Answering queries using views
Author(s)
Bibliographic Information
Answering queries using views
（Synthesis lectures on data management, #46）
Morgan & Claypool, c2018
- : pbk
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Note
Bibliography: p. 201-213
Description and Table of Contents
Description
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.
Table of Contents
Preface
Acknowledgments
Queries and Views
Query Containment and Equivalence
Finding Equivalent Rewritings
Maximally Contained Rewritings (MCRs)
Answering Queries in Presence of Dependencies
Answering Queries in Data Exchange
Answering Queries Using Views
Bibliographical Notes
Conclusion
Bibliography
Authors' Biographies
by "Nielsen BookData"