T-SQL Window Functions (eBook)

For data analysis and beyond

Itzik Ben-Gan (Autor)

eBook Download: EPUB

2019
352 Seiten
Pearson Education (Verlag)
978-0-13-586162-2 (ISBN)

Infos

Use window functions to write simpler, better, more efficient T-SQL queries Most T-SQL developers recognize the value of window functions for data analysis calculations. But they can do far more, and recent optimizations make them even more powerful. In T-SQL Window Functions, renowned T-SQL expert Itzik Ben-Gan introduces breakthrough techniques for using them to handle many common T-SQL querying tasks with unprecedented elegance and power. Using extensive code examples, he guides you through window aggregate, ranking, distribution, offset, and ordered set functions. You'll find a detailed section on optimization, plus an extensive collection of business solutions - including novel techniques available in no other book. Microsoft MVP Itzik Ben-Gan shows how to: * Use window functions to improve queries you previously built with predicates * Master essential SQL windowing concepts, and efficiently design window functions * Effectively utilize partitioning, ordering, and framing * Gain practical in-depth insight into window aggregate, ranking, offset, and statistical functions * Understand how the SQL standard supports ordered set functions, and find working solutions for functions not yet available in the language * Preview advanced Row Pattern Recognition (RPR) data analysis techniques * Optimize window functions in SQL Server and Azure SQL Database, making the most of indexing, parallelism, and more * Discover a full library of window function solutions for common business problems About This Book * For developers, DBAs, data analysts, data scientists, BI professionals, and power users familiar with T-SQL queries * Addresses any edition of the SQL Server 2019 database engine or later, as well as Azure SQL Database Get all code samples at: MicrosoftPressStore.com/TSQLWindowFunctions/downloads

Produkt-Details

• Erscheint lt. Verlag: 18.10.2019
• Sprache: englisch
• Themenwelt: Mathematik / Informatik ► Informatik ► Datenbanken
• Themenwelt: Mathematik / Informatik ► Informatik ► Programmiersprachen / -werkzeuge
• Themenwelt: Mathematik / Informatik ► Informatik ► Software Entwicklung
• Themenwelt: Technik ► Elektrotechnik / Energietechnik
• ISBN-10: 0-13-586162-4 / 0135861624
• ISBN-13: 978-0-13-586162-2 / 9780135861622