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• Windows 7 Virtualized on Ubuntu Server

  - by garbagecollector

  I have an issue, we are moving to a production build server now. I need a virtual machine up and running on my Ubuntu 10.10 server edition. I have to setup and install various tool and plugins, on this windows 7 virtual machine as well The problem I am facing is how do I install windows 7 on this machine ( ubuntu 10.10 server) also, how am i supposed to gain access to it in order to install tools that are required on it. I would prefer virtual box as my tool of choice. Please and thank you.

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• How can I reorient the axes of an object?

  - by d3vid

  I spent some time in Unity yesterday trying to fire a sphere from a horizontal cylinder (like a ball from a cannon). I was using Vector3.forward, but the sphere kept coming out the top of the cylinder rather than the front. Someone suggested using Vector3.up instead, and sure enough it worked! The cylinder is vertical by default. So, it appears that when I rotated the cylinder by 90 degrees to lay it flat, the local axes remained the same. The relative front of the cylinder remained at the same point, so when I fired the sphere it shot out the new "top", not what looked to me like the "front". If I had happened to be facing the other way, I would have had to fire at Vector3.down instead. How can I reorient/reset the axes of an object so that they match my expectations? (And if I can't, how can I tell by looking which way an object is oriented?)

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• WebLogic 12c and Glassfish ppt presentations

  - by JuergenKress

  We updated our WebLogic Community Workspace with the lastest customer facing presentations in ppt format: We recommend to use this presentations for your customer meetings, please feel free to add your service offerings, references and Specialization information: Oracle WebLogic Suite CVC 08.2012.pptx GlassFish Server Technical Overview 08.2012.pptx For all customer presentation in ppt format, please visit the WebLogic Community Workspace (WebLogic Community membership required). WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. BlogTwitterLinkedInMixForumWiki Technorati Tags: ppt,presentation,Glassfish,glassfish ppt,WebLogic ppt,presenation,sales,WebLogic Community,Oracle,OPN,Jürgen Kress

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• Python script as a service on Ubuntu 11.10

  - by bugs99

  I am facing the following problem. I want to run a python script as a service on Ubuntu 11.10 system (already mentioned in the following link: Python service using Upstart on Ubuntu) I followed the steps mentioned in the above mentioned link, but i got the following error message in syslog: init: script main process (21826) terminated with status 1 Jun 8 16:59:55 bilbo kernel: [263012.984531] init: script main process ended, respawning Jun 8 16:59:55 bilbo kernel: [263013.044099] init: script main process (21827) terminated with status 1 The above two lines are getting repeated all the time. On saying sudo start script, I get the following: $ sudo start script script start/running, process 21826 Following is the content of my script.conf placed in /etc/init: description "Used to start python script as a service" author "bilbo" start on runlevel [2] stop on runlevel [06] exec python /home/bilbo/scripts/webserver.py respawn Please tell me what I am doing wrong? Do I have to change my python code as well?

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• Anti-aliasing works for debug runtime but not retail runtime

  - by DeadMG

  I'm experimenting with setting various graphical settings in my Direct3D9 application, and I'm currently facing a curious problem with anti-aliasing. When running under the debug runtime, AA works as expected, and I don't have any errors or warnings. But when running under the retail runtime, the image isn't anti-aliased at all. I don't get any errors, the device creates and executes just fine. As I honestly have little idea where the problem is, I will simply give a relatively high-level overview of the architecture involved, rather than specific problematic code. Simply put, I render my 3D content to a texture, which I then render to the back buffer. Any suggestions as to where to look?

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• How to create projection/view matrix for hole in the monitor effect

  - by Mr Bell

  Lets say I have my XNA app window that is sized at 640 x 480 pixels. Now lets say I have a cube model with its poly's facing in to make a room. This cube is sized 640 units wide by 480 units high by 480 units deep. Lets say the camera is somewhere in front of the box looking at it. How can I set up the view and projection matrices such that the front edge of the box lines up exactly with the edges of the application window? It seems like this should probably involve the Matrix.CreatePerspectiveOffCenter method, but I don't fully understand how the parameters translate on to the screen. For reference, the end result will be something like Johhny Lee's wii head tracking demo: http://www.youtube.com/watch?v=Jd3-eiid-Uw&feature=player_embedded P.S. I realize that his source code is available, but I am afraid I haven't been able to make heads or tails out of it.

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• Kernel Panic: line 61: can't open /scripts/functions

  - by Pavlos G.

  I'm facing a problem with all the kernels installed at my system (Ubuntu 10.10 64-bit). Installed kernel versions: 2.6.32-21 up to 2.6.35.23. The booting halted with the following error: init: .: line 61: can't open '/scripts/functions' Kernel panic - not syncing: Attempted to kill init! Pid: 1, comm: init not tainted Only the first one (2.6.32-21) was working up until know. I asked for help at ubuntuforums.org and i was told to check if there's any problem regarding my graphics card (ATI Radeon). I uninstalled all the ATI-related packages as well as all the unecessary xserver-xorg-video-* drivers that were installed. I then rebooted and from then on ALL of the kernels halt with the same error (i.e. it didn't fix the problematic kernels, it just broke the only one that was working...) Any ideas on what i should try next? Thanks in advance. Pavlos.

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• Why eclipse is hanging while in debug mode ?

  - by Pratik

  We are developing our web application using JAVA GWT framework. We are using Eclipse Indigo as a development GUI. We are facing problems while debugging the JAVA gwt application in eclipse. Most of the time, Eclipse hangs while debugging. We tried to increase the memory buffer size in eclipse but no luck. We had tried to run the eclipse in various environment like Windows, Fedora 16, Cent OS. but some how not getting positive results. Can anyone help me out to decide which OS, and eclipse or version should we have to use so can able to resolve the hanging issue? Thanks in advance. Pratik

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• Linux for web Development [closed]

  - by Mr.TAMER

  I usually used windows for developing desktop applications, but recently I've almost abandoned desktop apps and have been doing web development so much. I'm using many web technologies and languages, especially Ruby on Rails, and I'm facing too many problems using windows. Besides, I personally want to move to Linux. So, what's the most helpful and comfortable Linux distribution for web development? I have a short but handy experience using Ubuntu desktop, so I'm familiar with the generics of Linux (like -as a simple example- using the command line), and I don't have any problem in getting used to any distribution (I know I may face some difficulties, but again I have no problem), I only want the best one for web development (especially rails!!). If the question doesn't belong to this site, I'll be glad to migrate it to the appropriate one.

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• Matrix rotation of a rectangle to "face" a given point in 2d

  - by justin.m.chase

  Suppose you have a rectangle centered at point (0, 0) and now I want to rotate it such that it is facing the point (100, 100), how would I do this purely with matrix math? To give some more specifics I am using javascript and canvas and I may have something like this: var position = {x : 0, y: 0 }; var destination = { x : 100, y: 100 }; var transform = Matrix.identity(); this.update = function(state) { // update transform to rotate to face destination }; this.draw = function(ctx) { ctx.save(); ctx.transform(transform); // a helper that just calls setTransform() ctx.beginPath(); ctx.rect(-5, -5, 10, 10); ctx.fillStyle = 'Blue'; ctx.fill(); ctx.lineWidth = 2; ctx.stroke(); ctx.restore(); } Feel free to assume any matrix function you need is available.

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• Rotate sprite to face 3D camera

  - by omikun

  I am trying to rotate a sprite so it is always facing a 3D camera. shaders->setUniform("camera", gCamera.matrix()); glm::mat4 scale = glm::scale(glm::mat4(), glm::vec3(5e5, 5e5, 5e5)); glm::vec3 look = gCamera.position(); glm::vec3 right = glm::cross(gCamera.up(), look); glm::vec3 up = glm::cross(look, right); glm::mat4 newTransform = glm::lookAt(glm::vec3(0), gCamera.position(), up) * scale; shaders->setUniform("model", newTransform); In the vertex shader: gl_Position = camera * model * vec4(vert, 1); The object will track the camera if I move the camera up or down, but if I rotate the camera around it, it will rotate in the other direction so I end up seeing its front twice and its back twice as I rotate around it 360. What am I doing wrong?

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• How to send credentials to linkedIn website and get oauth_verifier without signing in again [closed]

  - by akash kumar

  I am facing a problem sending credentials to another website so that I can login the user (automatically, not clicked on sign in here) and get an oauth_verifier value. I want to send the email address and the password through a form (submit button) from my website (e.g. a Liferay portal) to another website (e.g. LinkedIn), so that it automatically returns an oauth_verifier to my website. That means I don't want the user of my website to submit his email and password to LinkedIn again. My goal is to take the email and password of the user in my website and show the user his LinkedIn connection, message, job posting (again, in my website, not LinkedIn). I dont want the user redirected to the LinkedIn website to sign in there and then come back to my website. I have taken a consumer key and a secret key from LinkedIn for my web aplication. I am using the LinkedIn API and getting oauth_verifier for access token but in order to login, I have to take user to LinkedIn to sign in, while I want it to happen in the backend.

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• Web Service - SOAP

  - by seth

  My experience with web services is slim and I'm trying to understand this a little bit more. I have done for instance a web service using visual studio. In order to use it, I add a web service reference in my projects and this creates a proxy and the use is pretty simple. Does this use SOAP? I ask this because i will be now facing a web service that i must communicate using SOAP with attachements and i'm trying to understand the concept behind this and the difference to what i have done so far. Will the proxy still be viable or do i need to create the XML by hand and post it to the web service? This concepts still confuse and so any help is appreciated. EDIT: I'm not developing the service, i will be just using it.

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• Help making TP-Link Wireless USB Adapter TL-WN723N work consistently

  - by Savvas Katseas

  I've only recently made the jump to Ubuntu, using 11.10/64 as my only desktop OS. Everything seems to be working fine, except my USB Wireless adapter, TP-Link's TL-WN723N which is randomly connecting and disconnecting. The connection time appears to be random, too: I've experienced hours of connectivity and lots of connections/disconnections. I've tried searching for a solution, but what I find doesn't concern this specific USB adapter. I'd like some help identifying the problem... I've also recently switched to using a D-Link router as a wireless hub, which creates its own wireless/n network. Unfortunately this didn't solve my problems, as the new n network can be joined, but there's no connectivity to the internet. I know that's not much info to help others solve my problem, so please let me know of what else I can provide to make this a better question -- and possibly help others facing similar trouble. lsusb reports that I'm using Realtek Semiconductor Corp. RTL8188SU 802.11n WLAN Adapter

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• Bloom shader makes it impossible to render black?

  - by Mathias Lykkegaard Lorenzen

  I am playing around with the bloom shader from the XNA sample page, to do some glow shading. I am rendering primitive vector-ish squares of linelists/linestrips, on a background. However, I am facing a few problems. With a black background and white squares, I can actually see the squares. However, with a white background and black squares, I can't see them at all. Why is this happening, and is there any way of me fixing it? Can I modify my bloom shader to also "glow" dark elements, if that's what is causing it?

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• SQLAuthority News – Great Time Spent at Great Indian Developers Summit 2014

  - by Pinal Dave

  The Great Indian Developer Conference (GIDS) is one of the most popular annual event held in Bangalore. This year GIDS is scheduled on April 22, 25. I will be presented total four sessions at this event and each session is very different from each other. Here are the details of four of my sessions, which I presented there. Pluralsight Shades This event was a great event and I had fantastic fun presenting a technology over here. I was indeed very excited that along with me, I had many of my friends presenting at the event as well. I want to thank all of you to attend my session and having standing room every single time. I have already sent resources in my newsletter. You can sign up for the newsletter over here. Indexing is an Art I was amazed with the crowd present in the sessions at GIDS. There was a great interest in the subject of SQL Server and Performance Tuning. Audience at GIDS I believe event like such provides a great platform to meet and share knowledge. Pinal at Pluralsight Booth Here are the abstract of the sessions which I had presented. They were recorded so at some point in time they will be available, but if you want the content of all the courses immediately, I suggest you check out my video courses on the same subject on Pluralsight. Indexes, the Unsung Hero Relevant Pluralsight Course Slow Running Queries are the most common problem that developers face while working with SQL Server. While it is easy to blame SQL Server for unsatisfactory performance, the issue often persists with the way queries have been written, and how Indexes has been set up. The session will focus on the ways of identifying problems that slow down SQL Server, and Indexing tricks to fix them. Developers will walk out with scripts and knowledge that can be applied to their servers, immediately post the session. Indexes are the most crucial objects of the database. They are the first stop for any DBA and Developer when it is about performance tuning. There is a good side as well evil side to indexes. To master the art of performance tuning one has to understand the fundamentals of indexes and the best practices associated with the same. We will cover various aspects of Indexing such as Duplicate Index, Redundant Index, Missing Index as well as best practices around Indexes. SQL Server Performance Troubleshooting: Ancient Problems and Modern Solutions Relevant Pluralsight Course Many believe Performance Tuning and Troubleshooting is an art which has been lost in time. However, truth is that art has evolved with time and there are more tools and techniques to overcome ancient troublesome scenarios. There are three major resources that when bottlenecked creates performance problems: CPU, IO, and Memory. In this session we will focus on High CPU scenarios detection and their resolutions. If time permits we will cover other performance related tips and tricks. At the end of this session, attendees will have a clear idea as well as action items regarding what to do when facing any of the above resource intensive scenarios. Developers will walk out with scripts and knowledge that can be applied to their servers, immediately post the session. To master the art of performance tuning one has to understand the fundamentals of performance, tuning and the best practices associated with the same. We will discuss about performance tuning in this session with the help of Demos. Pinal Dave at GIDS MySQL Performance Tuning – Unexplored Territory Relevant Pluralsight Course Performance is one of the most essential aspects of any application. Everyone wants their server to perform optimally and at the best efficiency. However, not many people talk about MySQL and Performance Tuning as it is an extremely unexplored territory. In this session, we will talk about how we can tune MySQL Performance. We will also try and cover other performance related tips and tricks. At the end of this session, attendees will not only have a clear idea, but also carry home action items regarding what to do when facing any of the above resource intensive scenarios. Developers will walk out with scripts and knowledge that can be applied to their servers, immediately post the session. To master the art of performance tuning one has to understand the fundamentals of performance, tuning and the best practices associated with the same. You will also witness some impressive performance tuning demos in this session. Hidden Secrets and Gems of SQL Server We Bet You Never Knew Relevant Pluralsight Course SQL Trio Session! It really amazes us every time when someone says SQL Server is an easy tool to handle and work with. Microsoft has done an amazing work in making working with complex relational database a breeze for developers and administrators alike. Though it looks like child’s play for some, the realities are far away from this notion. The basics and fundamentals though are simple and uniform across databases, the behavior and understanding the nuts and bolts of SQL Server is something we need to master over a period of time. With a collective experience of more than 30+ years amongst the speakers on databases, we will try to take a unique tour of various aspects of SQL Server and bring to you life lessons learnt from working with SQL Server. We will share some of the trade secrets of performance, configuration, new features, tuning, behaviors, T-SQL practices, common pitfalls, productivity tips on tools and more. This is a highly demo filled session for practical use if you are a SQL Server developer or an Administrator. The speakers will be able to stump you and give you answers on almost everything inside the Relational database called SQL Server. I personally attended the session of Vinod Kumar, Balmukund Lakhani, Abhishek Kumar and my favorite Govind Kanshi. Summary If you have missed this event here are two action items 1) Sign up for Resource Newsletter 2) Watch my video courses on Pluralsight Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: MySQL, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority Author Visit, SQLAuthority News, T SQL Tagged: GIDS

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• Webinar: Meeting Customer Expectations in the New Age of Retail

  - by Sanjeev Sharma

  Webcast Date: Thursday, November 8, 2012 Time: 10am PT/ 1pm ET The retail market has expanded into the online, mobile, and social worlds. But the key to success hasn’t changed since the days of traditional, brick-and-mortar business. It’s still about service. A successful retailer today in omni-channel customer engagement must be able to deliver quality service that meets customer expectations. For many retailers, Oracle Web commerce applications help them achieve that success, allowing them to market, interact, and transact across multiple channels in a predictable, consistent, and personalized manner. Join us for this Webcast, and learn what Oracle applications can do for your business. In this session, we will discuss: The significance and dimensions of modern omni-channel customer experience The Oracle Commerce platform Real-world examples of business value derived by running customer-facing applications on Oracle Engineered Systems Register today Speakers: Sanjeev Sharma Principal Product Director, Oracle Exalogic, Oracle Kelly Goetsch Senior Principal Product Manager, Oracle Commerce, Oracle Dan Conway Senior Product Manager, Oracle Retail, Oracle

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• Why does my Ubuntu freeze in the middle of something with a blank screen?

  - by mohamed

  I am facing a serious problem as my Dell Optiplex 745 loaded with Ubuntu 12.04 32bit freezes with a blank screen no mouse cursor no keyboard activity in many occasions. Sometimes when I open firefox, or software center, I really can't tell what the main problem is, but what i am certain about is it i have to do a hard reset to reboot. I tried to use a live-cd to boot but it did the same, tried the recovery console but couldn't find a way to fix from there (I am a new user) suspected a hardware problem but windows runs flawlessly so I believe its something related to ubuntu. Specs: Intel Celeron D 3.06 GHZ 3.0 GB ram Intel built in graphics Q965 1 TB HDD Bios Phoenex 2.6.4 Please help I really love ubuntu and I don't want to go back to windows!

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• rich snippets ignored by google [closed]

  - by Thoir Fáidh

  Possible Duplicate: Why would Google Rich Snippets work for one site author but not another? I'm facing one problem here. I made rich snippets - microdata for the website but google ignores all of them. Here is how it looks like in testing tool . It doesn't detect any errors. I've read that google ignores the microdata in hidden fields. Unfortunately this is partially the case since I use jquery to interact with the contect, but nevertheless it is not hidden everywhere and I believe that google should recognize at least the microdata visible to the user permanently. Am I missing something here? It is now about 3 weeks since I updated website with rich snippets.

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• Problem using glm::lookat

  - by omikun

  I am trying to rotate a sprite so it is always facing a 3D camera. Object GLfloat vertexData[] = { // X Y Z U V 0.0f, 0.8f, 0.0f, 0.5f, 1.0f, -0.8f,-0.8f, 0.0f, 0.0f, 0.0f, 0.8f,-0.8f, 0.0f, 1.0f, 0.0f, }; Per frame transform glm::mat4 newTransform = glm::lookAt(glm::vec3(0), gCamera.position(), gCamera.up()); shaders->setUniform("camera", gCamera.matrix()); shaders->setUniform("model", newTransform); In the vertex shader: gl_Position = camera * model * vec4(vert, 1); The object will track the camera if I move the camera up or down, but if I move the camera left/right (spin the camera around the object's y axis), it will rotate in the other direction so I end up seeing its front twice and its back twice as I rotate around it 360. If I use -gCamera.up() instead, it would track the camera side to side, but spin the opposite direction when I move the camera up/down. What am I doing wrong?

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• Transparency in XNA-4 primitives

  - by Shashwat

  I'm using XNA 4 with Visual Studio 2010. I'm trying to create a simple 3D world with walls and doors in which the user to free to roam around. A wall is just a rectangle which is currently being rendered with four vertices using triangle strips. But to create a door, I'd have to split it into three rectangles as shown in the figure. Four quadrilaterals if I want to have the following door-style It will become more complex to have multiple doors on the same wall or if I have windows. Is there any shorter way to handle this? I am looking for something that will just make the wall transparent wherever I want. I found a solution but facing a problem here

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• Thunar not showing thumbnails in Openbox

  - by RanRag

  I am using openbox 3.5 and my file manager of choice is Thunar but the problem I am facing is thunar not showing thumbnails for folder,video files etc. My Thunar: You can see in the above image that thunar is not showing thumbnails for folders, files but it is showing for pdf and similar is the case for video files no thumbnails. So, what is wrong here am I missing some basic thunar config files. ranrag@ranrag:~$ echo $DESKTOP_SESSION openbox I looked into some forums and they mentioned that there is some dependency of tumbler with thunar but I have latest version of tumbler installed on my system. PS: I already tried thunar preferences but still no luck.

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• Pre order Nokia Lumia 900 from AT&T for $99.99 and Walmart for $49.99

  - by Gopinath

  Nokia Lumia 900, the flagship Windows Phone OS smartphone from Nokia is available for pre-order from AT&T Stores. With a two year contract, you can grab the phone by paying $99.99 online and they are expected to ship a day or two earlier than their official launch in AT&T stores across US. Walmart in an aggressive move, is selling Nokia Lumia 900 for just $49.99 with a two year contract. So you save $50 more. Earlier in January of this year, Nokia unveiled its plans of Lumia 900 launch exclusively for American market. Nokia Lumia 900 features a 4.3 inch Clear Black display, sporting a resolution of 800 x 480 pixels, 1.4 GHz Snapdragon processor, Windows Phone 7.5 (Mango) OS, 8 megapixel rear camera with f2.2/28mm Carl Zeiss lens and dual LED flash, auto-focus and HD (720p) video recording, 1 megapixel front-facing camera for video calls, 512 MB RAM, 16 GB internal memory, 14.5 GB user memory and more. Pre-order Nokia Lumia 900 from AT&T and Walmart

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• Keyboard shortcuts get randomly reset

  - by Andrei

  I'm facing a rather weird issue in the past few days after doing a clean install of Ubuntu Oneiric (w/ gnome-shell) on my recently-bought Asus U36SD. I set up my keyboard shortcuts using System Settings Keyboard Shortcuts, and some of them get randomly reset. Most of my shortcuts include the win key (otherwise listed in the keyboard shortcuts as Mod4), but those containing only Mod4 + get reset every two-three reboots. For instance, Mod4 + T (for terminal), gets reset to the standard Ctrl + Alt + T, while Shift + Mod4 + W (for browser) doesn't (I've set up the latter with the Shift key, because it seems that Mod4 + W didn't get intercepted at all. Something similar goes for Mod4 + E for gedit, which only worked once or twice). I have no idea if this is a Ubuntu specific issue, or it's related to gnome-shell or even with my current hardware. Has this happened to any of you? If so, did you manage to fix it?

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• SQL SERVER – Enable PowerPivot Plugin in Excel

  - by pinaldave

  Recently I had interesting experience at one conference. My PowerPivot plugin got disabled and I had no clue how to enable the same. After while, I figured out how to enable the same. Once I got back from the event, I searched online and realize that many other people online are facing the same problem. Here is how I solved the problem. When I started Excel it did not load PowerPivot plugin. I found in option>> Add in the plug in to be disabled. I enabled the plugin and it worked very well. Let us see that with images. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: PowerPivot

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