access query to grab a substring

I have a text field lets call it [field1] that contains this combination types of data that I will be using a query to grab:
30% ($25 min)
30% ($50 max)
30% ($25 min $150 max)
there will be no deviation it will be one of these 3 types.
I need to take the min and max data and place it into 2 different fileds.
I need to grab - when "min" the 25 (no dollar sign)
and when "max" grab the 50 or 150 (max can be 2 or 3 digits) no dollar sign.
I have the idea of finding when it exist using the like function so it would look like
Retail Cost Min: iif(like "*[Field1]*"="min",         , "")
Retail Cost Max: iif(like "*[Field1]*"="max",         , "")
but I don't know what to use to grab the exact data in the middle.
Any ideas anyone.
Stephen RoesnerAnalysisAsked:
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Jim Dettman (Microsoft MVP/ EE MVE)President / OwnerCommented:
InStr() locates one string inside another and tells you where it found it.

Left() grabs the left most x characters.
Right() the right,

and Mid characters in the middle (start and length).

Since your fields are fixed, you can do:

IIF (Mid$([field],10,3)="MIN",

and so on.  Going to get terribly complex in the query with IIF()'s.  You should write a UDF (User Defined Function aka a procedure) in VBA to do it.

 And with all that said, the real answer is to redesign the DB.   You should not have multiple values in a field like that,

Jim.
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Jeffrey CoachmanMIS LiasonCommented:
Obviously someone will be able to solve this issue.

Ultimately this is two (or possibly three)  separate pieces of data, that should be stored separately...
With this more "Normalized " design, you will be allowed more flexibility if more Rate/Amount value combinations may be added.
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Dale FyeCommented:
Agree with Jim.  If you are certain that all of the values of Field1 meet one of those formats, you could use this function:

Public Function fnMinMax(ParseWhat As String, Which As String) As Variant

    Dim myArray() As String
    
    myArray = Split(Replace(Replace(Replace(ParseWhat, "(", ""), "$", ""), ")", ""), " ")
    
    If myArray(2) = Which Then
        fnMinMax = myArray(1)
    ElseIf UBound(myArray) > 2 Then
        If myArray(4) = Which Then
            fnMinMax = myArray(3)
        End If
    End If

End Function

Open in new window

and call it like:
Retail Cost Min: fnMinMax([Field1], "min")
Retail Cost Min: fnMinMax([Field1], "max")
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Stephen RoesnerAnalysisAuthor Commented:
Jim thanks for reminding me of Instr. I knew about left and mid and right but had forgotten about instr. I have used all 4 to get what I needed thank you very much for your assistance.
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