T-SQL Window Functions: For data analysis and beyond (Developer Reference)

T-SQL Window Functions: For data analysis and beyond (Developer Reference)

<div> <p style="margin:0px;"> <b>Use window functions to write simpler, better, more efficient T-SQL queries </b> </p> <p style="margin:0px;"> 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.</p> <p style="margin:0px;"> </p> <p style="margin:0px;"> </p> <p style="margin:0px;"> <b>Microsoft MVP Itzik Ben-Gan shows how to: </b> </p> <p style="margin:0px;">• Use window functions to improve queries you previously built with predicates </p> <p style="margin:0px;">• Master essential SQL windowing concepts, and efficiently design window functions </p> <p style="margin:0px;">• Effectively utilize partitioning, ordering, and framing </p> <p style="margin:0px;">• Gain practical in-depth insight into window aggregate, ranking, offset, and statistical functions </p> <p style="margin:0px;">• Understand how the SQL standard supports ordered set functions, and find working solutions for functions not yet available in the language </p> <p style="margin:0px;">• Preview advanced Row Pattern Recognition (RPR) data analysis techniques </p> <p style="margin:0px;">• Optimize window functions in SQL Server and Azure SQL Database, making the most of indexing, parallelism, and more </p> <p style="margin:0px;">• Discover a full library of window function solutions for common business problems </p> <p style="margin:0px;"> </p> <p style="margin:0px;"> <b>About This Book </b> </p> <p style="margin:0px;">• For developers, DBAs, data analysts, data scientists, BI professionals, and power users familiar with T-SQL queries </p> <p style="margin:0px;">• Addresses any edition of the SQL Server 2019 database engine or later, as well as Azure SQL Database </p> <p style="margin:0px;"> </p> <p style="margin:0px;"> <b>Get all code samples at: </b> </p> <p style="margin:0px;">MicrosoftPressStore.com/TSQLWindowFunctions/downloads </p> </div>