Re: Resize datafile questions

Hi,

There is an Oracle bug that can happen if the file was smaller than 2 gig but extended past 2 gig. Also, if you wanted to migrate the database to a different operating system that just plain can't handle files over 2 gig, you would have a problem. By migrate, I mean apart from using the export/import utility. I mean by copying the datafiles themselves. This is usually only an issue when copying the files is faster than the actual import... I don't think it applies to you, but you be the judge.

If it doesn't apply to you, just set your first datafile to not autoexend, and create a second datafile of 2 gig, also not to auto-extend. If you think you'll use it too quickly, create a third 2 gig file.

The compress option on export does not compress the export file. It tells Oracle to remove / ignore all blank space in extents that might be there for row updates, and it tells the import utility to cram all the data into one large extent upon import. If your database is small you'll probably never feel the pain. But this can cause performance and space management issues.

Best regards,
db
<ITAPORT06> wrote in message news:407ee174.5383070_at_news.hccnet.nl...
> Oracle 8.1.7.4 WINNT NTFS
>
> I have a datafile of 2.4 GB.
> I have read articles about max size of a datafile. It is still not
> clear to me what is safe or not.
>
> I have the idea to create an aditional datafile
> Data file 1 (Which currently 2.4GB )Bring it back to 2GB
> Data file 2 (New) 2.GB
>
> Resizing I want to do by export - drop user - import (shall I make use
> of compress?
>
> The current datafile has increase unlimited. In the new situation I
> want to make Data file 1 max 2GB and the additional Data file 2
> Unlimited (in case of)
> Does this make any sense or not or should I forget resizing of the
> datafile and let it grow till 4 GB
> Thanks
>
>
>
>
Received on Thu Apr 15 2004 - 17:37:48 CDT