T-SQL Window Functions, 2nd edition / Оконные функции T-SQL, 2-ое издание

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.Добротная книга по оконным функциям в Т-SQL во втором издании (актуально для SQL Server 2019) от эксперта в этой области.