Weke ("2002- 19- 02"; "2002- 19- 02"; 1) gee terug 0, omdat daar is nie 'n volledige week in tussen, beginne na die eerste dag van die week (maandag of sondag, afhangend op jou plaaslike instellings)
WEEKS("2002-19-02 ";" 2002-19-02 "; 1) returns 0, because there is not a whole week in between, starting at the first day of the week (monday or sunday, depending on your local settings)