Beginning SQL Queries From Novice to Professional

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  • Engels
  • Paperback
  • 9781484219546
  • 07 juli 2016
  • 234 pagina's
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Samenvatting

Anyone who does any work at all with databases needs to know something of SQL. This is a friendly and easy-to-read guide to writing queries with the all-important - in the database world - SQL language. The author writes with exceptional clarity.

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.

  • Write simple queries to extract data from a single table
  • Combine data from many tables into one business result using set operations
  • Translate natural language questions into database queries providing meaningful information to the business
  • Avoid errors associated with duplicated and null values
  • Summarize data with amazing ease using the newly-added feature of window functions
  • Tackle tricky queries with confidence that you are generating correct results
  • Investigate and understand the effects of indexes on the efficiency of queries

Productspecificaties

Inhoud

Taal
en
Bindwijze
Paperback
Oorspronkelijke releasedatum
07 juli 2016
Aantal pagina's
234
Illustraties
Nee

Betrokkenen

Hoofdauteur
Clare Churcher
Hoofduitgeverij
Apress

Overige kenmerken

Editie
2
Extra groot lettertype
Nee
Product breedte
178 mm
Product hoogte
13 mm
Product lengte
254 mm
Studieboek
Ja
Verpakking breedte
172 mm
Verpakking hoogte
17 mm
Verpakking lengte
251 mm
Verpakkingsgewicht
611 g

EAN

EAN
9781484219546

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