DENSE_RANK

Description

This function returns the rank of each row within a result set partition, with no gaps in the ranking values. The rank of a specific row is one plus the number of distinct rank values that come before that specific row. (DENSE_RANK in Transact-SQL).

Sample Source Pattern

Syntax

SQL Server

DENSE_RANK ( ) OVER ( [ <partition_by_clause> ] < order_by_clause > )  

Snowflake SQL

Snowflake SQL Documentation

DENSE_RANK() OVER ( [ PARTITION BY <expr1> ] ORDER BY <expr2> [ ASC | DESC ] [ <window_frame> ] )

Examples

SQL Server

Code:

SELECT TOP 10 BUSINESSENTITYID, NATIONALIDNUMBER, RANK() OVER (ORDER BY NATIONALIDNUMBER) AS RANK FROM HUMANRESOURCES.EMPLOYEE AS TOTAL

Result:

BUSINESSENTITYID|NATIONALIDNUMBER|DENSE_RANK|
----------------+----------------+----------+
              57|10708100        |         1|
              54|109272464       |         2|
             273|112432117       |         3|
               4|112457891       |         4|
             139|113393530       |         5|
             109|113695504       |         6|
             249|121491555       |         7|
             132|1300049         |         8|
             214|131471224       |         9|
              51|132674823       |        10|

Snowflake SQL

Code:

SELECT TOP 10 BUSINESSENTITYID,
NATIONALIDNUMBER,
RANK()
OVER (ORDER BY NATIONALIDNUMBER) AS DENSE_RANK FROM HUMANRESOURCES.EMPLOYEE AS TOTAL;

Result:

BUSINESSENTITYID|NATIONALIDNUMBER|DENSE_RANK|
----------------+----------------+----------+
              57|10708100        |         1|
              54|109272464       |         2|
             273|112432117       |         3|
               4|112457891       |         4|
             139|113393530       |         5|
             109|113695504       |         6|
             249|121491555       |         7|
             132|1300049         |         8|
             214|131471224       |         9|
              51|132674823       |        10|