DOW( date-expression )

SMALLINT

The DOW function is not affected by the value specified for the first_day_of_week database option. For example, even if first_day_of_week is set to Monday, the DOW function returns a 2 for Monday.

The following statement returns the value 5:

SELECT DOW( '1998-07-09' );

The following statement returns the value 1:

SELECT DOW( CAST( '2010/05/30 11:33:00.000000+04:00' as TIMESTAMP WITH TIME ZONE ));

The following statement queries the Employees table and returns the employees StartDate, expressed as the number of the day of the week:

SELECT DOW( StartDate ) FROM GROUPO.Employees;