I *swear* one of these days I'm going to learn Perl. :)
I rarely have to use utl_file, or dbms_output for that matter. I will
definitely be downloading that file from hotsos.com
- Cary Millsap <cary.millsap_at_hotsos.com> wrote:
> Any time you consider using utl_file, realize that utl_file has some
> really
> serious problems of its own:
>
> - It is extremely inefficient. Every time there's a newline in the
> input
> stream, utl_file terminates and sends a packet. So a
> couple-dozen-byte
> heading, like "My Report\n\nSubtititle\n\n" ends up consuming four
> whole
> packets. As a result, utl_file is extremely slow. It scales poorly
> too, with
> respect to the number of users who can use the thing concurrently,
> because
> of the unnecessary load it puts onto your network (see "Scalability
> is a
> Rate of Change" at www.hotsos.com/catalog to understand what I mean
> by
> "scales poorly").
>
> - There's a pretty serious functional design flaw, too. If there are
> more
> than some fixed number of characters between newlines (I think it's
> around
> 32KB), then the function will throw an error and not send the data.
>
> I got around both problems by writing a Perl program called trcfiled
> (trace
> file daemon), which you can obtain for free at
> www.hotsos.com/products/sparky/userguide. It's open source so you can
> see
> exactly what you'll be putting on your system. I think you'll find
> its
> performance to be between 100x and 1000x faster than utl_file.
>
>
> Cary Millsap
> Hotsos Enterprises, Ltd.
> http://www.hotsos.com
>
> Upcoming events:
> - Hotsos Clinic 101 in London, Reykjavik, Ottawa, Dallas, Washington,
> Denver, Sydney
> - Visit www.hotsos.com for schedule details...
> - IOUG-A Live 2003, Orlando, 10am Monday 28 April: "Oracle
> Operational
> Timing Data"
>
> -----Original Message-----
> Carmichael
> Sent: Thursday, April 24, 2003 5:42 AM
> To: Multiple recipients of list ORACLE-L
>
> look into using utl_file instead.
>
>
> --- sam d <sam_orafan_at_yahoo.com> wrote:
> > Hi people,
> > We have a .sql which runs in sqlplus.
> > This .sql calls the StoreProc.
> > These storeprocs have dbms_output.put_line
> > statement which are logged using spool command in
> > sqlplus.
> >
> > Now the problem is even after setting max limit
> > for dbms_output.enable(1000000) , there is a
> > error "ORA-20000: ORU-10027: buffer overflow, limit of
> > 1000000 bytes" .
> >
> > any workaround to this.
> > we want to log all the dbms_output.put_line messages.
> >
> > Thx
> > Sam
> >
> >
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> __________________________________________________
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> Author: Rachel Carmichael
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>
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> San Diego, California -- Mailing list and web hosting services
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> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
> --
> Author: Cary Millsap
> INET: cary.millsap_at_hotsos.com
>
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> San Diego, California -- Mailing list and web hosting services
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Do you Yahoo!?
The New Yahoo! Search - Faster. Easier. Bingo
http://search.yahoo.com
--
Please see the official ORACLE-L FAQ: http://www.orafaq.net
--
Author: Rachel Carmichael
INET: wisernet100_at_yahoo.com
Fat City Network Services -- 858-538-5051 http://www.fatcity.com
San Diego, California -- Mailing list and web hosting services
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Received on Thu Apr 24 2003 - 12:51:46 CDT
