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  • What's your approach to reading and comprehending technical books? [on hold]

    - by Carl Edwards
    I've taken it upon myself to learn a couple of new programming languages and frameworks and aside from sheer practice I usually start by learning from an O'Reilly book or other technical "bibles". While most have been very helpful I'd like to know the steps or methods others use to best comprehend what's taught. Not to say that I'm struggling through the readings, it would be extremely helpful to know how a seasoned professional approaches new or existing material to build upon his or her foundation of knowledge.

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  • Choosing Your Keywords - The Dos and Don'ts

    New websites are created, submitted to a few search engines and then people expect to receive millions of visitors. When only a few people visit the site over the next couple of weeks new website owners will either give-up or do some research about SEO and SEM.

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  • Did You Know: Where's the Best Place to Get Started?

    - by Kalen Delaney
    Have you ever wondered how to start learning about a specific SQL Server topic? Or how to advise someone who asks "How do I get started?" Redgate, and SQL Server Central, have launched a new site to answer that question. SQL Server Stairways are a series of tutorials designed to take you from zero knowledge of a particular SQL Server topic, to a level of practical understanding that will allow you to start using that feature in a production environment. Not all the tutorials are finished, but new...(read more)

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  • Oracle Solaris 11.1

    - by user12616590
    Oracle Solaris 11.1 was announced at Oracle OpenWorld recently. This release added 300 new performance and feature enhancements. My favorite new features: Solaris Zones on Shared Storage Support for 32 TB (!) of RAM Improved Oracle RAC lock latency Dynamically resize the Oracle DB SGA Industry-first support for FedFS You can learn more from the press release or by attending the Solaris 11.1 webcast on November 7.

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  • Deleted Myself from Admin Group - Now Getting Error usermod: cannot lock /etc/passwd; try again later

    - by BubbaJ
    I have a laptop with Ubuntu 11.10 that is shared between myself and two other family members. My user id was setup as the only "Administrator" on the laptop. The other users were setup as "Standard" users. In my attempt to try to add myself to the user groups for the other users, I somehow deleted myself from the admin groups. I used the "usermod" command from the terminal. I must have neglected to include the proper switches or syntax for the update. It looks like I successfully added my userid to the group associated with my wife's account. When I use the "groups" command, I can see only my id and my wife's id in the list. I no longer see the "admin" or "adm" groups, and others that used to be listed. When I go into System Settings User Accounts it looks like my ID is now listed as a "Standard" user. I would like to change my account back to "Administrator", but now I can't. I did some searches for solutions and found that I would need to boot into Recovery Mode and execute the usermod command from the root session. I was able to successfully boot into Recovery Mode and get to the root session. I was trying to execute the command "usermod -a -G admin user1" to add my id (user1) back to the admin group. When I execute the command from the root session, I get the error message "usermod: cannot lock /etc/passwd; try again later". I tried preceding the usermod command with "sudo", but it didn't make a difference, same error. I then tried adding a new user using adduser, thinking I would try to create a new userid and make the new userid part of the admin group. I get the same error using the adduser command. I saw some posts that recommend looking for and deleting files that end in ".lock" in the etc directory. The only file I found was .pwd.lock which I haven't touched. I am at a loss as to what to try next. I am relatively inexperienced with Ubuntu and Linux, so alot of this is new to me. Any help you can provide would be much appreciated.

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  • AMD Unleashes Six-Core Desktop CPU

    <b>Hardware Central:</b> "AMD today announced the availability of a new six-core desktop processor and platform to accompany it, which includes a new chipset and support for hobbyists who like to tweak their processors to the limits of their heat sink and warranty."

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  • Specify Linq To SQL ConnectionString explicitly

    - by Michael Freidgeim
    When modifying Linq to  Sql data model in Visual Studio 2010,  it re-assigns ConnectionString that is available on developer’s machine. Because the name can be different on different machines, Designer often replace it with something like ConnectionString1, which causes errors during deployment.It requires developers to ensure that ConnectionString stays unchanged.  More reliable way is to use context constructor with explicit ConnectionString name instead of parameterless default constructor GOOD:   var ctx = new MyModelDataContext(Settings.Default.ConnectionString);Not good:          var ctx = new MyModelDataContext();

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  • BizTalk Orchestration & Port Tutorial Part 2

    - by bosuch
    In Part 1 I showed how to create and publish a simple Orchestration demo. Now we’ll finish configuring it in the admin console and test it. Open the BizTalk Server 2009 Administration Console, and expand BizTalk Server 2009 Administration, then Applications. You should have an entry for OrchestrationPortDemo – expand it as well. First, we’ll add the Receive Port – the place that we’ll drop the test file. Right-click on Receive Ports and select New One-way Receive Port. On the General tab, name it InputPort, then click over to Receive Locations.   Click New to add a new location. Your receive location can be FTP, SQL, WCF, SharePoint, or many other choices, but for this demo we’ll add a File location. Click the Configure button and set a receive folder (something like “C:\PortDemo\”) and a file mask (stick with “*.xml” for now) and click OK three times to create your Receive Port.   Next we’ll create the Send port – the location where BizTalk will drop the file. Right-click on Send Ports and choose New Static One-way Send Port. Give it an appropriate name, and configure the FILE Transport Properties as shown:   Click OK twice and your Send Port will be created. Now we’ll configure the Orchestration Bindings. Click on Orchestrations, then right-click the orchestration itself and select Properties. Select the Bindings tab. Choose BizTalkServerApplication as the host, and select the Send and Receive ports you previously created, as shown:   Now it’s time to fire everything up. Right-click on the send port you created and click Start. Once the Status column displays “Started”, click on Receive Locations and Enable the Receive Location previously created. Finally, start the Orchestration. Now, time to test! Create a simple xml file like: <root>    <Node1>Test</Node1>    <Node2>Test</Node2> </root> And drop it into the C:\PortDemo folder. After a couple of seconds the file should disappear – this indicates BizTalk has picked it up for processing. Look in the C:\PortDemo\Output folder and you should see an xml file with a GUID for a name, like {7C50104F-FC3E-4A49-B2FA-4F560A37636D}.xml. Open it to verify that it matches your input file. Practically, this demo doesn’t do a whole heck of a lot, but it shows you the basics for building, publishing and running an orchestration.

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  • Why do I have to divide the origin of a quad by 4 instead of 2?

    - by vinzBad
    I'm currently transitioning from C#/XNA to C#/OpenTK but I'm getting stuck at the basics. So I have this Sprite-Class: public static bool EnableDebugDraw = true; public float X; public float Y; public float OriginX = 0; public float OriginY = 0; public float Width = 0.1f; public float Height = 0.1f; public Color TintColor = Color.Red; float _layerDepth = 0f; public void Render() { Vector2[] corners = { new Vector2(X-OriginX,Y-OriginY), //top left new Vector2(X +Width -OriginX,Y-OriginY),//top right new Vector2(X +Width-OriginX,Y+Height-OriginY),//bottom rigth new Vector2(X-OriginX,Y+Height-OriginY)//bottom left }; GL.Color3(TintColor); GL.Begin(BeginMode.Quads); { for (int i = 0; i < 4; i++) GL.Vertex3(corners[i].X,corners[i].Y,_layerDepth); } GL.End(); if (EnableDebugDraw) { GL.Color3(Color.Violet); GL.PointSize(3); GL.Begin(BeginMode.Points); { for (int i = 0; i < 4; i++) GL.Vertex2(corners[i]); } GL.End(); GL.Color3(Color.Green); GL.Begin(BeginMode.Points); GL.Vertex2(X + OriginX, Y + OriginY); GL.End(); } With the following setup I try to set the origin of the quad to the middle of the quad. _sprite.OriginX = _sprite.Width / 2; _sprite.OriginY = _sprite.Height / 2; but this sets the origin to the upper right corner of the quad, so i have to _sprite.OriginX = _sprite.Width / 4; _sprite.OriginY = _sprite.Height / 4; However this is not the intended behaviour, could you advise me how I fix this?

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  • SQLServerCentral Best Practices Clinic: Part 1

    We exposed the SQLServerCentral cluster for monitoring with SQL Monitor. Just like other companies, we have constraints on resources, and we have more work that needs to be done. Help us configure SQLServerCentral’s database servers with your suggestions on what is the highest priority for a website database back end. NEW! SQL Monitor 2.0Monitor SQL Server Central's servers withRed Gate's new SQL Monitor.No installation required. Find out more.

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  • Get Started with Chart Development in Reporting Services 2008

    With Reporting Services 2008, it is now much easier to produce charts from data in SQL Server, and the variety of charts seems almost limitless. All you need to get started is a quick step-by-step guide that tells you the basics and gets you past the stage of creating the first chart. Well, here it is. NEW! SQL Monitor 2.0Monitor SQL Server Central's servers withRed Gate's new SQL Monitor.No installation required. Find out more.

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  • Unicode in PostgreSQL 8.4

    - by user8382
    I installed the "postgresql-8.4" package with default options. Everything worked fine, however I can't seem to manage to create unicode databases: -- This doesn't work createdb test1 --encoding UNICODE -- This works createdb test2 The error message "createdb: database creation failed: ERROR: new encoding (UTF8) is incompatible with the encoding of the template database (SQL_ASCII)" is a bit puzzling because (afaik) I don't use a template for creating the new db, or is it implicitely referring to the default "postgres" database for some reason ? Or maybe I'm missing a setting in a .conf file ?

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  • Deal Registration is Moving to the Oracle Partner Store!

    - by Cinzia Mascanzoni
    In November 2012, Oracle will unveil a new partner deal registration system within Oracle Partner Store (OPS). At that time, OPS will become the single source for partners to register deals, obtain deal status, and place orders. The new deal registration system will offer several enhancements, including: Simplified Registration Form Easier Product Selection Expanded Browser Support Shared Registration Visibility Between VAD and VAR Pre-set Customer Selection from Partner Ordering Base Read more here.

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  • Classic vs universal and loss of historical data

    - by iss42
    I'm keen to use some of the new features in Google Universal Analytics. I have an old site though that I don't want to lose the historical data for. The comparisons with historical data are interesting for example. However Google doesn't appear to allow you to change a property from the classic code to the new code. Am I missing something? I'm surprised this isn't a bigger issue for many other users.

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  • Saving project (build) settings in Eclipse CDT [migrated]

    - by Mike Valeriano
    Is there an option somewhere in CDT (Juno) where I can set customized "Release" configurations for my projects? All I want to do for now is to be able to create a new C++ project and have by default the -std=c++11 and -std=gnu11options for the compilers and -s for the linker, and maybe a few other optimization flags. It's not a big hassle to do it every time for every new program, but I was just wondering, since I've been creating a lot of small programs to get to know C++ better.

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  • How to move domain from 1&1 to fasthosts with minimum downtime [duplicate]

    - by arcanine
    This question already has an answer here: Changing web hosting companies 1 answer How can we move our domain name from 1&1's control over to our new host with as little affect (if any) on downtime for our domain name. We've tried moving name servers before and our site went dark despite us defining all the old records on to the new name server host, now this time we're going to move the entire domain to another company but we've been bit so many times by this that I'm trying to find out what the process should be, and whether it can be done in a way to prevent down time

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  • Testing The Different Ubuntu 10.04 Kernels

    <b>Phoronix:</b> "The release of Ubuntu 10.04 LTS "Lucid Lynx" is quickly approaching next month and it will arrive with a whole set of new features and improvements including a faster boot process, a long-awaited new theme, the Nouveau driver to replace the crippled xf86-video-nv driver, the unveiling of the Ubuntu One Music Store, integration of Plymouth, Ubuntu ARM advancements..."

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  • Where i set touch effect when a spawn Srite are comming on the screen?

    - by shihab_returns
    I just create a scene where create a spawn spirit that comes from above screen height in Landscape mode. Now i want to remove spirits when i touch on it. I tried but seems the code not works and crashed also after a while. here is my code: /** TimerHandler for collision detection and cleaning up */ IUpdateHandler detect = new IUpdateHandler() { @Override public void reset() { } @Override public void onUpdate(float pSecondsElapsed) { Iterator<AnimatedSprite> targets = targetLL.iterator(); AnimatedSprite _target; while (targets.hasNext()) { _target = targets.next(); if (_target.getY() >= cameraHeight) { // removeSprite(_target, targets); tPool.recyclePoolItem(_target); targets.remove(); Log.d("ok", "---------Looop Inside-----"); // fail(); break; } } targetLL.addAll(TargetsToBeAdded); TargetsToBeAdded.clear(); } }; /** adds a target at a random location and let it move along the y-axis */ public void addTarget() { Random rand = new Random(); int minX = mTargetTextureRegion.getWidth(); int maxX = (int) (mCamera.getWidth() - mTargetTextureRegion.getWidth()); int rangeX = maxX - minX; Log.d("----point----", "minX:" + minX + "maxX:" + maxX + "rangeX:" + rangeX); int rX = rand.nextInt(rangeX) + minX; int rY = (int) mCamera.getHeight() + mTargetTextureRegion.getHeight(); Log.d("---Random x----", "Random x" + rX + "Random y" + rY); target = tPool.obtainPoolItem(); target.setPosition(rX, rY); target.animate(100); mMainScene.attachChild(target, 1); mMainScene.registerTouchArea(target); int minDuration = 2; int maxDuration = 32; int rangeDuration = maxDuration - minDuration; int actualDuration = rand.nextInt(rangeDuration) + minDuration; // MoveXModifier mod = new MoveXModifier(actualDuration, target.getX(), // -target.getWidth()); MoveYModifier mody = new MoveYModifier(actualDuration, -target.getHeight(), cameraHeight + 10); target.registerEntityModifier(mody.deepCopy()); TargetsToBeAdded.add(target); } @Override public boolean onAreaTouched(final TouchEvent pSceneTouchEvent, final ITouchArea pTouchArea, final float pTouchAreaLocalX, final float pTouchAreaLocalY) { if (pTouchArea == target) { Toast.makeText(getApplicationContext(), "Yoooooooo", Toast.LENGTH_LONG).show(); } return true; } ** My question is where i implements IOnAreaTouchListener in My code. ? ** Thanks in Advance.

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  • Choosing Your Keywords - The Dos and Don'ts

    New websites are created, submitted to a few search engines and then people expect to receive millions of visitors. When only a few people visit the site over the next couple of weeks new website owners will either give-up or do some research about SEO and SEM.

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  • Does Googlebot (and/or search engines) index a forwarded page? [duplicate]

    - by user2889419
    This question already has an answer here: HTTP and HTTPS impacts on SEO 1 answer Let's say I have example.com domain, and I force the user to use the HTTPS over HTTP. The question is as browsers just accept and load the forwarded/new page (when the request for http://example.com - https://example.com), does the Googlebot (or other search engines) accept the forwarded page and index the new page and just ignore the old page? In other word, does search engines accept HTTPS beside the HTTP?

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  • Using SQL Server Concatenation Efficiently

    This article shares some tips on using concatenation efficiently for application development, pointing out some things that we must consider and look at when concatenating values or fields in our queries or stored procedures. NEW! Never waste another weekend deployingDeploy SQL Server changes and ASP .NET applications fast, frequently, and without fuss, using Deployment Manager, the new tool from Red Gate. Try it now.

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  • Spotlight on Linux: PCLinuxOS 2010

    <b>Linux Journal:</b> "The long anticipated release of PCLinuxOS 2010 finally arrived a few weeks ago and reviews have been overwhelmingly positive. Even with the new crew and new features, it's still very much PCLOS."

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