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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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  • Should the test and the fix be written by different people?

    - by Nutel
    There is a common practice in TDD to write a test before fix to avoid regression and simplify fixing. I just wonder what if the test and fix will be written by different people, total spent time will be almost the same but as now three people will think about possible failures (+tester) we increase probability that fix will cover all possible failure scenarios. Does this practice make sense or it will just waste additional time needed for one more person to familiarize with bug?

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  • check two conditions in two different columns in excel and count the matches

    - by user1727103
    I've trying to create a Error Log to help me analyse my mistakes. So for simplicity, lets assume I have two columns "Type of Question" - with values SC,RC,CR and another column that indicates whether I got this question "right/wrong".Let's assume this is my table: Question No. | Right/Wrong | Question Type | Right | SC | Right | RC | Wrong | SC | Wrong | CR | Right | RC (Pardon my formatting skills). And I want an output table like this Type of Question | Right | Wrong | Total SC | 1 | 1 | 2 RC | 2 | 0 | 2 CR | 0 | 1 | 1 So basically what I want to do is check Column3 for SC using =COUNTIF(C1:C5,"SC"), and return the total number of SC questions, and then outta the SC , I need to find out which are Right.If I know the right and the total I can get the wrong. I have never written a macro so a formula based answer would suffice.

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  • Visual Studio Tools for Office: create an Excel Add-In

    Use Visual Studio Tools for Office (VSTO) to create an Excel Add-In to implement common tasks.  read moreBy Miguel SantosDid you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • The Seven Sins against T-SQL Performance

    There are seven common antipatterns in T-SQL coding that make code perform badly, and three good habits which will generally ensure that your code runs fast. If you learn nothing else from this list of great advice from Grant, just keep in mind that you should 'write for the optimizer'. Compress live data by 73% Red Gate's SQL Storage Compress reduces the size of live SQL Server databases, saving you disk space and storage costs. Learn more.

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  • Where in the filesystem should I store shared data?

    - by misterben
    Where in the unix filesystem is the conventional location to save non-user specific data, for example data shared via nfs or ftp, or backups? I could obviously create and use any arbitrary folder (such as /home/shared, /data or /var/data), but I'm really wondering if there are any "best" or "common" practice guidelines. The Filesystem Hierarchy Standard doesn't specify a location for shared data. For backups, I tend to use /var/backups, but as several cronjobs write to it should it really be left for their use?

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  • APress Deal of the Day 24/Oct/2013 - CSS3 Solutions

    - by TATWORTH
    Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2013/10/24/apress-deal-of-the-day-24oct2013---css3-solutions.aspxToday's $10 deal of the day from APress at http://www.apress.com/9781430243359 is CSS3 Solutions "CSS3 contains a broad set of new additions and changes to the core CSS language across a range of modules, which means lots of new things to learn, and lots of new things that can go wrong. This book provides solutions to all of the most common CSS3 problems."

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  • Why does this login fail for user 'Servername\Guest'?

    - by Metassebia
    I install SQL Server 2005 EXPRESS edition on one computer, Computer Name = 'MyServe' and Database name='MyDB',take it as database server. it is configured as both Database and Windows Authentication Mode. with username=sa and password=adminaa. I have application in C#.Net my connection string is ConnectionString = "Data Source=MyServe\SQLEXPRESS;Initial Catalog=MyDB;Integrated Security=True;User ID=sa;Password=adminaa"; when I run the application on the computer called MyServe, the database server, it works well, while when I install the application on different computer, when it tries to connect the database it gives an error called "login failed for user 'MyServe\Guest" what is wrong with configuration in the database server or other mistakes. please help me. thankyou in advance. Metasebia

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  • Can a website become popular in a "category" (ie, not just a single page)

    - by Earlz
    I have a few keywords where my website is high ranking(2nd and 3rd result). For instance, I have 3 blog posts covering a certain kind of modem. Is it common for search engines to consider a website popular in a "category"? For instance, if I was the first result for "foobar" with one page, and then added another separate page which mentioned "foobar"(and maybe a link from the original page), would a search engine prioritize this separate page when compared to a completely separate website with a page with the same content?

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  • Adding Windows 7 Jump Lists to Visual C++ Applications

    Jump Lists provide a simple and convenient way for users to open documents and perform common tasks, and Windows 7 provides basic support for Jump Lists with no explicit application development. C++ developers can improve their applications by using the MFC class CJumpList to provide custom jump list items for easier application interaction.

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  • Tutorial: Why Use GRUB2? Good Question! (part 3)

    As we come to the end of Akkana Peck's excellent series on mastering GRUB2, it's not clear what advantages it has over legacy GRUB, or even good old LILO. It seems it's gone backwards. In today's installment we learn how to translate some common and mysterious error messages, and how to manage a multi-boot system with GRUB2.

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  • How do I get a Broadcom Wireless BCM43225 card working?

    - by DanFritz
    During the installation of my Ubuntu 12.10 I could use the wireless connection for extra updates. After the installation I updated Ubuntu and it installed 74 new updates, after that no wireless connection (say what!). So I did try some stuff, I followed the tutorial to load the windows drivers using ndiswrapper (https://help.ubuntu.com/community/WifiDocs/Driver/Ndiswrapper) but I always get that the ndiswrapper module is not loaded (but I did install the extra 3 packages, still doesnt work). ndiswrapper-source ndiswrapper-dkms ndiswrapper-common Please somebody help! Thanks a lot

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  • Service Catalogs for Database as a Service

    - by B R Clouse
    At the end of last month, I had the opportunity to present a speaking session at Oracle OpenWorld: Database as a Service: Creating a Database Cloud Service Catalog.  The session was well-attended which would have surprised me several months ago when I started researching this topic.  At that time, I thought of service catalogs as something trivial which could be explained in a few simple slides.  But while looking at all the different options and approaches available, I came to learn that designing a succinct and effective catalog is not a trivial task, and mistakes can lead to confusion and unintended side effects.  And when the room filled up, my new point of view was confirmed. In case you missed the session, or were able to attend but would like more details, I've posted a white paper that covers the topics from the session, and more.  We start with an overview of the components of a service catalog: And then look at several customer case studies of service catalogs for DBaaS.  Synthesizing those examples, we summarize the main options for defining the service categories and their levels.  We end with a template for defining Bronze | Silver | Gold service tiers for Oracle Database Services. The paper is now available here - watch for updates as we work to expand some sections and incorporate readers' feedback (hint - that includes your feedback). Visit our OTN page for additional Database Cloud collateral.

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  • Control Parameters and DropDownList Text

    - by Bunch
    This is something that I rarely need to do, grab a DropDownList’s selected item’s text for use in a datasource’s ControlParameter. To allow for this use SelectedItem.Text instead of the more common SelectedValue for the PropertyName. <asp:ControlParameter ControlID="ddlStuff" Name="stuffName" Type="String" PropertyName="SelectedItem.Text" /> The reason for using this is for text comparison. On rare occasions you may need to check the text against a list where the SelectedValue just does not help. Technorati Tags: ASP.Net

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  • Inspiring People

    - by barrem23
    So I work with a few people that I feel are intelligent but don't seem to be working out well. After working with them for a while I have seen the flashes of brilliance but mostly I see a reliance on others. What I mean by this is that most times it seems like at the first moment of trouble they go ask for help. Now personally I am all for helping and spend a significant portion of time helping others with whatever they need, but after helping others for so long I have noticed a disturbing trend. These people seem terrified that they might make a mistake and because of this they don't try. So my question is how can I motivate someone who is afraid of making a mistake? In my career I have always learned the most by making mistakes and learning from them. Personally I feel that if I hadn't learned so much I would never have made it as far as I have. So how can I get them to discover that they have the ability to figure it out themselves and that if they make a mistake and learn from it they will be better off. I feel that if I can discover some way to properly motivate them that we all will be better off.

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  • SEO Secrets - Analysis of the Competition

    Probably the most common mistake internet marketers make is not to investigate the strength of the competition. In their eagerness to get their business rolling, they forget to objectively assess their chances of success against their competition. Heed the following warning. If the competition is too strong--because they have gained a strong dominance over your niche--your best option will actually be to find another one which is not "ruled over" by competitors.

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  • Where in the filesystem should I store shared data?

    - by misterben
    Where in the unix filesystem is the conventional location to save non-user specific data, for example data shared via nfs or ftp, or backups? I could obviously create and use any arbitrary folder (such as /home/shared, /data or /var/data), but I'm really wondering if there are any "best" or "common" practice guidelines. The Filesystem Hierarchy Standard doesn't specify a location for shared data. For backups, I tend to use /var/backups, but as several cronjobs write to it should it really be left for their use?

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  • ISO Format

    One of the most common file types used in the distribution of software over the Internet is the .ISO format; these single files contain within them an exact copy of an entire CD or DVD disc. They are... [Author: Chris Holgate - Computers and Internet - April 05, 2010]

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  • How to synchronize the ball in a network pong game?

    - by Thaars
    I’m developing a multiplayer network pong game, my first game ever. The current state is, I’ve running the physic engine with the same configurations on the server and the clients. The own paddle movement is predicted and get just confirmed by the authoritative server. Is a difference detected between them, I correct the position at the client by interpolation. The opponent paddle is also interpolated 200ms to 100ms in the past, because the server is broadcasting snapshots every 100ms to each client. So far it works very well, but now I have to simulate the ball and have a problem to understanding the procedure. I’ve read Valve’s (and many other) articles about fast-paced multiplayer several times and understood their approach. Maybe I can compare my ball with their bullets, but their advantage is, the bullets are not visible. When I have to display the ball, and see my paddle in the present, the opponent in the past and the server is somewhere between it, how can I synchronize the ball over all instances and ensure, that it got ever hit by the paddle even if the paddle is fast moving? Currently my ball’s position is simply set by a server update, so it can happen, that the ball bounces back, even if the paddle is some pixel away (because of a delayed server position). Until now I’ve got no synced clock over all instances. I’m sending a client step index with each update to the server. If the server did his job, he sends the snapshot with the last step index of each client back to the clients. Now I’m looking for the stored position at the returned step index and compare them. Do I need a common clock to sync the ball? EDIT: I've tried to sync a common clock for the server and all clients with a timestamp. But I think it's better to use an own stepping instead of a timestamp (so I don't need to calculate with the ping and so on - and the timestamp will never be exact). The physics are running 60 times per second and now I use this for keeping them synchronized. Is that a good way? When the ball gets calculated by each client, the angle after bouncing can differ because of the different position of the paddles (the opponent is 200ms in the past). When the server is sending his ball position, velocity and angle (because he knows the position of each paddle and is authoritative), the ball could be in a very different position because of the different angles after bouncing (because the clients receive the server data after 100ms). How is it possible to interpolate such a huge difference? I posted this question some days ago at stackoverflow, but got no answer yet. Maybe this is the better place for this question.

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  • A System That Creates Unlimited Traffic Without Google

    A new breakthrough technology that gives mass web traffic through a huge scale of ad networks without a need of the common ways of ads promotion. It is packed with all your needs in driving big number of prospects a day with no stress of maintaining and updating your website.

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  • What does it mean to be agile?

    - by JD01
    We have a project that everyone says we will be doing in a agile way but I doubt we have clearly understood what agile is. In previous projects we had planning meetings, then defined the product back log and allocated the work to developers in 2 to 3 week sprints. Every morning we had scrum meetings (which seemed to go on for 1/2 an hour each time) and each developer got on with it after that. Hardly anyone wrote any tests until at the end of sprint and work that was not completed was added on to the next sprint. Developers hardly spoke to each other and there was no TDD involved in development. In fact most developers had a spec at the start and just got on with it for the 2 or 3 weeks the sprint was arranged for. There was hardly any communication with the client/stake holder. QA got involved usually a few months later and by then we found missing requirements which further increased the amount of work we had to do. Clearly there was no feedback loop. So my question is, where did we go wrong and how can I prevent the team from making the same mistakes.

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  • Perform Routine Server Checks Using PowerShell

    Database administrators tend to perform a lot of routine checks, referred to as sanity checks, on a daily, weekly, and monthly basis. Rob Gravelle shows you how to write some PowerShell scripts to automate a couple of fairly common sanity checks. New! SQL Monitor 3.0 Red Gate's multi-server performance monitoring and alerting tool gets results from Day One.Simple to install and easy to use – download a free trial today.

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  • Free eBook: Troubleshooting SQL Server: A Guide for the Accidental DBA

    Three SQL Server MVPs (Jonathan Kehayias, Ted Krueger and Gail Shaw) provide fascinating insight into the most common SQL Server problems, why they occur, and how they can be diagnosed using tools such as Performance Monitor, Dynamic Management Views and server-side tracing. The focus is on practical solutions for removing root causes of these problems, rather than "papering over the cracks".

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