Exclusive Disjunctions in Indefinite and Maybe Information in Relational Databases

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Turkish Journal of Electrical Engineering and Computer Science
Volume:7 Issue:1-3
Exclusive Disjunctions in Indefinite and Maybe Information in Relational Databases

Exclusive Disjunctions in Indefinite and Maybe Information in Relational Databases

Authors : Taflan İ GÜNDEM

Pages : 29-38

View : 13 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Incorporating indefinite information into databases has been studied extensively. In this paper, we propose a structure called an E-table to represent maybe information and inclusive and exclusive disjunctions. We define the type of redundancies in E-tables and show how to eliminate them. Also we present an extended relational algebra to operate on E-tables. In this paper we expand the concepts and operations defined by Lin and Sunderraman [1] in order to accommodate exclusive disjunctions in relational databases.
Keywords : Turk J Elec Eng Comp Sci, 7, 1999, 29 38 Turk J Elec Eng Comp Sci, vol 7, iss 1 3

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