Important Points About SQL Server NTILE() Function

NTILE() Function in SQL Server

The NTILE() function in SQL server is used to distribute rows of an ordered partition into a specified number of approximately equal groups, or buckets....

Syntax

The NTILE() function syntax is:...

SQL NTILE() Function Example

Let’s look at some examples of NTILE() function in SQL Server to understand it better....

Important Points About SQL Server NTILE() Function

The NTILE() function is a window function that distributes rows of an ordered partition into a specified number of approximately equal groups, or buckets. It assigns each group a bucket number starting from one. If the total of rows is divisible by the buckets, the function divides evenly the rows among buckets. If the number of rows is not divisible by the buckets, the NTILE() function returns groups of two sizes with the difference by one. Proper indexing on columns used in the ORDER BY clause within the OVER() partition can improve performance when using NTILE() on large datasets It is useful for creating histograms, analyzing rankings, or dividing data to allow parallel processing....