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  • SQL SERVER Checklist for Analyzing Slow-Running Queries

    I am recently working on upgrading my class Microsoft SQL Server 2005/2008 Query Optimization and & Performance Tuning with additional details and more interesting examples. While working on slide deck I realized that I need to have one solid slide which talks about checklist for analyzing slow running queries. A quick search on my saved [...]...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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  • From the Tips Box: iPad Interface Emulation for Windows, Easy Access iPhone Flashlight, and Kindle Collection Management

    - by Jason Fitzpatrick
    Once a week we round up some of the great reader tips to share. Today we’re looking at an iPad interface emulator for Windows, a fast-access flashlight app for the iPhone, and a Windows-based way to organize Kindle collections. Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive Follow How-To Geek on Google+

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  • Emtel Knowledge Series - Q2/2014

    From Cyber Island to Smart Mauritius Cyber Island? Smart Mauritius? - What is Emtel talking about? "With the majority of the population living in urban environments today, the concept of "Smart Cities" has become an urgent necessity. "Smart Cities" refer to an urban transformation which, by using latest ICT technologies makes cities more efficient. Many Governments are setting out ambitious plans to build the cities of the future based on massive connectivity, high bandwidth communications, intelligent sensors and analysis of huge volumes of data. Various researches have shown four key enablers for smart city success - Government leadership, suitable technology infrastructure, solid public-private partnerships and engaged citizens. It is around these enabling factors that telecoms companies can play a vital role in assisting governments to deliver on the smart city vision." The Emtel Knowledge Series goes in compliance with Emtel's 25th anniversary celebrations throughout the year and the master of ceremony, Kim Andersen, mentioned that there will be more upcoming events on a quarterly base. As a representative of the Mauritius Software Craftsmanship Community (MSCC) there was absolutely no hesitation to join in again. Following my visit to the first Emtel Knowledge Series workshop back in February this year, it was great to have another opportunity to meet and exchange with technology experts. But quite frankly what is it with those buzz words... As far as I remember and how it was mentioned "Cyber Island" is an old initiative from around 2005/2006 which has been refreshed in 2010. It implies the empowerment of Information & Communication Technologies (ICT) as an essential factor of growth by the government here in Mauritius. Actually, the first promotional period of Cyber Island brought me here but that's another story. The venue and its own problems Like last time the event was organised and held at the Conference Hall at Cyber Tower I in Ebene. As I've been working there for some years, I know about the frustrating situation of finding a proper parking. So, does Smart Island include better solutions for the search of parking spaces? Maybe, let's see whether I will be able to answer that question at the end of the article. Anyway, after circling around the tower almost two times, I finally got a decent space to put the car, without risking to get a ticket or damage actually. International speakers and their experience Once again, Emtel did a great job to get international expertise onto the stage to share their experience and vision on this kind of embarkment. Personally, I really appreciated the fact they were speakers of global reach and could provide own-experience knowledge. Johan Gott spoke about the fundamental change that the Swedish government ignited in order to move their society and workers' environment away from heavy industry towards a knowledge-based approach. Additionally, we spoke about the effort and transformation of New York City into a greener and more efficient Smart City. Given modern technology he also advised that any kind of available Big Data should be opened to the general public - this openness would provide a playground for anyone to garner new ideas and most probably solid solutions of which no one else thought about before. Emtel Knowledge Series on moving from Cyber Island to Smart Mauritus Later during the afternoon that exact statement regarding openness to and transparency of government-owned Big Data has been emphasised again by the Danish speaker Kim Andersen and his former colleague Mika Jantunen from Finland. Mika continued to underline the important role of the government to provide a solid foundation for a knowledge-based society and mentioned that Finnish citizens have a constitutional right to broadband connectivity. Next to free higher (tertiary) education Finland already produced a good number of innovations, among them are: First country to grant voting rights to women Free higher education Constitutional right to broadband connectivity Nokia Linux Angry Birds Sauna and others...  General access to internet via broadband and/or mobile connectivity is surely a key factor towards Smart Cities, or better said Smart Mauritius given the area dimensions and size of population. CTO Paul Valette gave the audience a brief overview of the essential role that Emtel will have to move Mauritius forward towards a knowledge-based and innovation-driven environment for its citizen. What I have seen looks really promising and with recently published information that Mauritians have 127% of mobile capacity - meaning more than 1 mobile, smartphone or tablet per person - it will be crucial to have the right infrastructure for these connected devices. How would it be possible to achieve a knowledge-based society? YouTube to the rescue!Seriously, gaining more knowledge will require to have fast access to educational course material as explained by Dr Kaviraj Sukon, General Director of the Open University of Mauritius. According to him a good number of high-profile universities in the world have opened their course libraries to the general public, among them EDX, Coursera and Open University. Nowadays, you're actually able and enabled to learn for and earn a BSc or even MSc certification on your own pace - no need to attend classed on campus. It was really impressive to see the number of available hours - more than enough for a life-long learning experience! {loadposition content_adsense} Networking in the name of MSCC As briefly mentioned above I was about to combine two approaches for this workshop. Of course, getting latest information and updates on Emtel services available, especially for my business here on the west coast of the island, but also to meet and greet new people for the MSCC. And I think it was very positive on both sides. Let me quickly describe some of the key aspects that happened during the day: Met with Arnaud Meslier and Kellie, both Microsoft to swap latest information on IT events. Hereby, I got an invite to Microsoft Windows Phone 8.1 Dev Camp. Got in touch with Arvin Lockee, Emtel to check our options to meet with the data team, and seizing the opportunity to have a visiting tour at the Emtel Data Centre. Had a great chat with Avinash Meetoo, Knowledge 7, Kim Andersen and Mika Jantunen about the situation of teaching and learning in general and specifically in the private sector here in Mauritius. Additionally, a number of various other interesting chats... Once again, I'm catching up on a couple of business cards in order to provide more background information about the MSCC, and to create a better awareness of MSCC within the local IT businesses. There is more to come soon!  Resume of the day The number of attendees during this event has been doubled or even tripled this time. The whole organisation has been improved massively and the combination of presentation and summarizing panel discussions was better than during the previous workshop back in February. Overall, once again a well-organised workshop and I'm already looking forward to join the next workshop in Q3. Update End of July we finally managed to visit the Emtel Data Centre in Arsenal. It was an interesting opportunity for some of our MSCC members.

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  • Week in Geek: Study finds Men more Likely to Fall for Facebook Scams

    - by Asian Angel
    This week we learned how to “read Blue Screen codes, clean your computer, & get started with scripting”, upgrade or install Mac OS X Lion on a Hackintosh using UniBeast, use Amazon’s barcode scanner to easily buy anything from your phone, had fun with a great set of geeky do-it-yourself projects for pets, got introduced to How-To Geek’s new Google+ account, and more. Photo by mac_filko. Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive Follow How-To Geek on Google+

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  • Common mistakes when building a quality website

    A Google search on ?how to build a website? will give you hundreds of thousands websites with simple text and video tutorials, most tender rock-solid theory and ideas, but which teach you why and how... [Author: Johnny Hughes - Web Design and Development - April 07, 2010]

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  • LightDM Backgroud is a simple purple radiant

    - by Zahidul Islam
    It seems after I tried to change the login screen background with Ubuntu Tweak, the greeter's background stays a simple purple background with just the spots.. I tried using dconf-editor, rechanging the image from Ubuntu Tweak back to the default, it still does not work. So In The End, everything for the lightdm points to /usr/share/backgrounds/warty-final-ubuntu.png. But it's still a purple solid color. How do I fix it?

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  • High Performance Storage Systems for SQL Server

    Rod Colledge turns his pessimistic mindset to storage systems, and describes the best way to configure the storage systems of SQL Servers for both performance and reliability. Even Rod gets a glint in his eye when he then goes on to describe the dazzling speed of solid-state storage, though he is quick to identify the risks....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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  • How do you version/track changes to SQL tables?

    - by gabe.
    When working in a team of developers, where everyone is making changes to local tables, and development tables, how do you keep all the changes in sync? A central log file where everyone keeps their sql changes? A wiki page to track alter table statements, individual .sql files that the devs can run to bring their local db's to the latest version? I've used some of these solutions, and I'm tyring to get a good solid solution together that works, so I'd appreciate your ideas.

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  • Apple Security Isn't a Sure Bet

    <b>Enterprise Networking Planet:</b> "Apple Macs are secure because they don't get computer viruses, and because OS X, the operating system they run, is based on the rock-solid and highly secure BSD UNIX."

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  • Ask HTG: Disabling Windows Startup Programs, Using DNS Names on Your Home Network, and Restoring a Vintage Keyboard

    - by Jason Fitzpatrick
    Once  a week we round up some of the answers we’ve sent out to readers and share them with everyone. This week we’re looking at removing programs from the Windows startup routine, using DNS names on the local network, and restoring a vintage keyboard. HTG Explains: Do You Really Need to Defrag Your PC? Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive

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  • Desktop Fun: Foggy Mornings Wallpaper Collection

    - by Asian Angel
    Foggy mornings are special times where everything is wrapped in a quiet calmness while the world is slowly waking up. Bring the peace and beauty of those early mornings to your desktop with our Foggy Mornings Wallpaper collection. Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive Follow How-To Geek on Google+

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  • black screen and blinking cursor for a while in ubuntu 12.04 during boot

    - by Soumyadip Mukherjee
    I've installed ubuntu 12.04.1 "rock solid" \m/ everything works fine apart from the fact that during startup...the usual purple screen and ubuntu logo doesnt appear...only a black screen and blinking cursor is visible...then after a while for a fraction of a second the ubuntu logo and purple screen comes and disappear to the login page...i tried plymouth but it didnt help in solving the problem...but i did end up changing the logo to a more artistic one :) any one plz help...my ubuntu is installed on my asus 1225c netbook.. thank you

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  • Five Fake Sounds Engineered to Make Your Feel Better [Science]

    - by Jason Fitzpatrick
    As objects in our environment (like cars, ATMs, and phones) have grown lighter and quieter scientists have been carefully engineering their sounds so that they continue to sound like we expect them to. Read on to see how. At the design blog Humans Invent they share five interesting ways that the world around us is being engineered so it sounds the way we expect it to. They start with the example of the car door. Years ago cars were almost entirely steel, the doors were weighty, and when you slammed them it sounded like one big hunk of steel locking into another big hunk of steel (which, in fact, it was). Newer cars are lighter but people still crave that substantial clunk. Humans Invent highlights the effect of consumer desire: A car door is essentially a hollow shell with parts placed inside it. Without careful design the door frame amplifies the rattling of mechanisms inside. Car companies know that if buyers don’t get a satisfying thud when they close the door, it dents their confidence in the entire vehicle. To produce the ideal clunk, car doors are designed to minimise the amount of high frequencies produced (we associate them with fragility and weakness) and emphasise low, bass-heavy frequencies that suggest solidity. The effect is achieved in a range of different ways – car companies have piled up hundreds of patents on the subject – but usually involves some form of dampener fitted in the door cavity. Locking mechanisms are also tailored to produce the right sort of click and the way seals make contact is precisely controlled. On average it takes 1.8 seconds to close a car door but in that time you’re witnessing a strange kind of symphony composed by engineers and designers whose goal is to reassure you that its rock solid. They mention lock mechanisms, something you may never have thought about. A friend of mine had a Ford Focus some years ago and that particular model had electric locks that, instead of giving a satisfying thunk or solid click, made this horrible gates-of-the-prison-buzzing sound that was completely unnerving. Hit up the link below to see how sounds are engineered for car doors, electric motors, ATM machines, and more. 5 Fake Sounds Designed to Help Humans [Humans Invent via Boing Boing] How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is CompromisedHow to Clean Your Filthy Keyboard in the Dishwasher (Without Ruining it)

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  • Search Engine Optimisation Takes Time - Why You Should Give Your Campaign a Chance to Work

    Being an SEO company or consultancy, it is quite often very difficult, if not near impossible, to set expectations that the client can understand, especially when asking for guarantees or time scales. An SEO campaign can really take three months of solid and hard work to really show the impact, although you can start to see improvements within a couple a of days if you are doing things correctly.

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  • Java EE Web Services study guides

    - by Marthin
    I´m going for the Java EE 6 Web Services Developer certificat but I´m having a hard time to find som solid study guides and mock exams. I already have the JPA and very soon EJB cert so i´m not new to this stuff but I´v looked at coderanch and other places but all information seems a bit outdated. So any tips for books, mock exams free or not, tutorials or other guides would be very much appreciated. EDIT: I will of course read all JSR´s needed.

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  • Circle-Rectangle collision in a tile map game

    - by furiousd
    I am making a 2D tile map based putt-putt game. I have collision detection working between the ball and the walls of the map, although when the ball collides at the meeting point between 2 tiles I offset it by 0.5 so that it doesn't get stuck in the wall. This aint a huge issue though. if(y % 20 == 0) { y+=0.5; } if(x % 20 == 0) { x+=0.5; } Collisions work as follows Find the closest point between each tile and the center of the ball If distance(ball_x, ball_y, close_x, close_y) <= ball_radius and the closest point belongs to a solid object, collision has occured Invert X/Y speed according to side of object collided with The next thing I tried to do was implement floating blocks in the middle of the map for the ball to bounce off of. When a ball collides with a corner of the block, it gets stuck in it. So I changed my determineRebound() function to treat corners as if they were circles. Here's that functon: `i and j are indexes of the solid object in the 2d map array. x & y are centre point of ball.` void determineRebound(int _i, int _j) { if(y > _i*tile_w && y < _i*tile_w + tile_w) { //Not a corner xs*=-1; } else if(x > _j*tile_w && x < _j*tile_w + tile_w) { //Not a corner ys*=-1; } else { //Corner float nx = x - close_x; float ny = y - close_y; float len = sqrt(nx * nx + ny * ny); nx /= len; ny /= len; float projection = xs * nx + ys * ny; xs -= 2 * projection * nx; ys -= 2 * projection * ny; } } This is where things have gotten messy. Collisions with 'floating' corners work fine, but now when the ball collides near the meeting point of 2 tiles, it detects a corner collision and does not rebound as expected. I'm a bit in over my head at this point. I guess I'm wondering if I'm going about making this sort of game in the right way. Is a 2d tile map the way to go? If so, is there a problem with my collision logic and where am I going wrong? Any advice/feedback would be great.

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  • Crystal Reports: 3 New Uses For Sub Reports

    I hate sub reports and always consider them the last resort in any reporting solution. The negative effect on performance and maintainability is just not worth the easy ride they give the report writer. Nine times out of ten reporting requirements can be met using a little forethought and planning (and a solid understanding of formulas). With that said, there are a few novel ways of using sub reports which will not affect performance and actually prove a boon to the developer.

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  • Friday Fun: Exit Searcher

    - by Asian Angel
    Have you had a long week at work and need something to alleviate the boredom while waiting for Friday to finish out? Then dive into this week’s game where your skills as an escape artist will be put to the test while trying to escape the rooms you are trapped in. Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive Follow How-To Geek on Google+

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  • Realtime rendering using a ray tracing engine

    - by Keyhan Asghari
    I want to render an object that has a mesh with one million hexagonal elements(100 * 100 * 100). Lights, shadows and textures is not important and each element has a solid color. and finally, the actions I want to have, is simply rotating the object, zooming and panning. I am wondering what ray tracing engine is better for my conditions. or, do I have to take another approach? any help will be appreciated.

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  • PowerPivot, Stocks Exchange and the Moving Average

    - by AlbertoFerrari
    In this post I want to analyze a data model that perform some basic computations over stocks and uses one of the most commonly needed formula there (and in many other business scenarios): a moving average over a specified period in time. Moving averages can be very easily modeled in PowerPivot, but there is the need for some care and, in this post, I try to provide a solid background on how to compute moving averages. In general, a moving average over period T1..T2 is the average of all the values...(read more)

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  • Chrome trims the last <li> element in a row [closed]

    - by Paul
    Ok guys, I give up. Here's the code I'm struggling with: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html;charset=utf-8" /> <title>Blah</title> <style type="text/css"> #container { margin: 0 auto; width: 350px; border: 1px solid #ccc; } ul { list-style-type: none; margin: 0; padding: 0; text-align: center; } ul li { display: inline; padding: 5px; margin: 0 1px; background-color: lime; line-height: 2em; /* border: 1px solid red; */ } </style> </head> <body> <div id="container"> <ul> <li>Element A</li> <li>Element B</li> <li>Element C</li> <li>Element D</li> <li>Element E</li> <li>Element F</li> </ul> </div> </body> </html> Why the heck does Chrome trim the right side of "Element D" (even though there is enough space to display whole item), while Firefox and even Internet Explorer render this code properly? It becomes more visible when we apply the commented border. In other words, is there a way to tell the browser that I want every single <li> element to be autonomic, and thus to move it to the next row if it doesn't fit entirely in the previous one? Can't wait to see the solution, thanks in advance.

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  • 7 Ways To Free Up Hard Disk Space On Windows

    - by Chris Hoffman
    Hard drives are getting larger and larger, but somehow they always seem to fill up. This is even more true if you’re using a solid-state drive (SSD), which offers much less hard drive space than traditional mechanical hard drives. If you’re hurting for hard drive space, these tricks should help you free up space for important files and programs by removing the unimportant junk cluttering up your hard disk. Image Credit: Jason Bache on Flickr 7 Ways To Free Up Hard Disk Space On Windows HTG Explains: How System Restore Works in Windows HTG Explains: How Antivirus Software Works

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  • How to Find a Niche Using Keyword Research and Analysis

    Everyone coming online now with dreams of selling their way to financial freedom usually has one question in common: how to find a niche that they can sell. This is a question that must be answered, and I believe the answer lies in using solid keyword research and analysis to uncover the gems that may be lying hidden at your feet in any particular market.

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  • MySQL Open Source Backup and Recovery Alternative: Xtrabackup

    MySQL database administrators are always looking for a solid backup and recovery tool that will suit all their needs. Xtrabackup, created by Percona, is the open source alternative to the commercial Innodb Hot Backup tool. This article explains a good methodology for testing and verifying Xtrabackups capabilities and precision.

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