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  • sql "Group By" and "Having"

    - by Hans Rudel
    im trying to work through some questions and im not sure how to do the following Q:Find the hard drive sizes that are equal among two or more PCs. its q15 on this site http://www.sql-ex.ru/learn_exercises.php#answer_ref The database scheme consists of four tables: Product(maker, model, type) PC(code, model, speed, ram, hd, cd, price) Laptop(code, model, speed, ram, hd, screen, price) Printer(code, model, color, type, price) any pointers would be appreciated.

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  • Access XAMPP Localhost from Internet

    - by coool
    Hi, I have XAMPP installed in local laptop. And I have a almost static ip. I would like to give the ip to other to run it from thier browser. I configured apache httpd-vhosts.conf to listen my ip address:80 and added the virtual server with the ip address and domain root to local httdocs directory and the servername as localhost. Apache doesn't start. what should I do to access my website from external computer. THnks

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  • PHP not talking to MySQL

    - by KodeSeeker
    Im trying to set up a AMP installation on my windows 8 laptop. However, Im not being able to get PHP to talk to MySQL. When I start apache server, the following error log is generated PHP Warning: PHP Startup: Unable to load dynamic library 'ext\\php_mysql.dll' - %1 is not a valid Win32 application.\r\n in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library 'ext\\php_mysqli.dll' - %1 is not a valid Win32 application.\r\n in Unknown on line .. Any idea why this could be happening?

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  • Tracking down data load performance issues in SSIS package

    - by SteveC
    Are there any ways to determine what the differences in databases are that affect a SSIS package load performance ? I've got a package which loads and does various bits of processing on ~100k records on my laptop database in about 5 minutes Try the same package and same data on the test server, which is a reasonable box in both CPU and memory, and it's still running ... about 1 hour so far :-( Checked the package with a small set of data, and it ran through Ok

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  • Rails route hanging

    - by Bob
    I'm trying to get someone else's app up and running on my development laptop but I ran into a routing issue and I'm not sure how to debug it. For a particular controller/action, it just hangs and doesn't time out and there is no error message in the development log. Does anyone know how I can debug this? Thanks.

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  • How to get the measures of an object from far away?

    - by Luis Armando
    I am working on an App that intends to give an accurate measure of any object (building, desk, chair, people, etc.) Using the camera (either phone's or laptop) but I'm unsure as to how to do this without using a lot of resources, would someone mind giving me some options? I'm looking for a lightweight one that can be quickly processed by the computer/phone to give back the measures.

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  • Problem in sort by date in multi array?

    - by AB
    I want to sort array A based on values in Array B actually in Array A I have topics like keyboard Laptop Desktop mouse and in Array B i have dates associated with each value in Array A how i can achieve this....I was thinking of using multi array but i m not sure if there is any default method of sorting multi array ...or if there is any other method to achieve this?

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  • disable horizontal scrolling by finger swipe

    - by codelove
    This may just be a mac issue, but I have a page with an element which is twice the size of the page and is moved into view dynamically. in my css I have overflow-x:hidden set so that this element won't create an ugly bottom scollbar, the problem is on my laptop (and probably on ipads and other devices) I can just swipe with two fingers to scroll and view this content. This breaks the whole layout and looks really bad, and I am looking for a way to completely disable this horizontal scrolling action with javascript or css. Thank you

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  • Pretty Pixel-level Picture Painting, Programatically

    - by dreeves
    My mac laptop has 1,024,000 pixels. What's the simplest way to turn my display completely black and go nuts with writing little programs to twiddle pixels to my heart's delight? To make it more concrete, say I wanted to implement the Chaos Game to draw a Sierpinski triangle, at the pixel level, with nothing else on the screen. What are ways to do that?

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  • how can i get the file permission of a directory with java

    - by user571652
    i try to check the permission granted to a directory in linux, i mean i have a directory with permission 755 berty@berty-laptop:~$ ls -l / |grep directory drwxr-xr-x 3 root root 4096 2011-01-10 12:33 directory how can i read that permission with java? I've tried using FilePermission but though i have a directory with all the permissions (777) the FilePermission class always returns an exception java.security.AccessControlException: Access denied (java.io.FilePermission /home/directory read) at java.security.AccessController.checkPermission(AccessController.java:103) at com.snippets.Check4DirectoryPermission.checker(Check4DirectoryPermission.java:50) at com.snippets.Check4DirectoryPermission.main(Check4DirectoryPermission.java:70) is there another way to do this?

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  • How do I integrate VisualSVN into Visual Studio 2010?

    - by Brandon
    I have an existing setup of Visual Studio 2008 with VisualSVN integrated into the IDE. I have installed and am testing out Visual Studio 2010. How do I integrate VisualSVN into 2010? Can I import my existing settings? I was issued a laptop with all of this setup for me but now we're gonna upgrade to 2010 soon.

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  • what is the fastest-best PHP IDE on windows?

    - by vegatron
    hi I've tried a few php IDEs , but still searching for the FASTEST one all Java based IDEs are too slow, I have 2 computers to work, my home pc which is too fast, and my laptop witch is good , but cant handle a heave software. and I have to work on them both, so I'm looking for the best free ide which is fast I'm not talking about text-editors , because I already have np++ and its great, but looking for extra features to help me save time.. any tips?

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  • Is mono fast enough for Mac OS X?

    - by prosseek
    I have to use .NET/C# for the next company project. As I've developed my project on Mac, I looked into the mono for development environment/tool. Is the mono for Mac OS X is fast enough? I mean, what about the performance in running the assembly compared to running the same code on .NET under windows machine? Do I have to buy PC laptop for developing C#/.NET in practical sense?

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  • Allocation of IP Address in Ad hoc systems

    - by Kasturi
    Me and my friends play Age of Empires every weekend and create an Ad-hoc network each time before playing. But each time we all get the SAME IP Address even if a new ad-hoc network is created. Is this something to do with the Game's algorithm or does the laptop remember our previous IP Address. EDIT: What is the algorithm that is used to distribute the IP Addresses? If the algorithm uses random function how come same IP addresses are being allocated.

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  • NVIDIA graphics driver in Ubuntu 12.04

    - by user924501
    So my overall goal is that I want to be able to code with CUDA enabled applications. However, upon many days of searching, using installation walkthroughs, and reinstalling countless times after driver failure... I'm now here as a last resort. I cannot get Ubuntu 12.04 LTS to install the NVIDIA 295.59 driver for my GeForce GT 540M NVIDIA graphics card. My main system specs is as follows... (I believe having the Intel processor may be the problem) DELL Laptop XPS L502X Intel® Core™ i7-2620M CPU @ 2.70GHz × 4 Intel Integrated Graphics 64 bit NVIDIA GeForce GT 540M Ubuntu 12.04 LTS All other specs are irrelevant unless I forgot something? Methods Tried: aptitude install nvidia-current (all packages) Results: Nothing really happened. Nothing in the additional drivers menu appeared, nor was the NVIDIA X Server settings application allowing access because it thought there was no NVIDIA X Server installed. Downloaded driver from nvidia.com. Set nomodeset in the grub boot menu through /boot/grub/grub.cfg Went to console and turned off lightdm. Installed the driver, but it said the pre-install failed? (mean anything?) Started up lightdm again. Results: NVIDIA X Server settings still didn't notice it. Even tried to do nvidia-xconfig multiple times. I also went into the config file to make sure the driver setting said "nvidia". aptitude install nvidia-173 (all packages) Results: Couldn't find the xorg-video-abi-10 virtual package. It was nowhere to be found and the ubuntu forums everywhere had no answers. Lots of people were having this problem. This is easily done in windows, simply download the driver and debug in visual studio with no problems at all. I'd like clear step-by-step instructions on how I should go about this. I'm relatively new to linux but I can find my way around pretty well so you aren't talking to a straight-up beginner. Also, if you think another thread may have the answer please post because I was having a hard time looking for my specific type of problem. TL;DR I want to have access to my GPU so I can code with CUDA while in Ubuntu 12.04 on my 64 bit laptop that also has Intel integrated graphics on the processor. Solution: sudo apt-add-repository ppa:ubuntu-x-swat/x-updates && sudo apt-get update && sudo apt-get upgrade && sudo apt-get install nvidia-current

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  • Web developement learning env

    - by David Oneill
    I am currently learning Ruby on Rails. I currently do all my development on my laptop. However, I know in all "real world" situations, I will be connecting to a dedicated server that will hold the site. So here is my question: what are the pros and cons of developing on the machine I use vs running the website on a separate server?

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