YOU WROTE >>>> William, Koha works best with Dewey. I think at this point it works ONLY with Dewey.... Hopefully soon it will work with both LC and Dewey! Ed!

Subj: RE: [Koha] LCCN, group Date: 9/5/2003 11:53:53 AM US Mountain Standard Time From: <A HREF="mailto:shedges@skemotah.com">shedges@skemotah.com</A> To: <A HREF="mailto:Bigwood@lpi.usra.edu">Bigwood@lpi.usra.edu</A> CC: <A HREF="mailto:koha@purity.com.ph">koha@purity.com.ph</A>, <A HREF="mailto:koha@lists.katipo.co.nz">koha@lists.katipo.co.nz</A> Sent from the Internet

Bigwood, David said:

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TK5105.888. D35 2000 is the Library of Congress Classification number. The 1st part goes into field 050 subfield a, D35 2000 goes in subfield b. If you use that as your call number it may also go in field 852, which contains local copy information.

005.7'2 --dc21 is the Dewey Classification number. The 1st part goes in field 082 subfield a. dc21 specifies which edition is being used and goes in subfield 2. If you use Dewey for your call numbers it would also go in field 852.

William, Koha works best with Dewey. You'll probably want to map the actual number part of the Dewey number to Koha field 'dewey' in the biblioitems table. In the same table, you can map anything that comes after the number (the first few letters of an author's name is a common example) to the 'subclass' field in the same table. And if you have anything before the number (like 'J' for Juvenile, or 'LP' for Large Print), that can go in the 'classification' field. I believe that's the way Horowhenua Library Trust (http://www.library.org.nz) does it.

In the case of Nelsonville Public Library, the actual call number used by the library was stored in a holdings tag, but in a 952 tag, not the 852 tag. Many ILS programs use the option of 9xx tags to store holdings information, because these tags are more flexible than the closely-regulated 852 tags. So at NPL (http://www.athenscounty.lib.oh.us) the entire call number was mapped to the 'classification' field as the data was migrated from the old system to Koha. I'm not sure how the call numbers at Unido (http://www.unido.org) are stored -- they may have used yet another method.

One word of warning -- if you decide to map the call number from an existing holdings tag, you will need to split the existing tag into two tags, so you can map one to the items table and the other to fields in the biblioitems table. This isn't too hard to do with MARC::Record.

By the way, the little ' in the Dewey number from LC (005.7'2) is not part of the number. It's an indication of the appropriate spot to truncate the call number if you don't want to use the whole thing.

-- Stephen Hedges Skemotah Solutions, USA www.skemotah.com -- shedges@skemotah.com

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The - is dropped from the LC Control number when it is entered in field 010.

Sincerely, David Bigwood bigwood@lpi.usra.edu Lunar &Planetary Institute Cataloging news: http://www.catalogablog