数据库必须运行在归档模式；
必须已经打开追加日志。
打开追加日志：
点击(此处)折叠或打开
- ALTER DATABASE ADD SUPPLEMENTAL LOG DATA;
点击(此处)折叠或打开
- SELECT SUPPLEMENTAL_LOG_DATA_MIN FROM V$DATABASE;
SUPPLEMENTAL_LOG
----------------
YES
一般已经安装，可通过检查视图v$logmnr_contents来确定。如果没安装，先后运行dbmslm.sql和dbmslmd.sql即可。
2. 添加日志执行分析
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-
execute dbms_logmnr.add_logfile('/home/oracle/log/thread_1_seq_65.289.865350039', DBMS_LOGMNR.NEW);
- #再新增一个日志
- execute dbms_logmnr.add_logfile('/home/oracle/log/thread_1_seq_66.290.865350039', DBMS_LOGMNR.ADDFILE);
-
execute dbms_logmnr.start_logmnr(-
- OPTIONS => DBMS_LOGMNR.DICT_FROM_ONLINE_CATALOG);
3. 查看分析结果
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- SELECT LOW_TIME, HIGH_TIME, LOW_SCN, NEXT_SCN FROM V$LOGMNR_LOGS;
-
-
SELECT USERNAME, SQL_REDO, SQL_UNDO
-
FROM V$LOGMNR_CONTENTS
- WHERE USERNAME = 'HK' AND OPERATION = 'INSERT';
点击(此处)折叠或打开
- execute dbms_logmnr.end_logmnr;