Expert T-SQL Window Functions in SQL Server
Год: 2015
Автор: Kellenberger K., Groom C.
Издательство: Apress
ISBN: 978-1-4842-1103-8
Язык: Английский
Формат: PDF
Серия: The Expert's Voice in SQL Server
Качество: Изначально компьютерное (eBook)
Интерактивное оглавление: Да
Количество страниц: 140
Описание: Expert T-SQL Window Functions in SQL Server takes you from any level of knowledge of windowing functions and turns you into an expert who can use these powerful functions to solve many T-SQL queries. Replace slow cursors and self-joins with queries that are easy to write and fantastically better performing, all through the magic of window functions.
Примеры страниц Содержание
About the Authors xi
About the Technical Reviewer xiii
Acknowledgments xv
Author’s Note xvii
Chapter 1: Looking Through the Window 1
Chapter 2: Discovering Ranking Functions 17
Chapter 3: Summarizing with Window Aggregates 33
Chapter 4: Tuning for Better Performance 47
Chapter 5: Calculating Running and Moving Aggregates 61
Chapter 6: Adding Frames to the Window 71
Chapter 7: Taking a Peek at Another Row 83
Chapter 8: Understanding Statistical Functions 97
Chapter 9: Time Range Calculations and Trends 107
Index 129
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