Examples | ROUND(Date) Functions | Teradata Vantage - Example: Rounding the Date to the First Day of the Week - Analytics Database - Teradata Vantage

The following query:

SELECT ROUND(CAST('2003/09/17' AS DATE), 'D') (FORMAT 'yyyy-mm-dd'); 

returns the result 2003-09-14. The date was rounded to the first day of that week.