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• Should I add rel nofollow to internal links which already have meta noindex?

  - by CamSpy

  Let's say I have a products page with listing producsts and the page has pagination. I would like the 1st page to have all the SE ranking weight so I decided to put meta noindex on the rest of the paginated pages (from page 2 to N). My common sense says that if I don't want pages to not get indexed, I shouldn't also pass link/PR juice to these pages. (Is that smart?) What happens if I set rel="nofollow" for all pagination links from page 2 to page N?

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• Internet connection crashes while wifi / lan stay connected

  - by pirad

  I am connected to a router by wifi or lan. But every few moments (sometimes seconds, sometimes half an hour) my connection to the internet breaks down. So in one moment I can surf with my firefox and have ping times of 20 ms (wifi) to the google server. And in the next moment I can't open any pages in any browser and the ping shows no new messages first and then "Destination Host Unreachable". This is especially odd as another computer or my smart phone stays connected at the same time to the same network and seems to notice nothing. So I have a problem independend of wifi or lan drivers but with something else. Where should I look for logs that could tell me more information? I can't find some in syslog. Just if I reconnect to the router (wich works for another few moments) there are a lot of informations. But everythin is okay then.

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• T-SQL Tuesday #028: Whaddya Mean, “Not Your Job?”

  - by merrillaldrich

  This T-SQL Tuesday, hosted by Argenis Fernandez ( Blog | Twitter ) is devoted to the question, “Are you a Jack-of-all-Trades? Or a specialist?” This question really hits home for me, on a number of levels. (Aside: I have huge respect for Argenis – he’s smart, funny, no-nonsense, very accomplished. If you don’t follow him, do.) If you have read any of my previous ramblings on this blog, you may know I was originally educated as an architect – the bricks and mortar kind, not the information systems...(read more)

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• Ubuntu on galaxy note II

  - by user131918

  I recently bought Samsung Galaxy Note II on android 4.1. It was my idea to try to turn it into a pc and I bought a micro-keyboard for the same purpose. I had hoped there would be an app for OpenOffice, but there isn't. Now i see that ubuntu may be installed on smart phones. I already have ubuntu - including OpenOffice - on my laptop. My question is: is it possible to install ubuntu to galaxy note II, and if so, does it include office programs and other ubuntu programs? Thank You And thank you so much for an alternative to Microsoft.

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• Microformats, Reviews and Duplicate Content

  - by Nicholas

  Let's say I have a site that sells widgets, and the URL structure is like so: /[type-of-widget]/[sub-type]/[widget-name]/ So, a URL for a widget might be: /screwdrivers/philips-screwdrivers/acme-big-screwdriver/ We show reviews on the widget page, and use the appropriate microformat data so Google knows it's a review, etc. Now, what if I want to show random reviews in the "sub-type" and "type-of-widget" landing pages? Will Google ding me for duplicate content, or is it smart enough to know (based on microformat data/etc.) that this is not duplicate content?

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• JavaOne India Technical Sessions

  - by Tori Wieldt

  If you’re working with Java technology, it pays to go straight to the source for your information. At JavaOne and Oracle Develop India, you’ll be able to choose from more than 90 sessions, hands-on labs, keynotes, and demos delivered by today’s most knowledgeable Java experts. You'll also hear the most up-to-date information on current releases and future directions of Java standards and technologies, and see the latest Java developer tools and solutions. Register now! Technical sessions include: Project Lambda: To Multicore and Beyond Introduction to JavaFX 2.0 GlassFish REST Administration Back End: An Insider Look at a Real REST Application Java-Powered Home Gateway: Basis of the Next-Generation Smart Home Mobile Java Evolution Cloud-Enabled Java Persistence Visit the JavaOne India web pages for a complete list of conference sessions. See you there!

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• How can I create a launcher and also have it in the apps toolbar

  - by Michael Durrant

  I want an app icon for smart git. I can create one on my desktop with $ gnome-desktop-item-edit ~/ --create-new and selecting the smartgit.sh app. That works for an icon on the desktop. How can I move that icon / create a new one in my applications toolbar (so not just on the desktop)? In my case that is the Unity applications toolbar (which I've moved to the left). I've tried dragging and dropping it there but it didn't work. I can make it appear in the dash home by adding an entry this way New App doesn't appear in Unity dash but I still can't move it to be an app icon in the apps toolbar.

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• wireless not working, but wired does

  - by user211762

  First of all I'm new to Ubuntu, just bought a laptop with Ubuntu yesterday. I disable wireless networking in the upper right corner, and I don't have option to enable it back. I tried a lot of things and none is seems to work: I installed Wicd network manger, and it says no wireless network found, but i assure you there are several of them as my smart tv can detect them. when I type rfkill list, I get this: 0: dell-wifi: Wireless LAN Soft blocked: no Hard blocked: no when I type ifconfig wlan0, I get this: wlan0: error fetching interface information: Device not found

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• La console Xbox 360 s'ouvre au Web, la mise à jour de la Xbox Live introduit Internet Explorer 10

  La console Xbox 360 s'ouvre au Web, la mise à jour de la Xbox Live introduit Internet Explorer 10 Microsoft apporte le Web sur les téléviseurs avec la mise à jour de la Xbox Live. L'éditeur a commencé le déploiement de la nouvelle version du tableau de bord de la console de jeux aux abonnés Xbox Live Gold dans le monde entier. La nouveauté phare de cette mise à jour est l'introduction du navigateur Internet Explorer 10. IE sur Xbox permettra aux utilisateurs de naviguer sur le Web depuis leur téléviseur, épingler leurs favoris et regarder des vidéos HTML5. Grâce à la nouvelle application Xbox Smart Glass qui sortira au même moment que Windows 8 le 26 octobre prochai...

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• Android continue de gagner du terrain sur l'iPhone, d'après une étude des parts de marché des smartp

  Android continue de gagner du terrain sur l'iPhone, d'après une étude des parts de marché des smartphones ComScore vient de publier ses derniers chiffres relatifs à l'étude du marché des smartphones. Et, premier constat, ces données confirment la tendance qui émergeait le mois précédent : les parts de marché d'Android grignotent de plus en plus celles de l'iPhone, tandis que celles de Palm (- 1.8 %) et de Microsoft (- 4%) continuent de chuter. L'étude menée par l'institut d'analyses américain, compare les données des parts de marché des téléphones mobiles de septembre/octobre/novembre 2009 avec celles de decembre/janvier/février 2010. Conclusion : 45.4 millions d'américains utilisent des smart...

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• Plagued by multithreaded bugs

  - by koncurrency

  On my new team that I manage, the majority of our code is platform, TCP socket, and http networking code. All C++. Most of it originated from other developers that have left the team. The current developers on the team are very smart, but mostly junior in terms of experience. Our biggest problem: multi-threaded concurrency bugs. Most of our class libraries are written to be asynchronous by use of some thread pool classes. Methods on the class libraries often enqueue long running taks onto the thread pool from one thread and then the callback methods of that class get invoked on a different thread. As a result, we have a lot of edge case bugs involving incorrect threading assumptions. This results in subtle bugs that go beyond just having critical sections and locks to guard against concurrency issues. What makes these problems even harder is that the attempts to fix are often incorrect. Some mistakes I've observed the team attempting (or within the legacy code itself) includes something like the following: Common mistake #1 - Fixing concurrency issue by just put a lock around the shared data, but forgetting about what happens when methods don't get called in an expected order. Here's a very simple example: void Foo::OnHttpRequestComplete(statuscode status) { m_pBar->DoSomethingImportant(status); } void Foo::Shutdown() { m_pBar->Cleanup(); delete m_pBar; m_pBar=nullptr; } So now we have a bug in which Shutdown could get called while OnHttpNetworkRequestComplete is occuring on. A tester finds the bug, captures the crash dump, and assigns the bug to a developer. He in turn fixes the bug like this. void Foo::OnHttpRequestComplete(statuscode status) { AutoLock lock(m_cs); m_pBar->DoSomethingImportant(status); } void Foo::Shutdown() { AutoLock lock(m_cs); m_pBar->Cleanup(); delete m_pBar; m_pBar=nullptr; } The above fix looks good until you realize there's an even more subtle edge case. What happens if Shutdown gets called before OnHttpRequestComplete gets called back? The real world examples my team has are even more complex, and the edge cases are even harder to spot during the code review process. Common Mistake #2 - fixing deadlock issues by blindly exiting the lock, wait for the other thread to finish, then re-enter the lock - but without handling the case that the object just got updated by the other thread! Common Mistake #3 - Even though the objects are reference counted, the shutdown sequence "releases" it's pointer. But forgets to wait for the thread that is still running to release it's instance. As such, components are shutdown cleanly, then spurious or late callbacks are invoked on an object in an state not expecting any more calls. There are other edge cases, but the bottom line is this: Multithreaded programming is just plain hard, even for smart people. As I catch these mistakes, I spend time discussing the errors with each developer on developing a more appropriate fix. But I suspect they are often confused on how to solve each issue because of the enormous amount of legacy code that the "right" fix will involve touching. We're going to be shipping soon, and I'm sure the patches we're applying will hold for the upcoming release. Afterwards, we're going to have some time to improve the code base and refactor where needed. We won't have time to just re-write everything. And the majority of the code isn't all that bad. But I'm looking to refactor code such that threading issues can be avoided altogether. One approach I am considering is this. For each significant platform feature, have a dedicated single thread where all events and network callbacks get marshalled onto. Similar to COM apartment threading in Windows with use of a message loop. Long blocking operations could still get dispatched to a work pool thread, but the completion callback is invoked on on the component's thread. Components could possibly even share the same thread. Then all the class libraries running inside the thread can be written under the assumption of a single threaded world. Before I go down that path, I am also very interested if there are other standard techniques or design patterns for dealing with multithreaded issues. And I have to emphasize - something beyond a book that describes the basics of mutexes and semaphores. What do you think? I am also interested in any other approaches to take towards a refactoring process. Including any of the following: Literature or papers on design patterns around threads. Something beyond an introduction to mutexes and semaphores. We don't need massive parallelism either, just ways to design an object model so as to handle asynchronous events from other threads correctly. Ways to diagram the threading of various components, so that it will be easy to study and evolve solutions for. (That is, a UML equivalent for discussing threads across objects and classes) Educating your development team on the issues with multithreaded code. What would you do?

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• 'outlier': I/O ???

  - by katsumii

  ??? outlier ???????????????????????????????? - Wikipedia???(????)????????????????????????????????????????????????????????????????outlier site:docs.oracle.com - Google SearchOutlier Update Percent (MRP and Supply Chain Planning Help) Oracle Demantra Implementation Guide OraSVMClassificationSettings (Oracle Data Mining Java API ... Defining a Forecast Set (MRP and Supply Chain Planning Help)????????????????????? I/O ???????????? ????????? 'Exadata' ? 'outlier' ???????????????????????????????Guy Harrison - Yet Another Database Blog - Exadata Smart Flash Logging–Outliersflash log feature was effective in eliminating or at least reducing very extreme outlying redo log sync times.????????? Solaris 11.1 ?? I/O ??????????????????????Oracle Announces Availability of Oracle Solaris 11.1 and Oracle Solaris Cluster 4.1Oracle Solaris 11.1 exposes OracleSolaris DTraceI/O interfaces that allow an Oracle Database administrator to identify I/O outliers and subsequently isolate network or storage bottlenecks.

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• Oracle WebLogic Server 11g(10.3.4) ?????????

  - by Natsuki.Wakabayashi

  Fusion Middleware 11g(11.1.1.4.0)?????????????Oracle WebLogic Server 11g(10.3.4)????????????????????????????????????????????????????"Get Started"???????????????????????????? WebLogic Server????·??? WebLogic Server???? ????·???????????????·??? ?????????????????? ?????????·????·??? Oracle WebLogic Server?????????·?????? ?????????·??? Oracle WebLogic Server??? WebLogic Server?????????    Smart Update????????????·?????????? ???????·??? Oracle WebLogic Server???? ?????????????????????????????????~~ ??????????????????????????Oracle WebLogic Server 11g(10.3.4)??????

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• Silverlight: DataContractSerializer cannot handle read only collection properties

  - by moonground.de

  Hey Stackoverflowers :) For our Silverlight Project (SL4) I'm using a Model which might contain Lists (IList<AnotherModel>). According to good practice and rule CA2227:CollectionPropertiesShouldBeReadOnly the IList properties don't have a public setter. We serialize the Model using the DataContractSerializer which is working. But when I try to deserialize, a SecurityException is thrown by DataContractSerializer's ReadObject(Stream) Method, complaining that the target property (pointing to the IList property) cannot be set due to a missing public setter. Since the DataContractSerializer is sealed and neither extendable nor flexible so I currently see no chance to add some kind of additional rules which allow to deserialize the ILists using a foreach-loop on Add() method or some other method of transferring the collection items. I've also tried to dig into DataContractSerializer source (using Reflector) to create a little fork but it looks like i'd have to dig very deep and replicating whole serialization classes doesn't seem to be a viable solution. Do you see another chance to serialize a List with no public setter using the DataContractSerializer? Thank you very much in advance for your ideas! Thomas

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• Enumerating .NET assembly resources at runtime

  - by Alex_P

  I have a resource assembly with image files in it that are built using Resource or Content build action. This makes these files accessible using the Uris. However I cannot find the way to enumerate such resources. If I set the build action to Embedded Resource it becomes possible to enumerate the files with the following code: string[] resources = Assembly.GetExecutingAssembly().GetManifestResourceNames(); but it in turn makes these files inaccessible using Uris. The question is - how to enumerate resources that are compiled with either Resource or Content build action? NOTE: As Thomas Levesque pointed out it is possible to enumerate such resources by leveraging the AssemblyAssociatedContentFileAttribute, but it seems to only work for WPF Application assemblies and not for class library ones. So the question is still open.

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• ASP.NET login control - can I add the FailureText as an item in a ValidationSummary?

  - by tkahn

  I'm currently working with the ASP.NET login control. I can set a custom failure text and I can add a literal on the page where the failure text is displayed if the login fails. I also have a validation summary on the page in which I collect all errors that can occur (for the moment it just validates that the user has entered a login name and a password. It would be really nice if I could add the failure text of the login control as an item in the validation summary, but I'm not sure if this is even possible? Hoping that the massive brainpower of stackoverflow can give me some pointers? Thanks! /Thomas Kahn PS. I'm coding in C#.

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• Elisp performance on Windows and Linux

  - by JasonFruit

  I have the following dead simple elisp functions; the first removes the fill breaks from the current paragraph, and the second loops through the current document applying the first to each paragraph in turn, in effect removing all single line-breaks from the document. It runs fast on my low-spec Puppy Linux box using emacs 22.3 (10 seconds for 600 pages of Thomas Aquinas), but when I go to a powerful Windows XP machine with emacs 21.3, it takes almost an hour to do the same document. What can I do to make it run as well on the Windows machine with emacs 21.3? (defun remove-line-breaks () "Remove line endings in a paragraph." (interactive) (let ((fill-column 90002000)) (fill-paragraph nil))) : (defun remove-all-line-breaks () "Remove all single line-breaks in a document" (interactive) (while (not (= (point) (buffer-end 1))) (remove-line-breaks) (next-line 1))) Forgive my poor elisp; I'm having great fun learning Lisp and starting to use the power of emacs, but I'm new to it yet.

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• Ruby on rails - Radrails IDE - mysql issues.

  - by ThomasReggi

  I have been trying to get Ruby on Rails to migrate a database for the good part of today, the problems all seem to result with this issue, can someone please help! If its a radrails specific problem I guess Ill take this to their forums. Something is telling me this is an easy fix. >rake db:migrate (in C:/Users/Thomas/My Documents/Aptana RadRails Workspace/rp) !!! The bundled mysql.rb driver has been removed from Rails 2.2. Please install the mysql gem and try again: gem install mysql. rake aborted! 126: The specified module could not be found. - C:/Ruby/lib/ruby/gems/1.8/gems/mysql-2.8.1-x86-mswin32/lib/1.8/mysql_api.so (See full trace by running task with --trace)

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• Round prices up to nearest 5 after conversion in oscommerce

  - by Rhyso

  Hi there, A conversion question relating to prices in oscommerce: I am needing for a custom currency conversion to round the USD prices up to the nearest 5$ to avoid prices being displayed at silly prices such as $263. I am trying to convert to an int and round the following line : $curr-display_price($listing['products_price'], tep_get_tax_rate($listing['products_tax_class_id'])); ( as for some reason the price is displayed as a string, im guessing to include the currency sign) However not having much luck. Does anybody know where the root conversion takes place as it might be easier for me to round() or ceil() from there when it is a raw integer Or any other ideas of how I can round the conversion? Thanks for any help Rhys Thomas

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• MySQL: SELECT a Winner, returning their rank

  - by incrediman

  Earlier I asked this question, which basically asked how to list 10 winners in a table with many winners, according to their points. This was answered. Now I'm looking to search for a given winner X in the table, and find out what position he is in, when the table is ordered by points. For example, if this is the table: Winners: NAME:____|__POINTS: Winner1 | 1241 Winner2 | 1199 Sally | 1000 Winner4 | 900 Winner5 | 889 Winner6 | 700 Winner7 | 667 Jacob | 623 Winner9 | 622 Winner10 | 605 Winner11 | 600 Winner12 | 586 Thomas | 455 Pamela | 434 Winner15 | 411 Winner16 | 410 These are possible inputs and outputs for what I want to do: Query: "Sally", "Winner12", "Pamela", "Jacob" Output: 3 12 14 623 How can I do this? Is it possible, using only a MySQL statement? Or do I need PHP as well? This is the kind of thing I want: WHEREIS FROM Winners WHERE Name='Sally' LIMIT 1 Ideas?

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• Make is more OOPey - good structure?

  - by Tom

  Hi, I just want advice on whether I could improve structure around a particular class which handles all disk access functions The structure of my program is that I have a class called Disk which gets data from flatfiles and databases on a, you guessed it, hard disk drive. I have functions like LoadTextFileToStringList, WriteStringToTextFile, DeleteLineInTextFile etc which are kind of "generic methods" In the same class I also have some more specific methods such as GetXFromDisk where X might be a particular field in a database table/query. Should I separate out the generic methods from the specialised. Should I make another class which inherits the generic methods. At the moment my class is static as there is no need to have an internal state of the class. I'm not really OOPing am I? Thanks Thomas

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• How active record is automatically setting up the autoincremental value of ID?

  - by piemesons

  Here this is what we are doing:-- an_order = Order.new an_order.name = "Dave Thomas" an_order.email = "[email protected]" an_order.address = "123 Main St" an_order.pay_type = "check" an_order.save Now it will insert a new row in orders table right. I m having a ID column in that table. Now suppose after inserting this record the value of the ID corresponding to this record is 100. Now how this 100 value came to know? Does the previous value of ID ie 99 (Suppose) is stored somewhere in some variable/file in the ORM layer or before inserting this value a query was fired to know about the last inserted value or database is itself doing that or anything else???

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• search for a winner, returning their rank

  - by incrediman

  Earlier I asked this question, which basically asked how to list 10 winners in a table with many winners, according to their points. This was answered. Now I'm looking to search for a given winner X in the table, and find out what position he is in, when the table is ordered by points. For example, if this is the table: Winners: NAME:____|__POINTS: Winner1 | 1241 Winner2 | 1199 Sally | 1000 Winner4 | 900 Winner5 | 889 Winner6 | 700 Winner7 | 667 Jacob | 623 Winner9 | 622 Winner10 | 605 Winner11 | 600 Winner12 | 586 Thomas | 455 Pamela | 434 Winner15 | 411 Winner16 | 410 These are possible inputs and outputs for what I want to do: Query: "Sally", "Winner12", "Pamela", "Jacob" Output: 3 12 14 623 How can I do this? Is it possible, using only a MySQL statement? Or do I need PHP as well? This is the kind of thing I want: WHEREIS FROM Winners WHERE Name='Sally' LIMIT 1 Ideas?

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• NHibernate - EventListener for SaveOrUpdateCopy

  - by t-kehl

  Hi. I do Update with SaveOrUpdateCopy(). Now, I have attached an event for this: this.EventListeners.SaveOrUpdateCopyEventListeners = new IMergeEventListener[] { new AuditableSaveOrUpdateCopyEventListener() }; In the AuditableSaveOrUpdateCopyEventListener, I have inherited from DefaultSaveOrUpdateCopyEventListener and overriden OnMerge(): public class AuditableSaveOrUpdateCopyEventListener : DefaultSaveOrUpdateCopyEventListener { public override void OnMerge(MergeEvent evt) { this.AddAuditableData(evt); base.OnMerge(evt); } public override void OnMerge(MergeEvent evt, System.Collections.IDictionary copyCache) { this.AddAuditableData(evt); base.OnMerge(evt, copyCache); } private void AddAuditableData(MergeEvent evt) { var entity = evt.Original as AuditableEntityBase; if (entity != null) { ... } } } But when I now change properties in entity, they will not be saved to the database. Can someone give me a tip, how I can add my auditable-data for SaveOrUpdateCopy? Thank you. Best Regards, Thomas

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• stored procedure to find value in 2 columns out of 3

  - by user1510533

  I am putting in the samle date and i am supposed to do something similar what i am asking. I want to run a query that would pull values in any two columns out 3 if it has a 1 or if any one column has a 1 it will return just those results. However it should search all three columns and in any of the three columns where it found value as 1 it should return that result. Can anyone please help me with this. Thanks in advance. ID Patient Patient Name prio prio2 prio3 ------------------------------------------------- 1 101563 Robert Riley 1 1 1 2 101583 Cody Ayers 1 0 1 3 101825 Jason Lawler 0 0 1 4 101984 Dustin Lumis 1 0 0 5 102365 Stacy smith 1 0 0 6 102564 Frank Milon 1 0 0 7 102692 Thomas Kroning 1 0 0 8 102856 Andrew Philips 1 0 0 9 102915 Alice Davies 0 0 1 10 103785 Jon Durley 0 0 1 11 103958 Clayton Folsom 1 1 1 12 104696 Michelle Holsley 1 1 1 13 104983 Teresa Jones 1 0 1 14 105892 Betsy Prat 1 1 0 15 106859 Casey Ayers 1 1 0

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