Question

我有很多文件存储为Access数据库中的附件。我将数据移动到SQL服务器，为此我需要提取附加的文件并将它们转换为文件系统文件。

此代码段适用于图像和pdf文件，但不适用于Word或Excel等Office文档。我认为它与编码有关，但我没有线索。有什么想法吗？

Dim dbs As Database
Dim rs As Recordset
Set dbs = CurrentDb
Set rs = dbs.OpenRecordset("table1")
With rs
Do While Not .EOF
    Set rsRec = rs.Fields("AttFiles").Value
    While Not rsRec.EOF
        NameOfFile = "C:\temp\" & rsFil.Fields("FileName")
        Open NameOfFile For Binary Access Write As #1
        Put #1, , rsRec.Fields("FileData").Value
        Close #1
        rsRec.MoveNext
    Wend
    .MoveNext
Loop
End With
rs.Close
dbs.Close

Answer 1

如果文件实际上是附件类型，那么您也可以使用Microsoft Access对象库的Recordset2。像，

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上述代码会将文件保存到Public Sub exportDocument(tableName As String, fieldName As String, uniqueID As Long) On Error GoTo Err_SaveImage Dim rsParent As DAO.Recordset2 Dim rsChild As DAO.Recordset2 Dim saveAsName As String Set rsParent = CurrentDb.OpenRecordset("SELECT " & tableName & ".* " & _ "FROM " & tableName & " WHERE " & tableName & "." & fieldName & " = " & uniqueID) Set rsChild = rsParent.Fields("fileData").Value If rsChild.RecordCount <> 0 Then If Dir(Environ("userprofile") & "\My Documents\tmp\", vbDirectory) <> "." Then MkDir Environ("userprofile") & "\My Documents\tmp\" saveAsName = Environ("userprofile") & "\My Documents\tmp\" & rsChild.Fields("FileName") rsChild.Fields("fileData").SaveToFile saveAsName FollowHyperlink saveAsName End If Exit_SaveImage: Set rsChild = Nothing Set rsParent = Nothing Exit Sub Err_SaveImage: If Err = 3839 Then Resume Next Else MsgBox "Some Other Error occured!" & vbCrLf & vbCrLf & Err.Number & " - " & Err.Description, vbCritical Resume Exit_SaveImage End If End Sub中指定的位置。我在saveAsName条件下有特定的唯一ID。如果要导出所有文档，可以相应地更改代码，但可能必须遍历记录集。我希望这有帮助！

将Access Attachment数据类型转换为文件系统文件

1 个答案: