i create an array with:
'PR_ISTAT
SQL = "SELECT PR, PROVINCIA, COUNT(ISTATEXT) AS NUM FROM (SELECT DISTINCT PR, PROVINCIA, ISTATEXT FROM COMUNI_ISTAT) GROUP BY PR, PROVINCIA"
Set RST = New ADODB.Recordset
RST.CursorLocation = adUseClient
RST.Open SQL, CON, adOpenForwardOnly...