---开启附加日志功能
SQL> archive log list; Database log mode Archive Mode Automatic archival Enabled Archive destination /home/oracle/archive_log Oldest online log sequence 27 Next log sequence to archive 29 Current log sequence 29 SQL> alter database add supplemental log data; Database altered.
--模拟一个删除
SQL> conn scott/tiger Connected. SQL> select * from tab; TNAME TABTYPE CLUSTERID ------------------------------ ------- ---------- DEPT TABLE EMP TABLE BONUS TABLE SALGRADE TABLE TEST TABLE EXT_TEST TABLE TEST2 TABLE EXT_TEST_SQLLOADER TABLE 8 rows selected. SQL> delete emp; 14 rows deleted. SQL> commit; Commit complete.
---开始日志挖掘
SQL> conn /as sysdba Connected. SQL> desc dbms_logmnr PROCEDURE ADD_LOGFILE Argument Name Type In/Out Default? ------------------------------ ----------------------- ------ -------- LOGFILENAME VARCHAR2 IN OPTIONS BINARY_INTEGER IN DEFAULT FUNCTION COLUMN_PRESENT RETURNS BINARY_INTEGER Argument Name Type In/Out Default? ------------------------------ ----------------------- ------ -------- SQL_REDO_UNDO NUMBER IN DEFAULT COLUMN_NAME VARCHAR2 IN DEFAULT PROCEDURE END_LOGMNR FUNCTION MINE_VALUE RETURNS VARCHAR2 Argument Name Type In/Out Default? ------------------------------ ----------------------- ------ -------- SQL_REDO_UNDO NUMBER IN DEFAULT COLUMN_NAME VARCHAR2 IN DEFAULT PROCEDURE REMOVE_LOGFILE Argument Name Type In/Out Default? ------------------------------ ----------------------- ------ -------- LOGFILENAME VARCHAR2 IN PROCEDURE START_LOGMNR Argument Name Type In/Out Default? ------------------------------ ----------------------- ------ -------- STARTSCN NUMBER IN DEFAULT ENDSCN NUMBER IN DEFAULT STARTTIME DATE IN DEFAULT ENDTIME DATE IN DEFAULT DICTFILENAME VARCHAR2 IN DEFAULT OPTIONS BINARY_INTEGER IN DEFAULT
SQL> select member from v$logfile; MEMBER -------------------------------------------------------------------------------- /u01/app/oracle/oradata/ORCL/redo03.log /u01/app/oracle/oradata/ORCL/redo02.log /u01/app/oracle/oradata/ORCL/redo01.log SQL> exec dbms_logmnr.ADD_LOGFILE(LOGFILENAME=>'/u01/app/oracle/oradata/ORCL/redo01.log',OPTIONS=>dbms_logmnr.new); PL/SQL procedure successfully completed. SQL> exec dbms_logmnr.ADD_LOGFILE(LOGFILENAME=>'/u01/app/oracle/oradata/ORCL/redo02.log',OPTIONS=>dbms_logmnr.addfile); PL/SQL procedure successfully completed. SQL> exec dbms_logmnr.ADD_LOGFILE(LOGFILENAME=>'/u01/app/oracle/oradata/ORCL/redo03.log',OPTIONS=>dbms_logmnr.addfile); PL/SQL procedure successfully completed. SQL> exec dbms_logmnr.start_logmnr(OPTIONS=>dbms_logmnr.dict_from_online_catalog); PL/SQL procedure successfully completed.
SQL> select username,scn,timestamp,sql_redo from v$logmnr_contents where seg_name='EMP'; USERNAME SCN TIMESTAMP SQL_REDO ---------- ---------- ------------------- -------------------------------------------------- SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7369' a nd "ENAME" = 'SMITH' and "JOB" = 'CLERK' and "MGR" = '7902' and "HIREDATE" = TO_DATE('1980-12-17 00: 00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '800' and "COMM" IS NULL and "DEPTNO" = '20' and ROWID = 'AAAMfMAAEAAAAAgAAA'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7499' a nd "ENAME" = 'ALLEN' and "JOB" = 'SALESMAN' and "M GR" = '7698' and "HIREDATE" = TO_DATE('1981-02-20 00:00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '1 USERNAME SCN TIMESTAMP SQL_REDO ---------- ---------- ------------------- -------------------------------------------------- 600' and "COMM" = '300' and "DEPTNO" = '30' and RO WID = 'AAAMfMAAEAAAAAgAAB'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7521' a nd "ENAME" = 'WARD' and "JOB" = 'SALESMAN' and "MG R" = '7698' and "HIREDATE" = TO_DATE('1981-02-22 0 0:00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '12 50' and "COMM" = '500' and "DEPTNO" = '30' and ROW ID = 'AAAMfMAAEAAAAAgAAC'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7566' a USERNAME SCN TIMESTAMP SQL_REDO ---------- ---------- ------------------- -------------------------------------------------- nd "ENAME" = 'JONES' and "JOB" = 'MANAGER' and "MG R" = '7839' and "HIREDATE" = TO_DATE('1981-04-02 0 0:00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '29 75' and "COMM" IS NULL and "DEPTNO" = '20' and ROW ID = 'AAAMfMAAEAAAAAgAAD'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7654' a nd "ENAME" = 'MARTIN' and "JOB" = 'SALESMAN' and " MGR" = '7698' and "HIREDATE" = TO_DATE('1981-09-28 00:00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = ' 1250' and "COMM" = '1400' and "DEPTNO" = '30' and USERNAME SCN TIMESTAMP SQL_REDO ---------- ---------- ------------------- -------------------------------------------------- ROWID = 'AAAMfMAAEAAAAAgAAE'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7698' a nd "ENAME" = 'BLAKE' and "JOB" = 'MANAGER' and "MG R" = '7839' and "HIREDATE" = TO_DATE('1981-05-01 0 0:00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '28 50' and "COMM" IS NULL and "DEPTNO" = '30' and ROW ID = 'AAAMfMAAEAAAAAgAAF'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7782' a nd "ENAME" = 'CLARK' and "JOB" = 'MANAGER' and "MG USERNAME SCN TIMESTAMP SQL_REDO ---------- ---------- ------------------- -------------------------------------------------- R" = '7839' and "HIREDATE" = TO_DATE('1981-06-09 0 0:00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '24 50' and "COMM" IS NULL and "DEPTNO" = '10' and ROW ID = 'AAAMfMAAEAAAAAgAAG'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7788' a nd "ENAME" = 'SCOTT' and "JOB" = 'ANALYST' and "MG R" = '7566' and "HIREDATE" = TO_DATE('1987-04-19 0 0:00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '30 00' and "COMM" IS NULL and "DEPTNO" = '20' and ROW ID = 'AAAMfMAAEAAAAAgAAH'; USERNAME SCN TIMESTAMP SQL_REDO ---------- ---------- ------------------- -------------------------------------------------- SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7839' a nd "ENAME" = 'KING' and "JOB" = 'PRESIDENT' and "M GR" IS NULL and "HIREDATE" = TO_DATE('1981-11-17 0 0:00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '50 00' and "COMM" IS NULL and "DEPTNO" = '10' and ROW ID = 'AAAMfMAAEAAAAAgAAI'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7844' a nd "ENAME" = 'TURNER' and "JOB" = 'SALESMAN' and " MGR" = '7698' and "HIREDATE" = TO_DATE('1981-09-08 USERNAME SCN TIMESTAMP SQL_REDO ---------- ---------- ------------------- -------------------------------------------------- 00:00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = ' 1500' and "COMM" = '0' and "DEPTNO" = '30' and ROW ID = 'AAAMfMAAEAAAAAgAAJ'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7876' a nd "ENAME" = 'ADAMS' and "JOB" = 'CLERK' and "MGR" = '7788' and "HIREDATE" = TO_DATE('1987-05-23 00: 00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '1100 ' and "COMM" IS NULL and "DEPTNO" = '20' and ROWID = 'AAAMfMAAEAAAAAgAAK'; USERNAME SCN TIMESTAMP SQL_REDO ---------- ---------- ------------------- -------------------------------------------------- SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7900' a nd "ENAME" = 'JAMES' and "JOB" = 'CLERK' and "MGR" = '7698' and "HIREDATE" = TO_DATE('1981-12-03 00: 00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '950' and "COMM" IS NULL and "DEPTNO" = '30' and ROWID = 'AAAMfMAAEAAAAAgAAL'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7902' a nd "ENAME" = 'FORD' and "JOB" = 'ANALYST' and "MGR " = '7566' and "HIREDATE" = TO_DATE('1981-12-03 00 :00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '300 USERNAME SCN TIMESTAMP SQL_REDO ---------- ---------- ------------------- -------------------------------------------------- 0' and "COMM" IS NULL and "DEPTNO" = '20' and ROWI D = 'AAAMfMAAEAAAAAgAAM'; SCOTT 765514 2014-05-14 15:30:04 delete from "SCOTT"."EMP" where "EMPNO" = '7934' a nd "ENAME" = 'MILLER' and "JOB" = 'CLERK' and "MGR " = '7782' and "HIREDATE" = TO_DATE('1982-01-23 00 :00:00', 'yyyy-mm-dd hh24:mi:ss') and "SAL" = '130 0' and "COMM" IS NULL and "DEPTNO" = '10' and ROWI D = 'AAAMfMAAEAAAAAgAAN';
SQL> set pagesize 1000 SQL> select sql_undo from v$logmnr_contents where seg_name='EMP'; SQL_UNDO ------------------------------------------------------------------------------------------------------------------------ insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7369','SMITH','CLERK',' 7902',TO_DATE('1980-12-17 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'800',NULL,'20'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7499','ALLEN','SALESMAN ','7698',TO_DATE('1981-02-20 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'1600','300','30'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7521','WARD','SALESMAN' ,'7698',TO_DATE('1981-02-22 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'1250','500','30'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7566','JONES','MANAGER' ,'7839',TO_DATE('1981-04-02 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'2975',NULL,'20'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7654','MARTIN','SALESMA N','7698',TO_DATE('1981-09-28 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'1250','1400','30'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7698','BLAKE','MANAGER' ,'7839',TO_DATE('1981-05-01 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'2850',NULL,'30'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7782','CLARK','MANAGER' ,'7839',TO_DATE('1981-06-09 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'2450',NULL,'10'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7788','SCOTT','ANALYST' ,'7566',TO_DATE('1987-04-19 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'3000',NULL,'20'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7839','KING','PRESIDENT ',NULL,TO_DATE('1981-11-17 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'5000',NULL,'10'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7844','TURNER','SALESMA N','7698',TO_DATE('1981-09-08 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'1500','0','30'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7876','ADAMS','CLERK',' 7788',TO_DATE('1987-05-23 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'1100',NULL,'20'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7900','JAMES','CLERK',' 7698',TO_DATE('1981-12-03 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'950',NULL,'30'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7902','FORD','ANALYST', '7566',TO_DATE('1981-12-03 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'3000',NULL,'20'); insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values ('7934','MILLER','CLERK', '7782',TO_DATE('1982-01-23 00:00:00', 'yyyy-mm-dd hh24:mi:ss'),'1300',NULL,'10'); 14 rows selected.
SQL> exec dbms_logmnr.end_logmnr;
PL/SQL procedure successfully completed.