16.20 - Example: Finding Differences Between RANK(ANSI) and DENSE_ RANK(ANSI) - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
16.20
Release Date
March 2019
Content Type
Programming Reference
Publication ID
B035-1145-162K
Language
English (United States)

The following SQL statement illustrates the difference between RANK(ANSI) and DENSE_RANK(ANSI), returning the RANK and DENSE_RANK for sales_person by sales_region and sales_amount.

SELECT sales_person, sales_region, sales_amount,
 RANK() OVER
    (PARTITION BY sales_region ORDER BY sales_amount DESC) as "Rank",
 DENSE_RANK() OVER
    (PARTITION BY sales_region ORDER BY sales_amount DESC) as "DenseRank"
 FROM sales_table;
sales_person sales_region sales_amount Rank DenseRank
Garabaldi East 100 1 1
Baker East 100 1 1
Fine East 89 3 2
Adams East 75 4 3
Edwards West 100 1 1
Connors West 99 2 2
Davis West 99 2 2
Russell West 50 4 3