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SRU and CQL Ralph LeVan Senior Research Scientist OCLC.

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Presentation on theme: "SRU and CQL Ralph LeVan Senior Research Scientist OCLC."— Presentation transcript:

1 SRU and CQL Ralph LeVan Senior Research Scientist OCLC

2 The Basics REST-ful API for Search and Retrieve CQL – A rich, standardized query grammar Self-describing service through Explain records

3 REST-ful API for Search and Retrieve Base URL: http://worldcat.org/identities/search/Identitieshttp://worldcat.org/identities/search/Identities Querystring: query=local.Name+all+%22ralph+levan%22 Important Optional Parms: startRecord maximumRecords recordSchema

4 REST-ful API for Search and Retrieve Untrustworthy Optional Parms: sortKeys

5 REST-ful API for Search and Retrieve Amusing Parms: recordPacking

6 REST-ful API for Search and Retrieve Omittable Mandatory Parms: version operation

7 CQL Standard Boolean operations Search Terms: [Index relation] quotedString query=dog query=cql.any exact moby dick Indexes defined by server Standard relations: exact, =, all, any

8 searchRetrieveResponse

9 searchRetrieveResponse elements 1.1 3 6dsxzt 300...

10 record elements info:srw/schema/1/Identities xml... 1

11 Explain 1.1 http://explain.z3950.org/dtd/2.0/ xml

12 Explain Record …

13 indexInfo local.BirthDate BirthDate any

14 schemaInfo Identities records in their native format

15 configInfo 250 10 info:srw/schema/1/Identities

16 Links http://www.loc.gov/standards/sru/


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