Question : Matching case in SQL

I use visual basic & create my own sql or get it from access wizard

I need to match or not match user input with what is on access db as follows

sql="select * from details where data = '" & txtData.text & "'"

data on the db is "abc" and txtData.text="ABC"

In the above sql I get a match which is not correct

how do I write the sql so I don't get a match?

Answer : Matching case in SQL

Paste the following code into a NEW module:

Function fncASCII(strInput As String) As String

' Converts the input string into a PURE ascii value
' Can be used to distinguish the same data value
' which may be in differing "cases"
' e.g.  Yale becomes: 089097108101
'       YALE becomes: 089065076069
'       yale becomes: 121097108101

' Useful in GROUPBY clause/s

    Dim inti As Integer
    Dim ascCharacter As Integer
   
    For inti = 1 To Len(strInput)
        ' ascCharacter = Asc(Mid(strInput, intI, 1))
        fncASCII = fncASCII & Right("000" & Asc(Mid(strInput, inti, 1)), 3)
    Next inti

End Function

....

and then include "calls" to that function within your query by altering it thus:

sql = "select * from details where fncASCII(data) = '" & fncASCII(txtData.text) & "'"