Re: doubt in INDEX

2002-09-01 Thread Rajesh Dayal

Dear "Guess Who",

   I don't think so.
   BTW, who are the "people" and why do they think so, we would love to see their 
explanation/theory.
   There could be several possibilities for having the rowids changed, like 
Exporting and Importing the tables, Moving the tables to diff T.S etc. 
   Other ideas are welcome ...

HTH,
Rajesh


- Original Message -
Date: Sun, 01 Sep 2002 20:13:21 -0800
To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]>


> 1.)
> People are saying that if a table is indexed then the all the 
> rowids will be changed , whether it is trueIf so , then how it 
> is done , give example please.
> 
> 2.)What are all the ways for the rowids to be changed
> 
> Explain.
> 
> Regards,
> Prakash.
> 
> 
> 
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> Author: guess who
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Author: Rajesh Dayal
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Re: doubt in INDEX

2002-09-01 Thread Mladen Gogala

Creat index will not change rowids. Rowids are not easily changeable. 
Here are the evil ways of changing rowids:

a) alter table move ..
b) Update moves the row from one partition to another.
c) Update of the cluster key moves the row from one cluster block to another.
d) Update of the primary key in an IOT (there are complications with IOT,
   so people should generally use urowid. If you are enableing constraints, you 
   should generally use $ORACLE_HOME/rdbms/admin/utlexpt1.sql to create the exceptions 
   table, so tthat EXCEPTIONS table is created with urowid)
e) export/truncate/import

Creating index does not change rowid. 

On 2002.09.02 00:13 guess who wrote:
> 1.)
> People are saying that if a table is indexed then the all the 
> rowids will be changed , whether it is trueIf so , then how it 
> is done , give example please.
> 
> 2.)What are all the ways for the rowids to be changed
> 
> Explain.
> 
> Regards,
> Prakash.
> 
> 
> 
> -- 
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> -- 
> Author: guess who
>   INET: [EMAIL PROTECTED]
> 
> Fat City Network Services-- (858) 538-5051  FAX: (858) 538-5051
> San Diego, California-- Public Internet access / Mailing Lists
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> To REMOVE yourself from this mailing list, send an E-Mail message
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> also send the HELP command for other information (like subscribing).
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Mladen Gogala
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RE: doubt in INDEX

2002-09-01 Thread Naveen Nahata

Prakash,

Though i don't remember fully, but the ROWID consists of the Block Address,
DataFile and other info.

Rowid's change when the row is migrated to a different location.

Since creating index doesn't migrate the row, if the table is indexed the
rowid's wont change.

Naveen

-Original Message-
Sent: Monday, September 02, 2002 9:43 AM
To: Multiple recipients of list ORACLE-L


1.)
People are saying that if a table is indexed then the all the 
rowids will be changed , whether it is trueIf so , then how it 
is done , give example please.

2.)What are all the ways for the rowids to be changed

Explain.

Regards,
Prakash.



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Author: guess who
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Author: Naveen Nahata
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