Popular Posts

SQLblog.com - The SQL Server blog spot on the web

Monday, July 10, 2017

T-SQL Window Functions

SQLblog.com - The SQL Server blog spot on the web
T-SQL Window Functions

I’ll soon post something on this, but let me tell you right here. If you don’t want AI to take you DEV/DBA/BI job you *need* to be smarter than AI (which is not AI at all right now, but let’s keep on playing the marketing game): one way to become smarter is to - guess! - use your brain and train it to think out of the box, practice lateral thinking and more in general do all the things that brute force and Machine Learning cannot do.

Of course when you do that, you have to be supported by a language that allows you to exploit all such potential. SQL is one of those nice languages. So don’t miss Itzik Ben-Gan session on T-SQL Window Functions on July 13th for the Application Development Virtual Group:

T-SQL Window Functions

Itzik Ben-Gan

T-SQL window functions allow you to perform data analysis calculations like aggregates, ranking, offset and more. When compared with alternative tools to achieve similar tasks like grouping, joining, using subqueries, window functions have several interesting advantages that allow you to solve your tasks often more elegantly and more efficiently. Furthermore, as it turns out, window functions can be used to solve a wide variety of T-SQL querying tasks well beyond their original intended use case, which is data analysis. This session introduces window functions and their evolution from SQL Server 2005 to SQL Server 2017, explains how they get optimized, and shows practical use cases.

Registration via the usual link:

http://appdev.pass.org/

Don’t miss it, no matter if you’re into SQL Server or not. This will be useful to everyone who works with databases that supports the standard ANSI-SQL 2003 and after. This means, SQL Server, Azure SQL, of course, but also Hive, SparkQL, Postgres and MySQL (nope,sorry), MariaDB

No comments: