The Problem of Incomplete Information in Relational Databases
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Beschreibung
A null value in a relational database represents missing information. This monograph analyses the problems raised by allowing null values in relational databases. Semantical, syntactical, and computational aspects are covered.
Autor*in
Gösta Grahne
Themen in »The Problem of Incomplete Information in Relational Databases«
Abfragenauswertunge Abhängigkeiten Aktualisierungen Incomplete Information Query Evaluation Relational Databases Relationale Datenbanken Unvollständige Information Updates algorithm algorithms complexity database relational database algorithm analysis and problem complexity