例: RANK(ANSI)とDENSE_ RANK(ANSI)の相違の検出 - Advanced SQL Engine - Teradata Database

次のSQL文は、RANK(ANSI)とDENSE_RANK(ANSI)との違いを示しており、sales_regionおよびsales_amount別にsales_personのRANKおよびDENSE_RANKを返します。

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;