如何查看数据库alert日志文件_小组_ThinkSAAS
如何查看数据库alert日志文件
如何查看数据库alert日志文件
1、查看操作系统版本 SQL& select * from v$ BANNER ---------------------------------------------------------------- Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod PL/SQL Release 10.2.0.1.0 - Production CORE 10.2.0.1.0 Production TNS for Linux: Version 10.2.0.1.0 - Production NLSRTL Version 10.2.0.1.0 - Production SQL& 2、查看预警日志文件（alert_sid.log）的位置 SQL& show parameter dump NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ background_core_dump string partial background_dump_dest string /u01/oracle/admin/bdump core_dump_dest string /u01/oracle/admin/cdump max_dump_file_size string 10240 shadow_core_dump string partial user_dump_dest string /u01/oracle/admin/udump 3、创建目录alert 注意：directory不是实体，只是一个指向，指向os中一个路径 SQL& create or replace directory alert as &/u01/oracle/admin/bdump&; Directory created. SQL& 4、创建外部表alert SQL& create table alert 1 (log varchar2(1000)) 2 organization external 3 (type oracle_loader 4 default directory alert 5 access parameters 6 (records delimited by newline) 7 location (&alert_PROD.log&)) 8 re Table created. 5、查看alert中的内容 SQL& select * from alert where rownum&20; LOG -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Wed Feb 27 11:05:11 2013 Starting ORACLE instance (normal) Cannot determine all dependent dynamic libraries for /proc/self/exe Unable to find dynamic library libocr10.so in search paths RPATH = /ade/aime1_build2101/oracle/has/lib/:/ade/aime1_build2101/oracle/lib/:/ade/aime1_build2101/oracle/has/lib/: LD_LIBRARY_PATH is not set! The default library directories are /lib and /usr/lib Unable to find dynamic library libocrb10.so in search paths Unable to find dynamic library libocrutl10.so in search paths Unable to find dynamic library libocrutl10.so in search paths LICENSE_MAX_SESSION = 0 LICENSE_SESSIONS_WARNING = 0 Picked latch-free SCN scheme 2 Using LOG_ARCHIVE_DEST_1 parameter default value as /u01/oracle/product/10.2.0/db_1/dbs/arch Autotune of undo retention is turned on. IMODE=BR ILAT =10 LICENSE_MAX_USERS = 0 SYS auditing is disabled 19 rows selected. SQL& 6、看看数据库有哪些 可爱的ORA- 错误吧 SQL& select * from alert where log like &%ORA-%&; LOG -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ORA-959 signalled during: alter database default tablespace users... ORA-959 signalled during: drop tablespace uses... ORA-12919 signalled during: drop tablespace users... ORA-1549 signalled during: drop tablespace users... ORA-1505 signalled during: alter database add logfile group 1 ORA-1184 signalled during: alter database add logfile group 1 ORA-1013 signalled during: alter tablespace tts read only... ORA-1013 signalled during: alter tablespace tts read only... ORA-1013 signalled during: alter tablespace users read only... ORA-1539 signalled during: alter tablespace users read only...
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> Windows系统查看MySQL数据库日志的方法
Windows系统查看MySQL数据库日志的方法
导读：以下的文章主要介绍的是MySQL 操作日志查看的实际操作步骤以及对其实际操作步骤的具体描述，假如你在实际操作中遇到相似的情况，但是你却不知道对其如何正确的解决，那么以下的文章对你而言一定是良师益友。刚接触MySQL不久，发现缺少比较多企业级的功能，想
以下的文章主要介绍的是MySQL 操作日志查看的实际操作步骤以及对其实际操作步骤的具体描述，假如你在实际操作中遇到相似的情况，但是你却不知道对其如何正确的解决，那么以下的文章对你而言一定是良师益友。
刚接触MySQL不久，发现缺少比较多企业级的功能，想实时查看MySQL所执行的sql语句,类似mssql里的事件探查器，上网找了一下，只能将执行操作写到日志里，做法如下:
对my.ini文件进行设置,我的MySQL安装环境是xp sp2,该文件在c:\windows\..下，打开文件进行修改
[MySQLd] &
basedir=E:/MySQL&4.0.12 &
#bind-address=192.168.15.196 &
datadir=E:/MySQL&4.0.12/data &
#language=E:/MySQL&4.0.12/share/your&language&directory
#slow&query&log#=slowqueris.log &
#tmpdir#= &
#port=3306&
#set-variable=key_buffer=16M&
long_query_time =1 --是指执行超过多久的sql会被log下来，这里是1秒
log-slow-queries=slowqueris.log --将查询返回较慢的语句进行记录
log-queries-not-using-indexes = nouseindex.log
--就是字面意思，log下来没有使用索引的query
log=mylog.log --对所有执行语句进行记录
以上参数开启后，可能会影响MySQL性能,在生产环境下建议关闭
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本文将详细介绍下查看操作系统版本/查看预警日志文件（alert_sid.log）的位置/查看alert中的内容/看看数据库有哪些 可爱的ORA- 错误吧等等，感兴趣的你可以参考下
1、查看操作系统版本 SQL& select * from v$ BANNER ---------------------------------------------------------------- Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod PL/SQL Release 10.2.0.1.0 - Production CORE 10.2.0.1.0 Production TNS for Linux: Version 10.2.0.1.0 - Production NLSRTL Version 10.2.0.1.0 - Production SQL& 2、查看预警日志文件（alert_sid.log）的位置 SQL& show parameter dump NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ background_core_dump string partial background_dump_dest string /u01/oracle/admin/bdump core_dump_dest string /u01/oracle/admin/cdump max_dump_file_size string 10240 shadow_core_dump string partial user_dump_dest string /u01/oracle/admin/udump 3、创建目录alert 注意：directory不是实体，只是一个指向，指向os中一个路径 SQL& create or replace directory alert as '/u01/oracle/admin/bdump'; Directory created. SQL& 4、创建外部表alert SQL& create table alert 1 (log varchar2(1000)) 2 organization external 3 (type oracle_loader 4 default directory alert 5 access parameters 6 (records delimited by newline) 7 location ('alert_PROD.log')) 8 re Table created. 5、查看alert中的内容 SQL& select * from alert where rownum&20; LOG -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Wed Feb 27 11:05:11 2013 Starting ORACLE instance (normal) Cannot determine all dependent dynamic libraries for /proc/self/exe Unable to find dynamic library libocr10.so in search paths RPATH = /ade/aime1_build2101/oracle/has/lib/:/ade/aime1_build2101/oracle/lib/:/ade/aime1_build2101/oracle/has/lib/: LD_LIBRARY_PATH is not set! The default library directories are /lib and /usr/lib Unable to find dynamic library libocrb10.so in search paths Unable to find dynamic library libocrutl10.so in search paths Unable to find dynamic library libocrutl10.so in search paths LICENSE_MAX_SESSION = 0 LICENSE_SESSIONS_WARNING = 0 Picked latch-free SCN scheme 2 Using LOG_ARCHIVE_DEST_1 parameter default value as /u01/oracle/product/10.2.0/db_1/dbs/arch Autotune of undo retention is turned on. IMODE=BR ILAT =10 LICENSE_MAX_USERS = 0 SYS auditing is disabled 19 rows selected. SQL& 6、看看数据库有哪些 可爱的ORA- 错误吧 SQL& select * from alert where log like '%ORA-%'; LOG -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- ORA-959 signalled during: alter database default tablespace users... ORA-959 signalled during: drop tablespace uses... ORA-12919 signalled during: drop tablespace users... ORA-1549 signalled during: drop tablespace users... ORA-1505 signalled during: alter database add logfile group 1 ORA-1184 signalled during: alter database add logfile group 1 ORA-1013 signalled during: alter tablespace tts read only... ORA-1013 signalled during: alter tablespace tts read only... ORA-1013 signalled during: alter tablespace users read only... ORA-1539 signalled during: alter tablespace users read only...
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