无法使用用户安全性解密Microsoft Access*.mdb数据库



我有一个旧的.mdb数据库,里面有很多表/表单/查询和外部连接(在Access 2003中创建),具有用户级安全性。

现在我决定转到SQL Server,但我无法解密数据库(在Access 2010&2013中)以与Access to SQL工具一起使用。

解密过程正在进行,但最终我得到一个错误:"您无法访问此表"。

我试过修理&压紧

你能帮我吗?

谢谢。

据我所知,您没有太多选择:

  • 您可以通过创建一个新数据库并使用与原始用户完全相同的用户名和PID来重建.mdw文件,然后将新的.mdw与旧数据库一起使用
    您可以使用Serge Gavrilov的一些工具来帮助您从数据库中查找用户名和PID。

  • 看看UtterAccess.com上的论坛。似乎有很多关于丢失mdw的讨论。

  • 你可以使用一些数据修复服务,比如EverythingAccess。花了一些钱,但我相信他们可以恢复你的数据。

一旦可以访问数据库,就可以编写代码从数据库中提取所有表单、查询等。这是我写的一段代码。您需要对其进行大量调整,因为它基于一个允许您选择数据库名称的表单。您将不得不对查询、表单等重复此操作…

' Database.
Dim dbRep As DAO.Database
Dim dbNew As DAO.Database
' For copying tables and indexes.
Dim tblRep As DAO.TableDef
Dim tblNew As DAO.TableDef
Dim fldRep As DAO.Field
Dim fldNew As DAO.Field
Dim idxRep As DAO.Index
Dim idxNew As DAO.Index
' For copying data.
Dim rstRep As DAO.Recordset
Dim rstNew As DAO.Recordset
Dim rec1 As DAO.Recordset
Dim rec2 As Recordset
Dim intC As Integer
' For copying table relationships.
Dim relRep As DAO.Relation
Dim relNew As DAO.Relation
' For copying queries.
Dim qryRep As DAO.QueryDef
Dim qryNew As DAO.QueryDef
' For copying startup options.
Dim avarSUOpt
Dim strSUOpt As String
Dim varValue
Dim varType
Dim prpRep As DAO.Property
Dim prpNew As DAO.Property
' For importing forms, reports, modules, and macros.
Dim appNew As New Access.Application
Dim doc As DAO.Document
' Open the database, not in exclusive mode.
Set dbRep = OpenDatabase(Forms!CMDB_frmUpgrade.TxtDatabase, False)

' Open the new database
Set dbNew = CurrentDb
DoEvents
' Turn on the hourglass.
DoCmd.Hourglass True
'********************
Debug.Print "Copy Tables"
'********************
If Forms!CMDB_frmUpgrade.CkTables = True Then
Forms!CMDB_frmUpgrade.LstMessages.addItem "Copying Tables:"
' Loop through the collection of table definitions.
For Each tblRep In dbRep.TableDefs
Set rec1 = dbRep.OpenRecordset("SELECT MSysObjects.Name FROM MsysObjects WHERE ([Name] = '" & tblRep.Name & "') AND ((MSysObjects.Type)=4 or (MSysObjects.Type)=6)")
If rec1.EOF Then
XF = 0
Else
XF = 1
End If
' Ignore system tables and CMDB tables.
If InStr(1, tblRep.Name, "MSys", vbTextCompare) = 0 And _
InStr(1, tblRep.Name, "CMDB", vbTextCompare) = 0 And _
XF = 0 Then
'***** Table definition
' Create a table definition with the same name.
Set tblNew = dbNew.CreateTableDef(tblRep.Name)
Forms!CMDB_frmUpgrade.LstMessages.addItem "--> " & tblRep.Name & ""
' Set properties.
tblNew.ValidationRule = tblRep.ValidationRule
tblNew.ValidationText = tblRep.ValidationText
' Loop through the collection of fields in the table.
For Each fldRep In tblRep.Fields
' Ignore replication-related fields:
' Gen_XXX, s_ColLineage, s_Generation, s_GUID, s_Lineage
If InStr(1, fldRep.Name, "s_", vbTextCompare) = 0 And _
InStr(1, fldRep.Name, "Gen_", vbTextCompare) = 0 Then
'***** Field definition
Set fldNew = tblNew.CreateField(fldRep.Name, fldRep.Type, _
fldRep.Size)
' Set properties.
On Error Resume Next
fldNew.Attributes = fldRep.Attributes
fldNew.AllowZeroLength = fldRep.AllowZeroLength
fldNew.DefaultValue = fldRep.DefaultValue
fldNew.Required = fldRep.Required
fldNew.Size = fldRep.Size
' Append the field.
tblNew.Fields.Append fldNew
'On Error GoTo Err_NewShell
End If
Next fldRep
'***** Index definition
' Loop through the collection of indexes.
For Each idxRep In tblRep.Indexes
' Ignore replication-related indexes:
' s_Generation, s_GUID
If InStr(1, idxRep.Name, "s_", vbTextCompare) = 0 Then
' Ignore indices set as part of Relation Objects
If Not idxRep.Foreign Then
' Create an index with the same name.
Set idxNew = tblNew.CreateIndex(idxRep.Name)
' Set properties.
idxNew.Clustered = idxRep.Clustered
idxNew.IgnoreNulls = idxRep.IgnoreNulls
idxNew.Primary = idxRep.Primary
idxNew.Required = idxRep.Required
idxNew.Unique = idxRep.Unique
' Loop through the collection of index fields.
For Each fldRep In idxRep.Fields
' Create an index field with the same name.
Set fldNew = idxNew.CreateField(fldRep.Name)
' Set properties.
fldNew.Attributes = fldRep.Attributes
' Append the index field.
idxNew.Fields.Append fldNew
Next fldRep
' Append the index to the table.
tblNew.Indexes.Append idxNew
End If
End If
Next idxRep
' Append the table.
dbNew.TableDefs.Append tblNew
End If
DoEvents
Next tblRep
'********************
Debug.Print "Copy Data"
'********************
' Loop through the list of table definitions.
For Each tblRep In dbRep.TableDefs
Set rec1 = dbRep.OpenRecordset("SELECT MSysObjects.Name FROM MsysObjects WHERE ([Name] = '" & tblRep.Name & "') AND ((MSysObjects.Type)=4 or (MSysObjects.Type)=6)")
If rec1.EOF Then
XF = 0
Else
XF = 1
End If
' Ignore system tables and CMDB tables.
If InStr(1, tblRep.Name, "MSys", vbTextCompare) = 0 And _
InStr(1, tblRep.Name, "CMDB", vbTextCompare) = 0 And _
XF = 0 Then
' Open a recordset for the new table.
Set rstNew = dbNew.OpenRecordset(tblRep.Name, dbOpenTable)
' Open a recordset for the old table.
Set rstRep = dbRep.OpenRecordset(tblRep.Name, dbOpenTable)
' Continue if there are records.
If Not rstRep.BOF Then
' Move to the first record.
rstRep.MoveFirst
' Loop through all the old table records.
Do Until rstRep.EOF
' Add a record to the new table.
rstNew.AddNew
' For each field in the new table, set the value
' to the value in the related field of the old table.
For intC = 0 To rstNew.Fields.count - 1
rstNew.Fields(intC).Value = _
rstRep.Fields(rstNew.Fields(intC).Name).Value
Next
' Update the new table.
rstNew.Update
' Move to the next old table record.
rstRep.MoveNext
Loop ' rstRep
End If
' Close the new recordset.
rstNew.Close
' Close the old recordset.
rstRep.Close
End If
DoEvents
Next tblRep
End If

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