保持联系表访问DBs在同一文件夹中的文件夹时变化
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22-08-2019 - |
题
我有两个接入数据库,分享链接表。他们都部署在一起的目录,并通过访问代码在一个词形式。
我怎么能确定的链接时保留这两个数据库复制(在一起)对一个不同的文件夹?因为我不是"开放"的数据库本身(它正在通过访问ADO),我不知道如何写代码,以刷新该链接。
解决方案
更新14APR2009 我发现前回答我给了这里是错误的,所以我更新它与新的编码。
如何进行
- 代码复制下来VBA模块。
从码或从 立即 窗口在VBA IDE,简单的类型:
RefreshLinksToPath Application.CurrentProject.Path
现在,这将重新链接所有联表使用的目录应用程序。
这只需要做一次或者每当你重新链接或添加新的表格。
我建议这样做,从码每次你一开始申请。
然后你可以移动数据库周围没有问题。
代码
'------------------------------------------------------------'
' Reconnect all linked tables using the given path. '
' This only needs to be done once after the physical backend '
' has been moved to another location to correctly link to '
' the moved tables again. '
' If the OnlyForTablesMatching parameter is given, then '
' each table name is tested against the LIKE operator for a '
' possible match to this parameter. '
' Only matching tables would be changed. '
' For instance: '
' RefreshLinksToPath(CurrentProject.Path, "local*") '
' Would force all tables whose ane starts with 'local' to be '
' relinked to the current application directory. '
'------------------------------------------------------------'
Public Function RefreshLinksToPath(strNewPath As String, _
Optional OnlyForTablesMatching As String = "*") As Boolean
Dim collTbls As New Collection
Dim i As Integer
Dim strDBPath As String
Dim strTbl As String
Dim strMsg As String
Dim strDBName As String
Dim strcon As String
Dim dbCurr As DAO.Database
Dim dbLink As DAO.Database
Dim tdf As TableDef
Set dbCurr = CurrentDb
On Local Error GoTo fRefreshLinks_Err
'First get all linked tables in a collection'
dbCurr.TableDefs.Refresh
For Each tdf In dbCurr.TableDefs
With tdf
If ((.Attributes And TableDefAttributeEnum.dbAttachedTable) = TableDefAttributeEnum.dbAttachedTable) _
And (.Name Like OnlyForTablesMatching) Then
collTbls.Add Item:=.Name & .Connect, key:=.Name
End If
End With
Next
Set tdf = Nothing
' Now link all of them'
For i = collTbls.count To 1 Step -1
strcon = collTbls(i)
' Get the original name of the linked table '
strDBPath = Right(strcon, Len(strcon) - (InStr(1, strcon, "DATABASE=") + 8))
' Get table name from connection string '
strTbl = Left$(strcon, InStr(1, strcon, ";") - 1)
' Get the name of the linked database '
strDBName = Right(strDBPath, Len(strDBPath) - InStrRev(strDBPath, "\"))
' Reconstruct the full database path with the given path '
strDBPath = strNewPath & "\" & strDBName
' Reconnect '
Set tdf = dbCurr.TableDefs(strTbl)
With tdf
.Connect = ";Database=" & strDBPath
.RefreshLink
collTbls.Remove (.Name)
End With
Next
RefreshLinksToPath = True
fRefreshLinks_End:
Set collTbls = Nothing
Set tdf = Nothing
Set dbLink = Nothing
Set dbCurr = Nothing
Exit Function
fRefreshLinks_Err:
RefreshLinksToPath = False
Select Case Err
Case 3059:
Case Else:
strMsg = "Error Information..." & vbCrLf & vbCrLf
strMsg = strMsg & "Function: fRefreshLinks" & vbCrLf
strMsg = strMsg & "Description: " & Err.Description & vbCrLf
strMsg = strMsg & "Error #: " & Format$(Err.Number) & vbCrLf
MsgBox strMsg
Resume fRefreshLinks_End
End Select
End Function
这个代码适于从这个来源: http://www.mvps.org/access/tables/tbl0009.htm.
我删除了所有依赖其他职能使它自成一体,这就是为什么它一点时间比它应该。
其他提示
你指的是更新您的Access数据库之间您的Word表格中的链接,或链接表的链接?
对于前者,我知道最好的办法是在模块级的Word文档/ VBA项目中,让您的连接字符串(S),使他们中的const字符串。然后设置为您的ADO连接对象的连接字符串时,通过它的相对的连接字符串常量。
有关后者,我会被诱惑每个接入数据库到另一个内使用相对路径的连接字符串中的数据。例如,
Dim connectionString as String
connectionString = ";DATABASE=" & CurrentProject.Path & "\[Database Name Here].mdb"
如果你说,数据库被复制在一起,以不同的文件夹(我假设到相同的文件夹)。
雷诺的答案不再工作,在2010年访问与Excel或CSV文件。
我已经做了一些修改:
- 适应当前模式的连字符串
- 处理该数据库中的路径不同的Excel文件(包括文件)和程序(不包括名)
这里是代码:
Public Function RefreshLinksToPath(strNewPath As String, _
Optional OnlyForTablesMatching As String = "*") As Boolean
Dim collTbls As New Collection
Dim i As Integer
Dim strDBPath As String
Dim strTbl As String
Dim strMsg As String
Dim strDBName As String
Dim strcon As String
Dim dbCurr As DAO.Database
Dim dbLink As DAO.Database
Dim tdf As TableDef
Set dbCurr = CurrentDb
On Local Error GoTo fRefreshLinks_Err
'First get all linked tables in a collection'
dbCurr.TableDefs.Refresh
For Each tdf In dbCurr.TableDefs
With tdf
If ((.Attributes And TableDefAttributeEnum.dbAttachedTable) = _
TableDefAttributeEnum.dbAttachedTable) _
And (.Name Like OnlyForTablesMatching) Then
Debug.Print "Name: " & .Name
Debug.Print "Connect: " & .Connect
collTbls.Add Item:=.Name & ";" & .Connect, Key:=.Name
End If
End With
Next
Set tdf = Nothing
' Now link all of them'
For i = collTbls.Count To 1 Step -1
strConnRaw = collTbls(i)
' Get table name from the full connection string
strTbl = Left$(strConnRaw, InStr(1, strConnRaw, ";") - 1)
' Get original database path
strDBPath = Right(strConnRaw, Len(strConnRaw) - (InStr(1, strConnRaw, "DATABASE=") + 8))
' Get the name of the linked database
strDBName = Right(strDBPath, Len(strDBPath) - InStrRev(strDBPath, "\"))
' Get remainder of connection string
strConn = Mid(strConnRaw, InStr(1, strConnRaw, ";") + 1, InStr(1, strConnRaw, "DATABASE=") _
- InStr(1, strConnRaw, ";") - 1)
' Reconstruct the full database path with the given path
' CSV-Files are not linked with their name!
If Left(strConn, 4) = "Text" Then
strDBPath = strNewPath
Else
strDBPath = strNewPath & "\" & strDBName
End If
' Reconnect '
Set tdf = dbCurr.TableDefs(strTbl)
With tdf
.Connect = strConn & "Database=" & strDBPath
.RefreshLink
collTbls.Remove (.Name)
End With
Next
RefreshLinksToPath = True
fRefreshLinks_End:
Set collTbls = Nothing
Set tdf = Nothing
Set dbLink = Nothing
Set dbCurr = Nothing
Exit Function
fRefreshLinks_Err:
RefreshLinksToPath = False
Select Case Err
Case 3059:
Case Else:
strMsg = "Error Information..." & vbCrLf & vbCrLf
strMsg = strMsg & "Function: fRefreshLinks" & vbCrLf
strMsg = strMsg & "Description: " & Err.Description & vbCrLf
strMsg = strMsg & "Error #: " & Format$(Err.Number) & vbCrLf
MsgBox strMsg
Resume fRefreshLinks_End
End Select
End Function
我可惜还是在2007年的访问,我开始用上面这不是为我工作的代码块之一。拥有较少的访问VBA功率我把它简化为只有第一环路中获取表路径和地方对其进行更新。运行到这个未来的家伙可以发表评论或更新。
选项比较数据库
'------------------------------------------------------------'
' Reconnect all linked tables using the given path. '
' This only needs to be done once after the physical backend '
' has been moved to another location to correctly link to '
' the moved tables again. '
' If the OnlyForTablesMatching parameter is given, then '
' each table name is tested against the LIKE operator for a '
' possible match to this parameter. '
' Only matching tables would be changed. '
' For instance: '
' RefreshLinksToPath(CurrentProject.Path, "local*") '
' Would force all tables whose ane starts with 'local' to be '
' relinked to the current application directory. '
'
' Immediate window type
' RefreshLinksToPath Application.CurrentProject.Path
'------------------------------------------------------------'
Public Function RefreshLinksToPath(strNewPath As String, _
Optional OnlyForTablesMatching As String = "*") As Boolean
Dim strDBPath As String
'Dim strTbl As String
'Dim strMsg As String
Dim strDBName As String
Dim dbCurr As DAO.Database
Dim dbLink As DAO.Database
Dim tdf As TableDef
Set dbCurr = CurrentDb
Dim strConn As String
Dim strNewDbConn1 As String
Dim strNewDbConn2 As String
Dim strNewDbConn As String
' On Local Error GoTo fRefreshLinks_Err
'First get all linked tables in a collection'
dbCurr.TableDefs.Refresh
For Each tdf In dbCurr.TableDefs
With tdf
If ((.Attributes And TableDefAttributeEnum.dbAttachedTable) = TableDefAttributeEnum.dbAttachedTable) _
And (.Name Like OnlyForTablesMatching) Then
strConn = tdf.Connect
strDBPath = Right(strConn, Len(strConn) - (InStr(1, strConn, "DATABASE=") + 8))
strDBName = Right(strDBPath, Len(strDBPath) - InStrRev(strDBPath, "\"))
Debug.Print ("===========================")
Debug.Print (" connect is " + strConn)
Debug.Print (" DB PAth is " + strDBPath)
Debug.Print (" DB Name is " + strDBName)
strDBNewPath = strNewPath & "\" & strDBName
Debug.Print (" DB NewPath is " + strDBNewPath)
strNewDbConn1 = Left(strConn, (InStr(1, strConn, "DATABASE=") - 1))
strNewDbConn2 = "DATABASE=" & strDBNewPath
strNewDbConn = strNewDbConn1 & strNewDbConn2
Debug.Print (" DB strNewDbConn is " + strNewDbConn)
'Change the connect path
tdf.Connect = strNewDbConn
tdf.RefreshLink
End If
End With
Next
End Function