FLASHBACK QUERY(VERSION;TBLE;TRANSACTION)-白红宇

FLASHBACK QUERY(VERSION;TBLE;TRANSACTION)

阅读量：6983 次

发布时间：2019-06-27

本文共 6775 字，大约阅读时间需要 22 分钟。

SQL>SET TIME ON

16:00:30 SQL>CONN SCOTT/TIGER

已连接。

16:00:52 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 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 SQL>delete from test03;

已删除14行。

16:01:33 SQL>commit;

提交完成。

16:01:36 SQL>select * from test03;

未选定行

16:01:41 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

---------- ---------- --------- ---------- -------------- ---------- ---------- ----------

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。

16:02:48 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 SQL>alter table test03 enable row movement;

表已更改。

16:03:54 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 SQL>conn sys/sfis as sysdba

已连接。

16:06:15 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 SQL>select file_name from dba_temp_files;

FILE_NAME

----------------------------------------------------------------------------------------------------------------------------------------------------------

D:\ORADATA\ORCL\TEMP01.DBF

16:07:10 SQL>conn scott/tiger

已连接。

16:07:14 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 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。

16:08:13 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 SQL>conn sys/sfis as sysdba

已连接。

16:14:10 SQL>select dbms_flashback.get_system_change_number from dual;

GET_SYSTEM_CHANGE_NUMBER

------------------------

3033857

16:14:14 SQL>delete from scott.test03;

已删除14行。

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

未选定行

16:14:30 SQL>commit;

提交完成。

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

未选定行

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

闪回完成。

16:14:56 SQL>select * from scott.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。

17:00:01 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 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 SQL>spool off;

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

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