Re: about upload function

xietao wrote:

> 3)use Z39.50 Extened-Services. But write MARC records to a database, or
> overwrite(delete) MARC records in database, has not been defined in
> Extended-Service yet.

As concerns "write MARC records" this is just as well-defined as retrieval of
MARC records:  Writing MARC records was essentially the purpose in mind when the
database update Extended Service was conceived. Looking at the ASN.1 for
ESFormat-Update, within TaskPackageRecordStructure : recordOrSurDiag : record --
that's where the MARC record would go (encoded as an external, with an OID to
identify it as a MARC record).

As concerns "overwrite (delete) MARC records",  Ralph's advice is good:

"LeVan,Ralph" wrote:

> ... look at the Union Catalog
> Profile developed in New Zealand/Australia.
> http://lcweb.loc.gov/z3950/agency/profiles/ucp.doc. .
>

--
Ray Denenberg
Library of Congress
rden@loc.gov
202-707-5795

Received on Thursday, 21 September 2000 13:07:25 UTC