Compact Database automatically using this MS Access Function and VB Script

If like me you sometimes need to run multiple SQL statements in MS Access on a regular basis maybe at a particular time some of which are deletes, you will need to find a way to automate regular compacts. Here’s some code scavenged from the interweb that will allow you to do this.

Firstly create the following function in your target MS Access database.

Public Function CompactDatabase()
Dim vStatusBar As Variant
DoCmd.SetWarnings False

If FileLen(CurrentDb.Name) > 2000000 Then
Application.SetOption ("Auto Compact"), 1
Application.SetOption "Show Status Bar", True
vStatusBar = SysCmd(acSysCmdSetStatus, "The application will be compacted on close during compaction please do not interrupt")
Else
Application.SetOption ("Auto Compact"), 0
End If

End Function

Next open up notepad paste in the following code save it as a txt file and then in explorer edit the suffix to vbs. Then simply double click on the file within explorer to run it. You should see the access database you have identified in the VB script open and then immediately close at which point it carries out the compact. The eagle eyed will have spotted that the above function doesn’t actually perform a compact. All it does is set the compact on close option to True within Access settings. The VB Script then instructs the database to close and Access compacts the database on exit.


set oAccess = createobject("Access.Application")

oAccess.OpenCurrentDatabase "C:Path\TargetDatabaseyouwantCompacted.mdb"
oAccess.visible = true
wscript.sleep 1000
oAccess.Run "CompactDatabase"
oAccess.closecurrentdatabase

set oAccess = nothing

A VB script such as this could be used to remotely run any MS Access function or functions – simply substitute the “CompactDatabase” parameter (or add further run commands) with the name(s) of the function(s) in the database you wish to trigger and then run the VB Script. Be warned the speed at which functions and commands within functions run may vary when called from a vbscript so you may have to use some experimentation to input things like pauses and waits if you start to get very imaginative with the functions run.

About Mark

Mark Brooks a forty something individual working and living in and around Edinburgh
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