Example: Querying the Number of Days from the Beginning of the Business Calendar - Analytics Database - Teradata Vantage

If the current date is January 05, 1901, the following queries return 370 since January 05, 1901, is the 370th day since January 1, 1900:

SELECT TD_SYSFNLIB.DAYNUMBER_OF_CALENDAR(CURRENT_DATE);
SELECT TD_SYSFNLIB.DAYNUMBER_OF_CALENDAR(DATE '1901-01-05');