Title

A Relational-Calculus Query Language For Historical Databases

Keywords

Boolean operators; Historical databases; Query languages; Relational user interfaces; Relational-calculus; Temporal logic

Abstract

In this paper, an approach to handle time in relational query languages is outlined. The approach is based on extending Boolean and comparison operators by allowing their operands to be sets of intervals. The proposed temporal logic is shown to satisfy the properties of the normal Boolean logic. A relational-calculus query language using the extended logic is developed. The extended logic presented in this paper provides a good degree of flexibility in expressing different temporal requirements and therefore promises to be a successful approach for designing powerful temporal query languages. © 1992.

Publication Date

1-1-1992

Publication Title

Computer Languages

Volume

17

Issue

3

Number of Pages

185-197

Document Type

Article

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/0096-0551(92)90028-L

Socpus ID

0026897874 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0026897874

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