SQL> shutdown immediate
数据库已经关闭。
已经卸载数据库。
ORACLE 例程已经关闭。
SQL> startup mount;
ORACLE 例程已经启动。
Total System Global Area 167772160 bytes
Fixed Size 1247900 bytes
Variable Size 104858980 bytes
Database Buffers 58720256 bytes
Redo Buffers 2945024 bytes
数据库装载完毕。
SQL> select flashback_on from v$database;
FLASHBACK_ON
------------------
NO
SQL> alter database flashback on ;
数据库已更改。
SQL> select log_mode from v$database;
LOG_MODE
------------
ARCHIVELOG
SQL> select archiver from v$instance;
ARCHIVE
-------
STARTED
SQL> alter database open
2 ;
数据库已更改。
SQL> select flashback_on from v$database;
FLASHBACK_ON
------------------
YES
SQL> set time on
12:05:27 SQL> set linesize 300
12:05:35 SQL> select *from V$flashback_database_log;
OLDEST_FLASHBACK_SCN OLDEST_FLASHBA RETENTION_TARGET FLASHBACK_SIZE ESTIMATED_FLASHBACK_SIZE
-------------------- -------------- ---------------- -------------- ------------------------
2870987 29-12月-11 1440 8192000 0
12:05:37 SQL> set linesize 500
12:05:45 SQL> select *from V$flashback_database_log;
OLDEST_FLASHBACK_SCN OLDEST_FLASHBA RETENTION_TARGET FLASHBACK_SIZE ESTIMATED_FLASHBACK_SIZE
-------------------- -------------- ---------------- -------------- ------------------------
2870987 29-12月-11 1440 8192000 0
12:05:47 SQL> select * from v$flashback_database_stat;
BEGIN_TIME END_TIME FLASHBACK_DATA DB_DATA REDO_DATA ESTIMATED_FLASHBACK_SIZE
-------------- -------------- -------------- ---------- ---------- ------------------------
29-12月-11 29-12月-11 4104192 761856 3570688 0
12:06:05 SQL> select * from V$sgastat where name like 'flashback%';
POOL NAME BYTES
------------ -------------------------- ----------
shared pool flashback generation buff 3981204
12:06:31 SQL> select object_name from dba_objects where owner='TINA';
OBJECT_NAME
--------------------------------------------------------------------------------------------------------------------------------
CREATE_DATE_LOG_ROW
12:17:02 SQL>
12:17:40 SQL> drop user tina cascade;
用户已删除。
12:18:01 SQL> select object_name from dba_objects where owner='TINA';
未选定行
12:18:09 SQL> shutdown immediate;
数据库已经关闭。
已经卸载数据库。
ORACLE 例程已经关闭。
12:19:12 SQL> startup mount;
ORA-32004: obsolete and/or deprecated parameter(s) specified
ORACLE 例程已经启动。
Total System Global Area 167772160 bytes
Fixed Size 1247900 bytes
Variable Size 109053284 bytes
Database Buffers 54525952 bytes
Redo Buffers 2945024 bytes
数据库装载完毕。
12:20:51 SQL> flashback database to timestamp to_timestamp('2011-12-29 12:17:40','yyyy-mm-dd hh24:mi:ss');
闪回完成。
12:21:57 SQL> alter database open read only;
数据库已更改。
12:22:08 SQL> select object_name from dba_objects where owner='TINA';
OBJECT_NAME
--------------------------------------------------------------------------------------------------------------------------------
CREATE_DATE_LOG_ROW
12:22:39 SQL> shutdown immediate
数据库已经关闭。
已经卸载数据库。
ORACLE 例程已经关闭。
12:23:25 SQL> ;
1* select object_name from dba_objects where owner='TINA'
12:23:25 SQL> startup
ORA-32004: obsolete and/or deprecated parameter(s) specified
ORACLE 例程已经启动。
Total System Global Area 167772160 bytes
Fixed Size 1247900 bytes
Variable Size 109053284 bytes
Database Buffers 54525952 bytes
Redo Buffers 2945024 bytes
数据库装载完毕。
ORA-01589: 要打开数据库则必须使用 RESETLOGS 或 NORESETLOGS 选项
12:23:48 SQL> alter database open resetlogs;
数据库已更改。
12:25:40 SQL> select object_name from dba_objects where owner='TINA';
OBJECT_NAME
--------------------------------------------------------------------------------------------------------------------------------
CREATE_DATE_LOG_ROW
转载于:https://www.cnblogs.com/lovemail/archive/2011/12/30/2306920.html