VBA - Visual Basic for Applications
Recently I had to link tables from one access file in another access file.
I did not intend to document such a trivial task on my webpage, but since the function I copied from the internet ran into an endless loop after I only provided an invalid file path I decided to implement something myself.
' Alexander Bolte
' Linking given table from given source Access database in CurrentDb under provided target name.
' If a linked table already exists under given name, the link will be broken and replaced with the new one.
' @Param strDatabaseSource
' String providing the full path of the source access database.
' @Param strTableSource
' String providing the source table name in the source access database.
' @Param strTableDestination
' String providing the target table name in CurrentDB.
' True, if linkage succeeded, else false.
Public Function LinkTable( _
ByVal strDatabaseSource As String, _
ByVal strTableSource As String, ByVal strTableDestination As String _
) As Boolean
Dim dbSource As DAO.Database
Dim dbTarget As DAO.Database
Dim dbDestination As DAO.Database
Dim tdf As DAO.TableDef
On Error GoTo LinkTable_Err
Set dbSource = DBEngine.Workspaces(0).OpenDatabase(strDatabaseSource)
Set dbDestination = CurrentDb
Set tdf = dbDestination.CreateTableDef(strTableDestination)
tdf.Connect = ";DATABASE=" & strDatabaseSource
tdf.SourceTableName = strTableSource
LinkTable = True
LinkTable_Err: If Err.Number <> 0 Then
MsgBox Err.Description, vbCritical, cDialogTitle
LinkTable = False
If Not (dbSource Is Nothing) Then
Set dbSource = Nothing
Set dbDestination = Nothing
Set tdf = Nothing
- Hits: 8794
The following looked simple enough for me.
Here a solution, which works for me however you have to be careful since it relies on a certain environment variable to be present. If this environment variable is not available the method automatically assumes the os to operate in 32 bit.
Unfortunately thie below did not work for me as it returned "x86" no matter if I started it on a 64 bit or 32 bit os.
- Hits: 8752
If you want to join two tables in MS Access using the LIKE operator you will fail receiving an error message stating the following.
"JOIN expression not supported."
MS Access SQL
The SQL producing above error looks as follows.
You can fix this by changing the SQL to define the JOIN condition in the WHERE part of a statement.
- Hits: 8766
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Some development tasks reoccur for every customer. Since I am a lazy bum it will be nice to have a central source where I can reuse source code from.
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