Re: Changing DB_CACHE_SIZE to DB_BLOCK_BUFFERS

If you want to play safe, a better strategy might be:

    create pfile from spfile;

Then copy and edit the pfile (init.ora file) to make all the changes you need, rename the spfile, and restart the database.

Regards

Jonathan Lewis
http://www.oracle.com/technology/community/oracle_ace/ace1.html#lewis

The Co-operative Oracle Users' FAQ
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• Original Message ----- From: "J. Dex" <cemail_219_at_hotmail.com> To: <oracle-l_at_freelists.org> Sent: Wednesday, August 23, 2006 6:05 PM Subject: Changing DB_CACHE_SIZE to DB_BLOCK_BUFFERS

> After creation, can a database that was created using DB_CACHE_SIZE be changed
> to use DB_BLOCK_BUFFERS? We want to use AWE extended memory so I need to use
> DB_BLOCK_BUFFERS. Is this the correct way to make the changes?
>
> startup nomount
> ALTER SYSTEM SET USE_INDIRECT_DATA_BUFFERS=TRUE scope=spfile;
> ALTER SYSTEM SET DB_CACHE_SIZE = 0 scope=spfile;
> ALTER SYSTEM SET DB_BLOCK_BUFFERS = 524288 scope=spfile;
>
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