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Microsoft KB Archive/100969

From BetaArchive Wiki

PRB: Error Message If Path Info for Attached Databases Changes

PSS ID Number: Q100969 Article last modified on 10-12-1993

1.00 1.10 WINDOWS

The information in this article applies to:
- Microsoft Access versions 1.0 and 1.1

SYMPTOMS

The following error message is displayed: Couldn’t find table

CAUSE

The Access Distribution Kit (ADK) recommends splitting up databases. You can place your forms, reports, and macros in an objects file, such as PROGRAM.MDB, and place your tables in a data file called DATA.MDB. When you create a database that has attached tables, the specific path to these attached tables is stored in the database. If the path to these attached tables has changed, you receive the above error message. Splitting the database simplifies updating, since you can redistribute the objects file and copy over the PROGRAM.MDB file without destroying your data.

RESOLUTION

The ADK requires that your database have an AUTOEXEC macro. From within the AUTOEXEC macro, call an Access Basic function to verify that the attached tables are actually attached. If they are not attached, you must attach them. When you start your application, make sure that the program’s working directory property is the same directory as the .MDB file. The Microsoft Access Setup Wizard automatically sets this property automatically in Program Manager. Use the CurDir() function to determine from what directory the program is being executed, then attach the files to that directory.

MORE INFORMATION

  1. Create a new directory (for example, C:).
  2. Copy the sample database NWIND.MDB from your ACCESS directory to the C:directory.
  3. Start MSACCESS.EXE. From the File menu, choose New. Create a new database called PROGRAM.MDB in the C:directory.
  4. From the Database window, choose Module and then choose New. Enter the following function: Function Reattach () On Error GoTo attach_files DoCmd SelectObject a_table, “Employees”, True Exit Function attach_files: ’NOTE: In the following sample code, an underscore () is ’used as a line continuation character. Remove the underscore ’when re-creating this code in Access Basic. DoCmd TransferDatabase A_ATTACH, “Microsoft Access”, CurDir &“.mdb”, A_TABLE, “Employees”, _ “Employees” Exit Function End Function
  5. Save the module as Module1.
  6. Create the following new macro and save it as AUTOEXEC: Macro Name Action Argument ———————————- Autoexec RunCode Reattach()
  7. Close PROGRAM.MDB, then reopen it. Note that PROGRAM.MDB attaches the Employees table from NWIND.MDB.

Additional reference words: 1.0 1.10 attach ADK datafile KBCategory: KBSubcategory: IeaAccmdb GnrlNw Copyright Microsoft Corporation 1993.