'判斷一個字段是否在表中
    Function BlnField(sTblName As String, sFldName As String) As Boolean
    'sTblName　源表名
    '要查找的字段名
    Dim fld As Field
    Dim rs As DAO.Recordset
    BlnField = False
    Set rs = CurrentDb.OpenRecordset(sTblName)
    rs.Fields.Refresh
    For Each fld In rs.Fields
    If fld.Name = sFldName Then
    BlnField = True
    Exit For
    End If
    Next
    rs.Close
    Set rs = Nothing
    Set fld = Nothing
    End Function
    Private Sub 命令0_Click()
    '返回True則有此字段，F(xiàn)alse則無
    MsgBox BlnField("tbl1", "ID")
    End Sub