快速掌握使用"LogMiner"的具体步骤

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使用"LogMiner"的具体步骤：

1.创建DBMS_LOGMNR包

SQL>@$ORACLE_HOME/rdbms/admin/dbmslm.sql

2.创建相关数据字典

SQL>@$ORACLE_HOME/rdbms/admin/dbmslmd.sql

3.修改初始化参数UTL_FILE_DIR,指定分析数据的存放处

SQL>alter system set UTL_FILE_DIR=''/opt/oracle/logminer'' scope=spfile;

4.重启数据库

SQL>shutdown immediate
SQL>startup

5.创建数据字典文件

SQL>execute dbms_logmnr_d.build
(dictionary_filename =>''sqltrace.ora'',dictionary

_location =>''/opt/oracle/logminer/log'');

6.建立日志分析表

SQL> execute dbms_logmnr.add_logfile
(options =>dbms_logmnr.new,logfilename 
=>''/opt/oracle/ora92/rdbms/ARC00009.001'');

7.添加用于分析的日志文件

SQL> execute dbms_logmnr.add_logfile
(options =>dbms_logmnr.addfile,logfilename=>'
'/opt/oracle/ora92/rdbms/ARC00010.001'');

SQL> execute dbms_logmnr.add_logfile
(options =>dbms_logmnr.addfile,logfilename =
>/opt/oracle/ora92/rdbms/ARC00011.001'');

删除:

SQL> execute dbms_logmnr.add_logfile
(options =>dbms_logmnr.removefile,logfilenam

e =>''/opt/oracle/ora92/rdbms/ARC00011.001'');

8.启动LogMiner进行分析

SQL> execute dbms_logmnr.start_logmnr(dictfilename 

=>''/opt/oracle/logminer/log/sqltrace.or

a'',starttime =>to_date(''20040625 09:00:00'','

'yyyymmdd hh24:mi:ss''),endtime =>to_date

(''20040625 22:00:00'',''yyyymmdd hh24:mi:ss''));

9.参看分析结果

select operation,sql_redo,sql_undo from v$logmnr_contents;

10.结束分析

SQL> execute dbms_logmnr.end_logmnr;

注释：如果结束视图，v$logmnr_contents中的分析结果也将随之消失。