Bill Dueber writes:
> > What are the ways to accomplish exact title searches with z39.50?
> > I'm looping through a list of MARC records trying to determine
> > whether or not we own multiple copies of an item. After reading
> > MARC field 245, subfield a I am creating the following z39.50
> > query:
> > @attr 1=4 "foo bar"
> > Unfortunately my local implementation seems to interpret this in
> > a rather regular expression sort of way -- "* foo bar *". Does
> > anybody out there know how to create a more exact query? I only
> > want to find titles exactly equalling "foo bar".
> Like so many library "standards," z30.50 is a syntax and a set of
> rough guidelines. You have no idea what's actually happening on the
> other end, because it's not specified, and you just have to either
> find someone you can ask at the target machine or reverse engineer
The irony is that Z39.50 actually make _much_ more effort to specify
semantics than most other standards -- and yet still finds itself in
the situation where many implementations do not respond correctly to
the BIB-1 attribute 6=3 (completeness=complete field) which is how
Eric should be able to do what he wants here.
Not that I have any good answers to this problem ... but I DO know
that inventing more and more replacement standards it NOT the answer.
Everything that's come along since Z39.50 has suffered from exactly
the same problem but more so.
/o ) \/ Mike Taylor <[log in to unmask]> http://www.miketaylor.org.uk
)_v__/\ "Not raw -- cooked" -- Monty Python's Flying Circus.