Answering Queries Using Views - Brossura

Afrati, Foto; Chirkova, Rada

Brossura

ISBN 10: 1681730316 ISBN 13: 9781681730318

Casa editrice: Morgan & Claypool, 2017

Riassunto

The topic of using views to answer queries has been popular for a few decades now, as it cuts across domains such as query optimization, information integration, data warehousing, website design, and, recently, database-as-a-service and data placement in cloud systems. This book assembles foundational work on answering queries using views in a self-contained manner, with an effort to choose material that constitutes the backbone of the research. It presents efficient algorithms and covers the following problems: query containment; rewriting queries using views in various logical languages; equivalent rewritings and maximally contained rewritings; and computing certain answers in the data-integration and data-exchange settings. Query languages that are considered are fragments of SQL, in particular, select-project-join queries, also called conjunctive queries (with or without arithmetic comparisons or negation), and aggregate SQL queries.

Dettagli dell'edizione

• Editore: Morgan & Claypool
• Data di pubblicazione: 2017
• Lingua: Inglese
• ISBN 10: 1681730316
• ISBN 13: 9781681730318
• Rilegatura: Copertina flessibile
• Numero di pagine: 235
• Redattore: Jagadish H. V.
• Contatto del produttore: non disponibile
• Persona responsabile: non disponibile