Logminer简单用法

Logminer简单用法

JUN 15 2013 ORACLE VIEWED 11 TIMES.

1. 安装Logminer

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SQL>@?/rdbms/admin/dbmslm.sql SQL>@?/rdbms/admin/dbmslmd.sql SQL>@?/rdbms/admin/dbmslms.sql

2. 创建数据字典

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SQL> alter system set utl_file_dir='/oradata/lgmnr' scope=spfile; --restart the instance -- Create a dictionary file -- (init.ora parameter utl_file_dir must be set) exec dbms_logmnr_d.build('mydictfile', '/oradata/lgmnr');

3. 添加日志

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-- Register log files, can be from a different db -- (NEWFILE=start new list/ ADDFILE=add next file) exec dbms_logmnr.add_logfile('/arch/1_141_810359695.dbf', dbms_logmnr.new); exec dbms_logmnr.add_logfile('/arch/1_142_810359695.dbf', dbms_logmnr.addfile); exec dbms_logmnr.add_logfile('/arch/1_143_810359695.dbf', dbms_logmnr.addfile);

4. 使用字典分析日志

1 2	-- Start the logminer session exec dbms_logmnr.start_logmnr(DictFileName => '/oradata/lgmnr/mydictfile');

5. 查看日志

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-- Query v_$logmnr_contents view to extract required info select timestamp, sql_undo from sys.v_$logmnr_contents where seg_name = 'T'; select operation,sql_redo,sql_undo from v$logmnr_contents where seg_owner='BBED' and seg_name='T' and rownum<=10;

6. 结束日志挖掘

1	SQL> execute dbms_logmnr.end_logmnr;

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