Dim strSQL        As String
    Dim rst           As Object 'ADODB.Recordset
    Dim strConnect    As String
    Dim cnn As New ADODB.Connection
  
    strConnect = "Provider=SQLOLEDB" _
               & ";Persist Security Info=true" _
               & ";Data Source=服务器地址" _
               & ";User ID=登录名" _
               & ";Password=密码" _
               & ";Initial Catalog=数据库名称"
    cnn.Open strConnect
    strSQL = "Select * FROM [表名] Where [xxx]=" & SQLText(Me.xxx)
    Set rst = OpenADORecordset(strSQL, , cnn)
   
        Me![xxx] = rst![xxx]
        ......


    End If
    rst.Close
    cnn.Close