Question : Iff or CASE Statement

Here is my problem,

I have 3 fields name Field4 Field5 and Filed16

Contents of Fields would be,

Field4   Field5   Field16
70          90         W
96          45         W
40          50         N
60          30         N
20          20         N

What i need is to do some kind of iif statement within a query where in my english version i get this

When field 16 = W the largest of Field4 & Field5 gets populated into say SizeAcross: and the smallest into to Say SizeDown:

And also

When Field16 = N the smallest of Field4 & Field5 gets populated into say SizeAcross: and the largest into SizeDown:

and finally if Field16 = W or N and Field4 = Filed5 then no change.

I have trying to get this to work on my data which has some correct entries and quite a few incorrect entries, Any help on this would be great.

It may not be an IIF or CASE statement but those are the ones I am assuming which will resolve this little problem.

Thanks
Psyclones
 

Answer : Iff or CASE Statement

Hi Psyclones,

You need a function to do this for you.
The one below will do it.

In your query you have something like:

SizeAcross:GetVal(Field4,Field5,Field6,"SA")

SizeDown:GetVal(Field4,Field5,Field6,"SD")

Pete

Function GetVal(f4, f5, f6, SAorSD)
Dim largest
Dim smallest
If f4 > f5 Then
largest = f4
smallest = f5
Else
largest = f5
smallest = f4
End If
If SAorSD = "SA" Then
If f6 = "N" Then
GetVal = smallest
Else
GetVal = largest
End If
Else
If f6 = "N" Then
GetVal = largest
Else
GetVal = smallest
End If
End If
End Function