WeekNumber_Of_Year | SQL Date/Time Functions & Expressions | Teradata Vantage - 17.10 - WeekNumber_Of_Year - Advanced SQL Engine - Teradata Database

Teradata Vantage™ - SQL Date and Time Functions and Expressions

Advanced SQL Engine
Teradata Database
Release Number
Release Date
July 2021
Content Type
Programming Reference
Publication ID
English (United States)

Returns the number of weeks from the beginning of the year to the specified date.

The WeekNumber_Of_Year function provides improved performance compared to using the Sys_Calendar.Calendar system view to obtain similar results.

ANSI Compliance

This statement is a Teradata extension to the ANSI SQL:2011 standard.

Result Type

The result is an INTEGER value from 0 through 53, where 1 is the first week of the year and 53 is the last week of the year. The value 0 means that there is a partial week in the year, Week0.