Gene,
I presume you are running on unix. I have encountered a similar
situation several times. When the database is opened, several background
processes, including CKPT, acquire locks on each datafile. Even though
you moved/renamed the file, the file handle is kept by the background
process. It now points to the new file, since you did not close the
file. Try to query against data in the datafile and you will get an
error, because the foreground process attempts to open the file, which
it cannot find.
--
Daniel W. Fink
http://www.optimaldba.com
Gurelei wrote:
>Hi all:
>
>I have been testing backups against Oracle9 db.
>I have renamed a datafile from file.dbf to file.dbf2.
>Then I ran a checkpoint expecting it to fail, but it
>didn't. I have done that several time without getting
>any warning from checkpoint. I though that checkpoint
>should 'touch" all the datafile and notice that one
>of them is missing. am I wrong?
>
>thanks
>
>Gene
>
>__________________________________
>Do you Yahoo!?
>The New Yahoo! Search - Faster. Easier. Bingo.
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>
>
--
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--
Author: Daniel W. Fink
INET: optimaldba_at_yahoo.com
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Received on Thu May 08 2003 - 16:23:35 CDT
