Category Archives: BUG

Oracle bugs

非空字段空值的产生

Posted on 2016/07/06 by yangtingkun

上一篇讨论了非空字段中如果存在空值对于查询的影响，这里描述一下导致问题的原因。 非空字段空值对查询的影响：https://yangtingkun.net/?p=1481 书接上文，其实CBO的判断本身是没有问题的，问题在于，为什么一个空值会存在非空约束的字段中。 重新看一下问题： SQL> select * from t_def; ID NAME TYPE ———- —————————— ——– 1 a SQL> select * from t_def where type is null; no rows selected SQL> select * from t_def where type is not null; ID … Continue reading →

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非空字段空值对查询的影响

Posted on 2016/07/06 by yangtingkun

BLOG有三年没有更新了，其实这篇文档也是三年前写的，不过当时没有贴出来，今天看到有人问起，于是分享出来。 这是客户数据库中碰到的一个有意思的问题。 数据库版本为11.2.0.3，客户的DSG同步软件在同步某张表时出现了错误，报错无非插入空值ORA-1400，本来这是一个很简单的问题，但是诊断发现问题比较有意思： SQL> select * from t_def; ID NAME TYPE ———- —————————— ——– 1 a SQL> select * from t_def where type is null; no rows selected SQL> select * from t_def where type is not null; ID NAME … Continue reading →

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ORA-7445(kjbcrcomplete)错误

Posted on 2013/07/18 by yangtingkun

客户10.2.0.5 RAC在验证表的逻辑结构是出现ORA-7445错误。 错误信息如下： Sun Mar 31 03:45:16 EAT 2013 Errors IN file /oracle/app/admin/orcl/udump/orcl2_ora_4039.trc: ORA-07445: 出现异常错误: 核心转储 [kjbcrcomplete()+5521] [SIGSEGV] [Invalid permissions FOR mapped object] [0x00000002A] [] []Sun Mar 31 03:45:16 EAT 2013 Errors in file /oracle/app/admin/orcl/udump/orcl2_ora_4039.trc: ORA-07445: 出现异常错误: 核心转储 [kjbcrcomplete()+5521] [SIGSEGV] … Continue reading →

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ORA-600(13310)错误

Posted on 2013/07/16 by yangtingkun

客户10.2.0.4 RAC环境出现ORA-600[13310]错误。 错误信息如下： Sun Aug 1 04:08:24 2010 Errors IN file /oracle/admin/ORCL/udump/orcl1_ora_14964.trc: ORA-00603: ORACLE server SESSION TERMINATED BY fatal error ORA-27544: Failed TO map memory region FOR export ORA-27300: OS system dependent operation:socket failed WITH STATUS: 23 ORA-27301: OS failure … Continue reading →

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ORA-600(17147)和ORA-7445(__lwp_kill)错误

Posted on 2013/07/15 by yangtingkun

客户10.2.0.4 RAC环境出现ORA-600[17147]和ORA-7445[__lwp_kill]错误。 错误信息为： Fri DEC 14 16:05:56 2012 Errors IN file /oraclelog/admin/orcl/bdump/orcl2_diag_27263.trc: ORA-07445: exception encountered: core dump [__lwp_kill()+48] [SIGIOT] [UNKNOWN code] [0x000006A7F] [] [] ORA-00600: internal error code, arguments: [17147], [0x9FFFFFFFFD3E6BB8], [], [], [], [], [], [] Fri DEC 14 … Continue reading →

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ORA-600(17059)错误

Posted on 2013/07/14 by yangtingkun

客户10.2.0.4 RAC出现大量的ORA-600[17059]错误。 错误信息如下： Tue May 21 09:55:30 2013 Errors IN file /oraclelog/admin/orcl/bdump/orcl1_j000_307.trc: ORA-00600: 内部错误代码, 参数: [17059], [0xC000001346657EB8], [], [], [], [], [], [] Tue May 21 09:55:32 2013 Errors IN file /oraclelog/admin/orcl/bdump/orcl1_j000_307.trc: ORA-00600: 内部错误代码, 参数: [17059], [0xC000001346657EB8], [], [], [], … Continue reading →

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系统存在严重的latch: undo global data等待

Posted on 2013/07/13 by yangtingkun

客户10.2.0.5 RAC环境出现了严重的latch: undo global data等待。 问题时刻AWR的TOP如下： Event Waits Time(s) Avg Wait(ms) % Total Call   Time Wait Class latch: undo   global data 6,245,400 1,372,583 220 22.0 Other gc buffer busy 114,190,782 1,329,749 12 21.3 Cluster enq: TX – row … Continue reading →

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ORA-600(ktrgcm_3)错误

Posted on 2013/07/10 by yangtingkun

客户10.2.0.5 RAC数据库出现ORA-600[ktrgcm_3]错误。 错误信息如下： Sun Jul 07 01:06:00 EAT 2013 Errors IN file /oracle/admin/orcl/udump/orcl1_ora_28947.trc: ORA-00600: internal error code, arguments: [ktrgcm_3], [], [], [], [], [], [], []Sun Jul 07 01:06:00 EAT 2013 Errors in file /oracle/admin/orcl/udump/orcl1_ora_28947.trc: ORA-00600: internal error code, arguments: … Continue reading →

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ORA-600(krbb2ec_stamp_mismtach)错误

Posted on 2013/07/09 by yangtingkun

备份归档日志导致的ORA-600错误。 错误信息如下： Tue Aug 16 02:43:58 2011 ALTER SYSTEM ARCHIVE LOG Tue Aug 16 02:44:01 2011 Thread 1 advanced TO log SEQUENCE 5940 (LGWR switch) CURRENT log# 7 seq# 5940 mem# 0: /dev/orcl3vg1/rdb3vg1_1_redo71 CURRENT log# 7 seq# 5940 mem# 1: … Continue reading →

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ORA-600(koksadqb1)错误

Posted on 2013/07/08 by yangtingkun

使用utlrp.sql编译失效对象引发的ORA-600错误。 错误信息如下： Sat DEC 19 05:29:59 2009 Completed: ALTER DATABASE OPEN Sat DEC 19 05:30:20 2009 SERVER COMPONENT id=UTLRP_BGN: TIMESTAMP=2009-12-19 05:30:20 Sat DEC 19 05:31:09 2009 Errors IN file /oraclelog/admin/orcl3/bdump/orcl31_cjq0_24952.trc: ORA-00604: error occurred at recursive SQL level 1 ORA-04031: unable … Continue reading →

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