[dba-Tech] Empty folders

Erwin Craps - IT Helps Erwin.Craps at ithelps.be
Thu Sep 23 12:02:36 CDT 2004


But one must be carefull not to generarate infinite loops with this....

Folder depth is finite, so that should no cause any prob....

Erwin 

-----Oorspronkelijk bericht-----
Van: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com] Namens Drew Wutka
Verzonden: donderdag 23 september 2004 18:40
Aan: Discussion of Hardware and Software issues
Onderwerp: RE: [dba-Tech] Empty folders

Sort of, the key difference is the 'spawning'.  A loop just runs over
and over.  But each loop starts and ends, before the next one.

In a recursive function, you are creating 'child' processes that have to
start and finish before their parent can finish.

For instance, take a function that runs through the files and folders on
your machine:

Call1 (to C:\ -- runs all files, and calls itself for all folders
Call2 (to C:\WINNT\ -- same, but Call1 hasn't finished yet, because it
called Call2)
Call3 (to C:\WINNT\SYSTEM32\ -- now call 2 and 1 are still 'open', and
this call is 'holding them')
Call4 (to C:\WINNT\TEMP\)
......
......
Call30 (to C:\WINNT\XYZ\ when this completes, all 'parent' calls can be
closed, because it's the last folder to be hit, so now the function in
Call1 can continue, which may produce another 'tree' of function calls)

Does that make sense?

Drew

-----Original Message-----
From: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com]On Behalf Of Jon Tydda
Sent: Thursday, September 23, 2004 10:24 AM
To: 'Discussion of Hardware and Software issues'
Subject: RE: [dba-Tech] Empty folders


I gotcha, looping in other words...


Jon

-----Original Message-----
From: Drew Wutka [mailto:dbatech at wolfwares.com]
Sent: 23 September 2004 16:18
To: Discussion of Hardware and Software issues
Subject: RE: [dba-Tech] Empty folders


LOL.  Recursion is when you have a function call itself.

Function SomeFunction()
	DoThis()
	DoThat()
	For Each Something In SomethingElse
		SomeFunction
	Next
End function

Not it will repeat itself until all elements have been used.

Drew

-----Original Message-----
From: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com]On Behalf Of Jon Tydda
Sent: Tuesday, September 21, 2004 9:41 AM
To: 'Discussion of Hardware and Software issues'
Subject: RE: [dba-Tech] Empty folders


It's a little bit out of my league - I just hack vba in Excel...

I hate it when you make me look words up...

Hmmn, didn't help... "Recursive: An expression, such as a polynomial,
each term of which is determined by application of a formula to
preceding terms."
Polynomial? eep, maths!


Jon

-----Original Message-----
From: Drew Wutka [mailto:dbatech at wolfwares.com]
Sent: 21 September 2004 15:37
To: Discussion of Hardware and Software issues
Subject: RE: [dba-Tech] Empty folders


right a little recursive code.

Drew

-----Original Message-----
From: dba-tech-bounces at databaseadvisors.com
[mailto:dba-tech-bounces at databaseadvisors.com]On Behalf Of Jon Tydda
Sent: Tuesday, September 21, 2004 9:07 AM
To: Dba-Tech (E-mail)
Subject: [dba-Tech] Empty folders


Hi all, does anyone know of a way to find empty folders in win2k?

I'm re-ripping a lot of my cd collection, and some of the tracks/albums
are being named more correctly as the online catalogs are more up to
date than before, which is leaving me with a lot of empty folders. I
have deleted the ones in the main tree, but as for going through all the
artists folders and deleting the empty album names, that's going to be a
pain... I was thinking that there has to be an easier way to do it than
just looking...


Jon


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