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On 5/8/09, Xiaoming Liu <[log in to unmask]> wrote: > On Fri, May 8, 2009 at 3:08 PM, Jonathan Rochkind <[log in to unmask]> wrote: > >> I wonder how xID handles superceded OCLCnums, if it'll still succesfully >> find the right matches for you? >> > > This is documented in > http://xisbn.worldcat.org/xisbnadmin/xoclcnum/api.htm#deleted > > > "Worldcat uses OCLC Control Number Cross-Reference to track deleted OCLC > numbers. When an OCLC number is deleted, it's still search-able from this > service. In the response, we use presentOclcnum to specify present OCLC > number. For example 2416076 was merged into 24991049, a request of the > deleted number 2416076 will return: > > <rsp xmlns="http://worldcat.org/xid/xoclcnum/" stat="ok"> > <oclcnum lccn="34025476" presentOclcnum="24991049">2416076</oclcnum> > </rsp> > > > The presentOclcnum field is omitted when an OCLC number is active, so > request to current OCLC number 24991049 returns: > > <rsp xmlns="http://worldcat.org/xid/xoclcnum/" stat="ok"> > <oclcnum lccn="34025476" >24991049</oclcnum> > </rsp> > > > Xiaoming > > > >> >> >> Ray Denenberg, Library of Congress wrote: >> >>> From: "Eric Lease Morgan" <[log in to unmask]> >>> >>> >>>> 1. What MARC field/subfield might I put this string? >>>> 2. How would I go about getting the string indexed? >>>> 3. How might I go about querying the server for records with this >>>> string? >>>> >>>> >>> >>> I can at least talk about the third question. There was work on a marc >>> attribute set, though not completed. If you look at the oid register at >>> http://www.loc.gov/z3950/agency/defns/oids.html you'll see that the >>> latest work on it (second draft) was in 2000, >>> http://www.nlc-bnc.ca/iso/z3950/MARC_attribute_set_2.doc. So if someone >>> actually wanted to put it to use it would have to be completed. >>> >>> For SRU there is a complete marc context set, >>> http://www.loc.gov/standards/sru/resources/marc-context-set.html. >>> >>> --Ray >>> >>> >>> >> >