PERCENT_RANK Function | Teradata Vantage - 17.10 - PERCENT_RANK - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Functions, Expressions, and Predicates

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1145-171K
Language
English (United States)

Returns the relative rank of rows for a value_expression.

Type

ANSI SQL:2011 window function.

Computation

The assigned rank of a row is defined as 1 (one) plus the number of rows that precede the row and are not peers of it.

PERCENT_RANK is expressed as an approximate numeric ratio between 0.0 and 1.0.

PERCENT_RANK has this value … FOR the result row assigned this rank …
0.0 1.
1.0 highest in the result.