Sql Server 는 일정 기간 의 모든 일요일 을 조회 합 니 다.

 /*
	             
	@startdate     
	@enddate     
 */
 
declare @startDate datetime
declare @endDate datetime
declare @week varchar(20)
set @startDate = '20150101'
set @endDate = '20151231'
while @startDate <= @endDate 
begin
	set @week = DATENAME(weekday, @startDate);
	if (@week = '   ' or @week = '   ')
	begin
		select DATENAME(YEAR, @startDate) as "year", @startDate as "day"
	end

	set @startDate = @startDate + 1;
end