Overview

Use window functions to write simpler, better, more efficient T-SQL queries Most T-SQL developers recognise the value of window functions for data analysis calculations. But they can do far more, and recent optimisations 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 optimisation, 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 utilise 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 Optimise 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

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9780135861448

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Itzik Ben-Gan is a mentor and co-founder of SolidQ and has been a data platform Microsoft MVP (Most Valuable Professional) since 1999. Itzik has delivered numerous training events around the world focused on T-SQL Querying, Query Tuning, and Programming. Itzik is the author of several books including T-SQL Fundamentals and T-SQL Querying. He has written articles for SentryOne’s sqlperformance.com, ITProToday, and SolidQ. Itzik’s speaking activities include PASS Summit, SQLBits, and various events and user groups around the world. Itzik is the author of SolidQ’s Advanced T-SQL Querying, Programming, and Tuning and T-SQL Fundamentals courses, and he is a primary resource within the company for their T-SQL–related activities.

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