ACC: How to Recover a Table Deleted from a Database
ID: Q179161
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The information in this article applies to:
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Microsoft Access versions 7.0, 97
SUMMARY
Moderate: Requires basic macro, coding, and interoperability skills.
This article shows you how to create a sample Visual Basic for Applications
function that you can use to recover a table deleted from a Microsoft Access for Windows 95 and Microsoft Access 97 database under the following conditions:
- The database has not been closed since the deletion of the table.
- The database has not been compacted since the deletion of the table.
- The table was deleted using the Microsoft Access user interface.
NOTE: If multiple tables have inadvertently been deleted, this function
recovers only the last table that was deleted. The other tables are lost.
Microsoft provides programming examples for illustration only, without warranty
either expressed or implied, including, but not limited to, the implied warranties of
merchantability and/or fitness for a particular purpose. This article assumes that you
are familiar with the programming language being demonstrated and the tools used to
create and debug procedures. Microsoft support professionals can help explain the functionality
of a particular procedure, but they will not modify these examples to provide added
functionality or construct procedures to meet your specific needs. If you have limited
programming experience, you may want to contact a Microsoft Certified Solution Provider
or the Microsoft fee-based consulting line at (800) 936-5200. For more information about
Microsoft Certified Solution Providers, please see the following page on the World Wide Web:
http://www.microsoft.com/mcsp/
For more information about the support options available from Microsoft, please see the
following page on the World Wide Web:
http://www.microsoft.com/support/supportnet/overview/overview.asp
MORE INFORMATION
The following sample function recovers the last table deleted within a
Microsoft Access database. To create the sample function, follow these
steps.
NOTE: These steps assume that you are creating the sample function for
future use. If instead you are adding the code directly to a database in
which a table has recently been deleted, skip step 1, because if you have
closed Microsoft Access or the database, the deleted table is not
recoverable.
- Open your database in Microsoft Access.
- In the Database window, click the Modules tab, and then click New.
- Type or paste the following code in the module that you have just
created:
NOTE: In the following sample code, an underscore (_) at the end of a
line is used as a line-continuation character indicates that the code
continues from one line to the next. You can type lines that contain
this character as one logical line or you can divide the lines of code
and include the line continuation character. For additional
information refer to the Microsoft Access 97 Readme File(Acread80.wri).
This file is installed by default in the C:\Program Files\Microsoft
Office\Office folder.
Function undo()
Dim db As Database, strTablename As String
Dim i As Integer, StrSqlString As String
Set db = CurrentDb()
For i = 0 To db.TableDefs.Count - 1
If Left(db.TableDefs(i).Name, 4) = "~tmp" Then
strTablename = db.TableDefs(i).Name
StrSqlString = "SELECT DISTINCTROW [" & strTablename & _
"].* INTO MyUndeletedTable FROM [" & strTablename & "];"
DoCmd.SetWarnings False
DoCmd.RunSQL StrSqlString
DoCmd.SetWarnings True
MsgBox "A table has been restored as MyUndeletedTable", _
vbOKOnly,"Restored"
GoTo Exit_undo
End If
Next i
MsgBox "No Recoverable Tables Found", vbOKOnly, "Not Found"
Exit_undo:
Set db = Nothing
Exit Function
Err_undo:
MsgBox Err.Description
Resume Exit_undo
End Function
- On the Debug menu, click "Compile and Save All Modules" (or in Microsoft
Access for Windows 95, on the Run menu click "Compile All Modules"; then
on the File menu, click "Save All Modules").
- Save the Module as RecoverTable.
To test this function, type the following line in the Debug window,
and then press ENTER:
?Undo()
REFERENCES
For more information about TableDefs, search the Help Index for "Tabledef
Object."
Additional query words:
Restore Delete Recover
Keywords : PgmHowto
Version : WINDOWS:7.0,97
Platform : WINDOWS
Issue type : kbhowto
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