----- Original Message -----
Sent: Tuesday, October 22, 2002 10:49
AM
Subject: ROWID question?
Hello Gurus
Does Oracle reuse ROWID "numbers", once a delete of
a row has been done?
The reason I ask is because, I need to delete
duplicate records from a very large table.
However I must keep the newest date in one of the date columns.
If oracle does not reuse the ROWID this would be
very simple. Here is my sql:
DELETE FROM tablename a
WHERE ROWID <> (SELECT MAX(ROWID)
FROM
tablename b
WHERE
a.col1 = b.col1
AND a.col2
= b.col2
AND a.col3
= b.col3);
However if Oracle does reuse ROWID's then I have a
serious sql problem :)
All the examples I
have of deleteing duplicates use the ROWID.
If anyone has a suggestion on how else to do this I would be most
grateful.
Otherwise answer on my main question would be
fine.
Many Thanks
Denham Eva
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