Re: Purpose of having bdump, udump and cdump?

ericlaiys wrote:
> hi,
> what is the purpose of having bdump, udump and cdump?
>
> Lastly, when do i need to use the trace file?
>

BDUMP, UDUMP, and CDUMP are directories pointed to by the BACKGROUND_DUMP_DEST, USER_DUMP_DEST, and CORE_DUMP_DEST initialization parameters, respectively. Any user trace files are stored in UDUMP. Any trace files made by background processes are stored in BDUMP. Any core dump trace files are stored in CDUMP. You need these files to diagnose problems with your database.

Some of the questions you are posting are rather basic questions which are answered if you would please take the time to read the Oracle documentation for your version. Go to http://tahiti.oracle.com and follow the link for your specific version. Then read the Oracle Administrator's Guide and the Oracle Concepts Guide. These are a great place to start.

Cheers,
Brian

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Brian Peasland
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