Returns the number of days from the beginning of the business calendar to the specified date.
The DayNumber_Of_Calendar 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 representing the number of days since and including the beginning of the business calendar.