TQuery: A Context-Sensitive Temporal Query Language

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Citation: Michael G. Kahn and Samson W. Tu and Lawrence M. Fagan. (1991) TQuery: A Context-Sensitive Temporal Query Language. In KSL-91-68, 1991.

Publication techreport ( Edit )
type Technical Report
bibtype techreport
Bibtex basics
author Michael G. Kahn and Samson W. Tu and Lawrence M. Fagan
title TQuery: A Context-Sensitive Temporal Query Language
number KSL-91-68
institution Knowledge Systems, AI Laboratory
year 1991
Bibtex more
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abstract Users of electronic medical databases request pertinent information by recasting their clinical questions into a formal database query language. Because the query language is the user's only access to the data, the query language must be powerful enough to enable users to express their data requirements. However, a competing need is for the query language to be restrictive enough so that the queries can have unambiguous semantics and the query processor can generate correct answers. We describe a query language, called TQuery, that was designed specifically to formulate database queries that are dependent on temporal and contextual relationships. TQuery specifications express contextual constraints without the need to explicitly reference calendar dates. TQuery is the database query language use to retrieve patient data from an object-oriented electronic patient medical-record system called the temporal network (TNET). TNET and TQuery were developed to support the real-time temporal reasoning and representation needs of a LISP workstation-based medical expert system.

KSL Technical Report ID: KSL-91-68
Facts about TQuery: A Context-Sensitive Temporal Query LanguageRDF feed
Abstract Users of electronic medical databases requ … Users of electronic medical databases request pertinent information by recasting their clinical questions into a formal database query language. Because the query language is the user's only access to the data, the query language must be powerful enough to enable users to express their data requirements. However, a competing need is for the query language to be restrictive enough so that the queries can have unambiguous semantics and the query processor can generate correct answers. We describe a query language, called TQuery, that was designed specifically to formulate database queries that are dependent on temporal and contextual relationships. TQuery specifications express contextual constraints without the need to explicitly reference calendar dates. TQuery is the database query language use to retrieve patient data from an object-oriented electronic patient medical-record system called the temporal network (TNET). TNET and TQuery were developed to support the real-time temporal reasoning and representation needs of a LISP workstation-based medical expert system. P workstation-based medical expert system.
Author Michael G. Kahn and Samson W. Tu and Lawrence M. Fagan  +
Bibtype techreport  +
Has author Michael G. Kahn and Samson W. Tu and Lawrence M. Fagan  +
Has identifier KSL-91-68  +
Has publishing details 1991  +
Has title TQuery: A Context-Sensitive Temporal Query Language  +
Has where published KSL-91-68  +
Has year 1991  +
Institution Knowledge Systems, AI Laboratory  +
Ksl tr id KSL-91-68  +
Number KSL-91-68  +
Process note YES  +
Title TQuery: A Context-Sensitive Temporal Query Language  +
Year 1991  +
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