Select Newest Record and Create New Table of Unique Values in Excel

Question

I have an Excel table that records vehicle progress through work stations within a business. A given work station may be visited more than once.

The vehicle license

Answer 1

You mentioned SQL in your question, so I thought you might be interested in a VBA solution using SQL:

'Assumes your data is on a sheet called "DataSheet", and you want the answers stored starting in cell A2 of a sheet called "Results")

Sub test()
    Dim objConnection           As ADODB.Connection
    Dim objRecordset            As ADODB.Recordset

    Set objConnection = New ADODB.Connection
    Set objRecordset = New ADODB.Recordset

    objConnection.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;" & _
                                     "Data Source=" & ThisWorkbook.FullName & ";" & _
                                     "Extended Properties=""Excel 12.0;HDR=Yes;IMEX=1"";"

    objConnection.Open

    sqlcommand = "SELECT LAST([Record ID]), " & _
                        "[Reg No], " & _
                        "LAST([Priority Level]), " & _
                        "LAST([Make]), " & _
                        "LAST([Current Stage]) " & _
                        "FROM [DataSheet$] GROUP BY [Reg No]"
    objRecordset.Open sqlcommand, objConnection, adOpenStatic, adLockOptimistic, adCmdText
    Sheets("Results").Range("A2").CopyFromRecordset objRecordset
End Sub

To use that, you will need to include References to the "Microsoft ActiveX Data Objects 6.1 Library" and "Microsoft ActiveX Data Objects Recordset 6.0 Library" in your VBA project. (At least, they're the ones I select.)