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• First Step Towards Rapid Enterprise Application Deployment

  - by Antoinette O'Sullivan

  Take Oracle VM Server for x86 training as a first step towards deploying enterprise applications rapidly. You have a choice between the following instructor-led training: Oracle VM with Oracle VM Server for x86 1-day Seminar. Take this course from your own desk on one of the 300 events on the schedule. This seminar tells you how to build a virtualization platform using the Oracle VM Manager and Oracle VM Server for x86 and to sustain the deployment of highly configurable, inter-connected virtual machines. Oracle VM Administration: Oracle VM Server for x86 3-day hands on course. This course teaches you how to build a virtualization platform using the Oracle VM Manager and Oracle VM Server for x86. You learn how deploy and manage highly configurable, inter-connected virtual machines. The course teaches you how to install and configure Oracle VM Server for x86 as well as details of network and storage configuration, pool and repository creation, and virtual machine management.Take this course from your own desk on one of the 450 events on the schedule. You can also take this course in an Oracle classroom on one of the following events:  Location  Date  Delivery Language  Istanbul, Turkey  12 November 2012  Turkish  Wellington, New Zealand  10 Dec 2012  English  Roseveille, United States  19 November 2012  English  Warsaw, Poland  17 October 2012  Polish  Paris, France  17 October 2012  French  Paris, France  21 November 2012  French  Dusseldorfm Germany  5 November 2012  German For more information on Oracle's Virtualization courses see http://oracle.com/education/vm

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• Slick 2D first trial error

  - by pringlesinn

  I followed some advices to learn Slick2D and when I started doing the "SimpleGame" I got my first error. Does anyone have any idea of what is it and how to fix? Sun Dec 26 23:09:12 GMT-03:00 2010 INFO:Slick Build #274 Sun Dec 26 23:09:12 GMT-03:00 2010 INFO:LWJGL Version: 2.0b1 Sun Dec 26 23:09:12 GMT-03:00 2010 INFO:OriginalDisplayMode: 1024 x 768 x 16 @60Hz Sun Dec 26 23:09:12 GMT-03:00 2010 INFO:TargetDisplayMode: 800 x 600 x 0 @0Hz Sun Dec 26 23:09:12 GMT-03:00 2010 ERROR:Could not find a valid pixel format org.lwjgl.LWJGLException: Could not find a valid pixel format at org.lwjgl.opengl.WindowsPeerInfo.nChoosePixelFormat(Native Method) at org.lwjgl.opengl.WindowsPeerInfo.choosePixelFormat(WindowsPeerInfo.java:52) at org.lwjgl.opengl.WindowsDisplayPeerInfo.initDC(WindowsDisplayPeerInfo.java:54) at org.lwjgl.opengl.WindowsDisplay.createWindow(WindowsDisplay.java:158) at org.lwjgl.opengl.Display.createWindow(Display.java:299) at org.lwjgl.opengl.Display.create(Display.java:848) at org.lwjgl.opengl.Display.create(Display.java:800) at org.newdawn.slick.AppGameContainer.tryCreateDisplay(AppGameContainer.java:299) at org.newdawn.slick.AppGameContainer.access$000(AppGameContainer.java:34) at org.newdawn.slick.AppGameContainer$2.run(AppGameContainer.java:364) at java.security.AccessController.doPrivileged(Native Method) at org.newdawn.slick.AppGameContainer.setup(AppGameContainer.java:345) at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:314) at SimpleGame.main(SimpleGame.java:38) Exception in thread "main" org.newdawn.slick.SlickException: Failed to initialise the LWJGL display at org.newdawn.slick.AppGameContainer.setup(AppGameContainer.java:375) at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:314) at SimpleGame.main(SimpleGame.java:38)

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• SQL SERVER – DMV sys.dm_exec_describe_first_result_set_for_object – Describes the First Result Metadata for the Module

  - by pinaldave

  Here is another interesting follow up blog post of SQL SERVER – sp_describe_first_result_set New System Stored Procedure in SQL Server 2012. While I was writing earlier blog post I had come across DMV sys.dm_exec_describe_first_result_set_for_object as well. I found that SQL Server 2012 is providing all this quick and new features which quite often we miss  to learn it and when in future someone demonstrates the same to us, we express our surprise on the subject. DMV sys.dm_exec_describe_first_result_set_for_object returns result set which describes the columns used in the stored procedure. Here is the quick example. Let us first create stored procedure. USE [AdventureWorks] GO ALTER PROCEDURE [dbo].[CompSP] AS SELECT [DepartmentID] id ,[Name] n ,[GroupName] gn FROM [HumanResources].[Department] GO Now let us run following two DMV which gives us meta data description of the stored procedure passed as a parameter. Option1: Pass second parameter @include_browse_information as a 0. SELECT * FROM sys.dm_exec_describe_first_result_set_for_object ( OBJECT_ID('[dbo].[CompSP]'),0) AS Table1 GO Option2: Pass second parameter @include_browse_information as a 1. SELECT * FROM sys.dm_exec_describe_first_result_set_for_object ( OBJECT_ID('[dbo].[CompSP]'),1) AS Table1 GO Here is the result of Option1 and Option2. If you see the result, there is absolutely no difference between the results. Both of the resultset are returning column names which are aliased in the stored procedure. Let us scroll on the right side and you will notice that there is clear difference in some columns. You will see in second resultset source_database, Source_schema as well few other columns are reporting original table instead of NULL values. When @include_browse_information result is set to 1 it will provide the columns details of the underlying table. I have just discovered this DMV, I have yet to use it in production code and find out where exactly I will use this DMV. Do you have any idea? Does any thing comes up to your mind where this DMV can be helpful. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL DMV, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• My first Windows Phone 7 App: Getting SharePoint Content

  - by Jan Tielens

  Earlier this week at the Mix10 conference, Microsoft announced the developer story of the Windows Phone 7 Series. As expected, it’s all about Silverlight! For all the details I highly recommend to watch the recorded keynotes (day 1, day 2). Tonight I could resist trying to build my very first Windows Phone 7 application; the traditional Hello World thingy. Because the developer tools (Visual Studio 2010 and the free Visual Studio 2010 Express) have pretty nice templates, that wasn’t much of a challenge. So I tried to build something real: an application that can display SharePoint 2010 content, for example items from an announcements list. I head to work my way around some limitations because both SharePoint 2010 and the developer tools are still in beta and CTP, but finally I got it working! Because of the many workarounds, the code is not yet ready for publication, but I’ve created a small screencast so you can see the result. To be continued! :-) Windows Phone 7 POC: Getting SharePoint Data from Jan Tielens on Vimeo.

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• Error: You need to load the kernel first in Grub

  - by Exeleration-G

  I have Lubuntu 11.10 installed on /dev/sda3, and Xubuntu 11.10 on /dev/sda5. A while ago, while being on Lubuntu, I made a mistake somewhere in creating a Live USB: by mistake, I installed a Live USB bootloader into /dev/sda3. This didn't result in any problem at that time. Today, I updated the kernel. I had to restart Lubuntu. In Grub, Lubuntu suddenly didn't appear anymore, and I booted automatically in Xubuntu. I tried to run update-grub and tried to use grub-customizer to get Lubuntu back in Grub, but this didn't work. I ran os-prober, but it doesn't show me Lubuntu. Then, I tried to add a new entry to /etc/grub.d/ on /dev/sda5 called 12_lubuntu. It contained the following: #!/bin/sh -e echo "Lubuntu" cat << EOF menuentry "Lubuntu" { set root=(hd0,3) linux /boot/vmlinuz initrd /boot/initrd.img } EOF After doing that, I ran update-grub and with grub-customizer, I wrote the Grub-configuration to MBR, that is: /dev/sda. Suddenly, Lubuntu appeared in Grub. I tried to launch it, but when doing this, the following message appeared: Error: You need to load the kernel first How can I make Grub start Lubuntu again?

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• Is my first employer expecting too much?

  - by priyank patel

  This is my first job as a programmer. I am working using the followig technologies: ASP.NET C# HTML CSS Javascript JQuery I work for a firm which develops software for small banking firms. Currently they have their software running in 100 firms. Their software is developed in Visual Fox Pro. I was hired to develop an online version of this software. I am the only developer. My boss is another developer, the only other developer in the firm. Therefore, my employer has a total of two developers. My boss does not have any experience with .NET development. I have been working on this project for 8 months. The progress is there, but has been very slow. I try my best to do what my boss asks. But the project just seems too ambitious for me. The company has not done have any planning for the project. They just ask me to develop what their older software provides. So I have to deal with front end, back end, review code, design architecture, and more. I have decided to give my best. I try a lot. But the project sometimes just seems to be overwhelming. Question: Is it normal for a beginner programmer to be in this place? Are my employers just expecting too much of a new programmer? As a programmer, am I lacking skills one needs to deal with this? I always feel the need to work in at least a small team, if not big one. I am just not able judge my condition. Also I am paid very low salary. I do work on Saturday as well. Please, help to clarify my judgment. Any suggestions are welcome.

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• Nucleus Research – Research Note: Technology Value Matrix – First Half 2012 Enterprise Applications

  - by LanaProut

  1024x768 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* 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:10.0pt; font-family:"Times New Roman","serif";} The Technology Value Matrix evaluates products that have a global presence and provide core functionality for finance and accounting, human resources, manufacturing, supply chain management, project management, and customer relationship management.  Oracle E-Business Suite and Oracle JD Edwards EnterpriseOne are leaders in the Value Matrix for the first half of 2012.  Click here to view the report.

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• Advice: The first-time interviewer's dilemna

  - by shan23

  I've been working in my first job for about 2 years now, and I've been "asked" to interview a potential teammate (whom I might have to mentor as well) on pretty short notice (2 days from now). Initially, I had been given a free rein(or so I thought, and hence agreed), but today, I've been told "not to pose bookish questions" - implying I can only ask basic programming puzzles and stuff similar to the 'fizbuzz' question. I strongly believe that not knowing basic algorithmic notations(the haziest ideas of space/time complexities) or the tiniest idea of regular expressions would make working with the guy very difficult for anyone. I know i'm asking for a lot here, but according to you, what would be a comprehensive way to test out the absolutely basic requirements of a CS guy(he has 2 yrs of exp) without sounding too pedantic/bookish etc ? It seems it would be legit to ask C questions/simple puzzles only....but I really do want to have something a bit different from "finding loops in linked lists" that has kind of become the opening statement of most techie interviews !! This is a face-to-face interview with about an hour or more of time - I looked at Steve's basic phone-screen questions, and I was wondering if there exists a guide on "basic face-to-face interview questions" that I can use(or compile from the community's answers here). EDIT: The position is mostly for a kernel level C programming job, with some smattering of C++ required for writing the test framework.

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• Scientists Demonstrate First-Person Shooter Games Improve Vision

  - by Jason Fitzpatrick

  Need an excuse to log a few more hours playing Call of Duty or Medal of Honor? Scientists demonstrated improved vision in test subjects after daily doses of first-person shooter games. Scientists at McMaster University took subjects who, as the result of surgery correcting congenital cataracts, had less than 20/20 vision. Subjects played Medal of Honor for a total of 40 hours over the course of 4 weeks before having their vision retested. The results? The CBC reports: The participants found improvements in detail, perception of motion and in low contrast settings. In essence, players could now read about one to one-and-a-half more lines on an optometrist’s eye chart. “We were thrilled,” Lewis said. “It’s very exciting to open up a new world of hope for these people.” How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It

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• Introducing the Industry's First Analytics Machine, Oracle Exalytics

  - by Manan Goel

  Analytics is all about gaining insights from the data for better decision making. The business press is abuzz with examples of leading organizations across the world using data-driven insights for strategic, financial and operational excellence. A recent study on “data-driven decision making” conducted by researchers at MIT and Wharton provides empirical evidence that “firms that adopt data-driven decision making have output and productivity that is 5-6% higher than the competition”. The potential payoff for firms can range from higher shareholder value to a market leadership position. However, the vision of delivering fast, interactive, insightful analytics has remained elusive for most organizations. Most enterprise IT organizations continue to struggle to deliver actionable analytics due to time-sensitive, sprawling requirements and ever tightening budgets. The issue is further exasperated by the fact that most enterprise analytics solutions require dealing with a number of hardware, software, storage and networking vendors and precious resources are wasted integrating the hardware and software components to deliver a complete analytical solution. Oracle Exalytics In-Memory Machine is the world’s first engineered system specifically designed to deliver high performance analysis, modeling and planning. Built using industry-standard hardware, market-leading business intelligence software and in-memory database technology, Oracle Exalytics is an optimized system that delivers answers to all your business questions with unmatched speed, intelligence, simplicity and manageability. Oracle Exalytics’s unmatched speed, visualizations and scalability delivers extreme performance for existing analytical and enterprise performance management applications and enables a new class of intelligent applications like Yield Management, Revenue Management, Demand Forecasting, Inventory Management, Pricing Optimization, Profitability Management, Rolling Forecast and Virtual Close etc. Requiring no application redesign, Oracle Exalytics can be deployed in existing IT environments by itself or in conjunction with Oracle Exadata and/or Oracle Exalogic to enable extreme performance and best in class user experience. Based on proven hardware, software and in-memory technology, Oracle Exalytics lowers the total cost of ownership, reduces operational risk and provides unprecedented analytical capability for workgroup, departmental and enterprise wide deployments. Click here to learn more about Oracle Exalytics.  

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• First steps with Oracle ADF Mobile for iOS and Android

  - by Bruno.Borges

  Oracle announced recently its new Mobile development platform, called Oracle ADF Mobile. With it, you can build truly Java applications, deploy and run real Java code on both Android and iOS with its self-contained Java runtime. It also comes with PhoneGap. which allows you to use any feature your phone offers, like sensors and camera. It's probably the most complete solution for mobile development out there, simply because with Oracle ADF Mobile, you can write Native, Hybrid or Web applications for your smartphone and tablet. Do you want to take a quick look on what can be done with it? Check out this video!  Now, to start with Oracle ADF Mobile, here are the first steps you will have to go through. Download Oracle JDeveloperGo to this link and download the install file for your environment (Windows, Linux-32bit or Generic) Install JDeveloper (of course)If you need help on this, look at the documentation (if you've downloaded 11gR2, click here) Download Oracle ADF Mobile BundleThis is the download page for Oracle ADF Mobile. Accept the license as usual at the top, and follow with the Download button. It will take you to another page, where you will see a table containing a download link. Click on it and it will start downloading a ZIP file. Start JDeveloperStart Oracle JDev. It may self update. Restart the IDE if you are asked to. Go to Help > Check for updates Click Next and make sure you are at the "Source" tab Select "Install From Local File" Select the Oracle ADF Mobile ZIP you downloaded on step 3 Finish the process   Now you have JDeveloper with Oracle ADF Mobile sucessfully installed! There are two great tutorials to start coding with ADF Mobile. Just choose your platform! Android Tutorial iOS Tutorial And have fun! :-) 

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• My first animation - Using SDL.NET C#

  - by Mark

  Hi all! I'm trying to animate a player object in my 2D grid when the user clicks somewhere in the screen. I got the following 4 variables: oX (Current player position X) oY (Current player position Y) dX (Destination X) dY (Destination Y) How can I make sure the player moves in a straight line to the new XY coordinates. The way I'm doing it now is really awfull and causes the player to first move along x axis, and finally in y axis. Can someone give me some guidance with the involved math cause I'm really not sure on how to accomplish this. Thank you for your time. Kind regards, Mark Update: It's working now but whats the right way to check if the current positions are equal to the target position? private static void MovePlayer(double x2, double y2, int duration) { double hX = x2 - m_PlayerPosition.X; double hY = y2 - m_PlayerPosition.Y; double Length = Math.Sqrt(Math.Pow(hX, 2) + Math.Pow(hY, 2)); hX = hX / Length; hY = hY / Length; while (m_PlayerPosition.X != Convert.ToInt32(x2) || m_PlayerPosition.Y != Convert.ToInt32(y2)) { m_PlayerPosition.X += Convert.ToInt32(hX * 1); m_PlayerPosition.Y += Convert.ToInt32(hY * 1); UpdatePlayerLocation(); } }

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• Serious error on first attempts to dual boot Ubuntu 14.04 with Win7

  - by beetle

  I downloaded Ubuntu 14.04 from the website which I saved to my desktop with WinRar. My trial with winrar had expired so I have now tried it with Active@Isoburner but I'm getting no further. I eventually got it burnt onto a DVD(4.7gb) and tried to boot from DVD and normally. Neither way works. It looks like its about to boot but then a message appears saying that a serious error has occurred...the disk drive for /tmp is not ready yet or not present...press I to ignore, s to skip or m for manual... At this point I'm lost and unsure what to do. My laptop Toshiba Equium A210-17I is over 5 or 6 years old. Available space on the Hard Drive is 24gb. 2gb RAM. It originally came with Windows Vista Home Premium edition but about a year ago or more a friend wiped it clean for me as I was having no end of problems with Vista. He installed Windows 7 Ultimate(which I don't have a disc for). How can I resolve this issue and get Ubuntu to boot up? Do I have to install a previous version of Ubuntu first? Any advice or help would be greatly appreciated. Kind regards. Beetle.

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• My first blog post…

  - by steveh99999

  I’ve been meaning to start a blog for a while now, (OK, for several years…..) - finally now, here it begins First post, something really simple but, a wise-man once told me about the best way to improve SQL server performance. Store Less Data. That's it.. that's all there is to it... Over the years, I've seen the following :- -  a 200Gb database which held 3 days data. Once business requirements changed, we were able to hold only 1 days data in this database. -  a table developed by DBAs to hold application table cardinality information - that information was collected at 2 hour intervals every day for 7 years ! After 7 years the DBA space-info table had become the largest table in the database - 60 million rows !  It was a simple change to remove alot of the historical intra-day data and change the schedule to run only once per evening. Suddenly that table held 6 million rows instead of 60 million.... - lots of backup and restore history held in msdb. See this post by Brent Ozar for more details on this issue. Imagine how much faster the backups, DBCC Checks and reindexes ran when the above 3 changes were implemented ?   How often do you review your big databases \ tables to see if you’re actually holding only data that is really required by the business ?

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• How do I reconstruct depth in deferred rendering using an orthographic projection?

  - by Jeremie

  I've been trying to get my world space position of my pixel but I4m missing something. I'm using a orthographic view for a 2.5d game. My depth is linear and this is my code. float3 lightPos = lightPosition; float2 texCoord = PostProjToScreen(PSIn.lightPosition)+halfPixel; float depth = tex2D(depthMap, texCoord); float4 position; position.x = texCoord.x *2-1; position.y = (1-texCoord.y)*2-1; position.z = depth.r; position.w = 1; position = mul(position, inViewProjection); //position.xyz/=position.w; // I comment it but even without it it doesn't work float4 normal = (tex2D(normalMap, texCoord)-.5f) * 2; normal = normalize(normal); float3 lightDirection = normalize(lightPos-position); float att = saturate(1.0f - length(lightDirection) /attenuation); float lightning = saturate (dot(normal, lightDirection)); lightning*= brightness; return float4(lightColor* lightning*att, 1); I'm using a sphere but it's not working the way I want. I reproject the texture properly onto the sphere but the light coordinates in the pixel shader seems to be stuck at zero even if when I move the light volume update properly.

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• Seek first to understand, then to be understood

  - by BuckWoody

  One of the most important (and most difficult) lessons for a technical professional to learn is to not jump to the solution. Perhaps you’ve done this, or had it happen to you. As the person you’re “listening” to is speaking, your mind is performing a B-Tree lookup on possible solutions, and when the final node of the B-Tree in your mind is reached, you blurt out the “only” solution there is to the problem, whether they are done or not. There are two issues here – both of them fatal if you don’t factor them in. First, your B-Tree may not be complete, or correct. That of course leads to an incorrect response, which blows your credibility. People will not trust you if this happens often. The second danger is that the person may modify their entire problem with a single word or phrase. I once had a client explain a detailed problem to me – and I just KNEW the answer. Then they said at the end “well, that’s what it used to do, anyway. Now it doesn’t do that anymore.” Which of course negated my entire solution – happily I had kept my mouth shut until they finished. So practice listening, rather than waiting for your turn to speak. Let the person finish, let them get the concept out, give them your full attention. They’ll appreciate the courtesy, you’ll look more intelligent, and you both may find the right answer to the problem. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• Improving the running time of Breadth First Search and Adjacency List creation

  - by user45957

  We are given an array of integers where all elements are between 0-9. have to start from the 1st position and reach end in minimum no of moves such that we can from an index i move 1 position back and forward i.e i-1 and i+1 and jump to any index having the same value as index i. Time Limit : 1 second Max input size : 100000 I have tried to solve this problem use a single source shortest path approach using Breadth First Search and though BFS itself is O(V+E) and runs in time the adjacency list creation takes O(n2) time and therefore overall complexity becomes O(n2). is there any way i can decrease the time complexity of adjacency list creation? or is there a better and more efficient way of solving the problem? int main(){ vector<int> v; string str; vector<int> sets[10]; cin>>str; int in; for(int i=0;i<str.length();i++){ in=str[i]-'0'; v.push_back(in); sets[in].push_back(i); } int n=v.size(); if(n==1){ cout<<"0\n"; return 0; } if(v[0]==v[n-1]){ cout<<"1\n"; return 0; } vector<int> adj[100001]; for(int i=0;i<10;i++){ for(int j=0;j<sets[i].size();j++){ if(sets[i][j]>0) adj[sets[i][j]].push_back(sets[i][j]-1); if(sets[i][j]<n-1) adj[sets[i][j]].push_back(sets[i][j]+1); for(int k=j+1;k<sets[i].size();k++){ if(abs(sets[i][j]-sets[i][k])!=1){ adj[sets[i][j]].push_back(sets[i][k]); adj[sets[i][k]].push_back(sets[i][j]); } } } } queue<int> q; q.push(0); int dist[100001]; bool visited[100001]={false}; dist[0]=0; visited[0]=true; int c=0; while(!q.empty()){ int dq=q.front(); q.pop(); c++; for(int i=0;i<adj[dq].size();i++){ if(visited[adj[dq][i]]==false){ dist[adj[dq][i]]=dist[dq]+1; visited[adj[dq][i]]=true; q.push(adj[dq][i]); } } } cout<<dist[n-1]<<"\n"; return 0; }

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• What exactly is an SEO badge and how does it help my SEO?

  - by ben geit

  Hi everyone! I'm using attracta.com as an SEO tool to try and improve my SEO. They say that I should use an SEO badge to improve my ranking but I don't really understand what it is or what it does (a quick Google search didn't provide too much information). I was just wondering if any of you guys here at stackoverflow had any information they would be able to impart to me. Thanks for your help!

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• Is the W3 standard a major factor when google decides SERP position?

  - by Camran

  I have a dynamic php website which index only has around 800 errors according to the w3 validator online. I have tried checking major websites like ebay, stackoverflow and others also, all with around 400 errors. So my first thought is, what good is that validator when it always displays errors? Secondly, will the errors affect my SERP ranking? ie, will me fixing these errors as good as I can increase my Google search position? Thanks

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• Google Traffic droppend at christmas and is steady since?

  - by Joe Hopfgartner

  as you can see in the picture my search engine traffic dropped exactly at christmas and is steady since. has anybody experienced something similar or has a possible explanation? at first i tought, well... its christmas and its understandable that people devote time to their families and other things than surfing the net, but now everything is over and work week has begun and well... very strange. i have no idea.

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• SQL SERVER – Introduction to FIRST _VALUE and LAST_VALUE – Analytic Functions Introduced in SQL Server 2012

  - by pinaldave

  SQL Server 2012 introduces new analytical functions FIRST_VALUE() and LAST_VALUE(). This function returns first and last value from the list. It will be very difficult to explain this in words so I’d like to attempt to explain its function through a brief example. Instead of creating a new table, I will be using the AdventureWorks sample database as most developers use that for experiment purposes. Now let’s have fun following query: USE AdventureWorks GO SELECT s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty, FIRST_VALUE(SalesOrderDetailID) OVER (ORDER BY SalesOrderDetailID) FstValue, LAST_VALUE(SalesOrderDetailID) OVER (ORDER BY SalesOrderDetailID) LstValue FROM Sales.SalesOrderDetail s WHERE SalesOrderID IN (43670, 43669, 43667, 43663) ORDER BY s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty GO The above query will give us the following result: What’s the most interesting thing here is that as we go from row 1 to row 10, the value of the FIRST_VALUE() remains the same but the value of the LAST_VALUE is increasing. The reason behind this is that as we progress in every line – considering that line and all the other lines before it, the last value will be of the row where we are currently looking at. To fully understand this statement, see the following figure: This may be useful in some cases; but not always. However, when we use the same thing with PARTITION BY, the same query starts showing the result which can be easily used in analytical algorithms and needs. Let us have fun through the following query: Let us fun following query. USE AdventureWorks GO SELECT s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty, FIRST_VALUE(SalesOrderDetailID) OVER (PARTITION BY SalesOrderID ORDER BY SalesOrderDetailID) FstValue, LAST_VALUE(SalesOrderDetailID) OVER (PARTITION BY SalesOrderID ORDER BY SalesOrderDetailID) LstValue FROM Sales.SalesOrderDetail s WHERE SalesOrderID IN (43670, 43669, 43667, 43663) ORDER BY s.SalesOrderID,s.SalesOrderDetailID,s.OrderQty GO The above query will give us the following result: Let us understand how PARTITION BY windows the resultset. I have used PARTITION BY SalesOrderID in my query. This will create small windows of the resultset from the original resultset and will follow the logic or FIRST_VALUE and LAST_VALUE in this resultset. Well, this is just an introduction to these functions. In the future blog posts we will go deeper to discuss the usage of these two functions. By the way, these functions can be applied over VARCHAR fields as well and are not limited to the numeric field only. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Function, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• First Ever MySQL on Windows Online Forum - March 16, 2011

  - by monica.kumar

  72 1024x768 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:10.0pt; font-family:"Cambria","serif";} Now you might be thinking…what’s an Online Forum? Well, think of it as a virtual conference, where you can attend a series of presentations about a given topic, from the comfort of your own office/home. On Wednesday March 16th, from 9.00 am PT to 12.00, we will be running the first ever MySQL Online Forum, dedicated to MySQL on Windows. Register now to learn how you can reduce your database TCO on Windows by up to 90% while increasing manageability & flexibility!   Oracle’s MySQL Vice President of Engineering Tomas Ulin will kick off a comprehensive agenda of presentations enabling you to better understand:   How you can save up to 90% by using MySQL on WindowsWhy the world’s most popular open source database is extremely popular on Windows, both for enterprise users and for embedding by ISVs How MySQL is a great fit for the Windows environment, and what are the upcoming milestones to make MySQL even better on the Microsoft platform What are the visual tools at your disposal to effectively develop, deploy and manage MySQL applications on Windows How you can deliver highly available business critical Windows based MySQL applications Why Security Solutions Provider SonicWall selected MySQL over Microsoft SQL Server, and how they successfully deliver MySQL based solutions Plus, as we’ll have Live Chat On during the entire forum, you’ll be able to ask questions at any time to MySQL experts online. Register Now!   Whether you’re an ISV or an enterprise user, either already running MySQL on Windows or simply considering it, join us and learn how you can get performance, lower TCO and increased manageability & flexibility with MySQL on Windows!

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• Using SEO to hide a website in a specific location?

  - by mickburkejnr

  Hi everyone, A friend of mine wants to build a website, but doesn't want people in the West Midlands area of the UK to be able to see it, but wants areas outside of the West Midlands to be able to see it. Is this possible? I know SEO can be used to target specific countries to improve search results, but could it be used to target specific areas inside a country and to basically remove the website from Google listings for a specific area? Cheers!

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• Multiple site URLs now showing up in SERPs

  - by Scott Helme

  Recently when you search for me on Google several URLs from my blog have started showing up, instead of just the main URL. 1) https://scotthelme.co.uk/ 2) https://scotthelme.co.uk/category/wifi-pineapple-2/? 3) https://scotthelme.co.uk/wifi-pineapple-karma-sslstrip/ Is there a reason this starts happening? I have contemplated doing something to remove them but is it better to occupy the top 3 spots instead of just the top spot? Should I just leave them there?

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• Beginning with first project on game development [closed]

  - by Tsvetan

  Today is the day I am going to start my first real game project. It will be a Universe simulator. Basically, you can build anything from tiny meteor to quazars and universes. It is going to be my project for an olympiad in IT in my country and I really want to make it perfect(at least a bronze medal). So, I would like to ask some questions about organization and development methodologies. Firstly, my plan is to make a time schedule. In it I would write my plans for the next month or two(because that is the time I have). With this exact plan I hope to make my organisation at its best. Of course, if I am doing sth faster than the schedule I would involve more features for the game and/or continue with the tempo I have. Also, for the organisation I would make a basic pseudocode(maybe) and just rewrite it so it is compilable. Like a basic skeleton of everything. The last is an idea I tought of in the moment, but if it is good I will use it. Secondly, for the development methodologies, obviously, I think of making object-oriented code and make everything perfect(a lot of testing, good code, documentation etc.). Also, I am going to make my own menu system(I read that OpenGL hasn't got very good one). Maybe I would implement it with an xml file, holding the info about position of buttons, text boxes, images and everything. Maybe I would do a specific CSS for it and so on. I think that is very good way of doing the menu system, because it makes the presentation layer separate of the logic. But, if there is a better way, I would do it the better way. For the logic, well, I don't have much to say. OO code, testing, debuging, good and fast algorithms and so on. Also, a good documentation must be written and this is the area I need to make some research in. I think that is for now. I hope I have been enough descriptive. If more questions come on my mind, I will ask them. Edit: I think of blogging every part of the project, or at least writing down everything in a file or something like that. My question is: Is my plan of how to do everything around the project good? And if not, what is necessary to be improved and what other things I can involve for making the project good.

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