Re: [Jzjkit-user] Retrieving data from Z39.50 servers at registry.gsdi.org

[Ian I. <ian...@k-...>]

Wow, that's a pretty neat resource, and a new one on me, I'll have a 
play later on :)

In terms of your query tho....

A normal script would be somerhing like


open fully.qual.host.name:210
base DATABASENAME1 DATABASENAME2 DATABASENAME3
elements f
format grs-1
find @attrset bib-1 @attr 1=4 Title @attr gils 1=2042 Place
show 1+10



--- Explanation
open fully.qual.host.name:210
- Open a connection
base DATABASENAME1 DATABASENAME2 DATABASENAME3
- Specify which database we want to search
elements f
- What kind of records we want back ("f"ull rather than "b"rief in this 
case)
format grs-1
- What format we want those full records back in (grs-1 is the most 
common choice for gils targets, other ones to try are "sutrs", "xml" and 
the bib formats such as "usmarc")
find @attrset bib-1 @and @attr 1=4 Title @attr gils 1=2042 Place
- The prefix query.. The archives should contain an description of a 
prefix query but see below for a bit of an explanation
show 1+10
- Show 10 records starting from position 1


About Prefix Queries

Roughly:

PrefixQuery ::= @attrset DEFAULT_ATTRSET Query
Query ::= AttrsPlusTerm | Boolean
Boolean ::= Op Query Query
Op ::= @and | @or | @not
AttrsPlusTerm ::= AttrDef+ term
AttrDef ::= @attr [NON-DEFAULT ATTRSET] ATTRTYPE=ATTRVAL
term ::= "QUOTED MULTI WORD STRING" | Word | 9999(number)


So a simple title search might be

find @attrset bib-1 @attr 1=4 "The Title"

You can use additional attributes to specify things like truncation, 
relation ( =, > <, fully enclosed (for spatial search), etc)

find @attrset bib-1 @attr 1=4 @attr 5=1 "The Title With Right Trunc"

Or you can use boolean operators


find @attrset bib-1 @or @or @attr 1=4 TitleA @attr 1=4 TitleB @attr 1=4 
TitleC

to Search for (TitleA or TitleB) or TitleC

Hope that helps a little. If you are getting error messages back or 
diagnostics from the server, post them to me privately, or to the list, 
or IM me with the details (Yahoo: ianibbo, MSN ian...@k-...) 
and I'll try and help sort them out. If you have specific queries, we 
can probably help you phrase them too, until you get the hang of the 
prefix notation.

Hope that helps a little.

Cheers,
Ian.


Jeff Yutzler wrote:
> I was checking out registry.gsdi.org and see that there are a bunch
> of sites that host Z39.50 data. I would like to use JZKit to retrieve
> the data in the catalogs. I have no problem connecting to them using
> ZClient, but I can't figure out how to actually retrieve any data. I
> have no experience with library catalog systems and randomly surfing
> the list archives has not been very revealing. Are there any test
> scripts that I can use as examples? If not, what is a good resource
> for learning how to construct record syntaxes, etc.?
> Regards,
> Jeff Yutzler
> 
> 
> 
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