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  • When SharePoint Designer has its own designs

    - by PeterBrunone
    Recently, a colleague came to me with a simple task and an inscrutable error.  He just wanted to populate a text field with a querystring value.  If you've ever done this in SPD, you know it's fairly simple:  create a parameter, map it to a querystring value, and then use the resulting parameter name in your form field. Having done so, however, he was told the following by the ASP.NET "yellow barf page": The 'Text' property of 'asp:TextBox' does not allow child objects. As it turns out, he had done everything correctly.  The problem was that SharePoint Designer had decided the best place for his FieldDescription control was INSIDE the TextBox control.  Obviously the compiler doesn't know what to do with that.  When the FieldDescription was moved to a less obtrusive location, everything worked as expected.The moral of the story is, as always, don't trust what any WYSIWYG tool gives you.  If it looks great, then fine.  However, if there's a problem, remember that Design mode was written by human beings who make mistakes... just like the rest of us.Take THAT, Skynet.

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  • Some SharePoint NDA Information

    - by Sahil Malik
    Ad:: SharePoint 2007 Training in .NET 3.5 technologies (more information). Many years ago, at the last to last to last MVP summit, Microsoft was kind enough to share with us what they were thinking wayyyyyyyyyyyy ahead! I specially remember John Durant talking about the specific enhancements planned for SharePoint 2010 development experience. If you haven’t seen John Durant talking on stage, the guy has more enthusiasm than tiger woods in Amsterdam! The energy of his presentations is simply amazing. So, I pulled out my phone, and I snapped a picture! And, I emailed that picture to everyone in the MVP land, and Microsoft land, saying “We have evidence”, i.e. here are the promises that were made, and dammit we’ll see by the time you release SP2010 how many of these do you actually release. Here is the picture ladies and gentlemen -     It’s a good karate chop action shot isn’t it? Of course, we were all immediately warned not to share any of this seriously strictly NDA information at the time. Well, now that the information is out in the world, I can finally share now, this small tidbit of how far ahead Microsoft is thinking in their plans. Frankly, I wouldn’t be surprised, if today that they have a very clear idea what SharePoint vNext will be all about, or should I say vNextvNext? Have fun! Comment on the article ....

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  • BIP Debugging to a file

    - by Tim Dexter
    If you use the standalone server or with OBIEE and use OC4J as the web server. Have you ever taken a looksee at the console window (doc/xterm) that you use to start it. Ever turned on debugging to see masses of info flow by that window and want to capture it all? I have been debugging today and watched all that info fly by and on Windoze gets lost before you can see it! The BIP developers use the System.out.println() and System.err.println()methods in the BIP applications to generate debugging formation. Normally the output from these method calls go to the console where the OC4J process is started. However you can specify command line options when starting OC4J to direct the stdout and stderr output directly to files. The ?out and ?err parameters tell OC4J which file to direct the output to. All you need do is modify the oc4j.cmd file used to start BIP. I didnt get fancy and just plugged in the following to the file under the start section. I just modified the line: set CMDARGS=-config "%SERVER_XML%" -userThreads to set CMDARGS=-config "%SERVER_XML%" -out D:\BI\OracleBI\oc4j_bi\j2ee\home\log\oc4j.out -err D:\BI\OracleBI\oc4j_bi\j2ee\home\log\oc4j.err -userThreads Bounced the server and I now have a ballooning pair of debug files that I can pour over to my hearts content. The .out file appears to contain BIP only log info and the .err file, OBIEE messages. If you are using another web server to host BIP, just check out the user docs to find out how to get the log files to write. Note to self, remember to turn off the debug when Im done!

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  • Office add on saves you time if you use Moodle

    - by Brian Scarbeau
    Moodle is a free elearning content management software program. It does take a great deal of time to set it up because you need to upload your Office files to Moodle. Now, Microsoft has made that job easier with their new Office Add on. With it you can save directly into Moodle.   Here are the instructions on how to use. Just change the URL you use for your Moodle site. 1. Go to this site and download and install the software. http://www.educationlabs.com/projects/officeaddinformoodle/Pages/default.aspx 2. Open your Office Word in this example and then select Save to Moodle (Notice you can also open files that you have stored in moodle make changes and then save back to moodle. (WOW) 3,  Now because this is the first time you are using this feature you will see a dialog box that looks like this: Enter the moodle website exactly as you see here along with your username and password for moodle. Click the checkbox to remember you. 4. After you click on Save to Moodle you should see a dialog box like this: 5.  Click the plus on the left Lake Highland Preparatory School-Online Learning 6. You will now see the listing of your moodle classes. Now click on the class that you your file to go to and save. Now you use this file in moodle. Good luck!

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  • When Do OS Questions Belong on Hardware Service Requests?

    - by Get Proactive Customer Adoption Team
    Untitled Document My Oracle Support—Logging an Operating System Service Request One of the concerns we hear from our customers with Premier Support for Systems is that they have difficulty logging a Service Request (SR) for an operating system issue. Because Premier Support for Systems includes support for the hardware and the associated operating system, you log any operating system issues through a hardware Service Request. To create a hardware Service Request, you enter the information into the Hardware tab of the Create Service Request screen, but to ensure that the hardware Service Request you enter is recognized and routed appropriately for an operating system issue, you need to change the product from your specific hardware to the operating system that the hardware is running. The example below shows you how to create a Service Request for the operating system when the support level is Premier Support for Systems. The key to success is remembering that the operating system coverage is part of the hardware support. To begin, from anywhere within My Oracle Support, click on the Create SR button as you would to log any SR: Enter your Problem Summary and the Problem Description Next, click on the Hardware tab. Enter the System Serial Number (in this case “12345”) and click on Validate Serial Number: Notice that the product name for the hardware indicates “Sunfire T2000 Server” with an option for a drop down List of Values. Click on the product drop down and choose the correct operating system from the list. In this case I have chosen “OpenSolaris Operating System” Next, you will need to enter the correct operating system version: At this point, you may proceed to complete and submit the Service Request. If your company has Premier Support for Systems, just remember that your operating system has coverage under the hardware it runs on, so start with a Hardware tab on the Service Request screen and change the product related information to reflect the operating system you need help with. Following these simple steps will ensure that the system assigns your Service Request to the right support team for an operating system issue and the support engineer can quickly begin working your issue.

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  • TakeWhile and SkipWhile method in LINQ

    - by vik20000in
     In my last post I talked about how to use the take and the Skip keyword to filter out the number of records that we are fetching. But there is only problem with the take and skip statement. The problem lies in the dependency where by the number of records to be fetched has to be passed to it. Many a times the number of records to be fetched is also based on the query itself. For example if we want to continue fetching records till a certain condition is met on the record set. Let’s say we want to fetch records from the array of number till we get 7. For this kind of query LINQ has exposed the TakeWhile Method.     int[] numbers = { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 };     var firstNumbersLessThan6 = numbers.TakeWhile(n => n < 7);   In the same way we can also use the SkipWhile statement. The skip while statement will skip all the records that do not match certain condition provided. In the example below we are skiping all those number which are not divisible by 3. Remember we could have done this with where clause also, but SkipWhile method can be useful in many other situation and hence the example and the keyword.     int[] numbers = { 5, 4, 1, 3, 9, 8, 6, 7, 2, 0 };     var allButFirst3Numbers = numbers.SkipWhile(n => n % 3 != 0); Vikram

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  • New site – and a special offer

    - by Red Gate Software BI Tools Team
    SSAS Compare has a brand new website! The old page was thrown together in the way that most Red Gate labs sites tend to be — as experimental sites for experimental products. We’ve been developing SSAS Compare for a while now, so we decided it was time for something a bit prettier. The new site is mostly the work of Andrew, our marketing manager, who has all sorts of opinions about websites. One of the opinions Andrew has is that his photo should be on every site on the internet, or at least every Red Gate site on the internet, and that’s why his handsome visage now appears on the SSAS Compare page. Well, that isn’t quite true. According to Andrew, people download more software when they have photos of human beings to look at. We want as many people to try SSAS Compare as possible, so we got the team together for an intimate photoshoot directed by Red Gate’s resident recorder of light, Dom Reed (aka Mr Flibble). The photo will appear on the site as soon as Dom is finished photoshopping us into something more palatable, which is a big job. Until then, you’ll have to put up with Andrew. We’ve also used the new site to announce a special offer. Right now, SSAS Compare is still a free beta, but by signing up to our Early Access Program, you’ll get a 20% discount when we release SSAS Compare as a fully-fledged product. We’ll use your email address to send you news and updates about business intelligence tools from Red Gate (and nothing else). If that sounds good to you, go to the SSAS Compare site to sign up. By the way, the BI Tools team wasn’t the only thing Dom photographed last week. Remember Noemi’s blog about the flamenco dance? We’ll be at SQL Saturday in our home town of Cambridge this Saturday (8th September), handing out flyers of a distinctly Mediterranean flavour. If you’re attending, be sure to say hello!

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  • How can I fix apt-get autoremove wanting to uninstall most of my packages?

    - by Stefano
    I did change my packages in synaptic from manually installed to Automatically (they were not manually installed but automatically). Now they are marked for Autoremove. I tested it with sudo apt-get autoremove and the result is shown below (a reduced version because its almost all packages). I remember last year I had same issue and solved it via Ubuntu forums but the forum is down and I cannot reach the post! Anyone has any idea how to fix this? sudo apt-get autoremove Reading package lists... Done Building dependency tree Reading state information... Done The following packages will be REMOVED: unity-asset-pool unity-greeter unity-lens-applications unity-lens-files unity-lens-music unity-lens-photos unity-lens-video unity-scope-gdrive unity-scope-musicstores unity-scope-video-remote unity-services unity-tweak-tool unity-webapps-amazoncloudreader unity-webapps-common unity-webapps-facebookmessenger unity-webapps-gmail unity-webapps-googledocs unity-webapps-googleplus unity-webapps-launchpad unity-webapps-linkedi xserver-xorg-input-wacom xserver-xorg-video-all xserver-xorg-video-ati xserver-xorg-video-cirrus xserver-xorg-video-fbdev xserver-xorg-video-intel xserver-xorg-video-mach64 xserver-xorg-video-mga xserver-xorg-video-modesetting xserver-xorg-video-neomagic xserver-xorg-video-nouveau xserver-xorg-video-openchrome xserver-xorg-video-qxl xserver-xorg-video-r128 xserver-xorg-video-radeon xserver-xorg-video-s3 xserver-xorg-video-savage xserver-xorg-video-siliconmotion xserver-xorg-video-sis xserver-xorg-video-sisusb xserver-xorg-video-tdfx xserver-xorg-video-trident xserver-xorg-video-vesa xserver-xorg-video-vmware xul-ext-unity xul-ext-webaccounts xul-ext-websites-integration y-ppa-manager yad zenity zenity-common zip 0 upgraded, 0 newly installed, 1440 to remove and 0 not upgraded. After this operation, 3,853 MB disk space will be freed. Do you want to continue [Y/n]?

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  • Silverlight Cream for June 12, 2010 -- #880

    - by Dave Campbell
    In this Issue: Michael Washington, Diego Poza, Viktor Larsson, Brian Noyes, Charles Petzold, Laurent Bugnion, Anjaiah Keesari, David Anson, and Jeremy Likness. From SilverlightCream.com: My MEF Rant Read Michael Washington's discussion about MEF from someone that's got some experience, but not enough to remember the pain points... how it works, and what he'd like to see. Prism 4: What’s new and what’s next Diego Poza Why Office Hub is important for WP7 Viktor Larsson has another WP7 post up and he's talking about the Office Hub ... good description and maybe the first I've seen on the Office Hub. WCF RIA Services Part 1: Getting Started Brian Noyes has part 1 of a 10-part tutorial series on WCF RIA Services up at SilverlightShow. This first is the intro, but it's a good one. CompositionTarget.Rendering and RenderEventArgs Charles Petzold talks about CompositionTarget.Rendering and using it for calculating time span ... and it works in WPF and WP7 too... cool example from his WPF book, and all the code. Two small issues with Windows Phone 7 ApplicationBar buttons (and workaround) Laurent Bugnion has a post up from earlier this week that I missed describing problems with the WP7 ApplicationBar ... oh, and a workaround for it :) Animation in Silverlight Anjaiah Keesari has a really extensive post up on Silverlight animation, and this is an all-XAML thing... so buckle up we're going old-school :) Two fixes for my Silverlight SplitButton/MenuButton implementation - and true WPF support David Anson revisits and revises his SplitButton code based on a couple problem reports he received. Source for the button and the test project is included. Tips and Tricks for INotifyPropertyChanged Jeremy Likness is discussing INotifyPropertyChanged and describes an extension method. He does bring up a problem associated with this, so check that out. He finishes the post off with a discussion of "Observable Enumerables" Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • How I Record Screencasts

    - by Daniel Moth
    I get this asked a lot so here is my brain dump on the topic. What A screencast is just a demo that you present to yourself while recording the screen. As such, my advice for clearing your screen for demo purposes and setting up Visual Studio still applies here (adjusting for the fact I wrote those blog posts when I was running Vista and VS2008, not Windows 8 and VS2012). To see examples of screencasts, watch any of my screencasts on channel9. Why If you are a technical presenter, think of when you get best reactions from a developer audience in your sessions: when you are doing demos, of course. Imagine if you could package those alone and share them with folks to watch over and over? If you have ever gone through a tutorial trying to recreate steps to explore a feature, think how much more helpful it would be if you could watch a video and follow along. Think of how many folks you "touch" with a conference presentation, and how many more you can reach with an online shorter recording of the demo. If you invest so much of your time for the first type of activity, isn't the second type of activity also worth an investment? Fact: If you are able to record a screencast of a demo, you will be much better prepared to deliver it in person. In fact lately I will force myself to make a screencast of any demo I need to present live at an upcoming event. It is also a great backup - if for whatever reason something fails (software, network, etc) during an attempt of a live demo, you can just play the recorded video for the live audience. There are other reasons (e.g. internal sharing of the latest implemented feature) but the context above is the one within which I create most of my screencasts. Software & Hardware I use Camtasia from Tech Smith, version 7.1.1. Microsoft has a variety of options for capturing the screen to video, but I have been using this software for so long now that I have not invested time to explore alternatives… I also use whatever cheapo headset is near me, but sometimes I get some complaints from some folks about the audio so now I try to remember to use "the good headset". I do not use a web camera as I am not a huge fan of PIP. Preparation First you have to know your technology and demo. Once you think you know it, write down the outline and major steps of the demo. Keep it short 5-20 minutes max. I break that rule sometimes but try not to. The longer the video is the more chances that people will not have the patience to sit through it and the larger the download wmv file ends up being. Run your demo a few times, timing yourself each time to ensure that you have the planned timing correct, but also to make sure that you are comfortable with what you are going to demo. Unlike with a live audience, there is no live reaction/feedback to steer you, so it can be a bit unnerving at first. It can also lead you to babble too much, so try extra hard to be succinct when demoing/screencasting on your own. TIP: Before recording, hide your desktop/taskbar clock if it is showing. Recording To record you start the Camtasia Recorder tool Configure the settings thought the menus Capture menu to choose custom size or full screen. I try to use full screen and remember to lower the resolution of your screen to as low as possible, e.g. 1024x768 or 1360x768 or something like that. From the Tools -> Options dialog you can choose to record audio and the volume level. Effects menu I typically leave untouched but you should explore and experiment to your liking, e.g. how the mouse pointer is captured, and whether there should be a delay for the recording when you start it. Once you've configured these settings, typically you just launch this tool and hit the F9 key to start recording. TIP: As you record, if you ever start to "lose your way" hit F9 again to pause recording, regroup your thoughts and flow, and then hit F9 again to resume. Finally, hit F10 to stop recording. At that point the video starts playing for you in the recorder. This is where you can preview the video to see that you are happy with it before saving. If you are happy, hit the Save As menu to choose where you want to save the video.     TIP: If you've really lost your way to the extent where you'll need to do some editing, hit F10 to stop recording, save the video and then record some more - you'll be able to stitch the videos together later and this will make it easier for you to delete the parts where you messed up. TIP: Before you commit to recording the whole demo, every time you should record 5 seconds and preview them to ensure that you are capturing the screen the way you want to and that your audio is still correctly configured and at the right level. Trust me, you do not want to be recording 15 minutes only to find out that you messed up on the configuration somewhere. Editing To edit the video you launch another Camtasia app, the Camtasia Studio. File->New Project. File->Save Project and choose location. File->Import Media and choose the video(s) you saved earlier. These adds them to the area at the top/middle but not at the timeline at the bottom. Right click on the video and choose Add to timeline. It will prompt you for the Editing dimensions and I always choose Recording Dimensions. Do whatever edits you want to do for this video, then add the next video if you have one to stitch and repeat. In terms of edits there are many options. The simplest is to do nothing, which is the option I did when I first starting doing these in 2006. Nowadays, I typically cut out pieces that I don't like and also lower/mute the audio in other areas and also speed up the video in some areas. A full tutorial on how to do this is beyond the scope of this blog post, but your starting point is to select portions on the timeline and then open the Edit menu at the very top (tip: the context menu doesn't have all options). You can spend hours editing a recording, so don’t lose track of time! When you are done editing, save again, and you are now ready to Produce. Producing Production is specific to where you will publish. I've only ever published on channel9, so for that I do the following File -> Produce and share. This opens a wizard dialog In the dropdown choose Custom production settings Hit Next and then choose WMV Hit Next and keep the default of Camtasia Studio Best Quality and File Size (recommended) Hit Next and choose Editing dimensions video size Hit Next, hit Options and you get a dialog. Enter a Title for the project tab and then on the author tab enter the Creator and Homepage. Hit OK Hit Next. Hit Next again. Enter a video file name in the Production name textbox and then hit Finish. Now do other stuff while you wait for the video to be produced and you hear it playing. After the video is produced watch it to ensure it was produced correctly (e.g. sometimes you get mouse issues) and then you are ready for publishing it. Publishing Follow the instructions of the place where you are going to publish. If you are MSFT internal and want to choose channel9 then contact those folks so they can share their instructions (if you don't know who they are ping me and I'll connect you but they are easy to find in the GAL). For me this involves using a tool to point to the video, choosing a file name (again), choosing an image from the video to display when it is not playing, choosing what output formats I want, and then later on a webpage adding tags, adding a description, and adding a title. That’s all folks, have fun! Comments about this post by Daniel Moth welcome at the original blog.

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  • Why does Ubuntu reset brightness settings at the loading screen?

    - by leugim
    Since I first installed Ubuntu 11.10, I noticed that volume and screen brightness get reset every time Ubuntu starts. Why is this so? And what ways are there to keep brightness and volume levels after rebooting? I have found some scripts that change the screen-brightness at login. But this is not a good solution since login is slower because it seems to wait until the screen brightness is at the level specified by the script. After entering the password I see the screen brightness go down gradually. Only after this is complete (~1 or 2 seconds) does the background disappear and Unity come up. The screenbrightness is not remembered but instead redefined at login. So it gets remembered for the first part of the boot, then set to MAX and then again re-set to normal value by the script. My boot process is as follows: desired brightness: 2 (13,33%) / Max brightness: 15 (100%) Bios / brightness: OK GRUB (violet background color, white text) / brightness: OK Ubuntu loading screen with the dots / brightness: MAX (win7 loads with OK-brightness) User Login / brightness: MAX Unity starts / brightness: OK It seems to be more like a temporary patch than a actual solution. I'm looking for solutions that set the desired brightness permanently and consistently throughout the whole boot-process After updating to 12.04 the behavior is the same. I tried setpci -s 02:00.0 F4.B=XX The value of F4.B is always '0' regardless of what value I try to set it to (tried 0, ff, f, 5, etc) The solution in this answer does not have any noticeable effect: Desktop doesn't remember brightness settings after a reboot The variables at /sys/class/backlight/acpi_video0/ get changed if I use Fn+UP and Fn+DOWN Any help is appreciated. Thanks!

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  • Fix Firefox Not Scrolling with Up/Down Arrow Keys or Home/End Keys

    - by The Geek
    If you’ve encountered a problem where your Firefox installation no longer scrolls when you use the up or down arrow keys, and even the Home or End keys don’t work anymore, there’s an easy fix. When this problem happens, you’ll notice that moving the arrow keys around just moves the cursor around the page. Annoying! The problem is because you tripped the Caret Browsing feature at some point, and accidentally hit Yes. To fix this, you can just hit the F7 key again. Or, if you want to do it the about:config way, filter by accessibility.browsewithcaret and make sure it’s set to false. Remember, you can double-click on any boolean value to toggle between true and false. Similar Articles Productive Geek Tips Keyboard Ninja: Scrolling the Windows Command Prompt With Only the KeyboardShow Shortcut Keys in ScreenTips in Visual Studio 2003Show Shortcut Keys in ScreenTips in Visual Studio 2005Future Date a Post in Windows Live WriterDisable the Irritating Sticky / Filter Keys Popup Dialogs TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Need Help with Your Home Network? Awesome Lyrics Finder for Winamp & Windows Media Player Download Videos from Hulu Pixels invade Manhattan Convert PDF files to ePub to read on your iPad Hide Your Confidential Files Inside Images

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  • Function currying in Javascript

    - by kerry
    Do you catch yourself doing something like this often? 1: Ajax.request('/my/url', {'myParam': paramVal}, function() { myCallback(paramVal); }); Creating a function which calls another function asynchronously is a bad idea because the value of paramVal may change before it is called.  Enter the curry function: 1: Function.prototype.curry = function(scope) { 2: var args = []; 3: for (var i=1, len = arguments.length; i < len; ++i) { 4: args.push(arguments[i]); 5: } 6: var m = this; 7: return function() { 8: m.apply(scope, args); 9: }; 10: } This function creates a wrapper around the function and ‘locks in’ the method parameters.  The first parameter is the scope of the function call (usually this or window).  Any remaining parameters will be passed to the method call.  Using the curry method the above call changes to: 1: Ajax.request('/my/url', {'myParam': paramVal}, myCallback.curry(window,paramVal)); Remember when passing objects to the curry method that the objects members may still change.

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  • Oye! Help Build OTN America Latina!

    - by rickramsey
    Yes, tango is passion, but it is passion born of romance. Not passion born of lust. As it is so often portrayed today. Understand that, and you will begin to understand why life in Latin America is so rich. image courtesy of Continental Magazine. You don't often get a chance to shape the direction of a technical comunidad. Somebody else gets there first and pretty soon everyone is in a rathole about the relevance of rutabagas. Or rutabagels as my public-school-educated hijas prefer to call them. Well, OTN American Latina is just starting up. If you're a techie who speaks Spanish or Portuguese, or if you just like hanging out with techies latinoamericanos (and who doesn't?), here's how to get in on the fun: Why Portuguese Speaking Techies Should Join Why Spanish Speaking Techies Should Join And here are the sites themselves: OTN America Latina in Brazilian Portuguese OTN America Latina in Spanish If you're not sure which site to visit, just remember that Brazilian Portuguese is Spanish spoken with a little body English. Ricardo System Admin and Developer Community of the Oracle Technology Network

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  • Tuning Red Gate: #5 of Multiple

    - by Grant Fritchey
    In the Tuning Red Gate series I've shown you how to look at a current load on the system and how to drill down to look at historical analysis of the system. I've also shown how you can see the top queries and other information from the current status of the system. I have one more thing I can show you before we need to start fixing things and showing how that affects the data collected, historical moments in time. For example, back in Post #3 I was looking at some spikes in some of the monitored resources that were taking place a couple of weeks back in time. Once I identify a moment in time that I'm interested in, I can go back to the first page of Monitor, Global Overview, and click on the icon: From this you can select the date and time you're interested in. For example, I saw some serious CPU queues last week: This then rolls back the time for all the information that's available to the Global Overview and the drill down to the server and the SQL Server instance there. This then allows me to look at the Top Queries running at this point, sort them by CPU and identify what was potentially the query that was causing the problem right when I saw the CPU queuing This ability to correlate a moment in time with the information available to you in the Analysis window makes for an excellent tool to investigate your systems going backwards in time. It really makes a huge difference in your knowledge. It's not enough to know that something happened at a particular time. You need to know what it was that was occurring. Remember, the key to tuning your systems is having enough knowledge about them. I'll post more on Tuning Red Gate as soon as I can get some queries rewritten. I'm working on that.

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  • Investigation: Can different combinations of components effect Dataflow performance?

    - by jamiet
    Introduction The Dataflow task is one of the core components (if not the core component) of SQL Server Integration Services (SSIS) and often the most misunderstood. This is not surprising, its an incredibly complicated beast and we’re abstracted away from that complexity via some boxes that go yellow red or green and that have some lines drawn between them. Example dataflow In this blog post I intend to look under that facade and get into some of the nuts and bolts of the Dataflow Task by investigating how the decisions we make when building our packages can affect performance. I will do this by comparing the performance of three dataflows that all have the same input, all produce the same output, but which all operate slightly differently by way of having different transformation components. I also want to use this blog post to challenge a common held opinion that I see perpetuated over and over again on the SSIS forum. That is, that people assume adding components to a dataflow will be detrimental to overall performance. Its not surprising that people think this –it is intuitive to think that more components means more work- however this is not a view that I share. I have always been of the opinion that there are many factors affecting dataflow duration and the number of components is actually one of the less important ones; having said that I have never proven that assertion and that is one reason for this investigation. I have actually seen evidence that some people think dataflow duration is simply a function of number of rows and number of components. I’ll happily call that one out as a myth even without any investigation!  The Setup I have a 2GB datafile which is a list of 4731904 (~4.7million) customer records with various attributes against them and it contains 2 columns that I am going to use for categorisation: [YearlyIncome] [BirthDate] The data file is a SSIS raw format file which I chose to use because it is the quickest way of getting data into a dataflow and given that I am testing the transformations, not the source or destination adapters, I want to minimise external influences as much as possible. In the test I will split the customers according to month of birth (12 of those) and whether or not their yearly income is above or below 50000 (2 of those); in other words I will be splitting them into 24 discrete categories and in order to do it I shall be using different combinations of SSIS’ Conditional Split and Derived Column transformation components. The 24 datapaths that occur will each input to a rowcount component, again because this is the least resource intensive means of terminating a datapath. The test is being carried out on a Dell XPS Studio laptop with a quad core (8 logical Procs) Intel Core i7 at 1.73GHz and Samsung SSD hard drive. Its running SQL Server 2008 R2 on Windows 7. The Variables Here are the three combinations of components that I am going to test:     One Conditional Split - A single Conditional Split component CSPL Split by Month of Birth and income category that will use expressions on [YearlyIncome] & [BirthDate] to send each row to one of 24 outputs. This next screenshot displays the expression logic in use: Derived Column & Conditional Split - A Derived Column component DER Income Category that adds a new column [IncomeCategory] which will contain one of two possible text values {“LessThan50000”,”GreaterThan50000”} and uses [YearlyIncome] to determine which value each row should get. A Conditional Split component CSPL Split by Month of Birth and Income Category then uses that new column in conjunction with [BirthDate] to determine which of the same 24 outputs to send each row to. Put more simply, I am separating the Conditional Split of #1 into a Derived Column and a Conditional Split. The next screenshots display the expression logic in use: DER Income Category         CSPL Split by Month of Birth and Income Category       Three Conditional Splits - A Conditional Split component that produces two outputs based on [YearlyIncome], one for each Income Category. Each of those outputs will go to a further Conditional Split that splits the input into 12 outputs, one for each month of birth (identical logic in each). In this case then I am separating the single Conditional Split of #1 into three Conditional Split components. The next screenshots display the expression logic in use: CSPL Split by Income Category         CSPL Split by Month of Birth 1& 2       Each of these combinations will provide an input to one of the 24 rowcount components, just the same as before. For illustration here is a screenshot of the dataflow containing three Conditional Split components: As you can these dataflows have a fair bit of work to do and remember that they’re doing that work for 4.7million rows. I will execute each dataflow 10 times and use the average for comparison. I foresee three possible outcomes: The dataflow containing just one Conditional Split (i.e. #1) will be quicker There is no significant difference between any of them One of the two dataflows containing multiple transformation components will be quicker Regardless of which of those outcomes come to pass we will have learnt something and that makes this an interesting test to carry out. Note that I will be executing the dataflows using dtexec.exe rather than hitting F5 within BIDS. The Results and Analysis The table below shows all of the executions, 10 for each dataflow. It also shows the average for each along with a standard deviation. All durations are in seconds. I’m pasting a screenshot because I frankly can’t be bothered with the faffing about needed to make a presentable HTML table. It is plain to see from the average that the dataflow containing three conditional splits is significantly faster, the other two taking 43% and 52% longer respectively. This seems strange though, right? Why does the dataflow containing the most components outperform the other two by such a big margin? The answer is actually quite logical when you put some thought into it and I’ll explain that below. Before progressing, a side note. The standard deviation for the “Three Conditional Splits” dataflow is orders of magnitude smaller – indicating that performance for this dataflow can be predicted with much greater confidence too. The Explanation I refer you to the screenshot above that shows how CSPL Split by Month of Birth and salary category in the first dataflow is setup. Observe that there is a case for each combination of Month Of Date and Income Category – 24 in total. These expressions get evaluated in the order that they appear and hence if we assume that Month of Date and Income Category are uniformly distributed in the dataset we can deduce that the expected number of expression evaluations for each row is 12.5 i.e. 1 (the minimum) + 24 (the maximum) divided by 2 = 12.5. Now take a look at the screenshots for the second dataflow. We are doing one expression evaluation in DER Income Category and we have the same 24 cases in CSPL Split by Month of Birth and Income Category as we had before, only the expression differs slightly. In this case then we have 1 + 12.5 = 13.5 expected evaluations for each row – that would account for the slightly longer average execution time for this dataflow. Now onto the third dataflow, the quick one. CSPL Split by Income Category does a maximum of 2 expression evaluations thus the expected number of evaluations per row is 1.5. CSPL Split by Month of Birth 1 & CSPL Split by Month of Birth 2 both have less work to do than the previous Conditional Split components because they only have 12 cases to test for thus the expected number of expression evaluations is 6.5 There are two of them so total expected number of expression evaluations for this dataflow is 6.5 + 6.5 + 1.5 = 14.5. 14.5 is still more than 12.5 & 13.5 though so why is the third dataflow so much quicker? Simple, the conditional expressions in the first two dataflows have two boolean predicates to evaluate – one for Income Category and one for Month of Birth; the expressions in the Conditional Split in the third dataflow however only have one predicate thus they are doing a lot less work. To sum up, the difference in execution times can be attributed to the difference between: MONTH(BirthDate) == 1 && YearlyIncome <= 50000 and MONTH(BirthDate) == 1 In the first two dataflows YearlyIncome <= 50000 gets evaluated an average of 12.5 times for every row whereas in the third dataflow it is evaluated once and once only. Multiply those 11.5 extra operations by 4.7million rows and you get a significant amount of extra CPU cycles – that’s where our duration difference comes from. The Wrap-up The obvious point here is that adding new components to a dataflow isn’t necessarily going to make it go any slower, moreover you may be able to achieve significant improvements by splitting logic over multiple components rather than one. Performance tuning is all about reducing the amount of work that needs to be done and that doesn’t necessarily mean use less components, indeed sometimes you may be able to reduce workload in ways that aren’t immediately obvious as I think I have proven here. Of course there are many variables in play here and your mileage will most definitely vary. I encourage you to download the package and see if you get similar results – let me know in the comments. The package contains all three dataflows plus a fourth dataflow that will create the 2GB raw file for you (you will also need the [AdventureWorksDW2008] sample database from which to source the data); simply disable all dataflows except the one you want to test before executing the package and remember, execute using dtexec, not within BIDS. If you want to explore dataflow performance tuning in more detail then here are some links you might want to check out: Inequality joins, Asynchronous transformations and Lookups Destination Adapter Comparison Don’t turn the dataflow into a cursor SSIS Dataflow – Designing for performance (webinar) Any comments? Let me know! @Jamiet

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  • Python HTTPS requests (urllib2) fails on Ubuntu 12.04 without proxy

    - by Pablo
    I have an little app I wrote in Python and it used to work... until yesterday, when it suddenly started giving me an error in a HTTPS connection. I don't remember if there was an update, but both Python 2.7.3rc2 and Python 3.2 are failing just the same. I googled it and found out that this happens when people are behind a proxy, but I'm not (and nothing have changed in my network since the last time it worked). My syster's computer running windows and Python 2.7.2 has no problems (in the same network). response = urllib2.urlopen(url).read() File "/usr/lib/python2.7/urllib2.py", line 126, in urlopen return _opener.open(url, data, timeout) File "/usr/lib/python2.7/urllib2.py", line 400, in open response = self._open(req, data) File "/usr/lib/python2.7/urllib2.py", line 418, in _open '_open', req) File "/usr/lib/python2.7/urllib2.py", line 378, in _call_chain result = func(*args) File "/usr/lib/python2.7/urllib2.py", line 1215, in https_open return self.do_open(httplib.HTTPSConnection, req) File "/usr/lib/python2.7/urllib2.py", line 1177, in do_open raise URLError(err) urllib2.URLError: <urlopen error [Errno 8] _ssl.c:504: EOF occurred in violation of protocol> What's wrong? Any help is appreciated. PS.: Older python versions don't work either, not in my system and not in a live session from USB, but DO work in a Ubuntu 11.10 live session.

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  • The art of Unit Testing with Examples in .NET

    - by outcoldman
    First time when I familiarized with unit testing was 5 or 6 years ago. It was start of my developing career. I remember that somebody told me about code coverage. At that time I didn’t write any Unit tests. Guy, who was my team lead, told me “Do you see operator if with three conditions? You should check all of these conditions”. So, after that I had written some code, I should go to interface and try to invoke all code which I wrote from user interface. Nice? At current time I know little more about tests and unit testing. I have not participated in projects, designed by Test Driven Development (TDD). Basics of my knowledge are a spying code of my colleagues, some articles and screencasts. I had decide that I should know much more, and became a real professional of unit testing, this is why I had start to read book The art of Unit Testing with Examples in .NET. More than, in my current job place looks like I’m just one who writing unit tests for my code. I should show good examples of my tests. ,a href="http://outcoldman.ru/en/blog/show/267"Read more...

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  • Intel graphics driver installer, now the CPU fan is rarely quiet

    - by Space monkey
    I have an Optimus chipset: Intel HD 4000 (i7-3635QM CPU) Geforce 640m I don't care about the NVIDIA card, so I didn't try to install any proprietary drivers for it. So: I was having a choppy+high CPU experience with gnome-shell on Ubuntu 14.04. Only happened when I tried moving a window around quickly. I used the Intel graphics installer hoping that it will fix the problem. It did fix the problem, now there is no choppyness or high CPU when I move windows around. However, there is a new problem now: The fan is rarely quiet, doing barely anything at all will cause the fan to go into loud mode quickly. That happens despite the CPU usage being at just around 4%. This wasn't the case before installing Intel drivers. It would normally only do that if, for example, I'm installing packages or doing something that puts some stress on the CPU. I set all CPU cores to "powersave" using cpufreq-set, but nothing changed. Also on Windows, the fans are really quiet when I'm in powersave mode. I believe they completely shut off for most of the time. I remember the installer giving me a report at the end as to which packages it installed. Unfortunately, I didn't save the report and I don't know where it would have saved it if it did. Any ideas or similar experiences?

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  • Silverlight Cream for December 23, 2010 -- #1014

    - by Dave Campbell
    In this 4-days loss to a sinus infection and all-submittal Issue.... and this only catches me up on submittals through last Sunday: Mark Monster, Sacha Barber, Rénald Nollet, Georgi Atanasov, and András Velvárt. Above the Fold: Silverlight: "Silverlight with Facebook - a practical guide to integration" András Velvárt WP7: "RadDateSelector for Windows Phone 7 – Loaded within a standard in-browser Silverlight application" Georgi Atanasov MVVM: "Cinch - A Rich Full Featured WPF/SL MVVM Framework" Sacha Barber From SilverlightCream.com: Solving 3 problems with the ShellTileSchedule Mark Monster is discussing the Shell Tile Schedule, or rather problems therewith... 3 of them to be exact. He discusses them at lenght and describes solutions to each. Cinch - A Rich Full Featured WPF/SL MVVM Framework After Sacha Barber contacted me, I searched SilverlightCream and only found 1 reference to Cinch... what gives... this looks pretty good. If you're blogging about it let me know, if you're not, check it out! SQL Azure Database Manager – Part 2 : Now you’re in, take a tour Rénald Nollet has part 2 of his SQL AZure Database Manager up for us to look at, and this time out he's explaining the UI. RadDateSelector for Windows Phone 7 – Loaded within a standard in-browser Silverlight application. This is a cool post with a sort-of twist to it... Georgi Atanasov has a post up about using Telerik's WP7 RadDateSelector ... but in a SL4 app... and why not... if it works for SL3.x, it should work in SL4 right? Silverlight with Facebook - a practical guide to integration András Velvárt has a great post up (as usual) discussing 'harnessing the power of social networks' ... remember his great image of the soccer match where people could tag themselves? ... well, get some of the explanation here! (and some code) Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • 12.04: Persistent Gimp 2.2 from Gimphoto or Gimpshop. Cannot install 2.8

    - by Jorge M. Treviño
    I have a very messed up installation of Gimp. Some time ago I installed Gimpshop or Gimphoto (can't really remember which) and it installed Gimp 2.2. Didn't work for me and tried to remove it. I've followed all Gimp remove, autoremove, clean, update and upgrade instructions I've found here to no avail. Now Software Center doesn't even show 2.8 but instead it does 2.6. I've installed and removed Gimp from terminal nth times. Running Gimp from the dash doesn't do anything but entering "Gimp" in the terminal prompt gives me a 2.2 installation screen. Cannot for the life of me find and remove the darn leftover garbage. How can I completely clean my system (12.04, fully updated today) from everything Gimp so I can give 2.8 a try? Anticipated apologies if this is a dupe but I've run through all messages with a Gimp tag and none has helped me. sudo apt-get install -f gives me 0,0,0,0. Thanks in advance.

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  • Writing to the UI with MonoDroid using RunOnUIThread

    - by Wallym
    I've been pulling my hair out over the past day or so trying to update the UI in my test app.  I was having problem after problem.  I finally got down to my base problem.  I could not write out to my TextView.  WTF could be causing that?  I can write to my UI in other parts of my app.  This is pure craziness.  I thought long and hard and nothing was coming to me.  Wait, the light bulb went on.  I am in the wrong thread.  Great, how do I write in the correct thread?  MonoDroid supports the entire AsyncTask set of objects, but this seemed like overkill.  I was reading and came across RunOnUIThread().......Bing..........The lightbulb has been invented...BlueStar Airlines (oh wait, wrong context). Anyway, here is what I needed:this.RunOnUiThread(() => TextViewControl.Text = "Hello World"); Enjoy!!!!!!!  Remember kiddies, running on the main ui for off device operations is bad, not as bad as crossing the streams bad, but bad as in trying to drive on a flat tire bad. It won't kill you, but it does keep you from getting anywhere.

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  • Wubi doens't work anymore - shows 'No wubildr' error

    - by Joe
    Basics: HP Mini 311 Ubuntu netbook edition 10.04 (installed via Wubi) Symptoms: I load to Windows Boot Manager as usual. Options are Windows 7 and Ubuntu Netbook, like usual. Selecting Windows 7 does as it should. Loading Ubuntu Netbook, though, does not take me to the usual screen where it lets me select versions of Ubuntu (sorry for bad wording, not sure what the real name is called; it's where you select from about 6 items; I always picked the first due to lack of knowledge without issue). Instead it flashes an error in white on a black screen then restarts very quickly. It took me a few restarts, but here is the error: Try (hd0,0): NTSF5 No wubildr Try (hd0,1): NTSF5: Situation: I have no clue what caused it. The only thing I did last night on Ubuntu was install Skype, but the mic didn't work instantly so I got lazy and switched to Windows 7 and used Skype on there. When I tried to switch back to Ubuntu it began this. (There may be something I forget... it was 5 in the morning). There were no recent updates that I remember. No weird activity. Just... random. Help please?

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  • SQL SERVER – T-SQL Scripts to Find Maximum between Two Numbers

    - by pinaldave
    There are plenty of the things life one can make it simple. I really believe in the same. I was yesterday traveling for community related activity. On airport while returning I met a SQL Enthusiast. He asked me if there is any simple way to find maximum between two numbers in the SQL Server. I asked him back that what he really mean by Simple Way and requested him to demonstrate his code for finding maximum between two numbers. Here is his code: DECLARE @Value1 DECIMAL(5,2) = 9.22 DECLARE @Value2 DECIMAL(5,2) = 8.34 SELECT (0.5 * ((@Value1 + @Value2) + ABS(@Value1 - @Value2))) AS MaxColumn GO I thought his logic was accurate but the same script can be written another way. I quickly wrote following code for him and which worked just fine for him. Here is my code: DECLARE @Value1 DECIMAL(5,2) = 9.22 DECLARE @Value2 DECIMAL(5,2) = 8.34 SELECT CASE WHEN @Value1 > @Value2 THEN @Value1 ELSE @Value2 END AS MaxColumn GO He agreed that my code is much simpler but as per him there is some problem with my code which apparently he does not remember at this time. There are cases when his code will give accurate values and my code will not. I think his comment has value but both of us for the moment could not come up with any valid reason. Do you think any scenario where his code will work and my suggested code will not work? Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology

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  • How to Attach Sticky-Note Reminders to Windows and Applications

    - by Erez Zukerman
    Some applications come with a boatload of keyboard shortcuts; these can make you very fast, but can be difficult to remember, especially if you customized some of them. What if you could have your own little cheat sheet that would pop up next to the application every time your ran it? Read on to see how you can make one. We’re going to be using an excellent (and free) application called Stickies. If you don’t have it yet, go to the Stickies homepage, download it, and install it. Latest Features How-To Geek ETC How to Get Amazing Color from Photos in Photoshop, GIMP, and Paint.NET Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? Get the MakeUseOf eBook Guide to Hacker Proofing Your PC Sync Your Windows Computer with Your Ubuntu One Account [Desktop Client] Awesome 10 Meter Curved Touchscreen at the University of Groningen [Video] TV Antenna Helper Makes HDTV Antenna Calibration a Snap Turn a Green Laser into a Microscope Projector [Science] The Open Road Awaits [Wallpaper]

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