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  • TraceTune: Improved Comment View

    - by Bill Graziano
    I wanted an easier way to identify queries I’d already looked at so I could skip them.  I’ve been entering comments for each query as I review it.  These comments typically fall into three categories: a change I made, no easy fix available or something needs to be changed on the client.  TraceTune now highlights any statement with a comment in bold.  If you hover over the statement you’ll see the most recent comment for that statement. This gives me a quick way to see what’s new and identify those queries that still need work.  This is especially helpful when I come back to a server after weeks or months away.  These comments help jar my memory and remind me what I’ve worked on. I made the font slightly smaller in some of the tables.  It’s still readable but I’m able to get more of a SQL statement on the screen.  I also got to re-experience the pain of Internet Explorer, Chrome and FireFox all displaying text (and pop-up text) slightly different. Seeing the comments on a trace has been a big help to me.  I often do a round of tuning and then don’t come back to a server until months later.  Having the comments available helps me get back up to speed quickly.

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  • Moving From IT to Embedded software Developing

    - by Ameer Adel
    i worked for two years at a channel station, managing various Types of tasks, varying from printers installation, software solution, down to managing and maintaining server automation, to be honest, i always been enthusiastic about programming, i studied at some affordable college and finished my IT path successfully, my graduation project was in C# ADO.NET couple of years ago. Obviously it was so much of a beginner spaghetti code than a well furnished code. I also had the chance; after leaving the IT career, to study about some ASP.NET MVC and web apps development. I have rookie level of coding skills due to the poor level of education i endured, and sufficient resources. Currently i m working as a trainee in a newly opened embedded software development company, that is being said, i am, as i sound, have a little idea about the algorithms included, as i was reading for the past couple of days, embedded system development requires more strict coding skills, including memory management, CPU optimization according to its architect, and couple of other tricks regarding the display, and power management if mobile.. etc. My question is, What type of Algorithms am i supposed to use in such cases, as i mentioned before, i am really enthusiastic about learning programming skills and algorithms related to embedded systems and programming languages, including C/C++, Java, C#, and some EC++ if still operational.

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  • If I want to dual-boot Ubuntu with another OS, what partitioning method should I use?

    - by Jay
    I have Ubuntu running as a vm in VirtualBox at the moment, but in the future, if I want to dual-boot it with Windows or another OS installed on my hard-drive, what partitioning method should I use to make room for it? 1)Manually partition my hard drive via disk management in Windows (or the equivalent in another OS), making appropriate room for the main partition upon which Ubuntu will be installed and swap space; 2)Partition via the Ubuntu installer options; 3)Use gparted or another free tool like it. I am uncertain as to why I would want to use one over the other. Lastly, am I correct to think that it would be the acme of foolishness to try to partition drives within a virtual machine (since that partitioning would be inherently limited to the limitations set upon it by the virtualization software, e.g., VirtualBox)? Thanks! P.S. Oh, and I am also planning on not modifying the MBR of Windows if I ever do dual-boot with Ubuntu, using instead a piece of free software (like easyBCD or something) to avoid the headaches of Grub being overwritten by a Windows update.

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  • Today in the OTN Lounge (Wednesday October 3, 2012)

    - by Bob Rhubart
    Here's a quick rundown of today's activities in the OTN Lounge: OTN Lounge hours today: 8:00 am - 6:00pm 9:00 am - 1:00 pm RAC Attack Learn about Oracle Real Application Clustering (RAC) in this collaborative event. You'll work with experts from the IOUG RAC SIG to get an Oracle Database 11gR2 RAC cluster running inside a virtual machine. For more information: RAC attack at Oracle Open World (Pythian Blog) RAC Attack - Oracle Cluster Database at Home/Events (WikiBooks) 4:30 pm - 8:00 pm Oracle Social Network Developer Challenge Judging The Oracle Social Network Developer Challenge comes to its conclusion with the final judging on entries and the award of the single prize: $500 in Amazon gift cards. Click here for more information. 4:30 pm - 5:30 pm Oracle ADF / Oracle Fusion Middleware Meet-up Join other Oracle ADF and Oracle Fusion Middleware developers and meet the product managers and engineers behind Oracle ADF, ADF Mobile, and ADF Essentials. Did we mention free beer? The OTN Lounge is located in the Howard St. Tent, between 3rd and 4th, directly between Moscone North and Moscone South. Access to the OTN Lounge requires an Oracle OpenWorld or JavaOne conference badge.

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  • How can I define custom keyboard mappings to resize, move, and manage windows?

    - by fumon
    I just returned to ubuntu (13.04) after a year using OS X exclusively. I love the improvements that have come to ubuntu and unity, and I'm glad to be back. There's just one thing, though... Slate is a simple OS X tool that allows users to quickly create powerful keyboard macros and really take advantage of their screen space. I have to say I was spoiled by it. Even on a tiny laptop, my workflow was never interrupted by changing workspaces or leaving the keyboard to adjust a window, because perfect adjustment was a keystroke or two away. For example: bind h:ctrl;alt;cmd resize -10% +0 # this increases the window's left width by 10% bind h:shift;alt nudge -10% +0 # this moves the window left by 10% You make a big config file, and like vim, tmux, and everything else, it just becomes muscle memory. I can't seem to find a way to achieve anything close to this in linux or ubuntu. I've tried to make do with compiz window settings and the built-in stuff Ubuntu offers, but it's not even in the same realm. Although to be fair, this level of tuning isn't something most people care about. Thanks, guys. :) Any feedback would be appreciated.

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  • Stop Time Sync Between Host and Guest - VirtualBox

    - by KoopaTroopa
    So I've been googling and I've tried the following commands. I want to stop the virtual machine from having the correct time and just to stick with what time it last recorded. The host operating system is Ubuntu 12.04 and the guest is Windows XP. I've turned time syncing off in XP so it won't do that when I connect to the Internet. However it does appear to take the time from ubuntu and set it as it's own. VBoxManage setextradata XP11 “VBoxInternal/TM/WarpDrivePercentage” 200 vboxmanage setextradata XP11 "VBoxInternal/Devices/VMMDev/0/Config/GetHostTimeDisabled" "1" Both commands haven't work as the time is always set to the exact same as Ubuntu's. I've located the extradata entry in the virtualbox XML file. It states both changes that the commands above are set to make. But of course it still hasn't stopped updating the time. <ExtraData> <ExtraDataItem name="GUI/LastGuestSizeHint" value="1152,864"/> <ExtraDataItem name="GUI/LastNormalWindowPosition" value="74,52,1152,911"/> <ExtraDataItem name="VBoxInternal/Devices/VMMDev/0/Config/GetHostTimeDisabled" value="1"/> <ExtraDataItem name="&#x201C;VBoxInternal/TM/WarpDrivePercentage&#x201D;" value="200"/> </ExtraData>

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  • Stylecop 4.7.36.0 is out!

    - by TATWORTH
    Stylecop 4.7.36.0 has been released at http://stylecop.codeplex.com/releases/view/79972This is an update to coincide with the latest ReSharper. The full fix list is:4.7.36.0 (508dbac00ffc)=======================Fix for 7344. Don't throw 1126 inside default expressions.Fix for 7371. Compare Namespace parts using the CurrentCulture and not InvariantCulture.Fix for 7386. Don't throw casing violations for filed names in languages that do not support case (like Chinese). Added new tests.fix for 7380. Catch Exception caused by CRM Toolkit.Update ReSharper 7.0 dependency to 7.0.1 (7.0.1098.2760)Fix for 7358. Use the RuleId in the call to MSBuild Logging.Fix for 7348. Update suggestion text for constructors.Fix for 7364. Don't throw 1126 for New Array Expressions.Fix for 7372. Throw 1126 inside catch blocks wasn't working. Add new tests.Fix for 7369. Await is allowed to be inside parenthesis. Add new tests.Fix testsCorrect styling issues.Fix for 7373. Typeparam violations were not being thrown in all cases. Added new tests.Fix for 7361. Rule 1120 was logging against the root element and so Suppressions wouldn't work. Fixed and added tests.Updating de-DE resources - from Michael Diermeier - thank you.Change for 7368. Add the violation count into the Task outputs.Fix for 7383. Fix for memory leak in plugins.Update environment to detect ReSharper 7Fix for 7378. Null reference exception from command line run in message output.Update release history.

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  • My Obligatory IPad Post

    - by mark.wilcox
    I've had my IPad for about a week now. So I thought I'd write some thoughts down based on my initial experiences. Here are my initial take-aways: 1 - Netflix OnDemand - I'm a movie junkie. I'm now more apt to just start a movie as background sound for my workday (I telecommute - so except for the occasional bark from my dog, it's awfully quiet here if I don't have something going). 2 - The Email Client is really nice and I'm as fast or faster typing when I have the wireless keyboard engaged. Even with onscreen keyboard - I'm already close to 75% of desktop speed 3 - The battery life is incredible - I think this is the first case where a mobile device actually under-promised on battery 4 - It totally has killed the notion of using a normal PC for my wife and mother-in-law - neither of which had wanted an iPhone/iPod Touch or really any Apple device until they got to play with my iPad. The concept of - instant on, easy to hold and touch-based navigation has them hooked. Heck, it has me hooked. My ultimate goal is to be able to have it at least replace the need to take my netbook with me on the road. I haven't had a chance to complete my testing on that front yet - between work, my wife traveling (for a change) and now my wife home sick - I haven't had time to just play with it. But so far my only regret - that I haven't already bought two more for everyone else in my family who wants to use mine. Posted via email from Virtual Identity Dialogue

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  • pointers to member functions in an event dispatcher

    - by derivative
    For the past few days I've been trying to come up with a robust event handling system for the game (using a component based entity system, C++, OpenGL) I've been toying with. class EventDispatcher { typedef void (*CallbackFunction)(Event* event); typedef std::unordered_map<TypeInfo, std::list<CallbackFunction>, hash_TypeInfo > TypeCallbacksMap; EventQueue* global_queue_; TypeCallbacksMap callbacks_; ... } global_queue_ is a pointer to a wrapper EventQueue of std::queue<Event*> where Event is a pure virtual class. For every type of event I want to handle, I create a new derived class of Event, e.g. SetPositionEvent. TypeInfo is a wrapper on type_info. When I initialize my data, I bind functions to events in an unordered_map using TypeInfo(typeid(Event)) as the key that corresponds to a std::list of function pointers. When an event is dispatched, I iterate over the list calling the functions on that event. Those functions then static_cast the event pointer to the actual event type, so the event dispatcher needs to know very little. The actual functions that are being bound are functions for my component managers. For instance, SetPositionEvent would be handled by void PositionManager::HandleSetPositionEvent(Event* event) { SetPositionEvent* s_p_event = static_cast<SetPositionEvent*>(event); ... } The problem I'm running into is that to store a pointer to this function, it has to be static (or so everything leads me to believe.) In a perfect world, I want to store pointers member functions of a component manager that is defined in a script or whatever. It looks like I can store the instance of the component manager as well, but the typedef for this function is no longer simple and I can't find an example of how to do it. Is there a way to store a pointer to a member function of a class (along with a class instance, or, I guess a pointer to a class instance)? Is there an easier way to address this problem?

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  • JavaOne Technology Conference Is Coming to Russia

    - by Tori Wieldt
    JavaOne Russia 17-18 AprilRussian Academy of Sciences, MoscowRegister Now JavaOne and Oracle Develop 2012 Russia offers a wide variety of sessions, hands-on labs, keynotes, demos, and the opportunity to network with developer peers. If you’re looking for in-depth sessions on Java technologies and tools, this is the conference for you. Your registration also gets you into Oracle Develop sessions as well, so you can learn about application servers, cloud development and, of course, database development. The JavaOne Russia tracks are:Client-Side Technologies and Rich User ExperiencesLearn about developments in Java for the desktop and practices for building rich, immersive, and powerful user experiences across multiple hardware platforms and form factors. Core Java PlatformDiscover the latest innovations in Java virtual machines. Get deep technical explanations in security and networking and enhancements that allow dynamic programming languages to drive Java platform adoption. Java EE Web Profile, Platform Technologies, Web Services, and the Cloud Update your knowledge on topics such as Web application development, persistence, security, and transactions. This track will also address modularity, enterprise caching, Web sockets, and internet identity. Mobile, Java Card, Embedded, and DevicesThis track is devoted to Java technology as the ultimate platform for mobile computing. It also covers embedded and device usages of Java technologies, including Java SE, Java ME, Java Card, and JavaFX. Share this event: #oracleRU

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  • ArchBeat Link-o-Rama for November 6, 2012

    - by Bob Rhubart
    OAM/OVD JVM Tuning | @FusionSecExpert Vinay from the Oracle Fusion Middleware Architecture Group (the infamous A-Team) shares a process for analyzing and improving performance in Oracle Virtual Directory and Oracle Access Manager. Architects Matter: Making sense of the people who make sense of enterprise IT Why do architects matter? Oracle Enterprise Architect Eric Stephens suggests that you ask yourself that question the next time you take the elevator to the Oracle offices on the 45th floor of the Willis Tower in Chicago, Illinois (or any other skyscraper, for that matter). If you had to take the stairs to get to those offices, who would you blame? "You get the picture," he says. "Architecture is essential for any necessarily complex structure, be it a building or an enterprise." (Read the article...) SOA Galore: New Books for Technical Eyes Only Shake up up your technical skills with this trio of new technical books from community members covering SOA and BPM. Thought for the Day "It goes against the grain of modern education to teach students to program. What fun is there to making plans, acquiring discipline, organizing thoughts, devoting attention to detail, and learning to be self critical?" — Alan Perlis (April 1, 1922 – February 7, 1990) Source: SoftwareQuotes.com

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  • Twitter Tuesday - Top 10 @ArchBeat Tweets - June 3-9, 2014

    - by OTN ArchBeat
    The Top 10 tweets from @OTNArchBeat for the last seven days. RT @DBAKevlar: #EM12c rel4 is out! Woohoo!! Jun 3, 2014 at 10:36 AM Top 10 Arch Community Articles for May 2014 >> props to @markrittman @kevin_mcginley @porushh et al Jun 4, 2014 at 12:52 PM Architecture of Analytics: @markrittman @kevin_mcginley >> Free OTN Virtual Tech Summit - July 9 Jun 4, 2014 at 09:13 AM My Top 10 Tweets - May 27 - June 2 #ADF #Essbase #FusionApps #Goldengate #Kscope14 #WebLogic. Jun 3, 2014 at 10:27 AM Starting and Stopping a #JavaEE Environment when using Oracle #WebLogic | Rene van Wijk #oracleace Jun 5, 2014 at 11:00 AM Video: #KScope14 Preview: @DebraLilley never stops moving, never stops learning. Jun 3, 2014 at 11:19 AM The OTNArchBeat Daily is out! Stories via @oraclebase Jun 9, 2014 at 01:47 PM Where did my MDB concurrency go? | Eric Gross #weblogic Jun 9, 2014 at 08:48 AM Exalogic Tech tips and code samples from A-Team architect Andrew Hopkinson Jun 6, 2014 at 11:47 AM The OTNArchBeat Daily is out! Stories via @KentGraziano @DBAKevlar @dbasolved Jun 3, 2014 at 01:48 PM adf, essbase,

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  • Choosing the Database Solution for Large Data Application

    - by GµårÐïåñ
    I have been tasked to write an application that will be a combination of document and inventory management in VB.net which will be used to store document images in TIFF, PDF, XPS, TXT, DOC, PPT and so on as binary data that can be retrieved for viewing, printing, and possible OCR to be searchable as well along with meta data such as sender, recipient, type of document, date, source, etc. So the table would probably be something like: DOC_NAME, DOC_DATE, NOTES, ... DOC_BINARY (where the actual document will be put inside) What my concern is finding a database solution that will not become unstable due to size restrictions, records limitations and performance. Some of the options are MS_SQL, SQL Express, SQLite, mySQL, and Access. Now I can pretty much eliminate Access right off the bat as it is just too limiting and not scalable. I can further eliminate SQL Express because of the 2 GB limit and again scalability. So that leaves me with MS_SQL, SQLite and mySQL (although if anyone has other options they think would be good as well, please feel free to share them, by no means am I set on these only). So this brings me to what you guys think is the best option for what I have described. The goal is that the data is all in one place (a single file) that will make backup and portability easier. For small volume usage, pretty much any solution will hold for a while, but my goal is to think ahead and make sure its able to withstand heavy large volume usage as well. Another consideration is also the interoperability with .NET and stability of such code to avoid errors and memory leaks. Your feedback would be greatly appreciated.

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  • Can T520+Bumblebee run an external monitor via DisplayPort?

    - by Fen
    Using 64-bit Ubuntu 11.10 and integrated (Intel) graphics, I can run the 1600x900 laptop display plus a 1600x1200 external monitor connected to the VGA adapter. But my external monitor is 1920x1200 so I have black stripes on each side. I believe the resolution is limited like this as the maximum resolution available from the Intel GPU is 2560x1600 = 4,096,000 pixels and I'm asking for a 3520x1200 = 4,224,000 display (with 1200x300 lost above the laptop screen). At 3200x1200 = 3,840,000 pixels, the Intel GPU seems happy. Under Windows, the same limit exists when using the VGA adapter, but if I turn Optimus on then I can connect the external monitor to the DisplayPort and get its full resolution and an extended desktop. I've seen that Bumblebee can run apps on the DisplayPort using the 'optirun' command. My question is: can Bumblebee run the DisplayPort in concert with the Intel card running the laptop screen creating a large virtual desktop (as on Windows)? If so, are there any pointers to how to do this? I tried once, failed, and dropped back to Integrated Graphics (and black stripes) as I could find no reports of this configuration working.

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  • Emulate Historical Figures i.e. Einstein - Is this possible using linguistic logic for my http://www.ustimeline.com Education System

    - by Johnnylight
    After hearing about the success of IBM's Watson I started thinking perhaps emulating human language is now possible? My goal is to create Virtual Historical characters to represent the main characters in my Adventur-Cation The Great American Adventure program such as Einstein or Crazy Horse. The goal is to build an intelligent system capable of indexing the internet and storing the data using a schema using modern knowledge on linguistic theory (phonemes, morphemes, syntax) to build a system capable to returning a semantically sound response very similar to the response made by the same person if still alive today. The goal would be to use the same engine/system for all characters. Each characters would have their own digital representation and voice, and would organize data differently based on tags/keywords stored about the individual. Imagine a Max Headroom Einstein. Based on the success of Watson, I believe something like this may now be possible. Would be an interesting way to study history and would be a vehicle of entertainment as well. Can anyone confirm if this has already been attempted? Is anyone interested in exploring this using Cognitive Science, Psychology, Artificial Intelligence, Historical data captured on the internet, and Linguistic theory?

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  • Basic Puppet installation with Solaris 11.2 beta

    - by user13366125
    At the recent announcement we talked a lot about the Puppet integration. But how do you set it up? I want to show this in this blog entry. However this example i'm using is even useful in practice. Due to the extremely low overhead of zones i'm frequently seeing really large numbers of zones on a single system. Changing /etc/hosts or changing an SMF service property on 3 systems is not that hard. Doing it on a system with 500 zones is ... let say it diplomatic ... a job you give to someone you want to punish. Puppet can help in this case making of managing the configuration and to ease the distribution. You describe the changes you want to make in a file or set of file called manifest in the Puppet world and then roll them out to your servers, no matter if they are virtual or physical. A warning at first: Puppet is a really,really vast topic. This article is really basic and it doesn't goes more than just even toe's deep into the possibilities and capabilities of Puppet. It doesn't try to explain Puppet ... just how you get it up and running and do basic tests. There are many good books on Puppet. Please read one of them, and the concepts and the example will get much clearer immediately. (more)

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  • Ubuntu 12.04 Very slow especially with Android Studio

    - by Dew
    I have an old laptop with the following specification: Memory: 485 MiB, Processor: Genuine intel CPU T2300 @ 1.66 GHz ×2, OS Type: 32 bit, Disk: 78.1 GB, I installed on it Ubuntu 12.04 LTS and I noticed that the overall system is very slow in responding. I tried to search about that in the internet and I found some articles talking about how to make Ubuntu 12.04 LTS run fast I applied all what they said including download LXDE desktop environment and then nothing different in the system response time. Then I need to develop some android applications so, I download Android Studio (Beta) 0.8.6. The problem became worse than before whenever I tried to open the Android Studio the screen is frozen for some minutes then it took time to download the projects and initialize the work space also, when I tried to move the cursor he is move very slowly. When I tried to run my first application on the AVD it took three hours and still not run yet. I delete the Android Studio and install it again several times, I was trying to solve the problem but still nothing change. Please if you have any suggestions that may help me make my laptop and Android Studio work faster I will appreciate it for you. Thank you in advance.

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  • How to start Sharepoint Development - Resources wanted [closed]

    - by user1249641
    I'm a apprentice for software development here in good ol' Germany and I've been doing fairly well with c#, asp.net mvc, entity framework and LINQ so far. My superiors want me to focus solely on our intranet development and Sharepoint development. They don't provide me with any resources to start. No books, no co-workers with actual webpart-dev-experience, seminars and the likes. There for it's do it on your own or die. I bought a book and started working through it on my virtual machine messing with the infrastructure and everything i can get a grip on. My main problem however stays the actual development. I have managed to write 2 webparts which can be used as a rudimentary ticket system(using WSP Builder and SP2007). But there it stops. Are there any comprehensive step by step tutorials or blogs out there, like the asp.net tutorials on www.asp.net which take you by the hand go over each step with you? Starting with the basic classes, going over custom css implementation, Jquery/Javascript ajax and async calls? No matter how trivial, I appreciate every help and hint you can give.

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  • WebLogic Partner Community Newsletter October 2013

    - by JuergenKress
    Dear WebLogic Partner Community member, Our October newsletter edition focuses on Oracle OpenWorld 2013, highlights, keynotes and all presentations. Thanks to all the partners who made the conference a huge success, if you could not come to San Francisco, you can find all the details in this newsletter. We added additional locations for the free hands-on ADF & ADF Mobile Bootcamps & WebLogic Bootcamps. As a community member you can also get a free voucher to become a WebLogic Server 12c Certified Implementation Specialist or ADF 11g Certified Implementation Specialist (limited to partners from EMEA!) If you can not make it to a Bootcamp, do not miss the virtual developer days for WebLogic and ADF Mobile. If you plan to install WebLogic read first the article “Setup a 12c Fusion Middleware Infrastructure from René van Wijk. If you administrate Middleware make sure you read the documentation and support notes Weblogic Server Patching & Maintenance Information Center. In the ADF section of the newsletter our product management team continues with the ADF Architecture on-demand training. Andrejus released the latest version of the ADF Performance Audit Tool v 2.0. The summer is over, if you look for a Christmas present, for your kids or yourself maybe you want to run Java on LEGO® Mindstorms® EV3. Jürgen Kress To read the newsletter please visit http://tinyurl.com/WebLogicNewsOctober2013 (OPN Account required) To become a member of the WebLogic Partner Community please register at 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. Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: WebLogic Community newsletter,newsletter,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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  • What relational database system should I learn? [closed]

    - by acidzombie24
    At the moment i know sqlite (my favorite), mysql (its ok, i get annoyed) and i do not want to learn ms/t sql (it only allows one nullable row if the column is unique). I am thinking about learning a new database system. My requirements for it is Must allow multiple connections at once (read and write) All or data i choose must be ACID compliant Performance should be good. I have a 17gb table in one project. It should perform well on read and transactional writes. With mysql it took hours to restore it and there were no foreign keys on that specific table. It only finished in a workday because i found a suggestion to adjust a setting which i think was key-buffer. And it still took hours Unique columns that allow more then one row to be null. I shouldn't have to say it but dammit MS. Allows one to make ongoing backups. Something like 'binary logs'. Some relatively small amounts of data i can grab and apply it to my local db to have it in sync with the one on the server. Table joins. I rather not write a bunch of queries to simulate a join What I would like but is not required Foreign keys. This may be a requirement later Open sourced Fair tool support. So i can measure queries, easily backup/restore, etc .NET and C (or C++) interface. (I seen one that uses raw tcp with JSON which was okish) Good subquery support. Once i was working with an older version of mysql (i believe <5.1 but it could have been 5.1) and i had to write many queries to do one query because it couldn't do subqueries. Or maybe it couldnt do it efficiently and died bc of memory limitations with a huge dataset. What db system should i learn?

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  • Writing generic code when your target is a C compiler

    - by enobayram
    I need to write some algorithms for a PIC micro controller. AFAIK, the official tools support either assembler or a subset of C. My goal is to write the algorithms in a generic and reusable way without losing any runtime or memory performance. And if possible, I would like to do this without increasing the development time much and compromising the readability and maintainability much either. What I mean by generic and reusable is that I don't want to commit to types, array sizes, number of bits in a bit field etc. All these specifications, IMHO, point to C++ templates, but there's no compiler for it for my target. C macro metaprogramming is another option, but, again my opinion, that greatly reduces readability and increases development time. I believe what I'm looking for is a decent C++ to C translator, but I'd like to hear anything else that satisfies the above requirements. Maybe a translator from another high-level language to C that produces very efficient code, maybe something else. Please note that I have nothing against C, I just wish templates were available in it.

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  • Booting off a ZFS root in 14.04

    - by RJVB
    I've been running a Debian derivative (LMDE) on a ZFS root for half a year now. It was created by cloning a regular ext4-based install with all the necessary packages onto a ZFS pool, chrooting into that pool and recreating a grub menu and bootloader. The system uses an ext-3 dedicated /boot partition. I would like to do the same with Ubuntu 14.04, but have encountered several obstacles. There is no Trusty zfs-grub package The default grub package doesn't have ZFS support built in. I found a small bug in the build system responsible for that (report with patch created) and built my own grub packages. The built-in ZFS support is dysfunctional, it does not add the proper arguments to the kernel command line I thus installed the ZoL grub package I also use on my LMDE system, which does give me a correct grub.cfg However, even with that correct grub.cfg, the boot process apparently doesn't retrieve the bootfs parameter from the ZFS pool; instead the variable that's supposed to receive the value remains empty. As a result, initrd tries to load the default pool ("rpool"), which fails of course. I can however import the pool by hand, and complete the process by hand. If memory serves me well, I also had to disable apparmor, to avoid the boot process from blocking after importing the pool. Am I overlooking something? Just for comparison, I installed the Ubuntu 3.13 kernel on my LMDE system, and that works just fine (i.e. the identical kernel and grub binaries allow successful booting without glitches on LMDE but not on Ubuntu).

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  • error: no such partition after 11.10 upgrade to 12.04

    - by Alan King
    -I recently upgraded my 11.10 install to 12.04 LTS and got the above error message upon reboot after a GNU GRUB version ubuntu3 display showing Ubuntu 3.2.0-23-generic pae and other kernels or memory tests to choose from. The upgrade had to be done by CD because the Update Manager did not show the 12.04 upgrade option. After selecting the default install option of upgrading 11.10 to 12.04, I was presented with a screen saying that I had not specified a swap partition. Upon selection the 'back' key, I was taken to a partition page which listed two current partitions (only Ubuntu 11.10 had been installed - no Windoz): an ext4 partition plus a small 1.8GB partition. I double clicked the small partition and selected it as the swap partition even though I wondered at the time why this even came up. I can see the two user folders under home from the file manager screen while runnning 12.04 from the CD but if I try to access either one an error message is displayed saying I do not have permission while I get a loading message in the lower right corner of the window that does not go away. I have two questions: Can I access the user folders prior to recovery via the Terminal? If so, how? How do I fix the GRUB issue?

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  • How can I disable the purple bootloader splash at boot?

    - by wim
    This question has been answered before, but neither of the methods in the accepted answer worked for me on 11.10. First I tried editing in /etc/default/grub, and then running sudo update-grub. But after that I still got a blank, plain, purple screen while the kernel is loading. The screen has no boot options, and it obscures those dmesg that I want to see going in the terminal. Next I tried removing the plymouth-theme-*, but that just broke my gnome-shell theme looks, and the purple screen still remains. I have also tried configuring it with startupmanager package, but nothing seems to get rid of that darned purple splash. here are the contents of my /etc/default/grub file: # If you change this file, run 'update-grub' afterwards to update # /boot/grub/grub.cfg. # For full documentation of the options in this file, see: # info -f grub -n 'Simple configuration' GRUB_DEFAULT="0" GRUB_HIDDEN_TIMEOUT="0" GRUB_HIDDEN_TIMEOUT_QUIET="true" GRUB_TIMEOUT="0" GRUB_DISTRIBUTOR="`lsb_release -i -s 2> /dev/null || echo Debian`" #GRUB_CMDLINE_LINUX_DEFAULT="" GRUB_CMDLINE_LINUX_DEFAULT="" GRUB_CMDLINE_LINUX="" # Uncomment to enable BadRAM filtering, modify to suit your needs # This works with Linux (no patch required) and with any kernel that obtains # the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...) #GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef" # Uncomment to disable graphical terminal (grub-pc only) # GRUB_TERMINAL="console" # The resolution used on graphical terminal # note that you can use only modes which your graphic card supports via VBE # you can see them in real GRUB with the command `vbeinfo' #GRUB_GFXMODE="640x480" # Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux #GRUB_DISABLE_LINUX_UUID="true" # Uncomment to disable generation of recovery mode menu entries #GRUB_DISABLE_RECOVERY="true" # Uncomment to get a beep at grub start #GRUB_INIT_TUNE="480 440 1" GRUB_DISABLE_OS_PROBER="true"

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  • How to configure background image to be at the bottom OpenGL Android

    - by Maxim Shoustin
    I have class that draws white line: public class Line { //private FloatBuffer vertexBuffer; private FloatBuffer frameVertices; ByteBuffer diagIndices; float[] vertices = { -0.5f, -0.5f, 0.0f, -0.5f, 0.5f, 0.0f }; public Line(GL10 gl) { // a float has 4 bytes so we allocate for each coordinate 4 bytes ByteBuffer vertexByteBuffer = ByteBuffer.allocateDirect(vertices.length * 4); vertexByteBuffer.order(ByteOrder.nativeOrder()); // allocates the memory from the byte buffer frameVertices = vertexByteBuffer.asFloatBuffer(); // fill the vertexBuffer with the vertices frameVertices.put(vertices); // set the cursor position to the beginning of the buffer frameVertices.position(0); } /** The draw method for the triangle with the GL context */ public void draw(GL10 gl) { gl.glEnableClientState(GL10.GL_VERTEX_ARRAY); gl.glVertexPointer(2, GL10.GL_FLOAT, 0, frameVertices); gl.glColor4f(1.0f, 1.0f, 1.0f, 1f); gl.glDrawArrays(GL10.GL_LINE_LOOP , 0, vertices.length / 3); gl.glLineWidth(5.0f); gl.glDisableClientState(GL10.GL_VERTEX_ARRAY); } } It works fine. The problem is: When I add BG image, I don't see the line glView = new GLSurfaceView(this); // Allocate a GLSurfaceView glView.setEGLConfigChooser(8, 8, 8, 8, 16, 0); glView.setRenderer(new mainRenderer(this)); // Use a custom renderer glView.setBackgroundResource(R.drawable.bg_day); // <- BG glView.setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY); glView.getHolder().setFormat(PixelFormat.TRANSLUCENT); How to get rid of that?

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