16.20 - Example: Finding Differences Between RANK(ANSI) and DENSE_ RANK(ANSI) - Teradata Vantage NewSQL Engine

Teradata Vantageā„¢ SQL Functions, Expressions, and Predicates

prodname
Teradata Database
Teradata Vantage NewSQL Engine
vrm_release
16.20
category
Programming Reference
featnum
B035-1145-162K

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