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SQL Window Functions Explained
Window functions are probably the most confusing part of SQL. You might think, "So what? They just added a few extra functions". Not really. "Window functions" is a separate language built into regular SQL. And it's more complicated than anything you know about SELECTs.
This book is a clear and visual introduction to window functions. A step-by-step narrative combined with numerous visuals helps readers understand the material. Fifty-six interactive exercises with solutions ensure that you master window functions in practice.
Here is what you will and when to use window functions.What a window and a window function are and how to use them.Ranking, offset, aggregation, rolling aggregates, and statistics window functions.Row, group, and range frames.Frame behavior, filtering, and exclusions.Using window functions in financial and product analysis, clustering, and data cleaning.
You can use this book with any of the following MySQL, MariaDB, PostgreSQL, SQLite, MS SQL, and Oracle.
This book is a clear and visual introduction to window functions. A step-by-step narrative combined with numerous visuals helps readers understand the material. Fifty-six interactive exercises with solutions ensure that you master window functions in practice.
Here is what you will and when to use window functions.What a window and a window function are and how to use them.Ranking, offset, aggregation, rolling aggregates, and statistics window functions.Row, group, and range frames.Frame behavior, filtering, and exclusions.Using window functions in financial and product analysis, clustering, and data cleaning.
You can use this book with any of the following MySQL, MariaDB, PostgreSQL, SQLite, MS SQL, and Oracle.
296 pages, Kindle Edition
Published May 3, 2023
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