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• unknown filsystem with grub rescue caption cannot boot

  - by Dom

  I just recently partitioned my hard drive and I got this error when booting Ubuntu on that drive. unknown filesystem. With the grub rescue terminal. I did some research and tried to download super grub disk but I cant seem to fix it with that. I have two hard disks. One with Windows Vista on it and the other with Ubuntu which is the one I partitioned. There was 100GB reserved for all the Ubuntu partitions that I needed and the rest was split into two partitions, one for backup folders for my Windows machine and the other for music production which is the one that I created. The space used to created that was shrunk from my backup partition so I didn't mess with any of the Ubuntu partitions. As of now there are a total of 5 partitions. I also downloaded Rescatux which is another Super Grub Disk for Grub 2 not knowing which grub I had. It still didn't work. In Super Grub Disk I tried to swap the hard disk because that was what was said to do in order to fix the grub, that didn't work it said it was unsuccessful. I even tried to unplug the Windows hard disk and run Super Grub Disk and that wasn't successful either. Is there another way I can fix this? Please any help would be greatly appreciated. I would like to have a nice step by step response.

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• Redirect one input from one terminal to another

  - by Niki Yoshiuchi

  I have sshed into a linux box and I'm using dvtm and bash (although I have also tried this with Gnu screen and bash). I have two terminals, current /dev/pts/29 and /dev/pts/130. I want to redirect the input from one to the other. From what I understand, in /dev/pts/130 I can type: cat </dev/pts/29 And then when I type in /dev/pts/29 the characters I type should show up in /dev/pts/130. However what ends up happening is that every other character I type gets redirected. For example, if I type "hello" I get this: /dev/pts/29 | /dev/pts/130 $ | $ cat </dev/pts/29 $ el | hlo This is really frustrating as I need to do this in order to redirect the io of a process running in gdb (I've tried both run /dev/pts/# and set inferior-tty /dev/pts/# and both resulted in the aforementioned behavior). Am I doing something wrong, or is this a bug in bash/screen/dvtm?

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• suphp how disable ls /

  - by Pol Hallen

  Using suphp, I set a php.ini to every virtual host. In php.ini I also setted: open_basedir = /home/site1 php script runs, but if I ve a script with ls / I can see whole root directory. How can disable this hole security? <VirtualHost *:80> ServerName site1 ServerAlias www.site1.com DirectoryIndex index.html index.htm DocumentRoot /home/site1/ suPHP_Engine on AddHandler x-httpd-php .php .php3 .php4 .php5 suPHP_AddHandler x-httpd-php # THIS READ php.ini suPHP_ConfigPath /home/site1/ <Directory /home/site1/> Options -Includes -Indexes -FollowSymLinks -ExecCGI -MultiViews AllowOverride none Order allow,deny Allow from all </Directory> </VirtualHost>

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• Ubuntu Wireless card not found

  - by user32121

  Hello all, I'm trying to setup Ubuntu on an old PC. I ran the following command, lspci, in order to get info on the wireless card installed. 00:0a.0 Ethernet controller: Marvell Technology Group Ltd. 88w8335 [Libertas] 802.11b/g Wireless (rev 03) Does anyone know where I can get drivers for this card/chip? And also, how to install (I'm rather new to linux). Also, I'm sure the card is working because I just formatted over xp, and everything was working well. Thanks in advanced!

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• Multiple sites with the same codebase in Python

  - by Jimmy

  I am trying to run a large amount of sites which share about 90% of their code. They are simply designed to query an API and return the results. They will have a common userbase / database but will be configured slightly different and will have different CSS (perhaps even different templating). My initial idea was to run them as separate applications with a common library but I have read about the sites framework which would allow them to run from a single instance of Django which may help to reduce memory usage. https://docs.djangoproject.com/en/dev/ref/contrib/sites/ Is the site framework the right approach to a problem like this, and does it have real benefits over running separate applications? Initially I thought it was, but now I think otherwise. I have heard the following: Your SITE_ID is set in settings.py, so in order to have multiple sites, you need multiple settings.py configurations, which means multiple distinct processes/instances. You can of course share the code base between them, but each site will need a dedicated worker / WSGIDaemon to serve the site. This effectively removes any benefit of running multiple sites under one hood, if each site needs a UWSGI instance running. Alternative ideas of systems: https://github.com/iivvoo/django_layers https://github.com/shestera/django-multisite I don't know what route to be taking with this.

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• What is the ideal length of a method?

  - by iPhoneDeveloper

  In object-oriented programming, there is no exact rule on the maximum length of a method , but I still found these two qutes somewhat contradicting each other, so I would like to hear what you think. In Clean Code: A Handbook of Agile Software Craftsmanship, Robert Martin says: The first rule of functions is that they should be small. The second rule of functions is that they should be smaller than that. Functions should not be 100 lines long. Functions should hardly ever be 20 lines long. and he gives an example from Java code he sees from Kent Beck: Every function in his program was just two, or three, or four lines long. Each was transparently obvious. Each told a story. And each led you to the next in a compelling order. That’s how short your functions should be! This sounds great, but on the other hand, in Code Complete, Steve McConnell says something very different: The routine should be allowed to grow organically up to 100-200 lines, decades of evidence say that routines of such length no more error prone then shorter routines. And he gives a reference to a study that says routines 65 lines or long are cheaper to develop. So while there are diverging opinions about the matter, is there a functional best-practice towards determining the ideal length of a method for you?

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• Entity Component System for HUD and GUI

  - by Jason L.

  This is a very rough sketch of how I currently have things designed. It should, at least, give an idea of how my ECS is currently designed. If you notice in that diagram, I have basically split the HUD out of the ECS. They have their own set of things (HudLayer, HudComponent, etc) and are handled differently. This is where I'm struggling, though. There are many different instances in which the HUD will need to know about entities. Not just data changing (I have an event dispatcher for that), but the actual entity and all it encompasses. There are also situations where entities will need to be able to query the HUD for data. Let's take a couple examples: First, my equipment screen. On here I can change the equipment on a character (Entity). In order for this to happen, I need to know about the entity. At least I think I do? How can I handle this? The second scenario involves my Systems needing to query a HudComponent for data. A specific example would be my battle system. Each "team" is given a 3x3 grid they can move around in. See here: Skills target these cells, and not the player, so I would need a way for my systems to determine which cells are occupied and which are not. Basically I need a way for two way communication between Systems and my HUD. I know it's recommended (by some people, anyways) to take your HUD out of the ECS. Is that appropriate in my case?

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• Das keyboard boot camp

  - by chuck taylor

  So I recently started using a Das keyboard ultimate with my mac and after installing the key re-mapping, it basically works ok. I have a couple of issues with the set up involving boot camp. When I start up the computer, which key maps to option in order to let me pick which operating system to boot into? I think the bios is detecting the keys along the bottom as alt or something like that and I am not sure what to do here. In windows 7, the " and @ keys are switched. How do I get windows to remap this back to the US english settings? Thanks for any help you can provide.

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• lxc containers fail to autoboot in 14.04 trusty using 'lxc.start.auto = 1'

  - by user273046

  In trusty 14.04 containers fail to autoboot despite all settings being set as 14.04 requires. They show all as STOPPED I have correctly configured 2 LXC containers: calypso encelado They run perfectly if I run sudo lxc-autostart then sudo lxc-ls --fancy results in: ubuntu@saturn:/etc/init$ sudo lxc-ls --fancy NAME STATE IPV4 IPV6 AUTOSTART calypso RUNNING 192.168.1.161 - YES encelado RUNNING 192.168.1.162 - YES The problem is trying to run them at boot. I have at: /var/lib/lxc/calypso/config: # Template used to create this container: /usr/share/lxc/templates/lxc-download # Parameters passed to the template: # For additional config options, please look at lxc.conf(5) # Distribution configuration lxc.include = /usr/share/lxc/config/ubuntu.common.conf lxc.arch = x86_64 # Container specific configuration lxc.rootfs = /var/lib/lxc/calypso/rootfs lxc.utsname = calypso # Network configuration lxc.network.type = veth lxc.network.flags = up #lxc.network.link = lxcbr0 lxc.network.link = br0 lxc.network.hwaddr = 00:16:3e:64:0b:6e # Assegnazione IP Address lxc.network.ipv4 = 192.168.1.161/24 lxc.network.ipv4.gateway = 192.168.1.1 # Autostart lxc.start.auto = 1 lxc.start.delay = 5 lxc.start.order = 100 and I have LXC_AUTO="false" as required inside /etc/default/lxc: LXC_AUTO="false" USE_LXC_BRIDGE="false" # overridden in lxc-net [ -f /etc/default/lxc-net ] && . /etc/default/lxc-net LXC_SHUTDOWN_TIMEOUT=120 Any idea on why the containers don't start at boot? At reboot they are always in the STOPPED state: ubuntu@saturn:~$ sudo lxc-ls --fancy NAME STATE IPV4 IPV6 AUTOSTART calypso STOPPED - - YES encelado STOPPED - - YES and then again they can be started manually, using sudo lxc-autostart

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• Reasonable Location to Install Web Service on Server

  - by Mr. Disappointment

  Firstly, I'm a software developer and not qualified as any kind of system or server expert so I'm looking for advice in order to help me prevent faults on our server. I've written a modular system to carry out certain tasks for us autonomously to prevent us from writing the same old code over and over again. This consists of a Windows Service (.NET), a Web Service (WCF), a shared Class Library, and a Database which will run on a Windows Server 2003. The problem comes, for me, in deployment. Specifically the web service - naturally the local service (and required shared library) are persisted (by default and convention) in the Program Files folder, but storing the web service here just seems absurd to me (even though we'd lock it down to appropriate use only). Should the files be stored some place else all together? Or split them up and store the web service elsewhere?

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• mod_rewrite not working?

  - by Sean Kimball

  I have a bunch of non-existent urls that need to be redirected to new ones, though they are not working... mod_rewrite does work and is enabled, I'm wondering if the redirect URL has to actually exist in order for a redirect ot work. Here is what I have: Redirect 301 /cgi-bin/commerce.cgi?display=action&emptyoverride=yes&template=Assets/XHTML/Advantage.html http://domain.com/the-bag-to-nature-advantage.html UPDATE this is the request that comes in [indexed in google!] http://domain.com//cgi-bin/commerce.cgi?display=action&emptyoverride=yes&template=Assets/XHTML/Advantage.html this is where it needs to go: http://domain.com/the-bag-to-nature-advantage.html

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• SharePoint Designer prompts for credentials when edited from IE8

  - by Rob Nicholson

  Our intranet is hosted using the free SharePoint services on Windows 2003. Consider the following page: http://vserver003/help/technology/multimedia/multimedia.htm On selecting "Edit with Microsoft Office SharePoint Designer" from IE8, SPD launches, opens the website and then the selected page - all is well. In order to make moving the intranet easier, we've set-up a DNS setting called intranet.company.local so you can also access the intranet that way: http://intranet.company.local/help/technology/multimedia/multimedia.htm However, when you edit this page, SPD designer prompts you for credential, i.e. domain\username and password. If you enter the details it opens fine. If you don't enter the details, the page still opens but not the website. Any ideas have to get around this prompt? Haven't a clue where to start looking. Thanks, Rob. PS. The same prompt occurs if you use the physical IP address.

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• What resources are there for creating a dedicated NES emulator box?

  - by normalocity

  Where do I start, and what communities should I get involved in, in order to achieve the following? Ideally, I'd like to have a box that does the following (doesn't have to do this out of the box, I'm just looking to be able to achieve these goals through configs and necessary dependencies): Either bypasses login, or auto login Auto-start FCEUX with options that will (a) automatically start a ROM of my choosing, and (b) go into full-screen mode. You can assume that before I get that far, I've already configured the input devices and video options. I'd like to create (or install, if it exists) a full-screen app that takes a list of ROMs, allows me to select one with a gamepad/arcade stick, and press a button to open that game Be able to map a button on a gamepad/arcade stick to the "Power off" or exit function of the emulator, such that it will take me back to the ROM selection screen. I've already successfully installed FCEUX and tested it with an arcade stick I own, so I'm not looking for an emulator installer guide. I don't know if the ROM selector app exists already, but I'm a Java developer, and could probably create one (so long as it's not too difficult to support controllers - I was thinking of using Slick2D for this - a gaming library that I'm already pretty familiar with). The goal would be a dedicated box that I have connected to my TV. I power it on. It boots up and starts the ROM selection app, which passes the proper parameters to FCEUX (or another emulator that I might switch to at a later time), and I'm ready to go. Basically an NES emulator as a real, living room console. Also, as far as mapping a controller button to functions in the app, well, I've also played around with hardware, and it would be pretty trivial for me to modify a gamepad to trigger key presses. I just don't want to go to that length if it's not necessary.

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• Custom inventory items based on inheritance

  - by Bogdan Marginean

  So, here's the scenario: I'm building an RPG. Like most of the other RPGs on the market, my game will feature an inventory and of course, inventory items. So far I've worked well with using a single class for all items, because I did not need anything else than character stat alteration on item usage (consumption). However, I'd like some items to have a more exotic effect. Think of something like when the user consumes a transformation potion, he automatically turns into a beast. In order to achieve this I've thought about declaring a new class that inherits from BaseItem for each item. Each descendant would override some methods (like void OnConsume()), to change the base behavior. This works fine, but when it comes to inventory management, I have some issues. The actual inventory will have to work with BaseItem components only (for obvious reasons, as it's an enumerable collection of objects of the same type); casting any descendant to the base class is possible, so no problems in adding items to the inventory. But how can I keep track of the descendant's type (class) for each item in the inventory? And how to perform the descendant's OnConsume from withint he inventory, for each item? Let me know if you can think of a better solution than mine, or if you can think of a solution to my problem only. Development is done in C#, inside Unity 3.5. Thanks!

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• Trouble with touch events on iPhone

  - by MrDatabase

  I'm making a simple 2D game for iPhone. Think of the game as a ball on the screen that goes up while the user is touching the screen and falls down when the user stops touching the screen. The ball starts moving up in touchesBegan:withEvent and starts moving down in touchesEnded:withEvent. This works fine almost all the time. However on occasion the ball will keep moving up after the user stops touching... or the ball will keep moving down while the user is touching. Why is this happening? Just fyi the ball is drawn on a UIWindow. The taps are handled by a UIImageview subclass that's clearColor and takes up the entire screen. This "touchLayer" is also moved to the front of the window in the game loop. Any idea why this control scheme occasionally fails? Perhaps the touch events just aren't firing? Or they're fired out of order? Cheers!

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• Ways to break the "Syndrome of the perfect programmer"

  - by Rushino

  I am probably not the only one that feel that way. But I have what I tend to call "The syndrome of the perfect programmer" which many might say is the same as being perfectionist but in this case it's in the domain of programming. However, the domain of programming is a bit problematic for such a syndrome. Have you ever felt that when you are programming you're not confident or never confident enought that your code is clean and good code that follows most of the best practices ? There so many rules to follow that I feel like being overwhelmed somehow. Not that I don't like to follow the rules of course I am a programmer and I love programming, I see this as an art and I must follow the rules. But I love it too, I mean I want and I love to follow the rules in order to have a good feeling of what im doing is going the right way.. but I only wish I could have everything a bit more in "control" regarding best practices and good code. Maybe it's a lack of organization? Maybe it's a lack of experience? Maybe a lack of practice? Maybe it's a lack of something else someone could point out? Is there any way to get rid of that syndrome somehow ?

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• I am trying to set up a ubuntu sever 12.04 on my machine

  - by Jseb

  I am trying to set up a server on my home network which will eventually host rails. I am not great in linux server and i try to follow the prompt. I did succesfully get to a black screen which then prompts me to a username then password to then do anything ( assuming). However here what i try to do I kinda fellow his tutorial http://www.ubuntugeek.com/step-by-step-ubuntu-11-04-natty-lamp-server-setup.html but however the command where not 100% like him not in same order but same idea. Then i want to install ubuntu server with gui here the command i try with sudo apt-get upgrade sudo apt-get install ubuntu-desktop Which however give me the following error Err http... inRelease w Failed to fetch ht... So been ignored if i try the desktop one i get E: unable to locate package ubuntu E: unable to locate package desktop So i am assuming i am not connected to the internet, so i try the following command sudo vi /etc/network/interfaces here the output it gives me and i know my gateway on my laptop is 192.168.1.1 address: 192.168.1.148 netmask: 255.255.255.0 network: 192.168.1.0 broadcasts: 192.168.1.255 gateway: 192.168.1.1 Btw i do not know the command to get out of vi and saving it. Err http://us.archive.ubuntu.com precises InRelease Err http://us.archive.ubuntu.com precises-updates InRelease Err http://us.archive.ubuntu.com precises-backports InRelease Reading package lists... Done W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/precise/InRelease W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/precise-updates/InRelease W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/precise-backport/InRelease

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• DNS name not on cert

  - by blsub6

  I've got an interesting one... My users have always typed in 'mail' to get to their mail. There was an internal DNS A record that resolved that to the IP of the mail server. I'm putting in an Exchange server to replace that. In order for people to get their mail, I try putting in an A record that does the same thing as the previous one. When I try to get to OWA, it tells me that the certificate on the server is not trusted. I only have the names: mail.mydomain.com autodiscover.mydomain.com autodiscover.mydomain.internal mydomain.internal mailserver.mydomain.internal so when the browser sees that this cert is trying to cover https://mail/owa it says the cert's not trusted. What amy I supposed to do about that?

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• Diablo 3 "freezes" periodically

  - by Shauna

  I'm running Diablo 3 (start edition, digital download) on the following: Ubuntu 12.04 64-bit (stock Unity, Gnome, etc; kernel version 3.2.0-29-generic) Wine version 1.5.11 (base, from Wine's PPA, game started with setarch i386 -3) Intel i7 920 CPU nVidia GTX260 with driver version 295.49 ("post-release updates" entry within the proprietary drivers tool), dual monitors 6GB RAM Every so often (and what appears to be at random), the game video will freeze up. I can still move the mouse, and it reacts to ctrl+alt+f2 to drop into text mode, but I can't get back to the desktop (which means I can check terminal to see what's going on after launching from terminal, especially since even in windowed mode, the secondary screen gets shut off by the game), and I can't continue to play the game. In order to get it running again, I have to restart lightdm, then relaunch the game (or, in a couple of rare cases, I had to restart the computer entirely, because running sudo service lightdmn [stop/start] doesn't appear to react). Turning down the video settings seems to have helped in some cases, but not all of them. Times it's frozen on me: The beginning of The Fallen Start quest part 6 - kill the Wretched Mother, right as you walk out of New Tristram and engage in the monsters on the northern path (repeatedly froze here until I adjusted the graphics down) Within the cinematic/event upon finding Deckard Cain While fighting the skeletons to protect Deckard Cain When about to enter Leoric's passage after Cain sends you back to where you found him That's as far as I've gotten through the game so far. Additionally, this doesn't happen on other games I play and seems to only occur with Diablo 3. Has anyone else run into this issue and know a possible cause or fix, or at least know where I can look (and what to look for) to figure out why this is happening?

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• Reduce visual redundancies in Outlook 2013?

  - by GaTechThomas

  Outlook 2013 has taken a direction of "how much space can I fill with noise and redundancies". Is it possible to reduce this noise in order to maximize use of screen real estate? For example, in the preview pane, can I shrink the header so that it doesn't include so much info. I don't need any info for the sender and I don't need the subject, as they are both included in the email list pane. Additionally, the ability to turn off the detail bar at the bottom of the preview windows would be helpful. Having Reply/ReplyAll/Forward are also redundant and can go. Is it possible to turn this noise off?

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• Performance of concurrent software on multicore processors

  - by Giorgio

  Recently I have often read that, since the trend is to build processors with multiple cores, it will be increasingly important to have programming languages that support concurrent programming in order to better exploit the parallelism offered by these processors. In this respect, certain programming paradigms or models are considered well-suited for writing robust concurrent software: Functional programming languages, e.g. Haskell, Scala, etc. The actor model: Erlang, but also available for Scala / Java (Akka), C++ (Theron, Casablanca, ...), and other programming languages. My questions: What is the state of the art regarding the development of concurrent applications (e.g. using multi-threading) using the above languages / models? Is this area still being explored or are there well-established practices already? Will it be more complex to program applications with a higher level of concurrency, or is it just a matter of learning new paradigms and practices? How does the performance of highly concurrent software compare to the performance of more traditional software when executed on multiple core processors? For example, has anyone implemented a desktop application using C++ / Theron, or Java / Akka? Was there a boost in performance on a multiple core processor due to higher parallelism?

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• SPF include: too many IP addresses

  - by sprezzatura

  I've hit a snag with SPF. The SPF record for my domain will contain four or five entries, plus it will contain: include:sgizmo.com The SPF record for sgizmo.com contains eleven entries! This, plus mine, is way over the maximum ten allowed by the RFC (and probably by most servers). I realize that there has to be a limit in order to prevent DoS attacks. However, in the real world, it is probably not unreasonable for large companies to have many server addresses. Furthermore, must I know monitor my 'include:' counterparts for changes and additions? Must I check weekly, daily, to insure that some combination of changes doesn't suddenly put me over the top? It doesn't seem to me that SPF is suitable for prime time. Is there another way to do this?

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• Disable creation of appointment when typing into Outlook calendar

  - by Alexander L. Belikoff

  Outlook (both 2010 and 2007) has a "feature" that creates an appointment if I type some text while the calendar window has focus. This keeps biting me every now and then when I erroneously have focus on the calendar window and start typing. To me, this feature is twice as annoying: There is no easy way to escape out of it - I end up using mouse to select the newly created bogus event and then to delete it. Sometimes, if the focus is on an already existing event, such spurious typing changes the text without an easy way to undo. Question: is there a way to make Outlook stop creating/modifying events upon typing, forcing me instead to double click an event or Ctrl-N in order to process my input?

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• How do I ensure my Apple keyboard connects on boot?

  - by Stacey Richards

  I am using Ubuntu 10.04 on a laptop and have an Apple wireless keyboard which pairs fine. Every time I turn my computer off and back on again my keyboard stops working. I have to use the keyboard on my laptop to log in. Once I've logged in, in order to get the wireless keyboard to work, I need disconnect and reconnect it by: Clicking on the Bluetooth icon, select Apple Wireless Keyboard from the drop down menu, then click on Disconnect. Clicking on the Bluetooth icon, select Apple Wireless Keyboard from the drop down menu, then click on Connect. Looking through syslog, to see what's happening during boot, I find: Nov 25 10:29:21 sony kernel: [ 24.525372] apple 0005:05AC:0239.0002: parse failed Nov 25 10:29:21 sony kernel: [ 24.525379] apple: probe of 0005:05AC:0239.0002 failed with error -14 and then later in syslog, once I've disconnected then connected the keyboard, I find: Nov 25 10:30:14 sony bluetoothd[1247]: link_key_request (sba=00:21:4F:49:8A:DB, dba=E8:06:88:5A:E0:D4) Nov 25 10:30:14 sony kernel: [ 79.427277] input: Apple Wireless Keyboard as /devices/pci0000:00/0000:00:1d.2/usb8/8-1/8-1:1.0/bluetooth/hci0/hci0:12/input11 Nov 25 10:30:14 sony kernel: [ 79.427611] apple 0005:05AC:0239.0003: input,hidraw1: BLUETOOTH HID v0.50 Keyboard [Apple Wireless Keyboard] on 00:21:4F:49:8A:DB I can't find anything helpful when Googling "apple: probe of failed with error -14".

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• Deleting a row from self-referencing table

  - by Jake Rutherford

  Came across this the other day and thought “this would be a great interview question!” I’d created a table with a self-referencing foreign key. The application was calling a stored procedure I’d created to delete a row which caused but of course…a foreign key exception. You may say “why not just use a the cascade delete option?” Good question, easy answer. With a typical foreign key relationship between different tables which would work. However, even SQL Server cannot do a cascade delete of a row on a table with self-referencing foreign key. So, what do you do?…… In my case I re-wrote the stored procedure to take advantage of recursion:   -- recursively deletes a Foo ALTER PROCEDURE [dbo].[usp_DeleteFoo]      @ID int     ,@Debug bit = 0    AS     SET NOCOUNT ON;     BEGIN TRANSACTION     BEGIN TRY         DECLARE @ChildFoos TABLE         (             ID int         )                 DECLARE @ChildFooID int                        INSERT INTO @ChildFoos         SELECT ID FROM Foo WHERE ParentFooID = @ID                 WHILE EXISTS (SELECT ID FROM @ChildFoos)         BEGIN             SELECT TOP 1                 @ChildFooID = ID             FROM                 @ChildFoos                             DELETE FROM @ChildFoos WHERE ID = @ChildFooID                         EXEC usp_DeleteFoo @ChildFooID         END                                    DELETE FROM dbo.[Foo]         WHERE [ID] = @ID                 IF @Debug = 1 PRINT 'DEBUG:usp_DeleteFoo, deleted - ID: ' + CONVERT(VARCHAR, @ID)         COMMIT TRANSACTION     END TRY     BEGIN CATCH         ROLLBACK TRANSACTION         DECLARE @ErrorMessage VARCHAR(4000), @ErrorSeverity INT, @ErrorState INT         SELECT @ErrorMessage = ERROR_MESSAGE(), @ErrorSeverity = ERROR_SEVERITY(), @ErrorState = ERROR_STATE()         IF @ErrorState <= 0 SET @ErrorState = 1         INSERT INTO ErrorLog(ErrorNumber,ErrorSeverity,ErrorState,ErrorProcedure,ErrorLine,ErrorMessage)         VALUES(ERROR_NUMBER(), @ErrorSeverity, @ErrorState, ERROR_PROCEDURE(), ERROR_LINE(), @ErrorMessage)         RAISERROR (@ErrorMessage, @ErrorSeverity, @ErrorState)     END CATCH   This procedure will first determine any rows which have the row we wish to delete as it’s parent. It then simply iterates each child row calling the procedure recursively in order to delete all ancestors before eventually deleting the row we wish to delete.

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