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• What are some good tips for a developer trying to design a scalable MySQL database?

  - by CFL_Jeff

  As the question states, I am a developer, not a DBA. I have experience with designing good ER schemas and am fairly knowledgeable about normalization and good schema design. I have also worked with data warehouses that use dimensional modeling with fact tables and dim tables. However, all of the database-driven applications I've developed at previous jobs have been internal applications on the company's intranet, never receiving "real-world traffic". Furthermore, at previous jobs, I have always had a DBA or someone who knew much more than me about these things. At this new job I just started, I've been asked to develop a public-facing application with a MySQL backend and the data stored by this application is expected to grow very rapidly. Oh, and we don't have a DBA. Well, I guess I am the DBA. ;) As far as designing a database to be scalable, I don't even know where to start. Does anyone have any good tips or know of any good educational materials for a developer who has been sort of shoved into a DBA/database designer role and has been tasked with designing a scalable database to support an application like this? Have any other developers been through this sort of thing? What did you do to quickly become good at this role? I've found some good slides on the subject here but it's hard to glean details from slides. Wish I could've attended that guy's talk. I also found a good blog entry called 5 Ways to Boost MySQL Scalability which had some good information, though some of it was over my head. tl;dr I just want to make sure the database doesn't have to be completely redesigned when it scales up, and I'm looking for tips to get it right the first time. The answer I'm looking for is a "list of things every developer should know about making a scalable MySQL database so your application doesn't perform like crap when the data gets huge".

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• I am not the most logically-organized person. Do I have any chance at being a good 'low-level' programmer?

  - by user217902

  Background: I am entering college next year. I really enjoy making stuff and solving logical problems, so I'm thinking of majoring in compsci and working in software development. I hope to have the kind of job where I can work with implementing / improving algorithms and data structures on a regular basis.. as opposed to, say, a job that's purely concerned with mashing different libraries together, or 'finding the right APIs for the job'. (Hence the word 'low-level' in the title. No, I don't wish to write assembly all day.) Thing is, I've never been the most logically-sharp person. Thus far I have only worked on hobby projects, but I find that I make the silliest of errors ever so often, and it can take me ages to find it. Like anywhere between three hours to a day to locate a simple segfault, off-by-one error, or other logical mistake. (Of course, I do other things in the meantime, like browsing SO, reddit, and the like..) It's not like I'm 'new' to programming either; I first tried C++ maybe five years ago. My question is: is this normal? Should a programmer with any talent solve it in less time? Having read Spolsky's Smart and gets things done, where he talks about the large variance in programming speed, am I near the bottom of the curve, and therefore destined to work in companies that cannot afford to hire quality programmers? I'd like to think that conceptually I'm okay -- I can grasp algorithms and concepts pretty well, I do fine in math and science, although I probably drop signs in my equations more often than the next guy. Still, grokking concepts makes me happy, and is the reason why I want to work with algorithms. I'm hoping to hear from those of you with real-world programming experience. TL;DR: I make many careless mistakes, should I not consider programming as a career?

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• Problems after installing a plethora of updates

  - by box

  yesterday I decided to install 32-bit Ubuntu on my 64-bit desktop, first of all, is that a problem? After installing, i had around 270 updates to install, according to the update manager. I was having trouble launching a game with WINE, so I thought updating might help. After updating, I restarted my computer, and after a long while it showed me my desktop and the icon's on it, but I didn't get anything else. I didn't have the "taskbar" (not sure what it's called, sue me) on the left side, nor the bar at the top. I also received an error message saying some program had stopped working. I decided to restart my computer again, and that was when it told me that i have to re-configure my drivers, or run in "Low Graphics" mode for one session, amongst other options. Well, I decided to try to revert to the "basic video drivers", which was an option it gave. Restarting the computer gave me the same problem as in the second paragraph. After a few more restarts and a night of restless sleep, here I am trying to start my computer again, only to receive a black screen, and my monitor "going to sleep". I'm sort of stumped here, being new to Ubuntu (desktop, at least) and I really hope this gets fixed without me having to install Ubuntu on yet another partition (I have three other partitions for various things already) tl;dr: Black screen on boot after installing updates.

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• Should one use a separate database for application data and user data?

  - by trycatch

  I’ve been working on a project for a little while and I’m unsure which is the better architecture. I’m interested in the consensus. The answer to me seems fairly obvious but something about it is digging at me and I can't pick out what. The TL;DR is: how do you handle a program with application data and user data in the same DB which needs to be able to receive updates to the application data periodically? One database for user data and one for application, or both in one? The detailed version is.. if an application has a database which needs to maintain application data AND user data, and the user data all references application data, it feels more natural to me to store them in the same database. But if there exists a need to be able to update the application data within this database periodically, should this be stripped into two databases so that one can simply download the updated application data database file as an update and replace the old one? Or should they remain as one database, and the application data be updated via a script which inserts the new data into the existing database? The second sounds clearly preferable to me... but for some reason just doesn’t feel right, and I can't pick out quite why.

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• Book Giveaway: We Have 10 Free Copies of the 4-Hour Chef (The Simple Path to Cooking Like a Pro, Learning Anything, and Living the Good Life)

  - by The Geek

  The 4-Hour Chef isn’t just a cookbook. It’s a choose-your-own-adventure guide to the world of rapid learning from the best-selling author of the 4-Hour Workweek, and we’ve got 10 free copies for How-To Geek readers. Want more information? Here’s the description of the book, from the Amazon page. The 4-Hour Chef is a five-stop journey through the art and science of learning: 1. META-LEARNING. Before you learn to cook, you must learn to learn. META charts the path to doubling your learning potential. 2. THE DOMESTIC. DOM is where you learn the building blocks of cooking. These are the ABCs (techniques) that can take you from Dr, Seuss to Shakespeare. 3. THE WILD. Becoming a master student requires self-sufficiency in all things. WILD teaches you to hunt, forage, and survive. 4. THE SCIENTIST. SCI is the mad scientist and modernist painter wrapped into one. This is where you rediscover whimsy and wonder. 5. THE PROFESSIONAL. Swaraj, a term usually associated with Mahatma Gandhi, can be translated as “self-rule.” In PRO, we’ll look at how the best in the world become the best in the world, and how you can chart your own path far beyond this book. Still not sold? There’s more information and pictures over on the Amazon page for the book. The 4-Hour Chef: The Simple Path to Cooking Like a Pro, Learning Anything, and Living the Good Life Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary

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• The Increasing Focus on Architecture

  - by Bob Rhubart

  If you follow my updates on Twitter or on the OTN ArchBeat page on Facebook you have probably noticed that I'm a regular reader of Joe McKendrick's SOA blog on ZDNet. Usually I'm content to simply share a link on my social networks when I find one of McKendrick's posts interesting. But with a recent post, In the cloud era, let's start calling IT what it is: 'Innovation Team', McKendrick hit on a point that warrants more than a quick link: "IT is no longer just a department full of people who code, build and maintain systems. IT is the business partner that plans and strategizes what types of technology solutions the business needs to move forward." Of course, what McKendrick is describing is an increased focus on architecture. Assuming that McKendrick's assessment is correct — and I do — that expanding focus, from coding, building, and maintaining systems to planning and strategizing technology solutions that serve the business, isn't limited to the organizational level. The individual roles within the IT organization will also have to shift to a more broadly architectural mindset. McKendrick's post references Dr. Irving Wladawsky-Berger's assessment of cloud computing as a critical "third model" of computing to emerge in the 50-year history of Information Technology. As computing itself evolves, the underlying roles that make computing possible must evolve accordingly. That evolution will be defined by an increased focus on architecture.

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• Is there a formula for this?

  - by Gortron

  TL/DR: Any way to work out if known numbers between a known start and ending figure should be positive or negative numbers? I am developing an application in PHP which can import and read PDFs. The PDFs are financial ones such as bank statements with records of transactions in and out of a bank account. I only have PDFs to work with, no other formats such as CSV unfortunately. I convert the PDF to HTML using pdftohtml and start parsing the data, the intended end result is an array of transactions. So far I have it working smoothly collecting dates, descriptions and balance. Converting the XML instead doesn't help. There are other pieces of transcriptional data such as debit or credit amounts. In the PDF, the credit amount is in one column and the debit amount is in another column so it is quite clear in the PDF. However, when converted to HTML, the formatting is lost and therefor I don't know if the amount was a credit or debit amount. So, my question is, given a starting balance and an ending balance and several known figures in between, is it possible for a programme to work out if those known figures in between are credit or debit amounts? I imagine there could potentially be several combinations of those known values to reach the ending balance so I'd like to apply a formula to return the correct credit/debit sequence only if its the only possible solution. If there are several ways of adding/subtracting the known values to reach the end balance, I can ask the user to look at it manually but I'd like to keep this to a minimum if possible. Possible to do, do you think? Thank you in advance for any help.

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• How to run sudo command with no password?

  - by aychedee

  tl;dr: How does the ubuntu user on the AWS images for Ubuntu Server 12.04 have passwordless sudo for all commands when there is no configuration for it in `/etc/sudoers'? I'm using Ubuntu server 12.04 on Amazon. I want to add a new user that has the same behaviour as the default ubuntu user. Specifically I want passwordless sudo for this new user. So I've added a new user and went to edit /etc/sudoers (using visudo of course). From reading that file it seemed like the default ubuntu user was getting it's passwordless sudo from being a member of the admin group. So I added my new user to that. Which didn't work. Then I tried adding the NOPASSWD directive to sudoers. Which also didn't work. Anyway, now I'm just curious. How does the ubuntu user get passwordless privileges if they aren't defined in /etc/sudoers. What is the mechanism that allows this?

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• How often do you look for code examples?

  - by Newly Insecure

  I am a comp sci student with several years of experience in C and C++, and for the last few years I've been constantly working with Java/Objective C doing app dev and now I have switched to web dev and am mainly focused on ruby on rails and I came to the realization that (as with app dev, really) I reference other code wayyyy too much. I constantly google functionality for lots of things I imagine I should be able to do from scratch and it's really cracked my confidence a bit. Basic fundamentals are not an issue, I hate to use this as an example but I can run through javabat in both java/python at a sprint - obviously not an accomplishment and but what I mean to say is I have a strong base for the fundamentals I think? I was wondering how often you guys reference other code and does it just boil down to a lack of memorization of intricate tasks on my part? I know what I need to use typically but reference syntax constantly. Would love some advice and input on this, as it has been holding me back pretty solidly in terms of looking for work in this field even though I'm finishing my degree. My main reason for asking is not really about employment, but more that I don't want to be the only guy at a hackathon not hammering out nonstop code and sitting there with 20 google/github tabs open, and I have refrained from attending any due to a slight lack of confidence... tl;dr: I google for code examples for basically ALL semi advanced/advanced functionality, how to fix this and do you do as well?

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• Files in /home deleted

  - by long-time user....2006

  In the most specific, unemotional terms: Reinstalled os, using 11.10(1 month after release to skip initial issues that usually crop up). Configured system to my specifications(just ways of organizing config files, etc). Log out Log back in after after an hour or so...to find my home directory obliterated and just a few skeleton files existing. think oh well, try again (this has happened before with an install for reasons I've never been able to pinpoint, usually around install time with some sort of update but its never been a major recurring issue) same thing happens I thought something was awry, so I reinstalled again (another 20 minutes, meh) Set up system, arranged home directory a bit differently thinking maybe I tread on something I shouldn't have. log out, come back --- the same thing. Most of the directories I added were deleted (e.g. .xmonad which links to xmonad.hs in my portable config directory) tl;dr every change I make in my home directory gets deleted. The emotional part: UNACCEPTABLE. I need to configure my system the way I want, not get punched in the face everytime I make a change. I'll willingly fill in details as needed, this was just a start to see if anyone can help, I've found no trace of this issue in a search.

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• Offsite Backup

  - by Grant Fritchey

  There was a recent weather event in the United States that seriously impacted our power grid and our physical well being. Lots of businesses found that they couldn’t get to their building or that their building was gone. Many of them got to do a full test of their disaster recovery processes. A big part of DR is having the ability to get yourself back online in a different location. Now, most of us are not going to be paying for multiple sites, but, we need the ability to move to one if needed. The best thing you can to start to set this up is have an off-site backup. Want an easy way to automate that? I mean, yeah, you can go to tape or to a portable drive (much more likely these days) and then carry that home, but we’ve all got access to offsite storage these days, SkyDrive, DropBox, S3, etc. How about just backing up to there? I agree. Great idea. That’s why Red Gate is setting up some methods around it. Want to take part in the early access program? Go here and try it out.

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• How to automatically mount a folder and change ownership from root in virtualbox

  - by Fiztban

  It is my first time using virtualbox and ubuntu (14.04), I am on a host Windows 7 OS. I am trying to mount a shared folder that has files I need to access both in the virtualbox and on the windows OS. I have successfully mounted them using the vboxsf from the Guest Additions installed. To mount I used the command sudo mount -t vboxsf <dir name in vbox> <directory in linux for example I used sudo mount -t vboxsf Test /home/user/Test I found several ways of mounting the directories automatically upon startup using for example the /etc/rc.local method (here) where you modify said file appending the command to it (without sudo). Or by using the fstab method (here). I prefer the rc.local method personally. Once mounted it has permissions dr-xr-xr-x however once mounted the directory is of root ownership and chown user /home/user/Test has no effect. This means I cannot make or change files in it as a normal user. In the VirtualBox the directory to be shared is not set as read-only. Is there a way to automatically mount the shared folder and assign ownership to my non root user?

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• Rectangular Raycasting?

  - by igrad

  If you've ever played The Swapper, you'll have a good idea of what I'm asking about. I need to check for, and isolate, areas of a rectangle that may intersect with either a circle or another rectangle. These selected areas will receive special properties, and the areas will be non-static, since the intersecting shapes themselves will also be dynamic. My first thought was to use raycasting detection, though I've only seen that in use with circles, or even ellipses. I'm curious if there's a method of using raycasting with a more rectangular approach, or if there's a totally different method already in use to accomplish this task. I would like something more exact than checking in large chunks, and since I'm using SDL2 with a logical renderer size of 1920x1080, checking if each pixel is intersecting is out of the question, as it would slow things down past a playable speed. I already have a multi-shape collision function-template in place, and I could use that, though it only checks if sides or corners are intersecting; it does not compute the overlapping area, or even find the circle's secant line, though I can't imagine it would be overly complex to implement. TL;DR: I need to find and isolate areas of a rectangle that may intersect with a circle or another rectangle without checking every single pixel on-screen.

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• ??????????·????????????Oracle Solaris Cluster 4.0?

  - by kazun

  ??????OS?Oracle Solaris 11???????????????·????????????Oracle Solaris Cluster 4.0???2011?12?6????????????Oracle Solaris 11 ???????????????????????????Oracle Solaris Cluster 4.0 ???????????????????????? Oracle Solaris Cluster 4.0 ?3?????? - Oracle Solaris Cluster ???????????????????????????????????????????????? - Oracle Solaris 11 ?????? - Oracle Solaris Cluster 4.0?????????????????????????????????????? Oracle Solaris Cluster 4.0?? Oracle Solaris Cluster? Oracle Solaris ??????????????????????????????????????(HA)??????·????(DR)????????? Oracle Solaris 11 ??????????????? Oracle Solaris 11 Image Packaging System (IPS)???????????????????????????????????????????????????????? Oracle Solaris 11 ?????????(Automated Installer)????Oracle Solaris???Oracle Solaris Cluster????????????????????????? Oracle Solaris 11??????? Oracle Solaris 11 Zone Cluster ?????????????????????????????Solaris 11 native ??????????????????????????????????????????????????? ?????????????????????????????????????????Solaris 10 ???? Solaris 11 native ????????? Oracle VM Server for SPARC 2.1????????? ?:Zone Cluster (?)?Failover Zone(?)???? ?????·?????? Oracle Solaris Cluster Geographic Edition ?????????????????????·????????????? ?????????????????????????????????/?????????????????????? Oracle Data Guard(Oracle ?????? 11.2.0.3 ?????)?Availability Suite Feature of Oracle Solaris(Oracle Solaris 11 SRU1 ?????)?Oracle Solaris Cluster Geographic Edition script-based plug-ins?????????·??????????????????? ?:?????·???? ?????????????? Oracle Solaris Cluster 4.0??Apache?Apache Tomcat?DHCP?DNS?NFS???Oracle Solaris 11?????????Oracle Database 11g(?????????????Oracle Real Application Clusters)?Oracle WebLogic Server???????·???????????????·????????????????????????????????????????????????API??????????????????? Oracle Solaris Cluster 4.0??????????????????????????????????????????????????? ??????????? IPS ?????(???????? 30 ??????) Oracle Software Delivery Cloud (IPS?????????) (???? (??????????) ???? 30 ??????) OTN (IPS?????????)(?????????? ) ?????? ??????????????????? ???? Oracle Solaris Cluster Oracle Solaris Oracle's Sun Server and Storage Systems ???? Oracle Solaris Cluste Oracle Solaris ?Oracle Solaris Cluster Oasis?Blog

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• XNA Notes 008

  - by George Clingerman

  This week has been a rough one. I’ve been sick and then in some kind of slump for my afternoon coding sessions. It could be from the cold, could be I’m still tired from writing that Windows Phone 7 game development book (which is out now!) or it could just be I’m tired of winter and want some sunshine. All I know is that even while I’m stick, the XNA world keeps going along at it’s whirlwind pace. Below are the things I caught in between my coughing fits.. Time Critical XNA News: The 2011 MVP summit is almost here so pass along your feelings and thoughts so the MVPs can take them and share them with the team in person http://forums.create.msdn.com/forums/p/76317/464136.aspx#464136 Dream Build Play - there’s no new announcement yet, but you can’t get much more to the end of February than this! http://www.dreambuildplay.com/Main/Home.aspx XNA Team: Dean Johnson from the XNA team shares an excellent way of handling Guide.IsTrialMode on WP7 http://blogs.msdn.com/b/dejohn/archive/2011/02/21/calling-guide-istrialmode-on-windows-phone-7.aspx Nick Gravelyn tries a new tactic in deciding if there’s enough interest to develop a sequel or not. Don’t YOU want Pixel Man 2 to come out? http://nickgravelyn.com/pixelman2/ XNA MVPs: Andy “The ZMan” Dunn finally shares what he’s been secretly working on these past 4 months http://twitter.com/#!/The_Zman/status/40590269392887808 http://www.youtube.com/watch?v=Rg8Z0ZdYbvg&feature=youtu.be Joel Martinez lets developers around NYC know they should by signing up for Game Hack Day http://twitter.com/joelmartinez/statuses/41118590862102528 http://gamehackday.org/71fdk XNA Developers: Michael McLaughlin shares an XNA RenderTarget2D Sample http://geekswithblogs.net/mikebmcl/archive/2011/02/18/xna-rendertarget2d-sample.aspx Martin Caine starts a new series on Deferred Rendering in XNA 4.0 http://twitter.com/#!/MartinCaine/status/39735221339291648 http://martincaine.com/xna/deferred_rendering_in_xna_4_introduction ElemenyCy posts about his fun time with the IntermediateSerializer http://www.ubergamermonkey.com/xna/holy-bloated-xml-batman/ Ben Kane releases a narrated dev diary video for Project Splice. Let him know if you’d like to see more! (I know I do!) http://twitter.com/#!/benkane/status/39846959498002432 http://www.youtube.com/watch?v=1EmziXZUo08&feature=youtu.be Jason Swearingen (of Novaleaf) posts his part 1 of Spatial Partitioning solutions http://altdevblogaday.org/2011/02/21/spatial-partitioning-part-1-survey-of-spatial-partitioning-solutions/ Brian Lawson of Dark Flow Studios shares what his been up to lately with lots of pretty screenshots and hints of announcements from Microsoft... http://www.darkflowstudios.com/entry/short-and-sweet-part-1 Luke Avery starts a new blog where he plans on making XNA tutorials for beginners (and he’s got a few started already!) http://programmingwithovery.wordpress.com/ Xbox LIVE Indie Games (XBLIG): GameMarx Episode 10 http://www.gamemarx.com/video/the-show/24/ep-10-february-18-2010.aspx Minecraft clone FortressCraft coming to XBLIG http://www.eurogamer.net/articles/2011-02-23-minecraft-clone-fortresscraft-hits-xblig ezMuze+ starts an IndieGoGo fundraiser campaign to help fund their second game and get it onto even more devices! http://www.indiegogo.com/ezmuze Gamergeddon XBLIG round up http://www.gamergeddon.com/2011/02/20/xbox-indie-game-round-up-february-20th/?utm_campaign=twitter&utm_medium=twitter&utm_source=twitter JForce Games loses their Ego http://jforcegames.com/blog/index.php?itemid=121&catid=4 XNA Game Development: @BallerIndustry reminds all XNA developers that the Maths are important ;) http://twitter.com/#!/BallerIndustry/status/39317618280243200 http://www.youtube.com/watch?v=MjV3XDFsjP4&feature=player_embedded#at=106 @suhinini stumbles on an older but extremely useful post on XNA Content Pipeline debugging http://twitter.com/#!/suhinini/status/39270189476352000 http://badcorporatelogo.wordpress.com/2010/10/31/xna-content-pipeline-debugging-4-0/ XNA Game Development Workshops at Singapore Universities http://innovativesingapore.com/2011/02/xna-game-development-workshops-at-singapore-universities/ Indiefreaks announces that IGF v0.3 is out with Xbox 360 support, SunBurn 2.0.12 and it’s now Open Source! http://twitter.com/#!/indiefreaks/status/39391953971982336 @liotral announces a new series on properly designing a game http://twitter.com/#!/liortal53/status/39466905081217024 http://liortalblog.wordpress.com/2011/02/20/hello-cosmos/ Indies and XNA at CodeStock 2011 http://www.gamemarx.com/news/2011/02/20/indies-and-xna-at-codestock-2011.aspx Train Frontier Express posts about XNA Content Hotloading http://trainfrontierexpress.blogspot.com/2011/02/xna-content-hotloading-overview.html Slyprid announces a new character editor in Transmute http://twitter.com/#!/slyprid/status/40146992818696192 http://www.youtube.com/watch?v=OKhFAc78LDs&feature=youtu.be The XNA 2D from the ground up tutorial series http://xna-uk.net/blogs/darkgenesis/archive/2011/02/23/recap-the-xna-2d-from-the-ground-up-tutorial-series.aspx Sgt.Conker posts a “Clingerman” (hey that’s me!) to stay relevant http://www.sgtconker.com/2011/02/posting-a-clingerman-to-stay-relevant/

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• Data Quality and Master Data Management Resources

  - by Dejan Sarka

  Many companies or organizations do regular data cleansing. When you cleanse the data, the data quality goes up to some higher level. The data quality level is determined by the amount of work invested in the cleansing. As time passes, the data quality deteriorates, and you need to repeat the cleansing process. If you spend an equal amount of effort as you did with the previous cleansing, you can expect the same level of data quality as you had after the previous cleansing. And then the data quality deteriorates over time again, and the cleansing process starts over and over again. The idea of Data Quality Services is to mitigate the cleansing process. While the amount of time you need to spend on cleansing decreases, you will achieve higher and higher levels of data quality. While cleansing, you learn what types of errors to expect, discover error patterns, find domains of correct values, etc. You don’t throw away this knowledge. You store it and use it to find and correct the same issues automatically during your next cleansing process. The following figure shows this graphically. The idea of master data management, which you can perform with Master Data Services (MDS), is to prevent data quality from deteriorating. Once you reach a particular quality level, the MDS application—together with the defined policies, people, and master data management processes—allow you to maintain this level permanently. This idea is shown in the following picture. OK, now you know what DQS and MDS are about. You can imagine the importance on maintaining the data quality. Here are some resources that help you preparing and executing the data quality (DQ) and master data management (MDM) activities. Books Dejan Sarka and Davide Mauri: Data Quality and Master Data Management with Microsoft SQL Server 2008 R2 – a general introduction to MDM, MDS, and data profiling. Matching explained in depth. Dejan Sarka, Matija Lah and Grega Jerkic: MCTS Self-Paced Training Kit (Exam 70-463): Building Data Warehouses with Microsoft SQL Server 2012 – I wrote quite a few chapters about DQ and MDM, and introduced also SQL Server 2012 DQS. Thomas Redman: Data Quality: The Field Guide – you should start with this book. Thomas Redman is the father of DQ and MDM. Tyler Graham: Microsoft SQL Server 2012 Master Data Services – MDS in depth from a product team mate. Arkady Maydanchik: Data Quality Assessment – data profiling in depth. Tamraparni Dasu, Theodore Johnson: Exploratory Data Mining and Data Cleaning – advanced data profiling with data mining. Forthcoming presentations I am presenting a DQS and MDM seminar at PASS SQL Rally Amsterdam 2013: Wednesday, November 6th, 2013: Enterprise Information Management with SQL Server 2012 – a good kick start to your first DQ and / or MDM project. Courses Data Quality and Master Data Management with SQL Server 2012 – I wrote a 2-day course for SolidQ. If you are interested in this course, which I could also deliver in a shorter seminar way, you can contact your closes SolidQ subsidiary, or, of course, me directly on addresses [email protected] or [email protected]. This course could also complement the existing courseware portfolio of training providers, which are welcome to contact me as well. Start improving the quality of your data now!

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• Oracle User Communities and Enterprise Manager

  - by Anand Akela

  Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Cambria","serif"; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin;} Contributed by Joe Dimmer, Senior Business Development Manager, Oracle Enterprise Manager Heightened interest and adoption of Oracle Enterprise Manager has led to keen interest in “manageability” within the user group community.  In response, user groups are equipping their membership with the right tools for implementation and use manageability through education opportunities and Special Interest Groups.  Manageability is increasingly viewed not only as a means to enable the Oracle environment to become a competitive business advantage for organizations, but also as a means to advance the individual careers of those who embrace enterprise management.  Two Oracle user groups – the Independent Oracle User Group (IOUG) and the United Kingdom Oracle User Group (UKOUG) – each have Special Interest Groups where manageability is prominently featured.  There are also efforts underway to establish similarly charted SIGs that will be reported in future blogs.  The good news is, there’s a lot of news! First off, the IOUG will be hosting a Summer Series of live webcasts:  “Configuring and Managing a Private Cloud with Enterprise Manager 12c” by Kai Yu of Dell, Inc.              Wednesday, June 20th from Noon – 1 PM CDT , Click here for details & registration “What is User Experience Monitoring and What is Not? A case study of Oracle Global IT’s implementation of Enterprise Manager 12c and RUEI” by Eric Tran Le of Oracle            Wednesday, July 18th from Noon – 1 PM CDT , Click here for details & registration “Shed some light on the ‘bumps in the night’ with Enterprise Manager 12c” by David Start of Johnson Controls            Wednesday, August 22nd from Noon – 1 PM CDT, Click here for details & registration   In addition, the UKOUG Availability and Infrastructure Management (AIM) SIG is hosting its next meeting on Tuesday, July 3rd at the Met in Leeds where EM 12c Cloud Management will be presented.  Click here for details & registration.  In future posts from Joe, look for news related to the following: ·         IOUG Community Page and Newsletter devoted to manageability ·         Full day of manageability featured during Oracle OpenWorld 2012 “SIG Sunday” ·         Happenings from other regional User Groups that feature manageability Stay Connected: Twitter |  Face book |  You Tube |  Linked in |  Newsletter

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• Retail CEO Interviews

  - by David Dorf

  Businessweek's 2012 Interview Issue has interviews with three retail CEOs that are worth a quick read.  I copied some excerpts below, but please follow the links to the entire interviews. Ron Johnson, CEO JCPenney Take me through your merchandising. One of the things I learned from Steve [Jobs]—Steve said three times in his life he had the chance to be part of the change of an interface. If you change the interface, you can dramatically change the entire experience of the product. For Steve, that was the mouse, the scroll wheel on the iPod, and then the [touch]screen. What we’re trying to do here is change the interface of retail. What we call that is the street, and you’re standing in the middle of it. When you walk into a store today, you’re overwhelmed by merchandise. There is a narrow aisle. Typically, it’s filled with product on tables and you’re overwhelmed with the noise of signs and promotions. Especially in the age of the Internet, the idea of going to a very large store and having so much abundance is actually not very appealing. The first thing you find here is you’re inspired. I have used the mannequins. The street is actually this new navigation path for a retail store. So if you come in here—you’ll notice that these aisles are 14 feet wide. These are wider than Nordstrom’s (JWN). Slide show of JCPenney store. Walter Robb, co-CEO Whole Foods What did you learn from the recent recession about selling groceries?It was a lot of humble pie, because our sales experienced a drop that I have never seen in 32 years of retail. Customers left us in droves. We also learned that there were some very loyal customers who loved Whole Foods (WFM), people who said, “I like what you stand for. I like coming here. I like this experience.” That was very affirming. I think the realization was that we’ve got some customers, and we need to make sure we know who they are. So instead of chasing every customer out there, we started doing customer discussion groups. We were growing for growth’s sake, which is not a good strategy. We were chasing the rainbow. We cut the growth in half overnight and said, “All right, slow down. Let’s make sure we’re doing this better and more thoroughly and more thoughtfully.” This company is a mission-based company. This company started to change the world by bringing healthier food to the world. It’s not about the money, it’s about the impact, and this company is back on track as a result of those experiences. Video of Whole Foods store tour. Kay Krill, CEO Ann Taylor You’ve worked in retail all your life. What drew you to it?I graduated from college, and I did not know what I wanted to do. Macy’s (M) came to campus to interview for their training program, and I thought, “Let me give it a try.” I got the job and fell in love with the industry. The president of Macy’s at the time said, “If you don’t wake up every morning dying to go to work, then retailing is not for you; it has to be in your blood.” It was in my blood. I love the fact that every day is different. You can get to be creative one day, financial the next day, marketing the next. I love going to stores. I love talking to associates. I love talking to clients. There’s not a predictable day.

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• Today's Links (6/30/2011)

  - by Bob Rhubart

  James Gosling Says He Doesn't Care About Java But here's the rest of the story: "What I really care about is the Java Virtual Machine as a concept," says Gosling, "because that is the thing that ties it all together; it's the thing that makes Java the language possible; it's the thing that makes things work on all kinds of different platforms; and it makes all kinds of languages able to coexist." Virtual Developer Day: SOA Accelerate Your Development with Oracle SOA Suite. Learn how in this FREE on-line workshop with Hands-on labs July 12th 9 am to 1:30 PM PST" July 12th 9 am to 1:30 PM PST Podcast: Toronto Architect Day Panel Discussion Part 3 (of 4) is now available, in which the panel (including Oracle ACE Director Cary Millsap and InfoQ editor and co-founder Floyd Marinescu) discusses public vs private cloud as the best strategy for small businesses and start-ups. WebLogic Weekly for June 27th, 2011 | James Bayer Bayer shares the latest resources for those with WebLogic on the brain. Griffiths Waite at Oracle Open World | Mark Simpson Oracle ACE Director Mark Simpson share information on the presentations he's scheduled to give at Oracle OpenWorld San Francisco 2011. Kscope Solid Service Bus Implementations Peter Paul van de Beek's Kscope11 presentation "is aimed at supporting architects and especially developers to choose the right integration infrastructure for a job." Migration To Java EE 6 With Spring 3 - ...Could Become "Interesting" | Adam Bien "Put simply, big data implies datasets so large they can't normally be processed using a standard transactional database," says David Dorf. "The term 'noSQL' is often used in this context as well." Book Review: "Designing With the Mind In Mind" | Abhinav Agarwal According to Abhinav Agarwal, Jeff Johnson's new book is about "the theory of how the mind perceives information, of how humans understand what they read, and how our eyes are attuned to paying attention to not just what's happening in front of us but also at the periphery of our vision." BPM 11g Advanced Workshop | Martien van den Akker Martien van den Akker shares his thoughts on both the workshop he recently attended and on the Oracle BPM 11g product. Fusion Applications - What You Need To Know: Product Families | Floyd Teter "Fusion Applications are organized into seven groups of related products called Product Families," observes Oracle ACE Director Floyd Teter. "While the product features are organized according to the Business Process Model and can cross the boundaries of product families, the product family groupings are an easy way to wrap your mind around Fusion Apps." Grid Control: Refreshing Weblogic Domains | Dave Best Dave Best shares tips for avoiding problems when using grid control to centrally manage/monitor your environment. Webcast: Oracle to Announce Datanomic Integration Plans The combination of Datanomic technology and the previous acquisition of Silver Creek Systems will deliver a complete, integrated and best-of-breed solution for Data Quality. Learn about Oracle’s strategy and product plans and how the new products acquired from Datanomic will impact your organization. July 19, 2011, 8:00am PT / 11:00am ET. Speakers include Michael Weingartner (Vice President, Product Development, Oracle), Martin Boyd (Senior Director, Product Strategy, Oracle), and Dain Hansen (Director, Product Marketing, Fusion Middleware, Oracle).

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• links for 2010-12-23

  - by Bob Rhubart

  Oracle VM Virtualbox 4.0 extension packs (Wim Coekaerts Blog) Wim Coekaerts describes the the new extension pack in Oracle VM Virtualbox 4.0 and how it's different from 3.2 and earlier releases. (tags: oracle otn virtualization virtualbox) Oracle Fusion Middleware Security: Creating OES SM instances on 64 bit systems "I've already opened a bug on this against OES 10gR3 CP5, but in case anyone else runs into it before it gets fixed I wanted to blog it too. (NOTE: CP5 is when official support was introduced for running OES on a 64 bit system with a 64 bit JVM)" - Chris Johnson (tags: oracle otn fusionmiddleware security) Oracle Enterprise Manager Grid Control: Shared loader directory, RAC and WebLogic Clustering "RAC is optional. Even the load balancer is optional. The feed from the agents also goes to the load balancer on a different port and it is routed to the available management server. In normal case, this is ok." - Porus Homi Havewala (tags: WebLogic oracle otn grid clustering) Magic Web Doctor: Thought Process on Upgrading WebLogic Server to 11g "Upgrading to new versions can be challenging task, but it's done for linear scalability, continuous enhanced availability, efficient manageability and automatic/dynamic infrastructure provisioning at a low cost." - Chintan Patel (tags: oracle otn weblogic upgrading) InfoQ: Using a Service Bus to Connect the Supply Chain Peter Paul van de Beek presents a case study of using a service bus in a supply channel connecting a wholesale supplier with hundreds of retailers, the overall context and challenges faced – including the integration of POS software coming from different software providers-, the solution chosen and its implementation, how it worked out and the lessons learned along the way. (tags: ping.fm) Oracle VM VirtualBox 4.0 is released! - The Fat Bloke Sings The Fat Bloke spreads the news and shares some screenshots.  (tags: oracle otn virtualization virtualbox) Leaks on Wikis: "Corporations...You're Next!" Oracle Desktop Virtualization Can Help. (Oracle's Virtualization Blog) "So what can you do to guard against these types of breaches where there is no outsider (or even insider) intrusion to detect per se, but rather someone with malicious intent is physically walking out the door with data that they are otherwise allowed to access in their daily work?" - Adam Hawley (tags: oracle otn virtualization security) OTN ArchBeat Podcast Guest Roster As the OTN ArchBeat Podcast enters its third year, it's time to acknowledge the invaluable contributions of the guests who have participated in ArchBeat programs. Check out this who's who of ArchBeat podcast panelists, with links to their respective interviews and more. (tags: oracle otn oracleace podcast archbeat) Show Notes: Architects in the Cloud (ArchBeat) Now available! Part 2 (of 4) of the ArchBeat interview with Stephen G. Bennett and Archie Reed, the authors of "Silver Clouds, Dark Linings: A Concise Guide to Cloud Computing." (tags: oracle otn podcast cloud) A Cautionary Tale About Multi-Source JNDI Configuration (Scott Nelson's Portal Productivity Ponderings) "I ran into this issue after reading that p13nDataSource and cgDataSource-NonXA should not be configured as multi-source. There were some issues changing them to use the basic JDBC connection string and when rolling back to the bad configuration the server went 'Boom.'" - Scott Nelson (tags: weblogic jdbc oracle jndi)

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• Creating Drill-Down Detail UITableView from JSON NSDictionary

  - by Michael Robinson

  I'm have a load of trouble finding out how to do this, I want to show this in a UITableDetailView (Drill-Down style) with each item in a different cell. All of the things I've read all show how to load a single image on the detail instead of showing as a UITableView. Does the dictionary have to have "children" in order to load correctly? Here is the code for the first view creating *dict from the JSON rowsArray. I guess what I'm looking for is what to put in the FollowingDetailViewController.m to see the rest of *dict contents, so when selecting a row, it loads the rest of the *dict. I have rowsArray coming back as follows: '{ loginName = Johnson; memberid = 39; name = Kris; age = ;}, etc,etc... Thanks, // SET UP TABLE & CELLS - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease]; } NSDictionary *dict = [rowsArray objectAtIndex: indexPath.row]; cell.textLabel.text = [dict objectForKey:@"name"]; cell.detailTextLabel.text = [dict objectForKey:@"loginName"]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; - (void)viewDidLoad { [super viewDidLoad]; //GET JSON FROM WEBSERVICES: NSURL *url = [NSURL URLWithString:@"http://10.0.1.8/~imac/iphone/jsontest.php"]; NSString *jsonreturn = [[NSString alloc] initWithContentsOfURL:url]; NSData *jsonData = [jsonreturn dataUsingEncoding:NSUTF32BigEndianStringEncoding]; NSError *error = nil; NSDictionary * dict = [[CJSONDeserializer deserializer] deserializeAsDictionary:jsonData error:&error]; if (dict) { rowsArray = [dict objectForKey:@"member"]; [rowsArray retain]; } [jsonreturn release]; } //GO TO DETAIL VIEW: - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { FollowingDetailViewController *aFollowDetail = [[FollowingDetailViewController alloc] initWithNibName:@"FollowingDetailView" bundle:nil]; [self.navigationController pushViewController:aFollowDetail animated:YES]; }

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• Agile and Scrum burning me down please help me figuring out the truth

  - by jadook

  hi all, in the last while I installed MS-TFS 2008 then started to get myself prepared to use Agile Process Guidance template shipped with the TFS. with little googling I passed through Mike Cohn materials: I watched his conference in youtube "sponsored by google: http://www.youtube.com/watch?v=fb9Rzyi8b90 http://www.youtube.com/watch?v=jeT0pOVg0EI Read his book "Agile Estimating and Planning" Watching the video series in his website: http://www.mountaingoatsoftware.com/presentations-tag/video-recorded I was very happy while absorbing and eating the techniques he is using with the teams and how agile and scrum is such a great software process/methodology until I saw Mike answering a question regarding an architect role and talking about the requirements document... at that point everything start falling apart due to the following: Last year I had been assigned to make full analysis "including requirements gathering" for big project "very high priority project". within 2 months of hardwork, dedication and commitment I delivered the whole analysis with full satisfaction of the customer and my BOSS and ZERO amendments. Later on, the project entered the architecting, development ... phases. due to the fact that the system included many competitive and exciting features I requested patenting it and its going in the process... so imagine you are the kind of person who used to love facing all kind of challenges and returning with excellent experience and results for the stakeholders and yourself, How fairly agile and scrum processes will credit and admit your talent and passion while the scrum master/coach treat the team as one unit that accomplish user stories and converge through trial and error approach??!!!! with that dark thoughts about agile and scrum I found many people "anti agile" and on top of them is "Crispin Rogers Johnson": http://agile-crispin.blogspot.com/ that guy made anti statement for everything Mike Cohn used to talk about. I really don't know what to do next! so any guidance will be appreciated. Thanks,

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• Reading from a file, atoi() returns zero only on first element

  - by Nazgulled

  Hi, I don't understand why atoi() is working for every entry but the first one. I have the following code to parse a simple .csv file: void ioReadSampleDataUsers(SocialNetwork *social, char *file) { FILE *fp = fopen(file, "r"); if(!fp) { perror("fopen"); exit(EXIT_FAILURE); } char line[BUFSIZ], *word, *buffer, name[30], address[35]; int ssn = 0, arg; while(fgets(line, BUFSIZ, fp)) { line[strlen(line) - 2] = '\0'; buffer = line; arg = 1; do { word = strsep(&buffer, ";"); if(word) { switch(arg) { case 1: printf("[%s] - (%d)\n", word, atoi(word)); ssn = atoi(word); break; case 2: strcpy(name, word); break; case 3: strcpy(address, word); break; } arg++; } } while(word); userInsert(social, name, address, ssn); } fclose(fp); } And the .csv sample file is this: 900011000;Jon Yang;3761 N. 14th St 900011001;Eugene Huang;2243 W St. 900011002;Ruben Torres;5844 Linden Land 900011003;Christy Zhu;1825 Village Pl. 900011004;Elizabeth Johnson;7553 Harness Circle But this is the output: [900011000] - (0) [900011001] - (900011001) [900011002] - (900011002) [900011003] - (900011003) [900011004] - (900011004) What am I doing wrong?

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• How do I select the last XHTML <span> element with a particular class in XPath?

  - by Fintan

  My target XHTML document (simplified) is like the following: <html> <head> </head> <body> <span class="boris"> </span> <span class="boris"> </span> <span class="johnson"> </span> </body> </html> I'm trying to select the last of class "boris." The XPath expression //span[@class="boris"] selects all spans of class boris. How do I select the last one of these? I've tried //span[@class="boris" and last()] which doesn't work because last() here refers to the last span in the WHOLE DOCUMENT. How do I select all the spans of class boris... and then the last one of these? I've read 5 or 6 XPath tutorials and done a lot of Googling and I can't find a way to do this in XPath alone :( Thanks in advance for help :)

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• Modifying NSMutableDictionary from a single index format into nested (array within array)

  - by Michael Robinson

  I need to take the member ID off the top of this and create an array inside that contains the rest of the JSON return. Here is my JSON return. [{"F_Name_VC":"Frank", "L_Name_VC":"Johnson", "userid":"18", "age":"23", },] After it is json-deserialized it looks like this: I need convert it to be transformed into this, with children sub-array: Someone else posted a similar question but without the fact that it was coming from a JSON deserialization. There were two answers but no conclusion to the question. (Answer 1): NSDictionary *item1 = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:@" member",[NSNumber numberWithInt:3],nil] forKeys:[NSArray arrayWithObjects:@"Title",@"View",nil]]; Answer (2): NSMutableArray *Rows = [NSMutableArray arrayWithCapacity: 1]; for (int i = 0; i < 4; ++i) { NSMutableArray *theChildren = [NSMutableArray arrayWithCapacity: 1]; [theChildren addObject: [NSString stringWithFormat: @"tester %d", i]]; NSString *aTitle = [NSString stringWithFormat: @"Item %d", i]; NSDictionary *anItem = [NSDictionary dictionaryWithObjectsAndKeys: aTitle, @"Title", theChildren, @"Children"]; [Rows addObject: anItem]; } NSDictionary *Root = [NSDictionary withObject: Rows andKey: @"Rows"]; Here is my JSON return and save code: NSData *jsonData = [jsonreturn dataUsingEncoding:NSUTF32BigEndianStringEncoding]; NSError *error = nil; NSDictionary * dict = [[CJSONDeserializer deserializer] deserializeAsDictionary:jsonData error:&error]; if (dict) { rowsArray = [dict objectForKey:@"member"]; [rowsArray retain]; } Thanks in advance. Every tutorial on JSON only shows a simple array being returned, never with children..It's driving me crazy trying to figure this out.

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