{"product_id":"9783031007439","title":"Synthesis Lectures on Data Management","description":"\u003ch1\u003eSynthesis Lectures on Data Management\u003c\/h1\u003e \u003ch2\u003eAfrati, Foto; Chirkova, Rada\u003c\/h2\u003e \u003cp\u003e\u003c\/p\u003e\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cp\u003eThis 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. \u003c\/p\u003e\n\u003cp\u003eThis second edition includes twonew 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.\u003c\/p\u003e \u003ch3\u003eDetails\u003c\/h3\u003e \u003cp\u003ePublished by: Springer\u003c\/p\u003e \u003cp\u003ePublication Date: 2019-04-16\u003c\/p\u003e \u003cp\u003eFormat: Paperback\u003c\/p\u003e \u003cp\u003eISBN-13: 9783031007439\u003c\/p\u003e \u003cp\u003eDOI: 10.1007\/978-3-031-01871-8\u003c\/p\u003e \u003cp\u003eDimensions: 235cm x191cm\u003c\/p\u003e \u003cp\u003ePages: 253\u003c\/p\u003e ","brand":"Springer International Publishing","offers":[{"title":"Default Title","offer_id":44753507156108,"sku":"9783031007439","price":49.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9545\/1788\/files\/9783031007439.jpg?v=1776864819","url":"https:\/\/lateknightbooks.com\/products\/9783031007439","provider":"Late Knight Books and Services, LLC","version":"1.0","type":"link"}