parameters [Начальная дата] date, [Конечная дата] date;
select n, n+[Начальная дата]-1 AS dt
from (select (D2.digit & D1.digit & D0.digit)+1 AS n from Digits AS D0, Digits AS D1, Digits AS D2)  AS q1
where n<=[Конечная дата]-[Начальная дата] and weekday(n+[Начальная дата]-1,2)=5