Beginning SQL Queries

Clare Churcher

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Langue : anglais

Edité par APress, US, 2016

1484219546 / 9781484219546

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A propos de cet article

Get started on mastering the one language binding the entire database industry. That language is SQL, and how it works is must-have knowledge for anyone involved with relational databases, and surprisingly also for anyone involved with NoSQL databases. SQL is universally used in querying and reporting on large data sets in order to generate knowledge to drive business decisions.Good knowledge of SQL is crucial to anyone working with databases, because it is with SQL that you retrieve data, manipulate data, and generate business results. Every relational database supports SQL for its expressiveness in writing queries underlying reports and business intelligence dashboards. Knowing how to write good queries is the foundation for all work done in SQL, and it is a foundation that Clare Churcher's book, Beginning SQL Queries, 2nd Edition, lays well.What You Will LearnWrite simple queries to extract datafrom a single tableCombine data from many tables into one business result using set operationsTranslate natural language questions into database queries providing meaningful information to the businessAvoid errors associated with duplicated and null valuesSummarize data with amazing ease using the newly-added feature of window functionsTackle tricky queries with confidence that you are generating correct resultsInvestigate and understand the effects of indexes on the efficiency of queriesWho This Book Is ForBeginning SQL Queries, 2nd Edition is aimed at intelligent laypeople who need to extract information from a database, and at developers and other IT professionals who are new to SQL. The book is especially useful for business intelligence analysts who must ask more complex questions of their database than their GUI-based reportingsoftware supports. Such people might be business owners wanting to target specific customers, scientists and students needing to extract subsets of their research data, or end users wanting to make the best use of databases for their clubs and societies.…

N° de réf. du vendeur LU-9781484219546

Titre
Beginning SQL Queries
Auteur
Clare Churcher
Éditeur
APress, US
Année de publication
2016
État de l'article
New
Reliure
Paperback
Langue
anglais
ISBN à 10 chiffres
1484219546
ISBN à 13 chiffres
9781484219546
Édition
2nd ed.
Dimensions
17.81 x 1.5 x 25.4 cm

Rarewaves.com USA

London, London, Royaume-Uni

Vendeur avec une évaluation de 5 étoiles

Vendeur AbeBooks depuis 11 juin 2025

Frais d'expédition de Royaume-Uni vers Etats-Unis

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