Logo image
Back
A note on "Incomplete relational database models based on intervals"
Journal article   Peer reviewed

A note on "Incomplete relational database models based on intervals"

Jui-Shang Chiu and Arbee L. P. Chen
IEEE Transactions on Knowledge and Data Engineering, Vol.8(1), pp.189-191
1996
DOI: https://doi.org/10.1109/69.485648

Abstract

Disjunctive information Extended relational algebra Extended relational model Incomplete information Null values Information Systems Computer Science Applications Computational Theory and Mathematics
In [5], a family of relational database models (M-1 to M-5) were proposed to represent unknown values by intervals. Relational operators were extended for evaluating queries on these models. In this note, we stultify the theorems claiming that query evaluation in models M-2, M-3, and M-5 is sound. ©1996 IEEE.

Metrics

1 Record Views

Details

Logo image