Trying to link table between Access DBs using VBA. Getting ISAM not found error - vba

Question

I have a split database where both the front end and back end are accdb files. Because one of my tables uses the AppendOnly = Yes property, I cannot use the link table manager or the refreshlink property when I move the backend. The backend moves from time to time because my IT loves to reshuffle servers.
So my solution is to write a function which prompts for the backend location, deletes all the currently linked tables, and then loops through all the backend tables and links them to the frontend. On this last part I receive a run time error 3170 could not find suitable ISAM. I don't know why.
Code is below:
Public Function MoveDB()
'this function will replace the linked table manager. It will open a file select dialog box to allow the user to pick the new location of the DB backend.
'It will then break all the current links and then recreate them. We need to do this vice use the relink function because the cases table uses AutoAppend which stores old path data
' and breaks the relink function which is why linked table manager does not work.
' FileDialog Requires a reference to Microsoft Office 11.0 Object Library.
'variables to get the database path
Dim fDialog As Office.FileDialog
Dim varFile As Variant
Dim DriveLetter As String
Dim NetworkPath As String
Dim DrivePath As String
Dim SubPath As String
'variables to link the database
Dim db As DAO.Database
Dim BEdb As DAO.Database
Dim oldtdf As DAO.TableDef
Dim tblName As String
Dim newtdf As DAO.TableDef
Dim BEtdf As DAO.TableDef
Set db = CurrentDb()
' Set up the File Dialog.
Set fDialog = Application.FileDialog(msoFileDialogFilePicker)
With fDialog
' Do not Allow user to make multiple selections in dialog box
.AllowMultiSelect = False
'set the default folder that is opened
.InitialFileName = CurrentProject.Path & "\BE"
' Set the title of the dialog box.
.Title = "Please select the Database Backend"
' Clear out the current filters, and add our own.
.Filters.Clear
.Filters.Add "Access Databases", "*.accdb"
' Show the dialog box. If the .Show method returns True, the
' user picked a file. If the .Show method returns
' False, the user clicked Cancel.
If .Show = True Then
'We need to determine the full network path (including server name) to the DB backend. The reason is that different users may have the share drive mapped with different letters.
'If the backend is mapped using the drive letter of the user moving the DB then other users may not have a valid path. The full network path is universal
'Get the mapped drive letter from the path of the selected DB file
DriveLetter = Left$(Trim(fDialog.SelectedItems(1)), 2)
'Get the path of the selected DB file minus the drive letter
SubPath = Mid$(Trim(fDialog.SelectedItems(1)), 3)
'Get the full network path of the mapped drive letter
DrivePath = GETNETWORKPATH(DriveLetter)
'Combine the drive path and the sub path to get the full path to the selected DB file
NetworkPath = DrivePath & SubPath
'MsgBox (NetworkPath)
Else
MsgBox "You clicked Cancel in the file dialog box."
End If
End With
'Now we need to delete all the linked tables
For Each oldtdf In db.TableDefs
With oldtdf
If oldtdf.Attributes And dbAttachedODBC Or oldtdf.Attributes And dbAttachedTable Then
'this is a linked table
tblName = .Name
DoCmd.DeleteObject acTable, tblName
End If
End With
Next oldtdf
tblName = ""
'Now we link all the tables from the backend to the front end
Set BEdb = OpenDatabase(NetworkPath)
For Each BEtdf In BEdb.TableDefs
tblName = BEtdf.Name
If Left(tblName, 4) <> "~TMP" Then
Set newtdf = db.CreateTableDef(strTable)
newtdf.Connect = "Database = " & NetworkPath
newtdf.SourceTableName = tblName
newtdf.Name = tblName
db.TableDefs.Append newtdf
End If
Next BEtdf
End Function
The error occurs on the
db.TableDefs.Append newtdf
line. I'm looking to either make this code work, or a way around the known bug that prevents refreshing links when using the AppendOnly=Yes property.
Thanks in advance for any help.

Answer 1

I think you are just missing the semicolon on your string and remove extra spaces
newtdf.Connect = ";Database=" & NetworkPath

Answer 2

Alternatively, you can use DoCmd.TransferDatabase method and be sure to leave out the MSys tables as they have no direct application use between split files:
If Left(tblName, 4) <> "~TMP" And Left(tblName, 4) <> "MSys" Then
DoCmd.TransferDatabase acLink, "Microsoft Access", NetworkPath, _
acTable, tblName, tblName, False
End If

Answer 3

found this and worked for me
DAODataSet.SQL.Text := 'SELECT * FROM Country IN "" ";DATABASE=C:\SIMPLE.MDB;PWD=MyPassword"';
DAODataSet.Open;