎称全球第一》: 晨报讯(记者 叶青) 在AV-C国际评测中病毒检测率本是倒数第一,却在产品宣传中谎称“全球第一”?昨日,“打假名人”王海向众媒体指称金山毒霸虚假宣传,欺骗广大消费者, 并表示其已向海淀法院递交诉状。对于这一指控,金山毒霸则给予了坚决否认。王海称,2010年5月17日其因电脑出现问题在北京连邦软件股份有限公司杭州旗舰店...
#POST 3 MIN READ
2010-05-21

ORA-600 [kddummy_blkchk] [18038] 一例

一位客户的Oracle告警日志中出现了ORA-600 [kddummy_blkchk] [18038]故障,alert中的具体信息: Errors in file /u01/app/oracle/admin/prdw014a/udump/prdw014a_ora_4377.trc: ORA-00600: internal error code, arguments: [kddummy_blkchk...
#POST 65 MIN READ
2010-05-21

EnterpriseDB Replication,复制Oracle数据测试(2)

介绍完了EnterpriseDB复制软件基本原理和注意事项,我们接下来进行Oracle数据复制到EntepriseDB advanced Server的实际演练。 先在Oracle实例中创建复制测试所用到的数据: SQL> drop user source cascade; User dropped. SQL> create user source identified by sour...
#POST 15 MIN READ