Visual Basic Code of the Week (COTW)
Issue #20
All content and source code is Copyright (c) 1998 by C&D Programming Corp. None of the source can be reprinted in any manner without express written permission of C&D Programming Corp.

Requirements for this Issue

The source code in this issue is designed for Visual Basic 5.0 and higher. With some modifications to the parameters it can be used in VB 3 and 4.

In this Issue

This issue shows how to attach an external table to an Access database. This is useful for situations where you need to access tables in other Access databases or other database formats. We will show an example of how to attach a dBASE III type table. Doing the attachment allows you to access data using a query across multiple databases and database types.


Function AttachTable(DestDB As String, SrcDB As String, sTable As String, Optional sDBType as String) As Integer


Return Value

None unless an error occurs. If an error occurs it will be raised to the caller. Some situations that this subroutine will fail are:

Sample Usage

The below example uses the AttachTable to attach an Access table and a dBASE table. It is assumed that the dBASE tables are located in the directory C:\DATA

    On Error Resume Next

    ' Attach the OLDSALES.DBF table in the C:\DATA directory to C:\DATA\SALES.MDB
    AttachTable "C:\DATA\SALES.MDB", "C:\DATA", "OLDSALES", "dBASE III"
    If Err <> 0 Then
        MsgBox "Error: " & Err.Description
    End If

    ' Attach the Invoices table to REPORT.MDB from SALES.MDB
    AttachTable "C:\DATA\REPORT.MDB", "C:\DATA\SALES.MDB", "Invoices"
    If Err <> 0 Then
        MsgBox "Error: " & Err.Description
    End If

    ' Attach the Customer table to REPORT.MDB from SALES.MDB
    AttachTable "C:\DATA\REPORT.MDB", "C:\DATA\SALES.MDB", "Customers"
    If Err <> 0 Then
        MsgBox "Error: " & Err.Description
    End If

Source Code

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