oracle11g利用logminer查看归档信息
2016-01-21 16:26
489 查看
logminer是oracle的一项对redo log发掘的技术,通过分析已归档的归档日志进行,也能帮助dba对于数据库业务状态进行详尽的分析。本次实验是为了初步探索logminer的用法。
官方是这么说的:All changes made to user data or to the database dictionary are recorded in the Oracle redo log files so that database recovery operations can be performed.
Because LogMiner provides a well-defined, easy-to-use, and comprehensive relational interface to redo log files, it can be used as a powerful data auditing tool, and also as a sophisticated data analysis tool. The following list describes some key capabilities
of LogMiner:
先利用 select stamp,name,first_time,next_time,blocks from v$archived_log; 查出需要分析的归档日志名字
建立logminer数据字典存放在redolog file里
EXECUTE DBMS_LOGMNR_D.BUILD( -
OPTIONS=> DBMS_LOGMNR_D.STORE_IN_REDO_LOGS);
然后再sqlplus中执行EXECUTE DBMS_LOGMNR.ADD_LOGFILE( -
LOGFILENAME => E:\ARCHIVELOG\ARC0000000008_0899652482.0001');
然后就可以利用select xid,scn,timestamp,table_name,operation,sql_redo,sql_undo from V$LOGMNR_CONTENTS;
而这个是针对单次查询的,如果需要一段时间内分析结果,可以对利用官方推荐的方法去生成一个V$LOGMNR_CONTENTS在其他文件上。
详细可以参考http://docs.oracle.com/cd/E11882_01/server.112/e22490/logminer.htm#SUTIL1565
更多0
官方是这么说的:All changes made to user data or to the database dictionary are recorded in the Oracle redo log files so that database recovery operations can be performed.
Because LogMiner provides a well-defined, easy-to-use, and comprehensive relational interface to redo log files, it can be used as a powerful data auditing tool, and also as a sophisticated data analysis tool. The following list describes some key capabilities
of LogMiner:
先利用 select stamp,name,first_time,next_time,blocks from v$archived_log; 查出需要分析的归档日志名字
建立logminer数据字典存放在redolog file里
EXECUTE DBMS_LOGMNR_D.BUILD( -
OPTIONS=> DBMS_LOGMNR_D.STORE_IN_REDO_LOGS);
然后再sqlplus中执行EXECUTE DBMS_LOGMNR.ADD_LOGFILE( -
LOGFILENAME => E:\ARCHIVELOG\ARC0000000008_0899652482.0001');
然后就可以利用select xid,scn,timestamp,table_name,operation,sql_redo,sql_undo from V$LOGMNR_CONTENTS;
而这个是针对单次查询的,如果需要一段时间内分析结果,可以对利用官方推荐的方法去生成一个V$LOGMNR_CONTENTS在其他文件上。
详细可以参考http://docs.oracle.com/cd/E11882_01/server.112/e22490/logminer.htm#SUTIL1565
更多0
相关文章推荐
- Oracle安装
- DBLink To Oracle
- Oracle中删除大数据量表
- Oracle模糊查询
- Oracle 多分页查询 重复数据
- ORA-01565: error in identifying file '+DATA/ORACLE/spfileORACLE.ora'
- java 并发插入数据到oracle
- [转]Oracle如何实现创建数据库、备份数据库及数据导出导入的一条龙操作
- Oracle 的连接方式ori和thin
- 归档—监控ORACLE数据库告警日志
- Installation Oracle11gR2 RAC---自动打GI PSU补丁(11.2.0.4.8)
- build.gradle添加Oracle jdbc6 链接
- ORACLE SEQUENCE用法
- oracle 11G 12C 安装万能大法
- Oracle创建表空间和用户
- oracle:RETURNING 子句
- Oracle基础
- Oracle查询数据表数据很少却很慢(查询空表很很耗时)
- PRVF-4664 PRVF-4657: Found inconsistent name resolution entries for SCAN name (文档 ID 887471.1)
- 工作中遇到的oracle分页查询问题及多表查询相关