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« Des bases pour la performance et le Big Data. En quelques années, le volume des données brassées par les entreprises a considérablement augmenté. Émanant de sources diverses (transactions, comportements, réseaux sociaux, géolocalisation...), elles sont souvent structurées autour d'un seul point d'entrée, la clé, et susceptibles de croître très rapidement. Autant de caractéristiques qui les rendent très difficiles à traiter avec des outils classiques de gestion de données. Par ailleurs, certains cas d'utilisation exigeant des temps d'accès très courts défient également les capacités des moteurs transactionnels. C'est pour répondre à ces différentes problématiques que sont nées les bases de données NoSQL (Not Only SQL), sous l'impulsion de grands acteurs du Web comme Facebook ou Google, qui les avaient développées à l'origine pour leurs besoins propres. Grâce à leur flexibilité et leur souplesse, ces bases non relationnelles permettent en effet de gérer de gros volumes de données hétérogènes sur un ensemble de serveurs de stockage distribués, avec une capacité de montée en charge très élevée. Elles peuvent aussi fournir des accès de paires clé-valeur en mémoire avec une très grande célérité. Réservées jusqu'à peu à une minorité, elles tendent aujourd'hui à se poser en complément du modèle relationnel qui dominait le marché depuis plus de 30 ans. Du choix de la base NoSQL à sa mise en œuvre. Cet ouvrage d'une grande clarté dresse un panorama complet des bases de données NoSQL, en analysant en toute objectivité leurs avantages et inconvénients. Dans une première partie, il présente les grands principes de ces bases non relationnelles : interface avec le code client, architecture distribuée, paradigme MapReduce, etc. Il détaille ensuite dans une deuxième partie les principales solutions existantes (Hadoop, MongoDB, Cassandra, CouchDB...), en précisant spécificités, forces et faiblesses de chacune. Complétée par une étude de cas réel, la dernière partie du livre est consacrée au déploiement concret de ces bases : dans quel cas passer au NoSQL ? quelle base adopter selon ses besoins ? quelles données basculer en NoSQL ? comment mettre en place une telle base ? comment la maintenir et superviser ses performances ? »
Non-relational databases. --- Database design. --- Database management. --- NoSQL --- Bases de données --- Conception --- Gestion
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Pro T–SQL Programmer’s Guide is your guide to making the best use of the powerful, Transact-SQL programming language that is built into Microsoft SQL Server's database engine. This edition is updated to cover the new, in-memory features that are part of SQL Server 2014. Discussing new and existing features, the book takes you on an expert guided tour of Transact–SQL functionality. Fully functioning examples and downloadable source code bring technically accurate and engaging treatment of Transact–SQL into your own hands. Step–by–step explanations ensure clarity, and an advocacy of best–practices will steer you down the road to success. Transact–SQL is the language developers and DBAs use to interact with SQL Server. It’s used for everything from querying data, to writing stored procedures, to managing the database. Support for in-memory stored procedures running queries against in-memory tables is new in the language and gets coverage in this edition. Also covered are must-know features such as window functions and data paging that help in writing fast-performing database queries. Developers and DBAs alike can benefit from the expressive power of T-SQL, and Pro T-SQL Programmer's Guide is your roadmap to success in applying this increasingly important database language to everyday business and technical tasks. Covers the newly-introduced, in-memory database features Shares the best practices used by experienced professionals Goes deeply into the subject matter − an advanced book for the serious reader.
Computer Science. --- Database Management. --- Computer science. --- Database management. --- Informatique --- Bases de données --- Gestion --- SQL (Computer program language). --- SQL (Computer program language) --- Client/server computing --- Engineering & Applied Sciences --- Computer Science --- SQL server. --- Structured Query Language (Computer program language) --- Microsoft SQL server --- Data base management --- Data services (Database management) --- Database management services --- DBMS (Computer science) --- Generalized data management systems --- Services, Database management --- Systems, Database management --- Systems, Generalized database management --- Electronic data processing --- Informatics --- Science --- Declarative programming languages --- Query languages (Computer science)
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Pro T–SQL Programmer’s Guide is your guide to making the best use of the powerful, Transact-SQL programming language that is built into Microsoft SQL Server's database engine. This edition is updated to cover the new, in-memory features that are part of SQL Server 2014. Discussing new and existing features, the book takes you on an expert guided tour of Transact–SQL functionality. Fully functioning examples and downloadable source code bring technically accurate and engaging treatment of Transact–SQL into your own hands. Step–by–step explanations ensure clarity, and an advocacy of best–practices will steer you down the road to success. Transact–SQL is the language developers and DBAs use to interact with SQL Server. It’s used for everything from querying data, to writing stored procedures, to managing the database. Support for in-memory stored procedures running queries against in-memory tables is new in the language and gets coverage in this edition. Also covered are must-know features such as window functions and data paging that help in writing fast-performing database queries. Developers and DBAs alike can benefit from the expressive power of T-SQL, and Pro T-SQL Programmer's Guide is your roadmap to success in applying this increasingly important database language to everyday business and technical tasks. Covers the newly-introduced, in-memory database features Shares the best practices used by experienced professionals Goes deeply into the subject matter − an advanced book for the serious reader.
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Computer software --- Computer software --- Databases --- Databases --- computer applications --- computer applications --- Geographical information systems --- Geographical information systems --- Information processing --- Information processing
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Pro T-SQL 2012 Programmer's Guide is every developer's key to making full use of SQL Server 2012's powerful, built-in Transact-SQL language. Discussing new and existing features, the book takes you on an expert guided tour of Transact-SQL functionality. Fully functioning examples and downloadable source code bring technically accurate and engaging treatment of Transact-SQL into your own hands. Step-by-step explanations ensure clarity, and an advocacy of best-practices will steer you down the road to success. Transact-SQL is the language developers and DBAs use to interact with SQL Server. It's used for everything from querying data, to writing stored procedures, to managing the database. New features in T-SQL 2012 include full support for window functions, stored sequences, the ability to throw errors, data paging, and more. All these important new features are covered in this book. Developers and DBAs alike can benefit from the expressive power of Transact-SQL, and Pro T-SQL 2012 Programmer's Guide provides the gateway to success in applying this increasingly important database language to everyday business and technical tasks.
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