如何检查MS Access for vb宏中是否存在表

Question

可能重复:
检查访问表是否存在

我是vba宏的新手.知道如何检查表是否存在？我搜索过以前的帖子,但没有得到明确的解决方案.

Answer 1

设置对Microsoft Access 12.0对象库的引用允许我们使用DCount测试表是否存在.

Public Function ifTableExists(tblName As String) As Boolean

    If DCount("[Name]", "MSysObjects", "[Name] = '" & tblName & "'") = 1 Then

        ifTableExists = True

    End If

End Function

Answer 2

Exists = IsObject(CurrentDb.TableDefs(tablename))

Answer 3

我知道问题已经得到解答,但我发现现有的答案无效:
对于具有非工作后端的链接表,它们将返回True.
使用DCount可能会慢得多,但更可靠.

Function IsTable(sTblName As String) As Boolean
    'does table exists and work ?
    'note: finding the name in the TableDefs collection is not enough,
    '      since the backend might be invalid or missing

    On Error GoTo hell
    Dim x
    x = DCount("*", sTblName)
    IsTable = True
    Exit Function
hell:
    Debug.Print Now, sTblName, Err.Number, Err.Description
    IsTable = False

End Function