Event-Oriented Data Models and Temporal Queries in Transaction ...

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Écrit par
Jim Callan , The New York Public Library

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orzi

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177

pages

English

Documents

Lire

Le téléchargement nécessite un accès à la bibliothèque YouScribe Tout savoir sur nos offres

Publié par

orzi

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English

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2 Mo

cours magistral - matière potentielle : notes
exposé
revision - matière potentielle : briefly

Event-Oriented Data Models and Temporal Queries in Transaction-Time Databases Carlo Zaniolo University of California, Los Angeles Abstract—Past research on temporal databases has primarily focused on state-based representations and on relational query language extensions for such representations. This led to many different proposals that had did not succeed in making a signif- icant impact on SQL-compliant DBMS. More recently however, there has been significant interest and progress on event se- quences, leading to vendor-proposed extensions of SQL standards for pattern queries based on Kleene-closure expressions.