使用Oracle10g新特性,跨越Resetlogs时间点进行恢复
2007-07-24 12:34:40 来源:WEB开发网核心提示: 2.进行数据更改$ sqlplus "/ as sysdba"SQL*Plus: Release 10.1.0.2.0 - Production on Tue Apr 5 16:32:23 2005Copyright (c) 1982, 2004, Oracle.All
2.进行数据更改
$ sqlplus "/ as sysdba"
SQL*Plus: Release 10.1.0.2.0 - Production on Tue Apr 5 16:32:23 2005
Copyright (c) 1982, 2004, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.1.0.2.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
SYS AS SYSDBA on 2005-04-05 16:32:23 >alter system switch logfile;
System altered.
SYS AS SYSDBA on 2005-04-05 16:32:30 >select count(*) from t;
COUNT(*)
----------
18956
SYS AS SYSDBA on 2005-04-05 16:33:03 >insert into t select * from t;
18956 rows created.
SYS AS SYSDBA on 2005-04-05 16:33:17 >commit;
Commit complete.
SYS AS SYSDBA on 2005-04-05 16:33:19 >alter system switch logfile;
System altered.
SYS AS SYSDBA on 2005-04-05 16:33:45 >truncate table t;
Table truncated.
SYS AS SYSDBA on 2005-04-05 16:34:58 >alter system switch logfile;
System altered.
此时的日志序列情况如下:
SYS AS SYSDBA on 2005-04-05 16:35:00 >select * from v$log_history where recid >1811;
RECID STAMP THREAD# SEQUENCE# FIRST_CHANGE# FIRST_TIME NEXT_CHANGE# RESETLOGS_CHANGE# RESETLOGS_TIME
---------- ---------- ---------- ---------- ------------- ------------------- ------------ ----------------- -------------------
1812 554813757 1 1 10923677 2005-04-05 09:54:53 10925720 10923677 2005-04-05 09:54:53
1813 554813974 1 2 10925720 2005-04-05 10:55:57 10925827 10923677 2005-04-05 09:54:53
1814 554823464 1 3 10925827 2005-04-05 10:59:34 10947409 10923677 2005-04-05 09:54:53
1815 554828646 1 4 10947409 2005-04-05 13:37:44 10950318 10923677 2005-04-05 09:54:53
1816 554833748 1 5 10950318 2005-04-05 15:04:06 10953123 10923677 2005-04-05 09:54:53
1817 554833901 1 6 10953123 2005-04-05 16:29:08 10953187 10923677 2005-04-05 09:54:53
1818 554833950 1 7 10953187 2005-04-05 16:31:41 10953213 10923677 2005-04-05 09:54:53
1819 554834005 1 8 10953213 2005-04-05 16:32:30 10953633 10923677 2005-04-05 09:54:53
1820 554834118 1 9 10953633 2005-04-05 16:33:25 10953726 10923677 2005-04-05 09:54:53
9 rows selected.
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