Returns a numerical value, indicating the day of the week corresponding to the specified DateTime value, where 0 = Sunday, 1 = Monday, 2 = Tuesday, 3 = Wednesday, 4 = Thursday, 5 = Friday and 6 = Saturday.
The integer portion of the DateTime value specifies the number of days since January 1st, 1900, and the fractional portion of the DateTime value specifies the fraction of the day since midnight.
- DateTime - a double-precision decimal DateTime value.
Will return a value of 2, indicating Tuesday, for January 1st, 2008.
Returns a value of 0, indicating that today is a Sunday.