Deprecated: $wgMWOAuthSharedUserIDs=false is deprecated, set $wgMWOAuthSharedUserIDs=true, $wgMWOAuthSharedUserSource='local' instead [Called from MediaWiki\HookContainer\HookContainer::run in /var/www/html/w/includes/HookContainer/HookContainer.php at line 135] in /var/www/html/w/includes/Debug/MWDebug.php on line 372
A foundation of CODD's relational maybe-operations - MaRDI portal

A foundation of CODD's relational maybe-operations

From MaRDI portal

Publication:3323314

Jump to:navigation, search

DOI10.1145/319996.320014zbMath0537.68099OpenAlexW2167272239MaRDI QIDQ3323314

Joachim Biskup

Publication date: 1983

Published in: ACM Transactions on Database Systems (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1145/319996.320014

zbMATH Keywords

relational database relational algebra predicate logic information content adequacy null values update operations possible models maybe-tuples restrictedness semantics of relational query languages stored tuples

Mathematics Subject Classification ID

Abstract data types; algebraic specification (68Q65) Artificial intelligence (68T99) Information storage and retrieval of data (68P20)

Related Items (3)

Aggregate operations in the information source tracking method ⋮ A paraconsistent relational data model ⋮ Approximate reasoning by analogy to answer null queries

This page was built for publication: A foundation of CODD's relational maybe-operations

Retrieved from "https://portal.mardi4nfdi.de/w/index.php?title=Publication:3323314&oldid=16554199"