Re: USMARC and postgresql?
От | Andrew Sullivan |
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Тема | Re: USMARC and postgresql? |
Дата | |
Msg-id | 20000509084416.B525@bpl.on.ca обсуждение исходный текст |
Ответ на | USMARC and postgresql? (kb2qzv@poczta.onet.pl) |
Ответы |
Re: USMARC and postgresql?
Re: USMARC and postgresql? Re: USMARC and postgresql? |
Список | pgsql-general |
On Tue, May 09, 2000 at 10:36:51AM +0100, kb2qzv@poczta.onet.pl wrote: > Hi everybody, > I am looking for some help on how to use postgresql to organize > MARC bibliographic records. I am a beginner. Are there any sites > or projects that have already been started? > > Perhaps anyone knows where to find a series of SQL statements > to create an usable database for holding bibliographic records > which would be USMARC compliant? This is way hard. The reason is simple: MARC allows all of the following: 1. Multiple instances of the same field. 2. Variable length of field. 3. Unpredictable numbers of completed fields. The commercial vendors of SQL-based library automation systems do this with BLOBs. It's a pain, though, because building the indices against the catalogue is difficult. I think, actually, that the PICK-based spproach is better, but PICK is going away. Anyway, you likely need to talk to someone about BLOBs. I can't help, sorry. -- Andrew Sullivan Computer Services <sullivana@bpl.on.ca> Burlington Public Library +1 905 639 3611 x158 2331 New Street Burlington, Ontario, Canada L7R 1J4
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