T-SQL Window FunctionsAuthor :
Paperback
Published : Monday 2 December 2019
Description
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. Youll 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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