SQL Server : get next relative day of week. (Next Monday, Tuesday, Wed…)

Question

What I need is a date for the next given day (Monday, Tuesday, Wed...) following today\'s date.

The user is allowed to select what day following they want and that i

Answer 1

Try this: This will give the date for required weekday in a month.

 declare @monthstartdate date='2020-01-01',@monthenddate date='2020-01-31',@weekday char(9)='thursday',@weeknum int=4

        ; with cte(N,WeekDayName_C,Date_C) as
        (select 1,datename(WEEKDAY,@monthstartdate),@monthstartdate
        union all
        select n+1,datename(WEEKDAY,dateadd(day,n,@monthstartdate)),dateadd(day,n,@monthstartdate) from cte where n<31 and Date_C<=@monthenddate )
        select * from (select *,ROW_NUMBER() over (partition by WeekDayName_C order by Date_C asc)Weeknum from cte)a
        where WeekDayName_C=@weekday and Weeknum=@weeknum