Collegamento di Excel a PostgreSQL tramite VBA

Ecco del codice che puoi usare come riferimento. Spero che sia d'aiuto.

Sub SelectBasic()

        Dim objDb_con
        Dim strSomeValue As String

        Set objDb_con = CreateObject("ADODB.Connection")
        Set Rsdatatype = CreateObject("ADODB.RecordSet")

        glbConnString = Trim(ActiveSheet.Range("B1").Value)
        //Connection string format:Driver={PostgreSQL Unicode};Database=MyDB;server=192.16*.*.**;UID=USERID;Pwd=pasword //comment it
        If glbConnString = "" Then
         MsgBox "Enter the Connection String"
        Else:

        objDb_con.Open glbConnString

        strSql = "select strSomeValue  from SOMETABLE where Something=1"
        Rsdatatype.Open strSql, objDb_con, adOpenKeyset, adLockpessimistic
        If Rsdatatype.EOF = False Then strSomeValue = Rsdatatype.Fields(0).Value
        Rsdatatype.Close

        End If
        objDb_con.Close
    End Sub