Window functions are what every T-SQL programmer should know. Part 2.
9 grudnia 2018
Author - Dmitriy Fedyashov
In the second part of the article we will talk about the functions themselves, which are used to form values. The window function calculates the value from a set of data associated with the current row, that is, data from the same group, if Partition by is used. Conventional aggregate functions for ...
Window functions are what every T-SQL programmer should know. Part 1.
6 grudnia 2018
Author - Dmitriy Fedyashov
Long time ago an interesting functionality appeared in Microsoft SQL Server 2005- window functions. These functions allow you to perform calculations in a given range of lines within a Select clause. For those who have not encountered these functions, the question arises - “What does window me...