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• Tired of Downloading Your Entire Schema? How About a Partial Download?

  - by user702295

  Proceed to document 1448266.1, Demantra Non Invasive Partial Schema Export Utility Extracting Partial Schema Dumps for Analysis.  In this document you will find instructions and 2 SQL scripts.  Give it a try.  If you have a problem, feel free to post to this BLOG or the community located at: https://communities.oracle.com/portal/server.pt/community/demantra_solutions/231 Regards!   Jeff

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• Display resolutions missing after upgrade to Ubuntu 12-10

  - by Jim Grover

  I recently upgraded my dual-boot HP laptop (dv7-3060us, 17.3" display) from ubuntu 12-4 to 12-10. After the upgrade, only three (3) resolutions are available (800x600, 1024x768, and 1152x864, all 4:3 resolutions), none of which are 16:9. Everything worked properly in 12-04. The display adapter is ATI Mobility Radeon HD 4530. Does anyone have any ideas/suggestions about how to correct this problem? Thanks.

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• MPEG-2 playback inconsistent

  - by DustByte

  Many years ago I gave up on Linux because video playback was choppy. Now I'm back, and video playback is still playing up... I have two MPEG files: good.mpg bad.mpg. Here is some information about the two files, using avprobe: My machine is Intel Core 2 Duo E8400 @ 3.00GHz x 2, 64-bit. I do not know what graphics card I have. I run Ubuntu 12.04. So far I have had no problems with YouTube and playback of various video files, including playback of the file good.mpg, included in the avprobe snapshot above. However, the file bad.mpg gives me headache! The file bad.mpg is produced by a respectable "Old-video-tapes-to-DVD" company. I converted over 10 Video-8 tapes to MPEG through them, and today I collected my hard drive containing the MPEG files. Unfortunately I have problem watching them! Here are some details: Using Totem Movie Player 3.0.1 works well for several seconds, then it gets choppy and the playback is not at all smooth. Also the player easily freezes for a while when trying to jump to another position in the file. Most strangely though, the total time is shown as 0:42 (42 seconds) instead of the true 00:39:11: The VLC media player is doing a better job. It shows the correct total length, but as soon as I jump in the video to a new position, it stalls. Playback also stalls after 30 seconds if I press play and leave it. Using Handbrake and choosing bad.mpg as the source, gives me: There is only one title to choose, and it is 6 min 53 seconds. I would have guessed the full 39 minutes of the video should have shown. Lastly, putting the file bad.mpg in Dropbox and viewing it on my iPad with the Dropbox app seems fine (disregard the lack of easy jumping forward due to real-time encoding when streaming it). My question is simple: What is going on?! Why do I have problem to play the MPEG-2 files I just paid good money for (the issue with bad.mpg applies to all files I had encoded)? Is it an issue with my particular Linux machine? The graphics card? But why has everything worked fine so far, and why does not the good.mpg file cause any problems?

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• OpenGL and gluUnProject, 3d object following mouse

  - by Robert

  i have a 3d object and i want him to "follow" my mouse position, so i use gluUnProject function to convert screen coordinates to 3d world coordinates and i translate this object with the new coordinates. Its working but i have a problem, my object can follow my mouse but he is moving extremely fast, when i move my mouse a little bit(something like 2 pixels), its moving extremly fast in the 3d world. I want something like that : http://www.youtube.com/watch?v=90zS8SVUAIY (red circle following mouse). Thanks for your help.

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• Purple/Pink lines on screen after login on Ubuntu Desktop 13.04

  - by Thomas May

  I downloaded Ubuntu 13.04 and I loaded up the live system. It loaded up fine but when I clicked on the Ubuntu logo purple and pink lines appeared on screen and they didn't go away so I thought that if I installed the OS it would be fine so I installed the OS, logged in and lo and behold the purple and pink lines where back. My video card is nVidia N force (I think) Anyone having the same problem???

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• Empty tooltips in MATLAB

  - by GriffinPeterson

  I am running MATLAB R2013b. Under Unity, the built-in editor of MATLAB shows empty tooltips, as seen here: http://imgur.com/4VSq6i8 Under xfce the tooltips are showing up just fine. My system: Ubuntu 14.04, Intel i7 4770K. The question has already been posted somewhere else (http://stackoverflow.com/questions/21915939/matlab-code-analyzer-produces-empty-tooltips, http://www.mathworks.com/matlabcentral/answers/116987-empty-tooltips-in-code-analyzer ), but I think this is a Unity-specific problem. Any ideas?

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• Simple method for reliably detecting code in text?

  - by Jeff Atwood

  GMail has this feature where it will warn you if you try to send an email that it thinks might have an attachment. Because GMail detected the string see the attached in the email, but no actual attachment, it warns me with an OK / Cancel dialog when I click the Send button. We have a related problem on Stack Overflow. That is, when a user enters a post like this one: my problem is I need to change the database but I don't won't to create a new connection. example: DataSet dsMasterInfo = new DataSet(); Database db = DatabaseFactory.CreateDatabase("ConnectionString"); DbCommand dbCommand = db.GetStoredProcCommand("uspGetMasterName"); This user did not format their code as code! That is, they didn't indent by 4 spaces per Markdown, or use the code button (or the keyboard shortcut ctrl+k) which does that for them. Thus, our system is accreting a lot of edits where people have to go in and manually format code for people that are somehow unable to figure this out. This leads to a lot of bellyaching. We've improved the editor help several times, but short of driving over to the user's house and pressing the correct buttons on their keyboard for them, we're at a loss to see what to do next. That's why we are considering a Google GMail style warning: Did you mean to post code? You wrote stuff that we think looks like code, but you didn't format it as code by indenting 4 spaces, using the toolbar code button or the ctrl+k code formatting command. However, presenting this warning requires us to detect the presence of what we think is unformatted code in a question. What is a simple, semi-reliable way of doing this? Per Markdown, code is always indented by 4 spaces or within backticks, so anything correctly formatted can be discarded from the check immediately. This is only a warning and it will only apply to low-reputation users asking their first questions (or providing their first answers), so some false positives are OK, so long as they are about 5% or less. Questions on Stack Overflow can be in any language, though we can realistically limit our check to, say, the "big ten" languages. Per the tags page that would be C#, Java, PHP, JavaScript, Objective-C, C, C++, Python, Ruby. Use the Stack Overflow creative commons data dump to audit your potential solution (or just pick a few questions in the top 10 tags on Stack Overflow) and see how it does. Pseudocode is fine, but we use c# if you want to be extra friendly. The simpler the better (so long as it works). KISS! If your solution requires us to attempt to compile posts in 10 different compilers, or an army of people to manually train a bayesian inference engine, that's ... not exactly what we had in mind.

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• How do you manage extensibility in your multi-tenant systems?

  - by Brian MacKay

  I've got a few big web based multi-tenant products now, and very soon I can see that there will be a lot of customizations that are tenant specific. An extra field here or there, maybe an extra page or some extra logic in the middle of a workflow - that sort of thing. Some of these customizations can be rolled into the core product, and that's great. Some of them are highly specific and would get in everyone else's way. I have a few ideas in mind for managing this, but none of them seem to scale well. The obvious solution is to introduce a ton of client-level settings, allowing various 'features' to be enabled on per-client basis. The downside with that, of course, is massive complexity and clutter. You could introduce a truly huge number of settings, and over time various types of logic (presentation, business) could get way out of hand. Then there's the problem of client-specific fields, which begs for something cleaner than just adding a bunch of nullable fields to the existing tables. So what are people doing to manage this? Force.com seems to be the master of extensibility; obviously they've created a platform from the ground up that is super extensible. You can add on to almost anything with their web-based UI. FogBugz did something similiar where they created a robust plugin model that, come to think of it, might have actually been inspired by Force. I know they spent a lot of time and money on it and if I'm not mistaken the intention was to actually use it internally for future product development. Sounds like the kind of thing I could be tempted to build but probably shouldn't. :) Is a massive investment in pluggable architecture the only way to go? How are you managing these problems, and what kind of results are you seeing? EDIT: It does look as though FogBugz handled the problem by building a fairly robust platform and then using that to put together their screens. To extend it you create a DLL containing classes that implement interfaces like ISearchScreenGridColumn, and that becomes a module. I'm sure it was tremendously expensive to build considering that they have a large of devs and they worked on it for months, plus their surface area is perhaps 5% of the size of my application. Right now I am seriously wondering if Force.com is the right way to handle this. And I am a hard core ASP.Net guy, so this is a strange position to find myself in.

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• Why does Microsoft Excel change the characters that I copy into it?

  - by Elysium

  I live in Spain and I am using the English version of Microsoft Excel installed with wine on Ubuntu. The problem is that I use my laptop at work and when I copy text into excel (text that is Spanish) the characters that are Spanish (such as é,ñ, á...etc) are changed into weird characters. How can I sort this out? For example: Martínez José....appears as "Martínez José" in my spreadsheet and I really cant have it this way or my boss will kill me. :)

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• My site works with www.example.com but not example.com

  - by toocool

  this is the site that I am going to develop: http://www.juve-news.com/ it works like this but it doesnt when I try to open it without the www prefix. it give me 400 bad request! I have used other web host before now I am trying a new one and I have to add some dns entries like in the picture here: http://cloudcontrol.com/developers/documentation/add-ons/aliases/ I dont know what I have done wrong. If anyone knows what could be the problem then please give me a tip.

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• Anything like SiSoftware Sandra?

  - by david25

  SiSoftware Sandra is a hardware diagnostic tool for windows: http://www.sisoftware.net/ the time update my little note book has come, and i encountered the problem of not knowing what is the model of my processor(the notebook come in two flavours, its asus eee pc 1005ha btw and yes, i did try to google it). and its very critical for me since im upgrading the ram. edit: sorry for the misunderstanding, i need to find out my processor model right now but i want to find similar software for future use that is more than just finding what is my processor.

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• How can i force fish to save new key bindings persistently after closing a terminal window?

  - by NES

  How can i force fish to save new key bindings persistently after closing a terminal window? At the moment i have the problem: -I open a terminal window, the default shell is fish. -i add a key binding with: bind \eg functionname -it works in the terminal window -now i close terminal window -open a new terminal window, again fish is defalut shell -the binding doesn't work any longer and doesn't show up in output of fish -a

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• GUI device for throwing a ball

  - by Fredrik Johansson

  The hero has a ball, which shall be thrown with accuracy in a court on iPhone/iPad. The player is seen from above, in a 2D view. In game play, the player reach is between 1/15 and 1/6 of the height of the iPhone screen. The player will run, and try to outmaneuver his opponent, and then throw the ball at a specific location, which is guarded by the opponent (which is also shown on the screen). The player is controlled by a joystick, and that works ok, but how shall I control the stick? Maybe someone can propose a third control method? I've tried the following two approaches: Joystick: Hero has a reach of 1 meter, and this reach is marked with a semi-opaque circle around the player. The ball can be moved by a joystick. When the joystick is moved south, the ball is moved south within the reach circle. There is a direct coupling with the joystick and the position of the ball. I.e. when the joystick is moved max south, the ball is max south within the player reach. At each touch update the speed is calculated, and the Box2d ball position and ball speed are updated. NB, the ball will never be moved outside the reach as long as the player push the joystick. The ball is thrown by swiping the joystick to make the ball move, and then releasing the joystick. At release, the ball will get a smoothed speed of the joystick. Joystick Problem: The throwing accuracy gets bad, because the joystick can not be that big, and a small movement results in quite a large movement of the ball. If the user does not release before the end of the joystick maximum end point, the ball will stop, and when the user releases the joystick the speed of the ball will be zero. Bad... Touch pad A force is applied to the ball by a sweep on a touchpad. The ball is released when the sweep is ended, or when the ball is moved outside the player reach. As there is no one to one mapping between the swipe and the ball position, the precision can be improved. A large swipe can result in a small ball movement. Touch Pad Problem A touchpad is less intuitive. Users do not seem to know what to do with the touch pad. Some tap the touchpad, and then the ball just falls to the ground. As there is no one-to-one mapping, the ball can be moved outside the reach, and then it will just fall to the ground. It's a bit hard to control the ball, especially if the player also moves.

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• Can I change a linux swap partition to a file system without losing data?

  - by Diogo

  so I am using ubuntu 11.10, just changed from windows to ubuntu, and one of my file systems, I accidentally set it up as a linux swap partition and now I want to acces my files, as I did in windows, but I do not know any secure way to change that partition to a file system without formating it and loosing the data. Because I do not want to loose the data I have there. Does deleting the partition and mounting it again solve the problem?

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• Ralink-based USB Wi-Fi adapter drops connection after some time

  - by Hector Aguilar

  I have an Intellinet Wireless 150N USB adapter (based on a Ralink rt3070 chip) in an Ubuntu 10.10 installation. The problem is, that it's dropping the connection after being connected to a wireless network for 10 - 20 minutes. I have to unplug it and plug it in again every time this happens. I read somewhere, that I need to blacklist some chipset modules, but I don't how? And which ralink modules I have to blacklist? Thanks for your answers! :D

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• which are the different ways i can update software catalog?

  - by Manish Kumar Chauhan

  while facing problem(s) with software center 5.2.6 on ubuntu 12.04, i reinstalled the software center and executed following command on gnome terminal $ sudo dpkg --configure -a Setting up software-center (5.2.6) ... Updating software catalog...**this may take a moment.** However there is no or little beyond this point. Is there any other way to update software catalog? because every other time i open up software center it keeps on crashing.

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• How do you manage frequent software releases to multiple clients?

  - by meeech

  hi we have a cross-platform middleware product which we typically end up customizing/bug fixing on a per client basis. In some cases, providing updates as often as once/twice per week. We have a lot of trouble efficiently managing and releasing the updates to our clients. I've done some digging, but I can't find anything to specifically address this problem. Can anyone share their experiences - how do you deal with this scenario, or do you know of a good software delivery cms? thanks

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• Basic tutorial/introduction for 3d matrices, idealy in c++, without openGl or directX

  - by René Nyffenegger

  I am wondering if there is a simple tutorial that covers the basics of how to initialize rotation, translation and projection matrices, and how to multiply them, and how to get the screen coordinates afterwards for a 3d point. Idealy, the tutorial comes with compilable code and is not dependent on any 3rd party library. Searching the internet, I found lots of tutorials, so this is not the problem. Yet, it seemed all of these either covered openGl or directX, or they were theoretical in nature.

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• What's the best Bittorrent client for 12.10 excluding utorrent?

  - by Brenton Horne

  The reason why I've excluded utorrent is because utorrent server doesn't appear to work for me with the details of such difficulties available in the question How do I install uTorrent?. Running through wine is an annoying solution to the problem as whenever I run it that way I have to manually relocate torrent-ed files as they are undiscoverable in the location utorrent saves it by default. I'd appreciate a decently-sized compare and contrast answer.

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• Nautilus bookmarks and smb shares work with non-root user

  - by Enrique

  I'm having a problem with Nautilus in Ubuntu 10.10 When I open Nautilus as common user, it shows bookmarks and the bookmarks that point to smb windows shares work fine. However, if I start Nautilus as root, it does not show bookmarks, and if I try to browse a smb share directly (by pressing Ctrl+L and inserting an address like smb://[email protected]/backups/) it doesn't work and gives me an error that it couldn't be found.

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• ubuntu 12.10 can't find java, but it's exists!

  - by William

  I installed ZendStudio 5.5.1 on Ubuntu 12.04 and it runs well , no problem. Today, I download Ubuntu 12.10 and intalled it on my / but keep the /home partition. And now, I can't run the ZendStudio any more, it gives me this error: strings: '/lib/libc.so.6': No such file ./ZDE: 1714: exec: /home/william/Zend/ZendStudio-5.5.1/jre/bin/java: not found But the java file exist! What's wrong? Thanks!

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• Executing a C program stored on a windows drive?

  - by bijay prakash singh

  I wrote a simple hello world program but not stored it in Ubuntu's home directory, instead I stored it on one of the Windows drives. (I am using Ubuntu 12.04 alongside of Windows.) When I compiled the program it worked just fine but when I tried to execute it I got an error message "Permission denied". And When I store the program in Ubuntu's home directory I can perfectly compile and execute the program. So please tell me how to overcome this problem??

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• Help, i cant reference my vars!

  - by SystemNetworks

  I have a sub-class(let's call it sub) and it contains all the function of an object in my game. In my main class(Let's call it main), i connect my sub to main. (Example sub Code: s = new sub(); Then I put my sub function at the update method. Code: s.myFunc(); Becuase in my sub, i have booleans, integers, float and more. The problem is that I don't want to connect my main class to use my main's int, booleans and others. If i connect it, it will have a stack overflow. This is what I put in my sub: Code: package javagame; import org.newdawn.slick.GameContainer; import org.newdawn.slick.Graphics; import org.newdawn.slick.Input; import org.newdawn.slick.state.StateBasedGame; public class Armory { package javagame; import org.newdawn.slick.GameContainer; import org.newdawn.slick.Graphics; import org.newdawn.slick.Input; import org.newdawn.slick.state.StateBasedGame; public class Store { public Integer wood; public Float probePositionX; public Float probePositionY; public Boolean StoreOn; public Boolean darkBought; public Integer money; public Integer darkEnergy; public Integer lifeLeft; public Integer powerLeft; public void darkStores(GameContainer gc, StateBasedGame sbg, GameContainer gc2) { Input input1 = gc.getInput(); //Player need wood to enter(200) If not there will be an error. if(wood>=200) { //Enter Store! if(input1.isKeyDown(Input.KEY_Q)) { //Player must be in this cord! if((probePositionX>393 && probePositionX<555) && (probePositionY< 271 && probePositionY>171)) { //The Store is On StoreOn=true; } } } } } In my main (update function) I put: Code: s.darkBought = darkBought; s.darkEnergy = darkEnergy; s.lifeLeft = lifeLeft; s.money = money; s.powerLeft = powerLeft; s.probePositionX = probePositionX; s.probePositionY = probePositionY; s.StoreOn = StoreOn; s.wood = wood; s.darkStores(gc, sbg, gc); The problem is when I go to the place, and I press q, nothing shows up. It should show another image. Is there anything wrong???

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• BBC flash videos don't play in Firefox (Youtube videos do, and all is fine in Chrome)

  - by Cocoro Cara

  Ubuntu 10.10, 32 bit. Firefox 3.6.14 Why don't BBC videos play in Firefox if Youtube has no problem? Moreover videos play fine in Chrome. Another strange thing: there seem to be two flashplugins in about:plugins File: libflashplayer.so Version: Shockwave Flash 10.1 r102 File: libflashplayer.so Version: Shockwave Flash 10.2 r152 But there is only one flashplugin in the plugins directory: /usr/lib/firefox/plugins/flashplugin-alternative.so - /etc/alternatives/firefox-flashplugin $ update-alternatives --list firefox-flashplugin /usr/lib/flashplugin-installer/libflashplayer.so Any ideas?

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• Cannot install packages. "Warning: untrusted versions..." plus "method driver /usr/lib/apt/methods/http could not be found"

  - by Steve Tjoa

  Judging from Internet forums, these errors appear to be popular when attempting to install packages: steve:~$ sudo aptitude install examplepackage The following NEW packages will be installed: examplepackage examplepackage-common{a} 0 packages upgraded, 2 newly installed, 0 to remove and 0 not upgraded. Need to get 1,834 kB of archives. After unpacking 7,631 kB will be used. Do you want to continue? [Y/n/?] WARNING: untrusted versions of the following packages will be installed! Untrusted packages could compromise your system's security. You should only proceed with the installation if you are certain that this is what you want to do. examplepackage examplepackage-common Do you want to ignore this warning and proceed anyway? To continue, enter "Yes"; to abort, enter "No": Yes E: The method driver /usr/lib/apt/methods/http could not be found. E: The method driver /usr/lib/apt/methods/http could not be found. E: Internal error: couldn't generate list of packages to download I followed this post by uninstalling ubuntu-keyring. But I cannot reinstall ubuntu-keyring or ubuntu-minimal -- the above errors reappear. In fact, I don't even seem to have apt (I must have caused this along the way by trying a bad solution, or maybe a clean): steve:~$ sudo apt-get update sudo: apt-get: command not found Aptitude works, but I can't install apt: steve:~$ sudo aptitude install apt The following NEW packages will be installed: apt 0 packages upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 1,046 kB of archives. After unpacking 3,441 kB will be used. E: The method driver /usr/lib/apt/methods/http could not be found. E: The method driver /usr/lib/apt/methods/http could not be found. E: Internal error: couldn't generate list of packages to download ...or update steve:~$ sudo aptitude update E: The method driver /usr/lib/apt/methods/http could not be found. E: The method driver /usr/lib/apt/methods/http could not be found. E: The method driver /usr/lib/apt/methods/http could not be found. I tried this post. Didn't help. To summarize, the main problem is that I cannot install anything. While attempting to fix the problem, the other aforementioned errors occurred. Can you help me fix this error? Feel free to ask if you need more information. Stats: steve:~$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 11.10 Release: 11.10 Codename: oneiric

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