FLASHBACK QUERY(VERSION;TBLE;TRANSACTION)

SYS@orcl SQL>SET TIME ON
16:00:30 SYS@orcl SQL>CONN SCOTT/TIGER
已连接。
16:00:52 SCOTT@orcl SQL>select table_name from user_tables;

TABLE_NAME
------------------------------
DEPT
BONUS
SALGRADE
MEDEPT
EMP
TEST_TAB
TEST03

已选择7行。

16:01:12 SCOTT@orcl SQL>select * from test03;

     EMPNO ENAME      JOB              MGR HIREDATE              SAL       COMM     DEPTNO
---------- ---------- --------- ---------- -------------- ---------- ---------- ----------
      7369 SMITH      CLERK           7902 17-12月-80            800                    20
      7499 ALLEN      SALESMAN        7698 20-2月 -81           1600        300         30
      7521 WARD       SALESMAN        7698 22-2月 -81           1250        500         30
      7566 JONES      MANAGER         7839 02-4月 -81           2975                    20
      7654 MARTIN     SALESMAN        7698 28-9月 -81           1250       1400         30
      7698 BLAKE      MANAGER         7839 01-5月 -81           2850                    30
      7782 CLARK      MANAGER         7839 09-6月 -81           2450                    10
      7788 SCOTT      ANALYST         7566 19-4月 -87           3000                    20
      7839 KING       PRESIDENT            17-11月-81           5000                    10
      7844 TURNER     SALESMAN        7698 08-9月 -81           1500          0         30
      7876 ADAMS      CLERK           7788 23-5月 -87           1100                    20

     EMPNO ENAME      JOB              MGR HIREDATE              SAL       COMM     DEPTNO
---------- ---------- --------- ---------- -------------- ---------- ---------- ----------
      7900 JAMES      CLERK           7698 03-12月-81            950                    30
      7902 FORD       ANALYST         7566 03-12月-81           3000                    20
      7934 MILLER     CLERK           7782 23-1月 -82           1300                    10

已选择14行。

16:01:23 SCOTT@orcl SQL>delete from test03;

已删除14行。

16:01:33 SCOTT@orcl SQL>commit;

提交完成。

16:01:36 SCOTT@orcl SQL>select * from test03;

未选定行

16:01:41 SCOTT@orcl SQL>select * from test03 as of timestamp to_timestamp('2011-12-30 16:01:22','yyyy-mm-dd hh24:mi:ss');

     EMPNO ENAME      JOB              MGR HIREDATE              SAL       COMM     DEPTNO
---------- ---------- --------- ---------- -------------- ---------- ---------- ----------
      7900 JAMES      CLERK           7698 03-12月-81            950                    30
      7902 FORD       ANALYST         7566 03-12月-81           3000                    20
      7934 MILLER     CLERK           7782 23-1月 -82           1300                    10

已选择14行。

16:02:48 SCOTT@orcl SQL>flashback table test03 to timestamp timestamp('2011-12-30 16:01:22','yyyy-mm-dd hh24:mi:ss');
flashback table test03 to timestamp timestamp('2011-12-30 16:01:22','yyyy-mm-dd hh24:mi:ss')
*
第 1 行出现错误:
ORA-08189: 因为未启用行移动功能, 不能闪回表

16:03:39 SCOTT@orcl SQL>alter table test03 enable row movement;

表已更改。

16:03:54 SCOTT@orcl SQL>flashback table test03 to timestamp to_timestamp('2011-12-30 16:01:22','yyyy-mm-dd hh24:mi:ss');
flashback table test03 to timestamp to_timestamp('2011-12-30 16:01:22','yyyy-mm-dd hh24:mi:ss')
*
第 1 行出现错误:
ORA-00604: 递归 SQL 级别 1 出现错误
ORA-25153: 临时表空间为空

16:04:33 SCOTT@orcl SQL>conn sys/sfis as sysdba
已连接。

16:06:15 SYS@orcl SQL>alter tablespace temp add tempfile
16:06:31 2 'd:\oradata\orcl\temp01.dbf' size 50m;

表空间已更改。

16:06:50 SYS@orcl SQL>select file_name from dba_temp_files;

FILE_NAME
----------------------------------------------------------------------------------------------------------------------------------------------------------
D:\ORADATA\ORCL\TEMP01.DBF

16:07:10 SYS@orcl SQL>conn scott/tiger
已连接。
16:07:14 SCOTT@orcl SQL>flashback table test03 to timestamp to_timestamp('2011-12-30 16:01:22','yyyy-mm-dd hh24:mi:ss');

闪回完成。

16:08:01 SCOTT@orcl SQL>select * from test03;

已选择14行。

16:08:13 SCOTT@orcl SQL>select dbms_flashback.get_system_change_number from dual;
select dbms_flashback.get_system_change_number from dual
*
第 1 行出现错误:
ORA-00904: : 标识符无效

16:09:52 SCOTT@orcl SQL>conn sys/sfis as sysdba
已连接。
16:14:10 SYS@orcl SQL>select dbms_flashback.get_system_change_number from dual;

GET_SYSTEM_CHANGE_NUMBER
------------------------
                 3033857

16:14:14 SYS@orcl SQL>delete from scott.test03;

已删除14行。

16:14:24 SYS@orcl SQL>select * from scott.test03;

未选定行

16:14:30 SYS@orcl SQL>commit;

提交完成。

16:14:33 SYS@orcl SQL>select * from scott.test03;

未选定行

16:14:36 SYS@orcl SQL>flashback table scott.test03 to scn 3033857;

闪回完成。

16:14:56 SYS@orcl SQL>select * from scott.test03;

已选择14行。

17:00:01 SYS@orcl SQL>select empno,ename ,versions_xid,versions_startscn,versions_endscn,versions_operation from scott.emp versions between scn minvalue and maxvalue where empno = 7934;

     EMPNO ENAME      VERSIONS_XID     VERSIONS_STARTSCN VERSIONS_ENDSCN V
---------- ---------- ---------------- ----------------- --------------- -
      7934 MILLER     06001300F2040000           3036540                 I
      7934 MILLER     06001300F2040000           3036540                 D
      7934 MILLER                                                3036540

17:02:50 SYS@orcl SQL>SELECT operation,undo_sql from flashback_transaction_query where xid=hextoraw('06001300F2040000');

OPERATION                          UNDO_SQL
--------------------------------   ----------------------------------------------------------------------------
INSERT                             delete from "SCOTT"."EMP" where ROWID = 'AAAMfPAAEAAAAAeAAO';                                                                                                                                                                                                                            DELETE                             insert into "SCOTT"."EMP"("EMPNO","ENAME","JOB","MGR","HIREDATE","SAL","COMM","DEPTNO") values        ('7934','MILLER','CLERK','7782',TO_DATE('23-1月 -82', 'DD-MON-RR'),'1400',NULL,'10');                                                                                                                                                                                                                                                                                                                                                                  UPDATE                             update "SCOTT"."EMP" set "SAL" = '1300' where ROWID = 'AAAMfPAAEAAAAAeAAN';

17:04:35 SYS@orcl SQL>spool off;

转载于:https://www.cnblogs.com/lovemail/archive/2011/12/31/2308389.html

FLASHBACK QUERY(VERSION;TBLE;TRANSACTION)

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