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  • 3 tips for SQL Azure connection perfection

    - by Richard Mitchell
    One of my main annoyances when dealing with SQL Azure is of course the occasional connection problems that communicating to a cloud database entails. If you're used to programming against a locally hosted SQL Server box this can be quite a change and annoying like you wouldn't believe. So after hitting the problem again in http://cloudservices.red-gate.com  I thought I'd write a little post to remind myself how I've got it working, I don't say it's right but at least "it works on my machine" Tip...(read more)

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  • Writing a Master's Thesis on evaluating visual scripting systems

    - by user1107412
    I am thinking to write my Master's thesis around theorizing, and then implementing a PlayMaker or Kismet-like (building game logic by visually arranging FSMs) tool in Unity. The only thing I am still concerned about is the actual research question that I should pose. I was kinda hoping that the more experienced game designers out there might know. Update: What about reducing the use of visual programming to graphically designing FSM-Action-Transition flows, which can then be attached to game entities (very much like http://playmaker.com does it)?

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  • C# 5: At last, async without the pain

    - by Alex.Davies
    For me, the best feature in Visual Studio 11 is the async and await keywords that come with C# 5. I am a big fan of asynchronous programming: it frees up resources, in particular the thread that a piece of code needs to run in. That lets that thread run something else, while waiting for your long-running operation to complete. That's really important if that thread is the UI thread, or if it's holding a lock because it accesses some data structure. Before C# 5, I think I was about the only person in the world who really cared about asynchronous programming. The trouble was that you had to go to extreme lengths to make code asynchronous. I would forever be writing methods that, instead of returning a value, accepted an extra argument that is a "continuation". Then, when calling the method, I'd have to pass a lambda in to it, which contained all the stuff that needed to happen after the method finished. Here is a real snippet of code that is in .NET Demon: m_BuildControl.FilterEnabledForBuilding(     projects,     enabledProjects = m_OutOfDateProjectFinder.FilterNeedsBuilding(         enabledProjects,         newDirtyProjects =         {             // Mark any currently broken projects as dirty             newDirtyProjects.UnionWith(m_BrokenProjects);             // Copy what we found into the set of dirty things             m_DirtyProjects = newDirtyProjects;             RunSomeBuilds();         })); It's just obtuse. Who puts a lambda inside a lambda like that? Well, me obviously. But surely enabledProjects should just be the return value of FilterEnabledForBuilding? And newDirtyProjects should just be the return value of FilterNeedsBuilding? C# 5 async/await lets you write asynchronous code without it looking so stupid. Here's what I plan to change that code to, once we upgrade to VS 11: var enabledProjects = await m_BuildControl.FilterEnabledForBuilding(projects); var newDirtyProjects = await m_OutOfDateProjectFinder.FilterNeedsBuilding(enabledProjects); // Mark any currently broken projects as dirty newDirtyProjects.UnionWith(m_BrokenProjects); // Copy what we found into the set of dirty things m_DirtyProjects = newDirtyProjects; RunSomeBuilds(); Much easier to read! But how is this the same code? If we were on the UI thread, doesn't the UI thread have to block while FilterEnabledForBuilding runs? No, it doesn't, and that's the magic of the await keyword! It cuts your method up into its constituent pieces, much like I did manually with lambdas before. When you run it, only the piece up to the first await actually runs. The rest is passed to FilterEnabledForBuilding as a continuation, which will get called back whenever that method is finished. In the meantime, our thread returns, and can go back to making the UI responsive, or whatever else threads do in their spare time. This is actually a massive simplification, and if you're interested in all the gory details, and speed hacks that the await keyword actually does for you, I recommend Jon Skeet's blog posts about it.

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  • Does the method of adjustment matter, or just the final calibration?

    - by Steve
    A company produces software (and hardware) that is used to both perform automatic adjustments on electronic test equipment as well as perform calibrations of the same equipment. The results of the calibrations are put onto a certificate of calibration that is sent to the customer along with the equipment. This calibration certificate states various conditions of the calibration, such as what hardware (models/serial numbers) and software (version) was used to perform the calibration, as well as things like environmental conditions, etc. Making the assumption that the software used to produce the data (and listed on the calibration certificate) used on the certificate of calibration must have gone through a "test/release" process and must be considered "released" software - does this also mean that the software used for adjustment must also be released? I believe that the method (software/environmental conditions/etc) used or present during adjustment doesn't matter, all that really matters is the end result of the calibration, the conditions present during the calibration, and whether or not the equipment was within the specifications. The real question I'm hoping to get answered: Is there a reputable source (e.g. NIST or somewhere similar) that addresses this question? (I have searched...) The thinking is that during high volume production runs, the "unreleased" system can be used to perform adjustments, as long as a released system is used to perform the calibrations, since the time required to perform the adjustments is much longer than the calibration. This unreleased system will eventually become released for use, but currently is not. Also, please not that there is a distinction between "adjustment" and "calibration". The definition from BIPM International vocabulary of metrology, 2.39: Operation that, under specified conditions, in a first step, establishes a relation between the quantity values with measurement uncertainties provided by measurement standards and corresponding indications with associated measurement uncertainties (of the calibrated instrument or secondary standard) and, in a second step, uses this information to establish a relation for obtaining a measurement result from an indication. Followed by NOTE 2 (emphasis in original text): Calibration should not be confused with adjustment of a measuring system, often mistakenly called "self-calibration", nor with verification of calibration As a side note, I'm not sure why this got down voted. It's regarding software and it's use before and after release for use. I believe there is a best practice that can be applied and this is (hopefully) not primarily opinion based.

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  • what is the best age for programmer to hire [on hold]

    - by Mohamed Ahmed
    I'm graduated from Information systems institute since 2004 and I worked as a ICDL Instructor , but I know some SQL Server good and Database Design , now I'm in 30 age , and I want to start study computer programming and get MCSA SQL Server and MCSE certificates , but I have feel I'm old to start and the companies will not accept me for that reason and also because I don't have any experience yet in the field , I will start like a fresh graduated in 21 or 22 age , please help me what is the best age for programmer for accepted , and the age and late start will be a big obstacle for me or not

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  • Microphone crackling in Ubuntu 12.04

    - by Tomas
    I am not very experienced in linux and have this problem with microphone which works fine on Windows. Microphone is external one and when listening to recorded sound (both Sound Recorder and Skype Echo Test) you can hear crackling noise. I fixed output crackling by replacing load-module module-hal-detect with load-module module-hal-detect tsched=0 in /etc/pulse/default.pa but I have no idea how to fix input. Hardware info: Card: HDA ATI SB Chip: Realtek ALC272X Thanks for help!

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  • Create SQL Server Analysis Services Partitions using AMO

    When you have SSAS cubes with millions of rows of data, it is very helpful to create partitions. If you have a few cubes you could probably do this manually, but if there are many or if you want to automate this process you should look for smarter solutions such as programming the creation of partitions dynamically. NEW! Never waste another weekend deployingDeploy SQL Server changes and ASP .NET applications fast, frequently, and without fuss, using Deployment Manager, the new tool from Red Gate. Try it now.

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  • Oracle OpenWorld 2012 konferencia 9 nap múlva kezdodik, 09.30.-10.04.

    - by user645740
    San Franciscoban nemsokára elkezdodik a 2012. évi Oracle OpenWorld konferencia:http://www.oracle.com/openworld/. Rengeteg érdekes keynote, eloadás, demó, stb található a programban. Oracle OpenWorld keynote eloadások: http://www.oracle.com/openworld/keynotes/ Az Oracle OpenWorld-ön gyakran fontos bejelentések is elhangzanak, kíváncsian várom az idei újdonságokat! Továbbra is kulcsszavak: Cloud - felho Hardware and Software, Engineered to Work Together Engineered Systems A komplexitás csökkentése Business Analytics (üzleti intelligencia és barátai nagyobb keretben) Fusion Applications

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  • The Internet Key Wave MW833UP is not recognized in Ubuntu

    - by gio900
    I can't use my Onda MW833UP... :( Any advice? Here is something that someone else may understand: ~$: lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 11.10 Release: 11.10 Codename: oneiric ~$: lsusb Bus 001 Device 005: ID 1ee8:0012 ~$: dmesg [ 22.709475] cdc_acm 1-1:1.0: ttyACM0: USB ACM device [ 22.714856] usbcore: registered new interface driver cdc_acm [ 22.714866] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters [ 23.520490] ieee80211 phy0: wl_ops_bss_info_changed: arp filtering: enabled true, count 1 (implement) [ 24.244530] usbcore: registered new interface driver usbserial [ 24.244575] USB Serial support registered for generic [ 24.244673] usbcore: registered new interface driver usbserial_generic [ 24.244681] usbserial: USB Serial Driver core [ 24.265879] USB Serial support registered for GSM modem (1-port) [ 24.285680] usbcore: registered new interface driver option [ 24.285691] option: v0.7.2:USB Driver for GSM modems [ 24.425878] EXT4-fs (sda9): re-mounted. Opts: errors=remount-ro,commit=600 [ 24.736540] EXT4-fs (sda8): re-mounted. Opts: commit=600 [ 35.705796] Easy slow down manager: checking for SABI support. [ 35.706002] Easy slow down manager: SABI is supported (f5189) [ 36.060099] usbcore: deregistering interface driver uvcvideo [ 139.508061] CE: hpet increased min_delta_ns to 20113 nsec [ 6798.378917] usb 1-1: USB disconnect, device number 5 [ 6809.108232] usb 1-1: new high speed USB device number 6 using ehci_hcd [ 6809.242692] scsi5 : usb-storage 1-1:1.0 [ 6810.241257] scsi 5:0:0:0: CD-ROM Onda Datacard CD-ROM 0001 PQ: 0 ANSI: 0 [ 6810.241841] scsi 5:0:0:1: Direct-Access Onda Storage 0001 PQ: 0 ANSI: 0 [ 6810.271410] sr0: scsi3-mmc drive: 0x/0x caddy [ 6810.272099] sr 5:0:0:0: Attached scsi CD-ROM sr0 [ 6810.272852] sr 5:0:0:0: Attached scsi generic sg1 type 5 [ 6810.279954] sd 5:0:0:1: [sdb] Attached SCSI removable disk [ 6810.281210] sd 5:0:0:1: Attached scsi generic sg2 type 0 [ 6810.380591] sr0: CDROM (ioctl) error, command: Xpwrite, Read disk info 51 00 00 00 00 00 00 00 02 00 [ 6810.380617] sr: Sense Key : Hardware Error [current] [ 6810.380625] sr: Add. Sense: No additional sense information [ 6810.613937] sr0: CDROM (ioctl) error, command: Xpwrite, Read disk info 51 00 00 00 00 00 00 00 02 00 [ 6810.613972] sr: Sense Key : Hardware Error [current] [ 6810.613984] sr: Add. Sense: No additional sense information [ 6810.673716] usb 1-1: USB disconnect, device number 6 [ 6815.572142] usb 1-1: new high speed USB device number 7 using ehci_hcd [ 6815.706828] cdc_acm 1-1:1.0: ttyACM0: USB ACM device The last 3 lines are where I inserted the Internet key, then reconnected it. usb-device T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 7 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=1ee8 ProdID=0012 Rev=00.01 S: Manufacturer=Onda S: Product=MW833UP S: SerialNumber=9230B35D870F9CB7AE684EACC5C12BE5EC33B26E C: #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=02 Prot=01 Driver=cdc_acm I: If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm Then there is /dev/ttyACM0. When the key is connected to the USB port, everything that will meant...

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  • Can someone explain how a GUI works and when I should start using one?

    - by David
    I've been learning C++ for about a month now, and before I go any further, I'd like to clear up this tedious question I keep on having. I know what a GUI is, but I don't really know how it works, and maybe examples of popular ones...? Although I know command line programming is the bare fundamentals, I think it'd be fun messing around with a GUI. Although I have around 3 million other questions, I'll save them :D

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  • Cell Transitions in Excel 2013 Preview–Fixed

    - by simonsabin
    If you’ve downloaded Excel 2013 and been working with it you may have noticed the new cell transition feature. Not sure why they put it in, it feels a bit like the aero interface which I understand has been dropped in windows 8. What you may have found is that the transition is buggy, Excel hangs, of the transition is jumpy. Well I found the fix on http://answers.microsoft.com/en-us/office/forum/office_home-excel/hardware-acceleration-problem-with-excel-2013/894da202-48c0-4442-a371-955587c1b7c0 For...(read more)

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  • What is the best toolkit for writing long technical texts?

    - by thr
    I'm looking for a toolkit in the form of one or a couple of applications that can be used to write long technical texts (such as an introduction to a programming language). What applications (or combination of) are suitable for this? How should said applications be setup (for example how would one setup MS Word to best fit writing a technical text)? How do you deal with source code, syntax coloring and formatting? In the case of it being several applications, how do you interact between them?

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  • Setting MTU on Exalogic

    - by csoto
    For many reasons, a system administrator may want to change the MTU settings of a server. But in a system like Exalogic which contains lots of interconnected nodes and other various components, it's important to understand how this applies to the different networks. For example, when bringing up bonding of InfiniBand an error like the following may be thrown: Bringing up interface bond1: SIOCSIFMTU: Invalid argument Both scripts ifcfg-ib0 and ifcfg-ib1 (from the /etc/sysconfig/network-scripts/ direectory) have MTU set to 65500, which is a valid MTU value only if all IPoIB slaves operate in connected mode and are configured with the same value, so the line below must be added to both network scripts and then restart the network: CONNECTED_MODE=yes By the way, an error of the form “SIOCSIFMTU: Invalid argument” indicates that the requested MTU was rejected by the kernel. Typically this would be due to it exceeding the maximum value supported by the interface hardware. In that case you must either reduce the MTU to a value that is supported or obtain more capable hardware. This problem has been seen when trying to modify the MTU using the ifconfig command, like the output of the example below: [root@elxxcnxx ~]# ifconfig ib1 mtu 65520 SIOCSIFMTU: Invalid argument It's important to insist that in most cases the nodes must be rebooted after the MTU size has been changed. Although in some circumstances it may work without a reboot, it is not how it is typically documented. Now, in order to achieve a reduced memory consumption and improve performance for network traffic received on IPoIB related interfaces, it is recommend to reduce the MTU value in interface configuration files for IPoIB related bonds from 65520 to 64000. The change needs to be made to interface configuration files under the /etc/sysconfig/network-scripts directory and applies to the interface configuration files for bonds over IPoIB related slave devices, for example /etc/sysconfig/network-scripts/ifcfg-bond1. However, keep in mind that the numeric portion of the interface filenames that corresponding to IPoIB interfaces is expected to vary across compute nodes and vServers and so cannot be relied upon to identify which interface files are for bonds are over IPoIB rather than EoIB related slave interfaces. To fix these MTU values to the recommended settings, there are very useful instructions and a script on the MOS Note 1624434.1, and it's applicable physical and virtual configurations of Exalogic. Regarding the recommended MTU value for EoIB related interfaces, its maximum appropriate value is 1500. If for some reason a vServer has been created with a higher value (set on the /etc/sysconfig/network-scripts/ifcfg-bond0 file), then it must be fixed. An error like the following could be thrown under this circumstance: [root@vServer ~]# service network restart ... Bringing up interface bond0:  SIOCSIFMTU: Invalid argument Also an error like the one below can be seen on the /var/log/messages file of the vServer: kernel: T5074835532 [mlx4_vnic] eth1:vnic_change_mtu:360: failed: new_mtu 64000 2026 The MOS Note 1611657.1 is very useful for this purpose.

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  • Ubuntu Workstation

    - by John Smith
    I bought a dell inspiron n5110 hoping that i'll be able to use it fine with Linux; however i couldn't install the video card drivers and in 8 months the motherboard burned because the power management wasn't right and it was overheating. I want to buy a workstation pc that works with ubuntu. Does anyone have any suggestions? I'd like to have the videocard and all other hardware to be used properly Thank you

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  • Is there a simple isometric graphical game engine (using vectors?) that could be used for a (multiplayer) crafting/farming game? [closed]

    - by Renier Wijnen
    Possible Duplicate: Good, free isometric game engine? With little game development experience (albeit having graphical skills and some programming knowledge) a group currently working on a game used to explain permaculture through interaction would like to create a simple concept game. Is there a specific engine or set of tools we could used to achieve this? Being able to make it an (online) multiplayer game would be much preferred. Thank you in advance for your input.

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  • My Doors - Why Standards Matter to Business

    - by [email protected]
    By Brian Dayton on April 8, 2010 9:27 PM "Standards save money." "Standards accelerate projects." "Standards make better solutions." What do these statements mean to you? You buy technology solutions like Oracle Applications but you're a business person--trying to close the quarter, get performance reviews processed, negotiate a new sourcing contract, etc. When "standards" come up in presentations and discussions do you: - Nod your head politely - Tune out and check your smart phone - Turn to your IT counterpart and say "Bob's all over this standards thing, right Bob?" Here's why standards matter. My wife wants new external doors downstairs, ones that would get more light into the rooms. Am I OK with that? "Uhh, sure...it's a little dark in the kitchen." - 24 hours ago - wife calls to tell me that she's going to the hardware store and may look at doors - 20 hours ago - wife pulls into driveway, informs me that two doors are in the back of her station wagon, ready for me to carry - 19 hours ago - I re-discovered the fact that it's not fun to carry a solid wood door by myself - 5 hours ago - Local handyman, who was at our house anyway, tells me that the doors we bought will likely cost 2-3x the material cost in installation time and labor...the doors are standard but our doorways aren't We could have done more research. I could be more handy. Sure. But the fact is, my 1951 house wasn't built with me in mind. They built what worked and called it a day. The same holds true with a lot of business applications. They were designed and architected for one-time use with one use-case in mind. Today's business climate is different. If you're going to use your processes and technology to differentiate your business you should have at least a working knowledge of: - How standards can benefit your business - Your IT organization's philosophy around standards - Your vendor's track-record around standards...and watch for those who pay lip-service to standards but don't follow through The rallying cry in most IT organizations today is "learn more about the business, drop the acronyms." I'm not advocating that you go out and learn how to code in Java. But I do believe it will help your business and your decision-making process if you meet IT ½...even ¼ of the way there. Epilogue: The door project has been put on hold and yours truly has to return the doors to the hardware store tomorrow.

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  • 5 Ways to Provide Feedback to Ubuntu

    - by Chris Hoffman
    Ubuntu, like many other Linux distributions, is a community-developed operating system. In addition to getting involved and submitting patches, there are a variety of ways you can provide useful feedback and suggest features to Ubuntu. From voting on and suggesting the features you’d like to see to submitting data about your hardware support and reporting bugs – both in stable releases of Ubuntu and in development releases – Ubuntu offers several ways to submit feedback. How to Use an Xbox 360 Controller On Your Windows PC Download the Official How-To Geek Trivia App for Windows 8 How to Banish Duplicate Photos with VisiPic

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  • Brightness options in Ubuntu 12.04 desktop missing

    - by Harsh Thakar
    I am unable to change the brightness of my desktop screen using this path. System settings{top right corner of the screen)Under Personal Brightness & lock.No option to change brightness is available here.In Ubuntu 11.04 Shift key + +/- key was used to change brightness,the same doesn't work in 12.04. Also under System settings{top right corner of the screen)Under Hardware Displays,my monitor is recognized as a Laptop despite me using a desktop!

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  • Could anyone suggest me some image manipulation techniques to be added to my image viewer??

    - by avi
    Hello, I'm trying to develop a small image viewer just as an exercise to sharpen my programming skills. So far , all the features that I could think of adding to it are zooming in and out, inverting the colors of the image and resizing. Could anyone suggest me a few more features?? You are also welcome to suggest anything which has not been implemented yet. I would like to take it as a learning challenge. Thanks.

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  • Intel Puts Mobile CPUs on a Diet for Ultra-Thin Laptops

    <b>Hardware Central:</b> "Intel today broadened its number of ultra-low voltage processors (ULV) to include a complete range, from Celeron to Core i7, for the super-thin laptop market. This announcement builds on Intel's January introduction of laptop processors, which included only a few low-end ULV processors."

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  • ASP.NET book for desktop programmer. [closed]

    - by RealityDysfunction
    Fellow programmers, I have been learning C# for a while now, but my ultimate goal is to develop ASP.NET applications. A few ASP.NET books I looked at either start with absolute basics...What is C#? What is a function...or Assume that I have developed web apps in other languages like PHP...I am looking for a book that is tailored for people who already know desktop programming but wish to learn ASP.NET. Did anybody come across such a book? Many Thanks.

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  • Unix tools in business use: are they helpful?

    - by Prometheus
    Do you think knowing Unix tools like sed, awk, LaTeX, Perl give you a great edge in the business world? (e.g. being a manager) From my short reflection, the only profession that needs those sort of (plain text) tools is programming. Because even when I do creative writing, I rarely ever need it. I mean, do CEOs and executives of large corporations ever learn this kind of stuff if they were not CS major to begin with?

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