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ACM Annual Conference 1974
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HQL; A set-oriented transaction language for hierarchically-structured data bases

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Abstract

The Hierarchic Query Language (HQL) is a sophisticated query language designed to give "non-programmers" convenient access to the data contained within an IMS-like hierarchic data base. In this paper we outline a particular perception of transactions against collections of data arranged in a hierarchic structure, and show how that perception might be reflected in the syntax and semantics of a user-oriented query language.

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ACM Annual Conference 1974

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