Using ADO to Query Excel
 

My question is the following:

- I use VBA in Excel, and would like to use Excel itself as a data source
(Using ADO). I'd like to keep a table in excel and use SQL expression
power to manipulate the data in the table (selection, grouping, filtering.),
rather than using the usual Excel lookups.

- This does work, but I have an annoying secondary effect with the following
environment:

1) I have an (unrelated) excel session already open (Session 1) on my
Windows desktop.

2) I open a new, fresh, Excel session (Session2) and open my file, with the
table, and the VBA code.

3) I run the code in my file, Session2: it does work, but the unwanted
effect is that my file opens itself again, as Read-Only, in the other
Session1!

I do not know what went wrong. It could be great if you could put me on the
right tracks.

Regards

Public Function Simulation1() As Variant

strPathExcelFile_FILTER = ThisWorkbook.FullName

Set objConnection = CreateObject("ADODB.Connection")
Set objRecordSet = CreateObject("ADODB.Recordset")

objConnection.Open = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
"Data Source=" & strPathExcelFile_FILTER & ";" & _
"Extended Properties=Excel 8.0;"


objRecordSet.Open "SELECT COUNT(*) AS resultat FROM [SHEET1$A1:IV20]
WHERE [PX_LAST] 20", objConnection, adOpenForwardOnly, adLockReadOnly

Simulation.Label2.Caption = objRecordSet.fields("resultat")

objRecordSet.Close
objConnection.Close
Set objConnection = Nothing
Set objRecordSet = Nothing

End Function