| 书目名称 | Expert T-SQL Window Functions in SQL Server 2019 | | 副标题 | The Hidden Secret to | | 编辑 | Kathi Kellenberger,Clayton Groom,Ed Pollack | | 视频video | | | 概述 | Helps you write better performing queries using window functions.Provides fun examples that you can experiment with in your own databases.Explains how to get the best performance when using window fun | | 图书封面 |  | | 描述 | Become an expert who can use window functions to solve T-SQL query problems. Replace slow cursors and self-joins with queries that are easy to write and perform better. This new edition provides expanded examples, including a chapter from the world of sports, and covers the latest performance enhancements through SQL Server 2019. .Window functions are useful in analytics and business intelligence reporting. They came into full blossom with SQL Server 2012, yet they are not as well known and used as often as they ought to be. This group of functions is one of the most notable developments in SQL, and this book shows how every developer and DBA can benefit from their expressive power in solving day-to-day business problems. Once you begin using window functions, such as ROW_NUMBER and LAG, you will discover many ways to use them. You will approach SQL Server queries in a different way, thinking about sets of data instead of individual rows. Your querieswill run faster, be easier to write, and easier to deconstruct, maintain, and enhance in the future..Just knowing and using these functions is not enough. You also need to understand how to tune the queries. .Expert T-SQL Window Functi | | 出版日期 | Book 2019Latest edition | | 关键词 | Analytic functions; Business intelligence; ranking functions; ROW_NUMBER; RANK; LAG and LEAD; FIRST_VALUE | | 版次 | 2 | | doi | https://doi.org/10.1007/978-1-4842-5197-3 | | isbn_softcover | 978-1-4842-5196-6 | | isbn_ebook | 978-1-4842-5197-3 | | copyright | Kathi Kellenberger, Clayton Groom, and Ed Pollack 2019 |
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发表于 2025-3-21 16:15:09
