RE: Rowid

From: Amar Kumar Padhi <TS2017_at_emirates.com>
Date: Sat, 14 Sep 2002 03:03:19 -0800
Message-ID: <F001.004D0265.20020914030319@fatcity.com>

RE: Rowid

IMHO, Renaming a table will not change the rowid.

rgds
amar
http://amzone.netfirms.com

-----Original Message-----
From: Fink, Dan [mailto:Dan.Fink@mdx.com]
Sent: Thursday, September 12, 2002 8:48 PM
To: Multiple recipients of list ORACLE-L
Subject: RE: Rowid

Actually, the rowid will not change when a row is migrated. The original
rowid is preserved (for indexing purposes) with a pointer to the new row.
The rowid referenced by functions will be the original rowid.

I performed a test about a year ago that covered this scenario. I found that
when you read a row and extract the rowid, the rowid was always the
original, even if the row had migrated. In looking at the block dump, I
could see the pointer to the new location, but that rowid was not 'visible'
to the query.

Rowids should change if you recreate the table (export/import or
copy/rename). I presume the 9i online table redefinition will do the same
thing, but I have not tried it...yet

Dan

-----Original Message-----
Sent: Thursday, September 12, 2002 6:28 AM
To: Multiple recipients of list ORACLE-L

When the row is moved to another block.

Yechiel Adar
Mehish
----- Original Message -----
To: Multiple recipients of list ORACLE-L <ORACLE-L@fatcity.com>
Sent: Thursday, September 12, 2002 5:28 AM

> what are the cases for a rowid to be changed ?
>
> Regards,
> Prakash.
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author: guess who
>   INET: yours_in@rediffmail.com
>
> Fat City Network Services    -- (858) 538-5051 FAX: (858) 538-5051
> San Diego, California        -- Public Internet access / Mailing Lists
> --------------------------------------------------------------------
> To REMOVE yourself from this mailing list, send an E-Mail message
> to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in
> the message BODY, include a line containing: UNSUB ORACLE-L
> (or the name of mailing list you want to be removed from). You may
> also send the HELP command for other information (like subscribing).

--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Yechiel Adar
INET: adar76@inter.net.il

Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
San Diego, California -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru@fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Fink, Dan
INET: Dan.Fink@mdx.com

-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.com
-- 
Author: Amar Kumar Padhi
  INET: TS2017_at_emirates.com

Fat City Network Services    -- (858) 538-5051  FAX: (858) 538-5051
San Diego, California        -- Public Internet access / Mailing Lists
--------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from).  You may
also send the HELP command for other information (like subscribing).

Received on Sat Sep 14 2002 - 06:03:19 CDT