Oracle-L: RE: Point-In-Time recovery question, Non-RMAN solution

From: DENNIS WILLIAMS <DWILLIAMS_at_LIFETOUCH.COM>
Date: Thu, 06 Nov 2003 07:49:33 -0800
Message-ID: <F001.005D5D73.20031106074933@fatcity.com>

Rick

You are getting some good replies on your problem. Since you say that you are recovering the table from two days ago, I'm assuming you are recovering to a test server. On the precision of the recovery time, a lot depends on just how much precision you need. As Scott says, you can use Logminer to get extremely close. But maybe if you dropped the table two days ago, just sometime earlier than the drop will be close enough.

I also try to perform regular exports on all tables that aren't so large as to be unwieldly. Often when something comes up you can offer an export from a couple of days ago and that is good enough.

Dennis Williams
DBA
Lifetouch, Inc.
dwilliams_at_lifetouch.com

-----Original Message-----
Sent: Thursday, November 06, 2003 7:45 AM To: Multiple recipients of list ORACLE-L

Hi DBAs,

Oracle 8i, ArchiveLog, No RMAN
Testing Point-In-Time Recovery

I am confused on what time to substitute in the RECOVER DATABASE UNTIL TIME 'timestamp';

For example 2 days ago 11/04/2003 approximately 17:00 I drop a table. Today I decide I want that table back. I want to do an incomplete recovery to get the table back.
How do I know what timestamp to use? I have an idea the I dropped the table but not exact.

SHUTDOWN Normal
BACKUP current database
Restore datafile that has the table in it.
connect internal
startup mount
recover database until time 'timestamp??????';
Alter database open resetlogs;
BACKUP current database

Step 5 is my confusion.

Also I assume all data is now lost since last archive restored to the present.
The only way I know to get that data back is to

1. Export the table that was dropped.
2. Restore database from step2
3. Import table from step1

Is there better ways.

Thanks
Rick

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INET: Rick_Cale_at_teamhealth.com

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Author: DENNIS WILLIAMS
INET: DWILLIAMS_at_LIFETOUCH.COM

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