Calculate Date of the week from weekending date

Hi Experts!

I have a weekending date (Sunday) in column A.  I have the day of the week name in column B.  What I need in column C is the date associated for that day of the week.  

7/27/14     Mon    7/21/14
7/27/14     Tue     7/22/14
7/27/14     Wed    7/23/14
7/27/14     Thu     7/24/14
7/27/14     Fri       7/25/14
7/27/14     Sat      7/26/14
7/27/14     Sun     7/27/14

Of course I have different weekending dates in a huge data set.  It is column c that I am trying to populate.

Any help would be greatly appreciated.
spudmccAsked:
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Kyle AbrahamsSenior .Net DeveloperCommented:
I would create a function:

create function GetDateAdj
( @weekday varchar(3) 
)
returns int
as
begin 
   declare @adjust int
   select @adjust = case @weekday
      when 'Sun' then 0
      when 'Sat' then -1
      when 'Fri' then -2
      when 'Thu' then -3
      when 'Wed' then -4
      when 'Tue' then -5
      when 'Mon' then -6

return (@adjust)
end

Open in new window


then select [A], [ B], dateadd(d, [A], dbo.GetDateAdj([ B])) as C
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Glenn RayExcel VBA DeveloperCommented:
Here are a few possible solutions:

1) Enter this formula in cell C1 and copy down:
=A1-MATCH(B1,{"Sun","Sat","Fri","Thu","Wed","Tue","Mon"},0)+1

2) Create named range ("DayList" for example) with this set of values:
={"Sun","Sat","Fri","Thu","Wed","Tue","Mon"}
then enter this formula in cell C1 and copy down:
=A1-MATCH(B1,DayList,0)+1

3) Create an actual vertical range of values anywhere in your workbook,
Sun
Sat
Fri
Thu
Wed
Tue
Mon
Highlight and name this range (again, "DayList" as an example), then use the same formula as shown in 2).

-Glenn
0
Kyle AbrahamsSenior .Net DeveloperCommented:
Excel . . . sorry, thought this was SQL.
0
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Glenn RayExcel VBA DeveloperCommented:
Example file attached with above formulas.
EE-DateLookup.xlsx
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spudmccAuthor Commented:
Awesome solution.  This is going to save a huge amount of time and frustration.  I so very much appreciate sharing your knowledge and time addressing this issue for me.

Much thanks!

Andy
0
Glenn RayExcel VBA DeveloperCommented:
I love helping folks save time!  That means there's time for dessert! :-)

-Glenn
0
barry houdiniCommented:
Wouldn't it be sufficient just to make C7 equal to A7 and then count back one day at a time? So that would mean just this formula in C7

=A7

and then this formula in A6 copied up

=A7-1

regards, barry
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