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• Power Query in Modern Corporate BI–Copenhagen, June 3, 2014–#powerquery

  - by Marco Russo (SQLBI)

  I will be in Copenhagen to deliver the SSAS Tabular Workshop on June 2-4, 2014 (few seats still available, but hurry up!). In the same week I will be a speaker in an evening community event, MsBIP møde nr. 21, delivering the Power Query in Modern Corporate BI session that I also presented at TechEd North America 2014 last week. It’s not just a session about Power Query, there is a broader scope related to Corporate BI vs. Self-Service BI, which could be open to many consideration. I think that the two worlds can (and should) collaborate, instead of fighting against each other, especially when there is an existing investment in Corporate BI. I hope to meet many of you there!

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• Summer Upgrade Workshops are Open!

  - by roy.swonger

  The listing of upcoming events is located in the right sidebar of the main blog page, down below the flag counter. If you haven't checked out our schedule lately, you might be surprised at how active we will be with travel this summer. Coming up next week will be upgrade workshops in the USA (St. Louis and Minneapolis) followed by a pair in Canada (Toronto and Montreal) and then two in Europe (Brussels and Utrecht). Make your plans now to attend an upgrade workshop in your area. As you can see from the long list of planned events, it is very likely that Mike or I will be coming to your area sometime soon!

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• Suggestions on Calculating Advertising Rates [closed]

  - by Jonathan Wood

  Possible Duplicate: How do I set a price for advertising on my website? I recently launched a new developer website, Black Belt Coder. The site is only seeing about 150 visitors per day but, given that it's only been live two months, I feel I'm off to a good start. I'd like to start monetizing the site as soon as possible but consider AdSense and other programs largely a waste of time. I'd like to deal directly with the advertisers but have no idea what to charge. Are there any guidelines for determining advertising rates based on visitors or page views? I don't expect to do PPC. I want to charge a the time period for banner ads, knowing that advertisers will be keeping an eye on the number of clicks.

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• can you have too many dto/bo - mapping method

  - by Fredou

  I have a windows service, 2 web services and a web interface that need to follow the same path (data wise). So I came up with two ways of creating my solution. My concern is the fact that the UI/WS/etc will have their own kind of DTO (let's say the model in ASP.Net MVC) that should be mapped to a DTO so the SL can then map it to a BO then mapping it to the proper EF6 DTO so that I can save it in a database. So I'm thinking of doing it this way to remove one level of mapping. Which one should I take? Or is there a 3rd solution?

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• How do you measure the effectiveness of your hiring & interview process?

  - by Yevgeniy Brikman

  Although I've seen many discussions on how to do an interview and develop your brand, I haven't seen many discussions on how to determine if your hiring & interview process is actually working well. I think this question has two parts: How do you know your hiring process is getting the right candidates to apply and go through the interview process? Of the people that you end up interviewing, how can you tell that the ones you choose to hire are better (on average) than those that you rejected? I suppose the "extreme" cases - when you end up with a superstar or a total dud - are pretty obvious, but what about the rest?

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• How to implement soft edge areas with particles

  - by OpherV

  My game is created using Phaser, but the question itself is engine-agnostic. In my game I have several environments, essentially polygonal areas that player characters can move into and be affected by. For example ice, fire, poison etc' The graphic element of these areas is the color filled polygon area itself, and particles of the suitable type (in this example ice shards). This is how I'm currently implementing this - with a polygon mask covering a tilesprite with the particle pattern: The hard edge looks bad. I'd like to improve by doing two things: 1. Making the polygon fill area to have a soft edge, and blend into the background. 2. Have some of the shards go out of the polygon area, so that they are not cut in the middle and the area doesn't have a straight line for example (mockup): I think 1 can be achieved with blurring the polygon, but I'm not sure how to go about with 2. How would you go about implementing this?

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• Transisting from Chemical engineering to software industry what to do??

  - by console cowboy

  Hello all. Currently I am in my last semester of Engineering & has made my mind to switch to software field but given my knowledge of programming limited only to C. I am confused what to do next.Currently i have two choices. 1) Get good at C,Learn Python & write some good code/Apps & increase my employability chances. Or 2) Do some Java/.Net certifications to increase my employability chances. Any kind of advice/suggestion is highly welcomed. P.s:I am also good at Linux & have a above average knowledge of operating systems. P.p.s:An view from Indian Programmers would be beneficial.

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• How do I include Implementation and Usage Documentation in one file

  - by Angelo.Hannes

  There are two types of documentation. One type, the Implementation Documentation, contains information about specific implementation of a construct (eg. Class, Method, etc.). It is targeted to the future me, maintainer, debugger and so on. And there is Usage Documentation, containing information how to use a provided api. It does not contain information about specific implementation and is targeted to users of the api. How do I include both of them in one file? (Or do I include both of them in one file? And if not, what type belongs into the source file?) Are there special techniques, using java-doc and/or best practices?

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• Beginner question about vertex arrays in OpenGL

  - by MrDatabase

  Is there a special order in which vertices are entered into a vertex array? Currently I'm drawing single textures like this: glBindTexture(GL_TEXTURE_2D, texName); glVertexPointer(2, GL_FLOAT, 0, vertices); glTexCoordPointer(2, GL_FLOAT, 0, coordinates); glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); where vertices has four "xy pairs". This is working fine. As a test I doubled the sizes of the vertices and coordinates arrays and changed the last line above to: glDrawArrays(GL_TRIANGLE_STRIP, 0, 8); since vertices now contains eight "xy pairs". I do see two textures (the second is intentionally offset from the first). However the textures are now distorted. I've tried passing GL_TRIANGLES to glDrawArrays instead of GL_TRIANGLE_STRIP but this doesn't work either. I'm so new to OpenGL that I thought it's best to just ask here :-) Cheers!

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• Multi-Threaded Pipelined Game Engine Data Synchronization Questions

  - by Douglas

  Let's say I'm setting up a worker pool based game engine with pipelining. Let's say I have 4 stages in my pipeline as such: Stage 1: Physics Stage 2: AI/Input Stage 3: Game Logic Stage 4: Rendering Now let's say that the physics detects a collision between a bullet and a character in stage 1. Two frames later the game logic may choose to remove that bullet from the simulation, however none of the other copies of the data for the other pipeline stages will get this information. How is this sort of thing and other things like it get handled? Do you generally make changes like this to every pipeline stage's data at the end of a frame?

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• Is there now any way to convert mp3 files to m4a or aac 192kbit?

  - by piedro

  Since about two years now I am trying to find a way to convert high quality mp3 files to m4a or aac files with a fixed bitrate 192k. Please don't suggest using another format - i thought this through as far as it goes. The problem here is: ffmpeg obvioulsy can't convert to a higher bitrate than 152k. Even when it says it does so the resulting files still have 152k instead of 192k. ffmpeg also has/had a bug not writing the bitrate into the audio file tags which means when testing you have to calculate the bitrate manually by dividing the filesize by the length of the audio in seconds (resulting in 152k - see above) choosing faac as converter gets me the same results other programs don't work reliably (see this thread Howto convert audio files to *.m4a? I know that this is not an original new problem but I am wondering if there is still no way to convert with ubuntu/kubuntu 12.04 after a lot time passed and I can't find some of the bug issues mentioned in the other thread anymore. So: Is there a solution after all?

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• Slow Internet Performance in 12.04 LTS

  - by Mad

  Have installed Ubuntu 12.04 LTS. I have encountered the below problems. 1. Have two OS. Internet is too slow in U 12.04 compared to Windows 7 2. System Performance is very slow 3. After installing Ubuntu 12.04, my brightness is dark during the initiail time. However, I have resolved this issue and found to be working fine. 4. Unable to connect Wireless network after inputing security credentials. Please note, I am beginner to this Linux. Would Appreciate if someone could explain in step by step to overcome the above issues.

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• Book about tcp, http, named pipe, shared memory, wcf and other inter-process communication protocol

  - by Samuel

  Recently, I had to create a program to send messages between two winforms executable. I used a tool with simple built-in functionalities to prevent having to figure out all the ins and outs of this vast quantity of protocols that exist. But now, I'm ready to learn more about the internals difference between each of theses protocols. I googled a couple of them but it would be greatly appreciate to have a good reference book that gives me a clean idea of how each protocol works and what are the pros and cons in a couple of context. Here is a list of nice protocols that I found: Shared memory TCP List item Named Pipe File Mapping Mailslots MSMQ (Microsoft Queue Solution) WCF I know that all of these protocols are not specific to a language, it would be nice if example could be in .net. Thank you very much.

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• Why are more programmers not freelance these days? [closed]

  - by Pierre 303

  Leaving the whole pie to only a few of them, amplifying the huge differences between the two status. Pay is a (huge) one, not having to do overtime is another. I leave the question open to hopefully get many great answers on all the different subjects that affects that feeling and decision not to go. EDIT: While this question is really global, I'll be interested in any studies, facts, articles, opinions regarding local markets such as US, India and even Australia in which I'm in love with. EDIT2: Bounty of 500 points for anyone that will come with recent studies on the subject. If multiple answers, will pick the one with the most upvotes.

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• How to Power Cycle Your Gadgets To Fix Freezes and Other Problems

  - by Chris Hoffman

  Have you ever had a smartphone, laptop, tablet, or any other electronic gadget become unresponsive? The surefire way to recover from the freeze – assuming it’s not a hardware problem – is by power-cycling the gadget. Most geeks know that pulling and reinserting a device’s battery will force it to recover from a freeze and boot right back up, but what if the device doesn’t have a removable battery? Image Credit: Alan Levine on Flickr Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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• "mountall: Disconnected from Plymouth" error in VirtualBox

  - by jonpavelich

  I installed Ubuntu (from the 11.10 Alternate CD, selecting "command-line only" mode before installing) in Virtualbox (Mac OS X Lion host) like I've done numerous times before. Installation finished without any problems, and I rebooted into my new system. Got the splash screen, it loaded, and right where it should've given me a login prompt, I got (in orange) mountall: Disconnected from Plymouth. I can just hit control + alt (option) + F1 to get the login prompt on tty1, and the system acts normally. This happens on every boot. The disk has two partitions, a 250 MB /boot partition and a 99.75 GB encrypted partition. The encrypted partition has LVM on it. One volume group, 3 volumes (swap, / (root filesystem) , and /home. At first I thought the error was from one of the LVM volumes not mounting, but they are all accessible. It isn't a critical error, but it is annoying. Any ideas?

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• Is it possible to get a job in a high-demand company without having hobby projects?

  - by Rachel

  I was curious if the recruitment team at high-demand companies such as Google takes a lack of hobby projects into consideration when evaluating candidates. I'm a straight 40 hour/week programmer, who is lucky to spend an hour or two a month outside of work on anything programming related. I love hanging out on SO/SE during my breaks at work, and love answering questions, but after work I leave the programming world and go back to my life. I already understand that you don't need hobby projects to be a good programmer, but does this lack of hobby projects affect my chances getting a job at a company that always has a long list of candidates trying to get in?

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• Does 64-bit Ubuntu work on the Acer Aspire One D255

  - by hippietrail

  The Acer Aspire One D255 is the cheapest dual core netbook on the market right now. It has an Intel Atom N550 which should be able to run a 64-bit OS. But when I try to boot the Ubuntu 64-bit live CD I only get one line of diagnostic output that it "found something" on the USB CD drive before locking up. I haven't been able to find anything by Googling yet. Could it just be driver issues for this machine or could the platform be inherently frail for running 64-bit? (My machine is two days old on trial and Windows 7 and Ubuntu 32-bit run but it has locked up under casual use on both OSes.)

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• Why 11.10 says plymouth errors and "Checking battery state..."?

  - by Aleksi Kinnunen

  I've just installed new Ubuntu 11.10. The installation was successful. But when I start the Ubuntu, the splash screen does not work, and I get error (always some of these) "mountall: Plymouth command failed", "mountall: Connect to Plymouth was lost" or "Checking battery state..." I'm sorry, if the error messages are incorrect because I translated two first of them from Finnish (my system is in Finnish) to English, so they maybe couldn't be just right. I have already asked from our Finnish community, but they couldn't answer. Could anybody here?

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• Should actors in a game be responsible for drawing themselves?

  - by alex

  I am very new to game development, but not to programming. I am (again) playing around with a Pong type game using JavaScript's canvas element. I have created a Paddle object which has the following properties... width height x y colour I also have a Pong object which has properties such as... width height backgroundColour draw(). The draw() method currently is resetting the canvas and that is where a question came up. Should the Paddle object have a draw() method responsible for its drawing, or should the draw() of the Pong object be responsible for drawing its actors (I assume that is the correct term, please correct me if I'm incorrect). I figured that it would be advantagous for the Paddle to draw itself, as I instantiate two objects, Player and Enemy. If it were not in the Pong's draw(), I'd need to write similar code twice. What is the best practice here? Thanks.

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• how can i safely remove an external hard drive?

  - by Edmond Condillac

  Two of the three icons of the drive's partitions show on the desktop. One has disappeared and the contents are not accessible. Right clicking on the desktop icon of the partition gives the option to eject. Then the error message shows that the drive is busy and cannot be shut down. The drive is continually pinning. Kindly advise if possible how to safely remove the drive. Can the lost icon of the third drive and the datd contained in it be found, please? Kind regards

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• Use Case Diagrams - should I create a diagram just for a view business rule?

  - by Periback

  I'm modeling a UCD where I have two actors ( a content producer and a developer).. the content producer is going to create and specify details of a storyboard functionality, and the other actor (developer) will only be able to view this storyboard ( he'll log in the application and read the storyboard to start developing what it says, outside the application..) I'm working on the specification of this storyboard functionality and I'd like to know it would be like a best-practice if I describe something like " actor- developer", "UCD - read scenes of storyboard" . This is the specification of an application I developed for my thesis and they asked me to add some specification...

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• How do I X forward a Windows application to a Linux system using ssh?

  - by triunenature

  Ok, so if I have two Linux Machines (A and B) and I have a program on one, and want to run it on be I do: user@LinuxA:~$ ssh -X LinuxB user@LinuxB:~$ programName (Displays on LinuxA machine) Ok same thing, WindowsA LinuxB (Program on Linux) Start Xming X Server on Windows Run Putty, use x11 port forward with :0.0 After connect to LinuxB, run program, it loads in Windows! Now here is the question, WindowsA LinuxB, (Program on Windows) Run Windows Program On Linux, using a windows resources. How to make it work? BTW, I know it can because years ago, I read a white paper on it, but never actually tested it out.

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• Ubuntu One Preferences does not show usage, name, e-mail, current plan

  - by Jim

  Ubuntuone is correctly synchronizing selected files between two computers running Ubuntu 10.10. When I open Ubuntuone Preferences, Account tab, on one computer it does not display the usage, name e-mail or current plan. On the other computer all information is shown correctly. On the Devices tab the 2 computers are not shown. They do show correctly on the other computer. Any ideas on how to fix this problem. I have reinstalled Ubuntuone per this link.

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• How to recognize a good programmer?

  - by gius

  Our company is looking for new programmers. And here comes the problem - there are many developers who look really great at the interview, seem to know the technology you need and have a good job background, but after two moths of work, you find out that they are not able to work in a team, writing some code takes them very long time, and moreover, the result is not as good as it should be. So, do you use any formalized tests (are there any?)? How do you recognize a good programmer - and a good person? Are there any simple 'good' questions that might reveal the future problems? ...or is it just about your 'feeling' about the person (ie., mainly your experience), and trying him out? Edit: According to Manoj's answer, here is the question related to the coding task at the job interview.

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