Answering queries using views:
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 foundationa...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Elektronisch E-Book |
| Sprache: | English |
| Veröffentlicht: |
[San Rafael, California]
Morgan & Claypool Publishers
[2019]
|
| Ausgabe: | Second edition |
| Schriftenreihe: | Synthesis lectures on data management
#54 |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Zusammenfassung: | 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. This second edition includes two new chapters that refer to tree-like data and respective query languages. Chapter 8 presents the data model for XML documents and the XPath query language, and Chapter 9 provides a theoretical presentation of tree-like data model and query language where the tuples of a relation share a tree-structured schema for that relation and the query language is a dialect of SQL with evaluation techniques appropriately modified to fit the richer schema |
| Beschreibung: | Part of: Synthesis digital library of engineering and computer science Title from PDF title page (viewed on May 3, 2019) |
| Beschreibung: | 1 Online-Resource (xix, 253 Seiten) Illustrationen |
| ISBN: | 9781681734637 |
| DOI: | 10.2200/S00884ED2V01Y201811DTM054 |
Internformat
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| 520 | |a 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. This second edition includes two new chapters that refer to tree-like data and respective query languages. Chapter 8 presents the data model for XML documents and the XPath query language, and Chapter 9 provides a theoretical presentation of tree-like data model and query language where the tuples of a relation share a tree-structured schema for that relation and the query language is a dialect of SQL with evaluation techniques appropriately modified to fit the richer schema | ||
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Datensatz im Suchindex
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| author | Afrati, Foto N. Chirkova, Rada |
| author_GND | (DE-588)1053088159 (DE-588)1155859448 |
| author_facet | Afrati, Foto N. Chirkova, Rada |
| author_role | aut aut |
| author_sort | Afrati, Foto N. |
| author_variant | f n a fn fna r c rc |
| building | Verbundindex |
| bvnumber | BV046427690 |
| collection | ZDB-105-MCS ZDB-105-MCDM |
| ctrlnum | (ZDB-105-MCS)8694766 (OCoLC)1141146620 (DE-599)BVBBV046427690 |
| dewey-full | 005.7565 |
| dewey-hundreds | 000 - Computer science, information, general works |
| dewey-ones | 005 - Computer programming, programs, data, security |
| dewey-raw | 005.7565 |
| dewey-search | 005.7565 |
| dewey-sort | 15.7565 |
| dewey-tens | 000 - Computer science, information, general works |
| discipline | Informatik |
| doi_str_mv | 10.2200/S00884ED2V01Y201811DTM054 |
| edition | Second edition |
| format | Electronic eBook |
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| id | DE-604.BV046427690 |
| illustrated | Not Illustrated |
| indexdate | 2024-07-10T08:44:19Z |
| institution | BVB |
| isbn | 9781681734637 |
| language | English |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-031839992 |
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| physical | 1 Online-Resource (xix, 253 Seiten) Illustrationen |
| psigel | ZDB-105-MCS ZDB-105-MCDM |
| publishDate | 2019 |
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| publisher | Morgan & Claypool Publishers |
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| series | Synthesis lectures on data management |
| series2 | Synthesis lectures on data management |
| spelling | Afrati, Foto N. Verfasser (DE-588)1053088159 aut Answering queries using views Foto Afrati, Rada Chirkova Second edition [San Rafael, California] Morgan & Claypool Publishers [2019] © 2019 1 Online-Resource (xix, 253 Seiten) Illustrationen txt rdacontent c rdamedia cr rdacarrier Synthesis lectures on data management #54 Part of: Synthesis digital library of engineering and computer science Title from PDF title page (viewed on May 3, 2019) 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. This second edition includes two new chapters that refer to tree-like data and respective query languages. Chapter 8 presents the data model for XML documents and the XPath query language, and Chapter 9 provides a theoretical presentation of tree-like data model and query language where the tuples of a relation share a tree-structured schema for that relation and the query language is a dialect of SQL with evaluation techniques appropriately modified to fit the richer schema Querying (Computer science) Abfrage (DE-588)4198788-3 gnd rswk-swf Datenbanksystem (DE-588)4113276-2 gnd rswk-swf Information Extraction (DE-588)4566641-6 gnd rswk-swf Frage-Antwort-System (DE-588)4277060-9 gnd rswk-swf Information Retrieval (DE-588)4072803-1 gnd rswk-swf Abfrage (DE-588)4198788-3 s Datenbanksystem (DE-588)4113276-2 s Frage-Antwort-System (DE-588)4277060-9 s Information Extraction (DE-588)4566641-6 s Information Retrieval (DE-588)4072803-1 s DE-604 Chirkova, Rada Verfasser (DE-588)1155859448 aut Erscheint auch als Druck-Ausgabe, hardcover 978-1-68173-464-4 Erscheint auch als Druck-Ausgabe, paperback 978-1-68173-462-0 Synthesis lectures on data management #54 (DE-604)BV036731811 54 https://doi.org/10.2200/S00884ED2V01Y201811DTM054 Verlag URL des Erstveröffentlichers Volltext |
| spellingShingle | Afrati, Foto N. Chirkova, Rada Answering queries using views Synthesis lectures on data management Querying (Computer science) Abfrage (DE-588)4198788-3 gnd Datenbanksystem (DE-588)4113276-2 gnd Information Extraction (DE-588)4566641-6 gnd Frage-Antwort-System (DE-588)4277060-9 gnd Information Retrieval (DE-588)4072803-1 gnd |
| subject_GND | (DE-588)4198788-3 (DE-588)4113276-2 (DE-588)4566641-6 (DE-588)4277060-9 (DE-588)4072803-1 |
| title | Answering queries using views |
| title_auth | Answering queries using views |
| title_exact_search | Answering queries using views |
| title_full | Answering queries using views Foto Afrati, Rada Chirkova |
| title_fullStr | Answering queries using views Foto Afrati, Rada Chirkova |
| title_full_unstemmed | Answering queries using views Foto Afrati, Rada Chirkova |
| title_short | Answering queries using views |
| title_sort | answering queries using views |
| topic | Querying (Computer science) Abfrage (DE-588)4198788-3 gnd Datenbanksystem (DE-588)4113276-2 gnd Information Extraction (DE-588)4566641-6 gnd Frage-Antwort-System (DE-588)4277060-9 gnd Information Retrieval (DE-588)4072803-1 gnd |
| topic_facet | Querying (Computer science) Abfrage Datenbanksystem Information Extraction Frage-Antwort-System Information Retrieval |
| url | https://doi.org/10.2200/S00884ED2V01Y201811DTM054 |
| volume_link | (DE-604)BV036731811 |
| work_keys_str_mv | AT afratifoton answeringqueriesusingviews AT chirkovarada answeringqueriesusingviews |