Logical transactions and serializability
Abstract: "The concept of logic databases can serve as a clear and expressive foundation of various kinds of information systems. However, classical logic languages refer to a single database state, whereas in modern information systems it is necessary to take dynamic behaviour into account. Fo...
Gespeichert in:
1. Verfasser: | |
---|---|
Weitere Verfasser: | , |
Format: | UnknownFormat |
Sprache: | eng |
Veröffentlicht: |
Passau
1998
|
Schriftenreihe: | Universität <Passau> / Fakultät für Mathematik und Informatik: MIP
1998,07 |
Schlagworte: | |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | Abstract: "The concept of logic databases can serve as a clear and expressive foundation of various kinds of information systems. However, classical logic languages refer to a single database state, whereas in modern information systems it is necessary to take dynamic behaviour into account. For this purpose, several update languages have been proposed, among them [AHV95, BK94, BK96, Che97, LHL95, MW88, MBM97, WF97a], which allow to specify complex transitions from one database state to another. From the evaluation point of view, a complex state transition can and should be considered as a transaction. Up to now, the isolation property of transactions has been poorly addressed in the context of logic update languages, although it is an important problem even for classical, sequential transactions (see [BHG87] for instance). In this paper we present the ULTRA approach and describe how isolation of independent transactions can be supported. We illustrate the results using an extended example." |
---|---|
Beschreibung: | 47, 5 S. |