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• Hybrid Columnar Compression

  - by user12620172

  You heard me in the past talk about the HCC feature for Oracle databases. Hybrid Columnar Compression is a fantastic, built-in, free feature of Oracle 11Gr2. One used to need an Exadata to make use of it. However, last October, Oracle opened it up and now allows it to work on ANY Oracle DB server running 11Gr2, as long as the storage behind it is a ZFSSA for DNFS, or an Axiom for FC. If you're not sure why this is so cool or what HCC can do for your Oracle database, please check out this presentation. In it, Art will explain HCC, show you what it does, and give you a great idea why it's such a game-changer for those holding lots of historical DB data. Did I mention it's free? Click here: http://hcc.zanghosting.com/hcc-demo-swf.html

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• Is there a way to publish IOS app from windows/Linux?

  - by user65760

  So I have been using Linux(especially, ubuntu) and windows(windows 7) for a long time . But i dont have a MAC, neither do i have an iphone. I do not actually want to buy them either . So the problem here is :how do i publish my app from windows or linux ? Kindly do understand i am not speaking about jailbroken programs(for jail broken i phones), i do not have any one near me who will lend me a MAC to publish my app . I started learning objective C some time ago. However, whenever i search the internet i get this information that there is no full proof way of publishing an app from windows or Linux . I also do intend to make it a paid app, meaning i dont wanna make it free. It will be very helpful if someone can suggest a way to overcome this problem .

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• Good analytics tools that can track visitor actions from a particular source?

  - by tnorthcutt

  Are there good tools that can track what actions a certain subset of visitors (i.e. from a particular source) do once they're on your site? As far as I know (which could be wrong), Google Analytics can't do this beyond telling you how long they stayed, bounce rate, and average number of pages. I'm looking for something that can tell me which links they clicked on, and if possible break it down per-visitor. Free solutions would be great, but I'm anticipating that this would require a paid solution.

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• Follow Your World Notifies You When Satellite Images Update

  - by Jason Fitzpatrick

  Satellite images update infrequently enough to make manually checking for new photos of interesting locations impractical; automate the process with notifications from Follow Your World. Courtesy of Google, the Follow Your World tool allows you to plug in locations and receive email updates when the satellite images for that location are updated. Whether you’re looking for crisp high-res images of monuments around the world or shots of your own backyard, it’s easy to set it up and wait for the updates to roll in. Follow Your World [via Google Lat Long Blog] Hack Your Kindle for Easy Font Customization HTG Explains: What Is RSS and How Can I Benefit From Using It? HTG Explains: Why You Only Have to Wipe a Disk Once to Erase It

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• Duplicating content from another site and adding value (summaries, statistics) - ranking and courtesy

  - by Krastanov

  I am working on a site that takes a governmental data base, provides a number of statistical and other summaries and also post the original data. However this data (mostly long pieces of text) is also published on the official governmental site (without the added value of summaries). Should I worry about google ranking due to this duplication? What is the preferred way to point to the official source of the information? There is no advertisement on my site. My site is ".com". The governmental site is ".bg".

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• Where can I find good (well organized) examples of game code?

  - by smasher

  Where can I find good (well organized) examples of game code? I'm hoping that I can pick up some organizational tips. Most examples in books are too short and leave out lots of detail for the sake of brevity. I'm particularly interested on how to group your variables and methods so that another programmer would know where to look in the code. For example initializers at the top, then methods that take input, then methods that update views. I don't care about a particular language, as long as its OOP. I looked at the Quake 2 and 3 sources, but they're straight C and not much help for getting tips on organizing your objects. So, have you seen some good source? Any pointers to code that makes you say "wow, that's well organized" would be great.

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• Randomly spawning bitmaps on cnvas

  - by Toystoj

  I need some ideas in order to finish algorithm. I'm randomly placing objects (bitmaps) on canvas without overlapping. Time needed to finish it is my problem. When I need to spawn for example 80% of canvas it takes to long. So i was thinking : I should make some change when the bitmaps take off 50 % of canvas. I want to tell algorithm that it should generate new locations (x,y) where it is free space. My question is : How to render new location (x,y) in place where is free space. In summary: Things I know : object location (x,y) 4 corners (x,y) of object object width, height canvas width, height Any suggestions?

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• Redesigning foreign website for my portfolio and offer it?

  - by BeatMe

  Hi, I've had an interest in web design for a long time and am constantly trying to learn something new. I do not have any references in my portfolio, but would like to start freelancing. Is it bad practice to redesign a website from a local company and use it for my portfolio? Do I infringe any copyright? What if I offer the redesign to the company? Has someone done this before? If so, share your experiences.

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• Comment améliorer le temps de compilation pour C/C++ ? Apple propose un système de modules pour remplacer les en-têtes

  Comment améliorer le temps de compilation pour C/C++ ? Apple propose un système de modules pour remplacer les en-têtes Un des problèmes assez décriés des langages C et C++ est le temps de compilation, qui est un peu plus long. Cela est surtout dû à l'utilisation des en-entêtes (headers). Les développeurs d'Apple viennent de proposer un document assez intéressant qui introduit un système de modules pour C et C++ afin d'améliorer le temps de compilation. À titre d'exemple, Apple cite le minuscule code source de « Hello world » en C : quatre lignes de code seulement. Pourtant, le fichier d'en-tête nécessaire pour sa compilation est 173 fois plus grand que l'application elle-m...

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• 404 code/header for search engines, on removed user content?

  - by mowgli

  I just got an email, from a former user on my website He was complaining that Google still shows the contact page he created on my site, even though he deleted it a month ago This is the first time in many years anyone requests this I told him, that it's almost entirely up to Google what content it wants to keep/show and for how long. If it's deleted on the site, I can't do much, other than request a re-visit from the googlebot The user-page already now says something like "Not found. The user has removed the content" TL;DR: But the question is: Should I generally add a 404 header (or other) for dynamic user content that has been removed from the site? Or could this hurt the site (SEO)?

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• Managing large downloadable content on mobile devices

  - by larromba

  This is a general question of how to best manage large downloadable content on mobile devices. Lets consider a situation whereby a mobile app needs to download a number of very large content items, like HD videos, that are over 500MB but under 2GB. Now, lets assume this content delivery system should be scalable. Would it be a fair assumption that: A reputable cloud service would be needed - if so, what is a reliable and cost effective cloud service for mobile devices based on anyone's experience? Large content downloads should only be attempted over a wifi connection, so the end user doesn't incur large costs, e.g. when travelling. Downloads should carry on in the background if possible, as the user won't want to wait in an app for long periods. If the downloads don't finish, or the OS quits the app, all downloads should carry on when the app is next activated? Are there any other pitfalls anyone may have experienced when managing large content on mobile devices? Thanks.

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• Playing a death anim on an enemy that I want to remove

  - by Max

  I've been trying to find a tutorial on how to best make animations in Android. I already have some animations for my enemies and my character that are controlled by rectangles and changing rectangleframe between updates using a picture like this: When I'm shooting my enemies they lose HP, and when their HP == 0 they get removed. As long as I'm using an arrayList (which I do for all enemies and bullets) I'm fine, since I can just use list.remove(i). But when I'm on a boss-level and the Boss's HP == 0, I want to remove him and play an animation of an explosion of stars before the "End-screen". Is there a preferred way to do temporary animations like this? If you can give me an example or redirect me to a tutorial, I'd be really grateful!

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• ClearTrace Supports SQL Server 2008 R2

  - by Bill Graziano

  It was a long time coming and I hope worth the wait.  If you have SQL Server 2008 R2 installed on the same box as ClearTrace and you download the latest ClearTrace build (36) you’ll be able to read SQL Server 2008 R2 traces.  I also fixed a bug handling very, very large SQL statements.  I encountered an INSERT statement that was 12MB in size.  It was storing XML in a database.  ClearTrace uses regular expressions to clean up the SQL it finds.  Running two dozen regular expressions over this 12MB string caused the application to crash.  In this build I’m just skipping any statement over 1MB.  I’ll do something a little nicer in the next build. (And if you don’t want to download ClearTrace you can test the online version at www.TraceTune.com)

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• nfs mountpoint named ``share'' breaks ls and man

  - by freddyb

  I mounted a nfs server to ~/share. This works fine as long as I'm at home, where the nfs share is in reach. Whenver I'm not, this seems to break access to all manpages. Using man (or ls in my homedir) waits forever. Checking with strace reveals that they try to access the folder called share. Unmounting fails too. Even with -l (lazy) and -f (force). I am asking for three things here: Is ``share'' a magic name? Does something like MANPATH exist, which I should avoid? How do I unmount without rebooting? (I already commented the share out in fstab) What would you suggest me to do, to have network/position based mounting of NFS shares?

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• How can I limit CD drive speed while on the live CD to avoid drive noise?

  - by iugamarian

  I sometimes disconect my harddisks for the weeks while only using the internet and I use the Ubuntu Live CD. But every time it needs something while in live desktop it accelerates and makes a lot of noise, also the acceleration takes too long. I want lower drive speed than acceleration lags, because acceleration lags stop me completly exactly when I need something. How can I lower the CD drive speed, say to maximum 16x, without restarting? I can't restart because I only use the CD drive, no harddisks, no flash disks, no network disks. Edit: No USB drives. Setcd does not work for the live session.

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• Problem! I can't add work areas in gnome flashback ubuntu 14.04 or make the alt-tab work!

  - by user2970454

  Please, I have been dealing with the alt-tab problem for a long time. I have alreade check keyboard shortcuts in the configuration panel but it still doesn't work. (I already had this problem in ubuntu 12.04, but since I installed 14.04 another problem came arround. I can't add work spaces. I tryed changing the amount of work areas by right clicking in the desktop's miniature but it does't chenge. Anyone can help me find this parameters in a file wich I may be able to edit using "sudo nano" or something similar? Thaks! PS: I also have problems with the backlight but that may be another issue since I had to install samsung-backlight in 12.04 but it isn't availabe for 14.04. I just mention it in case someone knows somthing about it.

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• arrays format (Javascript)

  - by João Melo

  i have a list of users, with minions, something like this: User52: minion10 minion12 User32: minion13 minion11 i've been keeping in an array where the "location" is the id, like this: Users: [52]User minions: [10]minion [12]minion [32]User minions: [13]minion [11]minion so i can access them easily like this: user[UserID].minions[MinionID] (ex: user[32].minions[11]) but when i print it or send it by json i get something like this: {,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,minion,,,,,,,,,,,,,,minion} but should i keep using like this or should i change to something like this: User = function(){ this.minions = ...; this.getMinion = function(value){ for(var m in this.minions){ if(this.minions[m].id == value){ return this.minions[m]; break; } } } } and get it like this: user.getMinion(MinionID); Question: i get better performance using a "short" array but using loops every time i need a minion, or using "long" arrays, but no need for loop and getting values directly from the id "name"?

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• Why does DirectX use a left-handed coordinate system?

  - by greyfade

  I considered posting on Stack Overflow, but the question strikes me as being far too subjective since I can't think of a reasonable technical explanation for Microsoft's choice in this matter. But this question has bugged me for so long and the issue keeps coming up in one of my projects, and I have never actually seen an attempt at explaining this: OpenGL uses a right-handed coordinate system, where the +Z part of the world coordinate system extends toward the viewer. DirectX uses a left-handed system where the +Z part of the world coordinate extends into the screen, away from the viewer. I never used the Glide API, so I don't know how it worked, but from what I can gather, it uses a left-handed system as well. Is there a technical reason for this? And if not, is there some conceptual advantage to a particular handedness of a coordinate system? Why would one choose one over the other?

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• To be or not to be: a solutions architech [closed]

  - by jQwierdy

  short version: as a student taking a summer internship, whats more useful for later in my career, taking a job as a solutions Architect, or a software engineer? Long version: I'm a CS major in my 3rd year, I've interviewed with some of the big companies and did not get job offers year (Morgan Stanley, Microsoft, FacebooK) but did receive offers from a startup. I actually got two offers from the same start up. I really like the startup and despite the (much) lower wage at it compared to a bigger company, I could do solutions architecture. Solutions architects (I think) work more on figuring out high level solutions directly for clients, so I'd be working often with a sales team and developers. Everyone knows what (generally) a software engineer does. And so my question is this: for my career, what would be more beneficial to a) know how to do, and b) have on my resume.

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• Erratic typing in Ubuntu 13.04

  - by spencerrecneps

  I recently upgraded to 13.04 and have noticed that my keyboard randomly drops keystrokes. Furthermore, it will occasionally cause the last pressed key to "stick", leaving me with "typng that looks lik thisssssssssssssssssssssss". I do not believe that this is a hardware problem, as the keyboard worked just fine under 12.10 a few days ago. In addition, there are no Universal Settings turned on that would be causing this problem. I came across this unanswered Ask Ubuntu post that seems to identify part of my problem: Missing keystrokes in ubuntu 13.04 I was able to work around the repeated keystrokes problem by turning off the "key presses repeat when key is held down" option under the keyboard settings, but this is not an acceptable solution in the long term. Any thoughts?

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• TGA loader: reverse y-axis

  - by aVoX

  I've written a TGA image loader in Java which is working perfectly for files created with GIMP as long as they are saved with the option origin set to Top Left (Note: Actually TGA files are meant to be stored upside down - Bottom Left in GIMP). My problem is that I want my image loader to be capable of reading all different kinds of TGA, so my question is: How do I flip the image upside down? Note that I store all image data inside a one-dimensional byte array, because OpenGL (glTexImage2D to be specific) requires it that way. Thanks in advance.

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• Finding out which tile a mouse click landed in

  - by Shard

  I am working on an icometric grid based game and im having an issue trying to link a mouse click from the user to a tile. I have been able to split the problem into 2 parts which is first finding a rectangle that sourounds a tile, which I have been able to do but the second part of figuring out from the rectangle which tile the click landed in has got me stumped. Here is an example of a rectangle with tiles on the inside: The rectangle is 70px long and 30px high so if i use an input of say 30x(top)/20y(left) how would I go about determining which tile this fell into?

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• Will my traffic come back after my site redesign?

  - by Steve

  I screwed up. I launched my site after rebuilding it without setting up the proper 301's and traffic immediately dropped about 60%(it's not really something I thought about). After about a week and a half, I set the 301's back up yesterday and resubmitted my sitemap to google. Google has yet to index the whole thing, but traffic isn't getting any better. Is it likely to come back? If so, I. How long? Has this happened to you? Any info is appreciated. I am really anxious!

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• Netbeans styles. Are there style profiles similar to Notepad++?

  - by Djeman

  Not long ago I started to use Ubuntu. When I was on Windows I used Notepad++. I was very surprised when I found that Notepad++ is only for Windows. So I installed Netbeans. Netbeans is a powerful IDE and in general I like it, except default styles. Maybe are there style profiles (i.e. plugins or other forms)? It would be good if there is a style profile completely identical to Notepad++. I will be very thankful if you would help me to find what I'm looking for.

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• I'm seeing a lot of a new format for title elements for major sites: a few tags, and only then the title of the site itself, is this now optimal SEO?

  - by Tchalvak

  I'm seeing a lot of sites go to a format similar to the one now in use by stackexchange sites (i.e. short topic - maybe a long topic - only finally the site's name). Is this optimal SEO? It seems kind weird both because I'm only begun to notice changes in this direction recently, and because it seems like it would make it harder to tell in search results which actual site you're visiting, even if the topic is one that matches. Still, sites like Facebook, StackOverflow, etc probably aren't wrong, so I'm wondering if I should try to make my sites use that format, going forwards...

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