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Time based Recovery to recover a dropped table [message #163153] Wed, 15 March 2006 03:05 Go to next message
gajini
Messages: 262
Registered: January 2006
Senior Member
To learn time based recovery to recover a dropped table practically,i did the following.

SQL> create table emp(id number)

Table created.

SQL> insert into emp values(1);

1 row created.

SQL> commit;

Commit complete
.

I dropped the table at March 15,2006-2:25P.M.

SQL> drop table emp;

Table dropped.


To do time based recovery,I shutdown the database..

SQL> shutdown
Database closed.
Database dismounted.
ORACLE instance shut down.


Then,i mount the database..

SQL> startup mount

Then,i issued the following command,to do time based recovery & to recover the table..

SQL> RECOVER DATABASE UNTIL TIME '2006-04-15:02:20:00';
Media recovery complete.


Since i recovered the database to the time 2:20P.M,the dropped table EMP should be there now,but when i tried to look at the table,it shows the table doen't exist,

SQL> SELECT * FROM EMP;
SELECT * FROM EMP
*
ERROR at line 1:
ORA-00942: table or view does not exist


My questions are,

1)Why the table "EMP" is not recovered?

2)Did i do anything wrong while doing the time based recovery?

3) If the procedure i followed to do time based recovery is wrong,can anyone explain me,how to do this & recover a dropped table?


Thanks,
Malru
Re: Time based Recovery to recover a dropped table [message #163379 is a reply to message #163153] Thu, 16 March 2006 08:58 Go to previous messageGo to next message
croK
Messages: 170
Registered: April 2002
Senior Member
It does not work like that.
Correct me if I'm wrong:
you simply drop the table then issued RECOVER DATABASE statement?.

I believe you will need to restore ALL datafiles from previous backup, then startup nomount, then RECOVER DATABASE UNTIL TIME to previous moment when table was dropped.

I believe it works that way.
Best luck.
Re: Time based Recovery to recover a dropped table [message #163498 is a reply to message #163153] Thu, 16 March 2006 23:04 Go to previous message
gajini
Messages: 262
Registered: January 2006
Senior Member
Hi croK,

Thanks for your idea,it's working now,i recovered a dropped table.

Thanks,
Malru
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