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A high-level functional query language for a small relational system

Hoyt D. Warner, David Odle

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Abstract

In this paper we describe the design and implementation of a high-level query language FQUERY which applies the concepts of the functional data model to the retrieval of information from relational databases created on a small PDP-11 system by the RISS relational system described in [Me]. We describe the query language and the functional data model and discuss the benefits they provide for the casual user in expressing queries in a conceptually natural manner.

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What this paper is about

In this paper we describe the design and implementation of a high-level query language FQUERY which applies the concepts of the functional data model to the retrieval of information from relational databases created on a small PDP-11 system by the RISS relational system described in [Me]. We describe the query language and the functional data model and discuss the benefits they provide for the casual user in expressing queries in a conceptually natural manner.

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Available abstract

In this paper we describe the design and implementation of a high-level query language FQUERY which applies the concepts of the functional data model to the retrieval of information from relational databases created on a small PDP-11 system by the RISS relational system described in [Me]. We describe the query language and the functional data model and discuss the benefits they provide for the casual user in expressing queries in a conceptually natural manner.

Key concepts: Computer science, Query language, Relational database, RDF query language, Casual, Data control language, Query optimization, Relational model

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