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• TSQL Challenge 82 - Find elements that uniquely make up a group

  The challenge is to find the Tax Code based on Price. Each sales amount is uniquely made up by the sum of one or more prices. Based on this you should assign the tax code to each price. Keep your database and application development in syncSQL Connect is a Visual Studio add-in that brings your databases into your solution. It then makes it easy to keep your database in sync, and commit to your existing source control system. Find out more.

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• How would you tackle a pattern-finding program?

  - by Neil

  Just to be clear, I don't think this should be question better suited for stackoverflow.com simply because there's not a single answer but a wide range of possible solutions, making this question far more subjective in nature. I was curious how you guys would tackle a pattern-finding program, which is to say I'd do the following operations: I enter in some input. Program predicts my next input based on all previous inputs. Rinse. Repeat. Since the amount of input I could provide is so varied, including empty strings, conventional means such as switches or regular expressions are out, since it would require you to have an inkling of information about what to expect. I was thinking about some form of genetic algorithm, yet even then I don't have a clue as to how to approach a problem of this caliber. I think some feedback mechanism would be necessary as well as to let the program know how close it was. Anyone had to do a similar type program before?

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• How to restore "working folders" upon restart?

  - by Smiles in a Jar

  I am not sure I am working the problem correctly but I will try my best. I am newbie to ubuntu and I am using Ubuntu 11.10. On a daily basis but I have a set of 5-10 folders which I need to refer for my work. I am looking for a way if I can create a "workspace" of these folders so that upon restart in a single click all the folders in the workspace can be opened in different tabs. Another option that I right now plan to use us create links of the folders and then select all of them and open in different tabs. Was wondering if there is a cleaner option already provided in ubuntu.

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• 12.04 LTS update manager

  - by user108753

  I get the following msg: The package system is broken Check if you are using third party repositories. If so disable them, since they are a common source of problems. Furthermore run the following command in a Terminal: apt-get install -f. The following packages have unmet dependencies: gnome-icon-theme-full: Depends: gnome-icon-theme (= 3.4.0-0ubuntu1) but 3.4.0-0ubuntu1.1 is installed libreoffice-core: Depends: libgcc1 (>= 1:4.1.1) but 1:4.6.3-1ubuntu5 is installed linux-headers-generic: Depends: linux-headers-3.2.0-27-generic but it is not installed linux-headers-generic-pae: Depends: linux-headers-3.2.0-27-generic-pae but it is not installed

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• Eloquera Database 2.7.0 is released (native .NET object database)

  Eloquera ( www.eloquera.com ) originally designed and developed for use in the Web environment and its designed as native .NET application in C#. Eloquera wasnt ported from Java as many other databases. Eloquera natively as part of architecture supports: Save the data with a single line of code// Create the object we would like to work with. Movie movie = new Movie() { Location = "Sydney", Year = 2010, OpenDates = new DateTime[] { new DateTime(2003, 12, 10),...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Two HTML elements with same id attribute: How bad is it really?

  - by danludwig

  Just browsing the google maps source code. In their header, they have 2 divs with id="search" one contains the other, and also has jstrack="1" attribute. There is a form separating them like so: <div id="search" jstrack="1"> <form action="/maps" id="...rest isn't important"> ... <div id="search">... Since this is google, I'm assuming it's not a mistake. So how bad can it really be to violate this rule? As long as you are careful in your css and dom selection, why not reuse id's like classes? Does anyone do this on purpose, and if so, why?

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• Should we use python 2.6 or 2.7 or 3.x?

  - by lamwaiman1988

  The version of python which I am using is 2.6, and there is a 2.7 and 3.x. Usually I use python for some trivial program/snippet. I realize there are some major difference between 2.x and 3.x. I would really like to know, if I am going to make a bigger project with python, which version of python should I use? Should I upgrade to 2.7, or go to 3.x or stay with 2.6? The decision should be based on these terms: Number of user in the internet as a community. More users mean more open-source package and help from them. Functionality. Support from official development team. Compatibility for existing module/package. Thanks!

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• Improve Your Database Unit Testing Skills and Win Free Stuff

  As the SQL Developer community grows to embrace the benefits of test-driven development for databases, so the importance of learning to do it properly increases. One way of learning effective TDD is by the use of code kata – short practice sessions that encourage test-first development in baby steps. I have a limited number of licences for SQL Test to give away free – just for practicing a bit of TDD and telling me about it. Keep your database and application development in syncSQL Connect is a Visual Studio add-in that brings your databases into your solution. It then makes it easy to keep your database in sync, and commit to your existing source control system. Find out more.

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• How to choose a company to work in? [on hold]

  - by 0x90

  I would like to make some pro and cons of 3 jobs I can take. I thought of these parameters and rank each option according all of them? What source control system they use ? What debug tools they have ? What profiler tools they use ? Is there a validation team ? How often they build ? What bug control system they use ? For silicon companies: what emulators, simulators, pre-silicon platforms they have ? How supportive is the IT in the company ? Salary/Bonuses What else should I take into consideration ?

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• Release Notes for 4/6/2012

  Here are the notes for this week’s release: Fixed an issue where authenticating against Mercurial using capital letters would fail. Fixed an issue where comments in pull requests were not word wrapping correctly. Fixed an issue where usernames would overflow their allotted space in discussions. Fixed an issue that would cause unexpected errors on the source code pages if you created a Git and Mercurial fork with the same name. Have ideas on how to improve CodePlex? Visit our ideas page! Vote for your favorite ideas or submit a new one. Got Twitter? Follow us and keep apprised of the latest releases and service status at @codeplex.

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• Can I exclude files from Rhythmbox library by filetype?

  - by user69245

  I use Band-in-a-box ("BIAB") to create backing tracks to practice my guitar-playing, and keep the source files (filetype .MGU) created by BIAB in the same folder as the MP3 files derived from them. Because I share this folder with colleagues via Dropbox, I'm not in a position to move the .MGU files elsewhere. Every time I start Rhythmbox ("RB") it checks my music folders, and reports "Import Errors" on all the .MGU files. RB apparently ignores a number of unplayable filetypes in music folders - is there a way of adding .MGU to this group? I know I can just ignore the Import Errors, but one of these days there will be an error I would have wanted to know about.

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• ASUS VX-6 Laptop Wireless not connecting

  - by user2152790

  Someone posted a script a couple days ago, here is my output.Pastebin I can see wifi SSIDs in network, but cannot connect to mine. The only time wifi worked on 13.10 was in the Live CD, but wifi stopped working as soon as install process started. Did below but made no difference. sudo apt-get install bcmwl-kernel-source sudo modprobe -rv brcmsmac sudo modprobe -v wl What I do next? I tried Software&Updates and it showed 1 proprietary driver in use. This sounds like a WPA/WPA2 issue? Wifi works when I tried Zorin OS 7.1, wifi always worked in windows 7.

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• Generating CMakeLists.txt

  - by vanna

  I got a bunch of C++ sources files and headers. They may use external libraries such as Boost e.g. I am interested in the process of building binaries for Windows and *nix. Makefiles (*nix) and .vcproj (Windows) call compilers with some specifications such as the order of compilation, compilation options and stuff. CMakeLists.txt can be used by CMake to build either makefiles or .vcproj and use very helpful commands such as recursive search of files, automatic linkage with known libraries, installers, variables that can be used in source files... Is there any existing tool that would generate a CMakeLists.txt from specified options ? Options could be like : scan this folder and make a library out of it, then scan this other folder and make an executable and automatically link both with Boost as well along with a user friendly installer with generated INSTALL.txt and README.txt. Something very powerful like that.

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• Ubuntu 12.04 edit grub

  - by J. R. Crocker

  I just install Ubuntu 12.04. I want to change the boot order of grub. Previous versions of grub.cfg I was able to change the permissions and the do a gedit. After reloading 12.04, I was able to change permissions for grub.cfg, but gedit will not let me save it. I am a little irritated that Ubuntu is suppose to be open source. However someone has chosen to lock one out of a file. I do realize that some people have no business doing a edit on grub. I am a long time user of Unix and Linix.

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• Resource Managers - Are they any good?

  - by The Communist Duck

  Hey. I've seen many a time in source code, things like this [well, this is more of a pseudo C++ idea of mine] type defshared_ptr ResourcePtr;// for ease ResourcePtr sound1 = resourceManager.Get("boom.ogg"); sound1-Play(); ResourcePtr sprite = resourceManager.Get("sprite.png"); I was just wondering how useful a class like this was, something that: Loaded media files Stored them in memory Did this at the start of a level - loading screen. Cleaned up Rather than having a system of: Resources are held by entities only, or loose. Responsible for own load into memory. The first is a 'manager' as such; something I feel indicates it's wrong to use. However, it allows for something like a vector of resource names to be passed, rather than having to scramble around finding everything that needs to be loaded.

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• Intersection of player and mesh

  - by Will

  I have a 3D scene, and a player that can move about in it. In a time-step the player can move from point A to point B. The player should follow the terrain height but slow going up cliffs and then fall back, or stop when jumping and hitting a wall and so on. In my first prototype I determine the Y at the player's centre's X,Z by intersecting a ray with every triangle in the scene. I am not checking their path, but rather just sampling their end-point for each tick. Despite this being Javascript, it works acceptably performance-wise. However, because I am modeling the player as a single point, the player can position themselves so that they are half-in a cliff face and so on. I need to model them as as a solid e.g. some cluster of spheres or a even their fuller mesh. I am also concerned that if they were moving faster they might miss the test altogether. How should I solve this?

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• Twitter fête l'anniversaire de son Bootstrap et sort la version 2.1, quelle place occupe cette collection d'outils dans vos développements Web ?

  Twitter fête l'anniversaire de son Bootstrap et sort la version 2.1 Quelle place occupe cette collection d'outils dans vos développements Web ? Twitter célèbre une année d'existence de son Bootstrap, un projet de framework/toolkit open source qui « vous aide à construire les applications impressionnantes, avec beauté, rapidité et classe ». En quelques mois, il est devenu le projet le plus populaire sur GitHub. En l'espace d'une année, il s'en est suivi des mises à jour continuelles, des dizaines de fonctionnalités ont été cumulées et des milliers de bogues ont été corrigés pour en faire la collection d'outils la plus riche du marché. L'appréciation de la communauté ...

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• Debugging random reboots

  - by M132

  I'm running Ubuntu 14.04 with 3.16.1 kernel compiled from source, and when I leave my PC running for a long time, it always reboots after about 4-8 days. Nothing is displayed on the screen, everything just freezes for about 3 seconds (and if there was any sound playing, it keeps repeating over and over), and then reboots. This issue also affects kernels compiled by Canonical's build bots. I already tried to debug it with: rsyslog kexec-tools netconsole kernel module None of them seem to be working however. Are there any better methods to check, what exactly fails here? If there's an issue with RAM for example, shouldn't kernel report this in dmesg, or cause a kernel panic?

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• C++ game architecture

  - by rxc

  I'm trying to make a game, but I'm not sure of the best way to set up the main loop and classes. For really small games, I could put everything in the main() loop, including event handling, collision checking, etc. However, for large games, that's seems like a highly inefficient way to get things done. The architecture I want is kind like the way the Minecraft coders did it (I quote Minecraft code because I've seen the source code when downloading MCP). They have objects entity classes EntityCow and EntityChicken and they have methods like onDeath(), onLivingUpdate(); and item classes like ItemSword have methods like onItemUse(). I've never seen these methods get called directly, but apparently, they get stored in a class called DataWatcher, which, I think "watches" all the data (as the name implies) and calls the appropriate methods in the objects. Is that how most games do it? If so, how is the DataWatcher class implemented? Any help or alternate suggestions is really appreciated.

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• How can I install another version of Ubuntu on my computer and then uninstall it without messing up my bootup process?

  - by snowguy

  I have Ubuntu 11.10 installed and I am having some problems with it. I'd like to see if the problems are related to some customizations I did. Since one of my problems relate to the slow logout process, I don't want to use the live version. I want to actually install a new version in a separate partition along side my current version and then, after testing that new version and figuring out what I want, just removing the partition and going back to a single version of Ubuntu on this computer. Does anyone know how to do that without messing up my boot process?

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• Google Analytics Request URI to Event advanced filter

  - by confidentjohn

  I have a query string attached to a Request URI. Whilst I can see this data within the pages report and it works, I was thinking about setting up an advanced filter to convert the request URI to an Event, with the hope this would clean up my pages report and sit this query with related events in my data. I can see in advanced filters that this is possible, but seems limited to specifying a single event area, so Cat, action or Label, not all 3. Does any one know how I could set up an advanced filter to find any URIs that contain a specific query string, say example below. www.example.com?querystring=123 and convert this into an event, where I can set the Cat, action and label.

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• gnome-panel has multiple rows -- how to undo that?

  - by towi

  On Ubuntu 12.04 I use openbox with a single "gnome-panel" started. But after trying to configure my two screen in Xinerama mode I got additional rows of panels each time X restarted. And despite I completely reverted to my one-screen-X-config the gnome-panel displayed has 4 rows (4 at top sreen, 4 at bottom) only the outermost row has content, the other 3 are empty there is only one gnome-panel process running some widgets appear 4 times, too, although they run only once when I switch away from openbox using unity I am back to 1 row temporarily What went wrong here? How do I undo that? Things that did not help: rm -Rf .gnome2 .gconf/ .compiz-1/ pkill panel, and restarting it

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• Profiling Script [closed]

  - by Abhirup Manna

  Possible Duplicate: I need an open source php social script, minus the social features I am looking for a web script in which users can register and create a simple profile page; something like a CV. When users log in they will be able to fill out a simple form with details like name, dob, etc. and it displays in a simple fashion on the profile page like domain.com/username Is there any simple script available for this maybe free or open sourced? An example is prairie identity server (openID). I need something similar but more customizable.

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• Microsoft décide de bannir iTunes de Windows, suite à l'arrivée des doubles standards

  Microsoft décide de bannir iTunes de Windows, suite à l'arrivée des doubles standards Bill Gates vient d'annoncer qu'iTunes serait dorénavant banni de son système d'exploitation Windows. Voici ses déclarations officielles sur le sujet : "Au départ, nous étions très satisfaits qu'Apple ai déployé iTunes sur Windows ; nous avons gagné beaucoup d'utilisateurs grâce à cette seule application. Et puis nous avons entendu dire, par une source fiable, qu'Apple utilisait la même base de code pour iTunes Mac que pour la version Windows. Pire encore, il nous est apparu suite à une inspection plus approfondie qu'iTunes n'utilisait même pas l'API Windows ! Apple a conçu son propre système de scroll sans s'insp...

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• Having a list of rooms with theirs connection to each other, how do I find isolated room groups?

  - by petervaz

  I'm trying to create a small roguelike and went as far as random generating rooms and corridors. Each room is an instanced object and contain an arraylist of the others rooms connected by a corridor. I can single out unconnected rooms but how can I know the rooms that are connected only to each other but not to most of the others, forming an island? to illustrated better the problem here is an image from the console on a bogged level. Rooms 5 and 6 are connected only to each other. What algorithm can I use to detect that?

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