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• Move Firefox’s Tab Bar to the Top

  - by Asian Angel

  Would you prefer to have Firefox’s Tab Bar located at the top of the browser instead of its’ default location? See how easy it is to move the Tab Bar back and forth between the top and current positions “flip switch style” with the Tabs On Top extension. Note: Tabs On Top extension supports multi-row feature in TabMixPlus. Before You can see the “Tab Bar” in its’ default location here in our test browser…not bad but what if you prefer having it located at the top of the browser? After As soon as you have installed the extension and restarted Firefox the “Tab Bar” will have automatically moved to the top of the browser. You will most likely notice a slight decrease in tab height as well (which occurred during our tests). To move the “Tab Bar” back and forth between the top and default locations just select/deselect “Tab Bar on top” in the “Toolbars Context Menu”. You can quickly reduce the size of the upper UI after hiding some of the other toolbars and go even further if you like using extensions that will hide the “Title Bar”. This is definitely a good UI matching extension for anyone using a Chrome based theme in Firefox. Conclusion If you are unhappy with default location for Firefox’s “Tab Bar” then this extension will certainly provide an alternative option for you. Links Download the Tabs On Top extension (Mozilla Add-ons) Similar Articles Productive Geek Tips Use the Keyboard to Move Items Up or Down in Microsoft WordAdd Copy To / Move To on Windows 7 or Vista Right-Click MenuBring Misplaced Off-Screen Windows Back to Your Desktop (Keyboard Trick)Moving Your Personal Data Folders in Windows Vista the Easy WayAdd Copy To / Move To to the Windows Explorer Right Click Menu TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Live PDF Searches PDF Files and Ebooks Converting Mp4 to Mp3 Easily Use Quick Translator to Translate Text in 50 Languages (Firefox) Get Better Windows Search With UltraSearch Scan News With NY Times Article Skimmer SpeedyFox Claims to Speed up your Firefox

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• Metro: Promises

  - by Stephen.Walther

  The goal of this blog entry is to describe the Promise class in the WinJS library. You can use promises whenever you need to perform an asynchronous operation such as retrieving data from a remote website or a file from the file system. Promises are used extensively in the WinJS library. Asynchronous Programming Some code executes immediately, some code requires time to complete or might never complete at all. For example, retrieving the value of a local variable is an immediate operation. Retrieving data from a remote website takes longer or might not complete at all. When an operation might take a long time to complete, you should write your code so that it executes asynchronously. Instead of waiting for an operation to complete, you should start the operation and then do something else until you receive a signal that the operation is complete. An analogy. Some telephone customer service lines require you to wait on hold – listening to really bad music – until a customer service representative is available. This is synchronous programming and very wasteful of your time. Some newer customer service lines enable you to enter your telephone number so the customer service representative can call you back when a customer representative becomes available. This approach is much less wasteful of your time because you can do useful things while waiting for the callback. There are several patterns that you can use to write code which executes asynchronously. The most popular pattern in JavaScript is the callback pattern. When you call a function which might take a long time to return a result, you pass a callback function to the function. For example, the following code (which uses jQuery) includes a function named getFlickrPhotos which returns photos from the Flickr website which match a set of tags (such as “dog” and “funny”): function getFlickrPhotos(tags, callback) { $.getJSON( "http://api.flickr.com/services/feeds/photos_public.gne?jsoncallback=?", { tags: tags, tagmode: "all", format: "json" }, function (data) { if (callback) { callback(data.items); } } ); } getFlickrPhotos("funny, dogs", function(data) { $.each(data, function(index, item) { console.log(item); }); }); The getFlickr() function includes a callback parameter. When you call the getFlickr() function, you pass a function to the callback parameter which gets executed when the getFlicker() function finishes retrieving the list of photos from the Flickr web service. In the code above, the callback function simply iterates through the results and writes each result to the console. Using callbacks is a natural way to perform asynchronous programming with JavaScript. Instead of waiting for an operation to complete, sitting there and listening to really bad music, you can get a callback when the operation is complete. Using Promises The CommonJS website defines a promise like this (http://wiki.commonjs.org/wiki/Promises): “Promises provide a well-defined interface for interacting with an object that represents the result of an action that is performed asynchronously, and may or may not be finished at any given point in time. By utilizing a standard interface, different components can return promises for asynchronous actions and consumers can utilize the promises in a predictable manner.” A promise provides a standard pattern for specifying callbacks. In the WinJS library, when you create a promise, you can specify three callbacks: a complete callback, a failure callback, and a progress callback. Promises are used extensively in the WinJS library. The methods in the animation library, the control library, and the binding library all use promises. For example, the xhr() method included in the WinJS base library returns a promise. The xhr() method wraps calls to the standard XmlHttpRequest object in a promise. The following code illustrates how you can use the xhr() method to perform an Ajax request which retrieves a file named Photos.txt: var options = { url: "/data/photos.txt" }; WinJS.xhr(options).then( function (xmlHttpRequest) { console.log("success"); var data = JSON.parse(xmlHttpRequest.responseText); console.log(data); }, function(xmlHttpRequest) { console.log("fail"); }, function(xmlHttpRequest) { console.log("progress"); } ) The WinJS.xhr() method returns a promise. The Promise class includes a then() method which accepts three callback functions: a complete callback, an error callback, and a progress callback: Promise.then(completeCallback, errorCallback, progressCallback) In the code above, three anonymous functions are passed to the then() method. The three callbacks simply write a message to the JavaScript Console. The complete callback also dumps all of the data retrieved from the photos.txt file. Creating Promises You can create your own promises by creating a new instance of the Promise class. The constructor for the Promise class requires a function which accepts three parameters: a complete, error, and progress function parameter. For example, the code below illustrates how you can create a method named wait10Seconds() which returns a promise. The progress function is called every second and the complete function is not called until 10 seconds have passed: (function () { "use strict"; var app = WinJS.Application; function wait10Seconds() { return new WinJS.Promise(function (complete, error, progress) { var seconds = 0; var intervalId = window.setInterval(function () { seconds++; progress(seconds); if (seconds > 9) { window.clearInterval(intervalId); complete(); } }, 1000); }); } app.onactivated = function (eventObject) { if (eventObject.detail.kind === Windows.ApplicationModel.Activation.ActivationKind.launch) { wait10Seconds().then( function () { console.log("complete") }, function () { console.log("error") }, function (seconds) { console.log("progress:" + seconds) } ); } } app.start(); })(); All of the work happens in the constructor function for the promise. The window.setInterval() method is used to execute code every second. Every second, the progress() callback method is called. If more than 10 seconds have passed then the complete() callback method is called and the clearInterval() method is called. When you execute the code above, you can see the output in the Visual Studio JavaScript Console. Creating a Timeout Promise In the previous section, we created a custom Promise which uses the window.setInterval() method to complete the promise after 10 seconds. We really did not need to create a custom promise because the Promise class already includes a static method for returning promises which complete after a certain interval. The code below illustrates how you can use the timeout() method. The timeout() method returns a promise which completes after a certain number of milliseconds. WinJS.Promise.timeout(3000).then( function(){console.log("complete")}, function(){console.log("error")}, function(){console.log("progress")} ); In the code above, the Promise completes after 3 seconds (3000 milliseconds). The Promise returned by the timeout() method does not support progress events. Therefore, the only message written to the console is the message “complete” after 10 seconds. Canceling Promises Some promises, but not all, support cancellation. When you cancel a promise, the promise’s error callback is executed. For example, the following code uses the WinJS.xhr() method to perform an Ajax request. However, immediately after the Ajax request is made, the request is cancelled. // Specify Ajax request options var options = { url: "/data/photos.txt" }; // Make the Ajax request var request = WinJS.xhr(options).then( function (xmlHttpRequest) { console.log("success"); }, function (xmlHttpRequest) { console.log("fail"); }, function (xmlHttpRequest) { console.log("progress"); } ); // Cancel the Ajax request request.cancel(); When you run the code above, the message “fail” is written to the Visual Studio JavaScript Console. Composing Promises You can build promises out of other promises. In other words, you can compose promises. There are two static methods of the Promise class which you can use to compose promises: the join() method and the any() method. When you join promises, a promise is complete when all of the joined promises are complete. When you use the any() method, a promise is complete when any of the promises complete. The following code illustrates how to use the join() method. A new promise is created out of two timeout promises. The new promise does not complete until both of the timeout promises complete: WinJS.Promise.join([WinJS.Promise.timeout(1000), WinJS.Promise.timeout(5000)]) .then(function () { console.log("complete"); }); The message “complete” will not be written to the JavaScript Console until both promises passed to the join() method completes. The message won’t be written for 5 seconds (5,000 milliseconds). The any() method completes when any promise passed to the any() method completes: WinJS.Promise.any([WinJS.Promise.timeout(1000), WinJS.Promise.timeout(5000)]) .then(function () { console.log("complete"); }); The code above writes the message “complete” to the JavaScript Console after 1 second (1,000 milliseconds). The message is written to the JavaScript console immediately after the first promise completes and before the second promise completes. Summary The goal of this blog entry was to describe WinJS promises. First, we discussed how promises enable you to easily write code which performs asynchronous actions. You learned how to use a promise when performing an Ajax request. Next, we discussed how you can create your own promises. You learned how to create a new promise by creating a constructor function with complete, error, and progress parameters. Finally, you learned about several advanced methods of promises. You learned how to use the timeout() method to create promises which complete after an interval of time. You also learned how to cancel promises and compose promises from other promises.

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• Lots of http HEAD requests originating from porn sites

  - by Don Corley

  My access log on my web server has a ton of http HEAD requests coming from porn sites. What are HEAD requests and are they doing something bad with my site? Here is an excerpt from my log: (valid request) 96.251.177.249 - - [02/Jan/2011:23:42:25 -0800] "POST /ajax HTTP/1.1" 200 0 "http://www.mywebsite.com/abc.html" "Mozilla/5.0 (X11; U; Linux x86_64; en-US) AppleWebKit/534.7 (KHTML, like Gecko) Chrome/7.0.517.44 Safari/534.7" 80.153.114.208 - - [02/Jan/2011:23:43:11 -0800] "HEAD / HTTP/1.0" 302 185 "http://www.somepornsite.com" "Mozilla/5.0 (X11; U; Linux i686; it-IT; rv:1.9.0.2) Gecko/2008092313 Ubuntu/9.25 (jaunty) Firefox/3.8" 80.153.114.208 - - [02/Jan/2011:23:43:11 -0800] "HEAD /tourappxsl HTTP/1.0" 200 16871 "http://www.somepornsite.com" "Mozilla/5.0 (X11; U; Linux i686; it-IT; rv:1.9.0.2) Gecko/2008092313 Ubuntu/9.25 (jaunty) Firefox/3.8" I changed only the web addresses in this log. Thanks for any ideas, Don

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• Nautilus crashes after Ubuntu Tweak Package Cleaner [fixed]

  - by Ka7anax

  Few days ago I started having some problems with nautilus. Basically when I'm trying to get into a folder it crashes. It's not happening all the time, but in 85% it does... Sometimes, after the crash all my desktop icons are also gone. The only thing that I think causes this is Ubuntu Tweak - I'm not sure, but the issues started after I did the Package cleaner from Ubuntu Tweaks... Any ideas? ------- EDIT 2 - IMPORTANT !!! ---------- It seems I fixed this problem doing these: 1) I uninstall this nautilus script - http://mundogeek.net/nautilus-scripts/#nautilus-send-gmail 2) I installed nautilus elementary So far is back to normal... If anything bad happens again I will come back! -------- EDIT 1 ---------- First time, after running the command (nautilus --quit; nautilus --no-desktop) 3 times all the system crashed (except the mouse, I could move the mouse). After restart I run it and obtain this: ----- Initializing nautilus-gdu extension Initializing nautilus-dropbox 0.6.7 (nautilus:2966): GConf-CRITICAL **: gconf_value_free: assertion value != NULL' failed (nautilus:2966): GConf-CRITICAL **: gconf_value_free: assertionvalue != NULL' failed Nautilus-Share-Message: Called "net usershare info" but it failed: 'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory Please ask your system administrator to enable user sharing. and then this: cristi@cris-laptop:~$ nautilus --quit; nautilus --no-desktop (nautilus:3810): Unique-DBus-WARNING **: Error while sending message: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

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• shared hosting: ssl domain receives all server's ssl requests, google gets it wrong

  - by pixeline

  This website is hosted on a shared server. I've recently had my hosting provider secure our website using SSL (https://domain.com instead of http://domain.com). Ever since then, all https requests sent to the server are redirected to my website. https://otherdomain.com leads to a warning, then, if you continue, to my website. Ok, my fault, i should have known SSL means 1 IP, otherwise, this thing can happen. But... Google Search results for my website's target keywords is now displaying these websites above my own, even though they have nothing even remotely related to the target keywords! already done: provide canonical url in the html page. told the problem to the server manager, who tells me it's normal but he'll look for a solution. This was one week ago, no answer since. I have no idea why Google is providing these https urls: i thought someone would have to submit them, or have them inside an html page in order for Google to actually index dummy https domains, but i see no reason why someone would do that. Any suggestion on how to solve this situation? Golive is in one week and SEO looks really bad because of that.

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• C# 4.0: Alternative To Optional Arguments

  - by Paulo Morgado

  Like I mentioned in my last post, exposing publicly methods with optional arguments is a bad practice (that’s why C# has resisted to having it, until now). You might argument that your method or constructor has to many variants and having ten or more overloads is a maintenance nightmare, and you’re right. But the solution has been there for ages: have an arguments class. The arguments class pattern is used in the .NET Framework is used by several classes, like XmlReader and XmlWriter that use such pattern in their Create methods, since version 2.0: XmlReaderSettings settings = new XmlReaderSettings(); settings.ValidationType = ValidationType.Auto; XmlReader.Create("file.xml", settings); With this pattern, you don’t have to maintain a long list of overloads and any default values for properties of XmlReaderSettings (or XmlWriterSettings for XmlWriter.Create) can be changed or new properties added in future implementations that won’t break existing compiled code. You might now argue that it’s too much code to write, but, with object initializers added in C# 3.0, the same code can be written like this: XmlReader.Create("file.xml", new XmlReaderSettings { ValidationType = ValidationType.Auto }); Looks almost like named and optional arguments, doesn’t it? And, who knows, in a future version of C#, it might even look like this: XmlReader.Create("file.xml", new { ValidationType = ValidationType.Auto });

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• /usr/lib/cups/backend/hp has failed

  - by edtechdev

  Ever since 10.04, I can't print to an HP laserjet p3005. I'm even using an entirely different computer now with a fresh install of 10.10. I've tried with and without the latest hplip. Recently, sometimes I can get it to print a few things, but eventually it always fails (usually when printing a pdf from the document viewer (also doesn't work with adobe pdf reader)). Sometimes it fails so bad the printer gives an error saying it needs to be turned off and on again. I can't seem to find a fix anywhere, I've googled all over the past year and tried every fix I could find. It does say that the /usr/lib/cups/backend/hp has failed. It also doesn't make a difference if I create the printer using hp-setup or ubuntu's own printing control panel. I delete and re-create the printer, no difference eventually. I use the default printer settings or custom settings, no difference. I can print perfectly find to a networked printer at home - an HP officejet 6310. It seems to be networked HP printers at work that I can't print to anymore (except occasionally right after re-installing the printer driver). What's the recommended way to install HP printer drivers and reset or clean out everything from before. Or where are the right logs to read or debug commands to do to find out what may be the real cause of the printing problems?

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• Why’s (Poignant) Guide to Ruby

  - by Ben Griswold

  You’re familiar with O’Reilly’s brilliant Head First Series, right?  Great.  Then you know how every book begins with an explanation of the Head First teaching style and you know the teaching format which Kathy Sierra and Bert Bates developed is based on research in cognitive science, neurobiology and educational psychology and it’s all about making learning visual and conversational and attractive and emotional and it’s highly effective.  Anyway, it’s a great series and you should read every last one of the books. Moving on… I’ve been wanting to learn more about Ruby and Why’s (Poignant) Guide to Ruby has been on my reading list for a while and there was talk about cartoon foxes and other silliness and I figured Why’s (Poignant) Guide to Ruby probably takes the same unorthodox teaching style as the Head First books – and that’s great – so I read the book, in piecemeal, over the last couple of weeks and, well, I figured wrong. Now having read the book, here’s my take on Why’s (Poignant) Guide – it’s very creative and clever and it does a darn good job of introducing one to Ruby.  If you’re interested in Ruby or simply interested, the online book is worth your time.  If you’re thinking (like me) that cartoon foxes will be doing the teaching, that’s simple not the case.  However, the cartoons and the random stories in the sidebar may serve a purpose. Unlike the Head First books where images and captions are used to further explain the teachings, the cartoons and stories in Why’s Guide serve as intermission and offer your brain a brief moment of rest before the next Ruby concept is explained.  It’s not a bad strategy, but definitely not as effective as the Head First techniques.  

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• How to fix "apt-get upgrade" errors?

  - by mohamad farid bin abdullah

  I get these errors when I try to upgrade the packages installed on my Ubuntu system: m@m-desktop ~ $ sudo apt-get upgrade Reading package lists... Done Building dependency tree Reading state information... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. After this operation, 0B of additional disk space will be used. Do you want to continue [Y/n]? y Setting up drbd8-source (2:8.3.7-1ubuntu2.3) ... Removing old drbd8-8.3.7 DKMS files... ------------------------------ Deleting module version: 8.3.7 completely from the DKMS tree. ------------------------------ Done. Loading new drbd8-8.3.7 DKMS files... First Installation: checking all kernels... Building only for 2.6.35-22-generic Building for architecture i386 Building initial module for 2.6.35-22-generic Error! Bad return status for module build on kernel: 2.6.35-22-generic (i386) Consult the make.log in the build directory /var/lib/dkms/drbd8/8.3.7/build/ for more information. dpkg: error processing drbd8-source (--configure): subprocess installed post-installation script returned error exit status 10 dpkg: dependency problems prevent configuration of drbd8-utils: drbd8-utils depends on drbd8-source; however: Package drbd8-source is not configured yet. dpkg: error processing drbd8-utils (--configure): dependency problems - leaving unconfigured No apport report written because the error message indicates its a followup error from a previous failure. Errors were encountered while processing: drbd8-source drbd8-utils E: Sub-process /usr/bin/dpkg returned an error code (1) m@m-desktop ~ $

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• /usr/lib/cups/backend/hp has failed with an HP LaserJet p3005

  - by edtechdev

  Ever since 10.04, I can't print to an HP laserjet p3005. I'm even using an entirely different computer now with a fresh install of 10.10. I've tried with and without the latest hplip. Recently, sometimes I can get it to print a few things, but eventually it always fails (usually when printing a pdf from the document viewer (also doesn't work with adobe pdf reader)). Sometimes it fails so bad the printer gives an error saying it needs to be turned off and on again. I can't seem to find a fix anywhere, I've googled all over the past year and tried every fix I could find. It does say that the /usr/lib/cups/backend/hp has failed. It also doesn't make a difference if I create the printer using hp-setup or ubuntu's own printing control panel. I delete and re-create the printer, no difference eventually. I use the default printer settings or custom settings, no difference. I can print perfectly find to a networked printer at home - an HP officejet 6310. It seems to be networked HP printers at work that I can't print to anymore (except occasionally right after re-installing the printer driver). What's the recommended way to install HP printer drivers and reset or clean out everything from before. Or where are the right logs to read or debug commands to do to find out what may be the real cause of the printing problems?

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• Visual Studio Shortcut: Surround With

  - by Jeff Widmer

  I learned a new Visual Studio keyboard shortcut today that is really awesome; the “Surround With” shortcut.  You can trigger the Surround With context menu by pressing the Ctrl-K, Ctrl-S key combination when on a line of code. Ctrl-K, Ctrl-S means to hold down the Control key and then press K and then while still holding down the Control key press S. Here is where this comes in handy: You type a line of code and then realize you need to put it within an if statement block. So you type “if” and hit tab twice to insert the if statement code snippet.  Then you highlight the previous line of code that you typed, and then either drag and drop it into the if-then block or cut and paste it.  That is not too bad but it is a lot of extra key clicks and mouse moves. Now try the same with the Surround With keyboard shortcut.  Just highlight that line of code that you just typed and press Ctrl-K, Ctrl-S and choose the if statement code snippet, hit tab, and POW!... you are done!  No more code moving/indenting required. Here is what the Surround With context menu looks like: Just up or down arrow inside the drop down list to the code snippet that you want to surround your currently selected text with.  Did I mention this is AWESOME! Now it is so simple to surround lines of code with an if-then block or a try-catch-finally block... things that usually took several key clicks and maybe one or two mouse moves. And this works in both Visual Studio 2008 and Visual Studio 2010 which means it has been around for a long time and I never knew about it.   Technorati Tags: Visual Studio Keyboard Shortcut

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• Should I be worried about overengineering programming assignments given during interview process?

  - by DormoTheNord

  I recently had a phone interview with a company. After that phone interview, I was told to complete a short programming assignment (a small program; shouldn't take more than three hours). I'm only directly instructed to complete the assignment and turn in the code. I was given complete freedom to use any language I wished and was not told exactly how to turn in the code. Immediately I planned on throwing it on Github, writing a test suite for it, using Travis-CI (free continuous integration for public Github repositories) to run the test suites, and using CMake to build the Linux makefiles for Travis-CI. That way, not only can I demonstrate that I understand how to use Git, CMake, Travis-CI, and how to write tests, but I can also simply link to the Travis-CI page so they can see the output of the tests. I figured that'd make it a tiny bit more convenient for the interviewer. Since I know those technologies well, it would add essentially no time to the assignment. However, I'm a bit worried that doing all this for a relatively simple task would look bad. Although it wouldn't add much more time at all for me, I don't want them thinking I spend too much time on things that should be simple.

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• SQL SERVER – 2008 – Unused Index Script – Download

  - by pinaldave

  Download Missing Index Script with Unused Index Script Performance Tuning is quite interesting and Index plays a vital role in it. A proper index can improve the performance and a bad index can hamper the performance. Here is the script from my script bank which I use to identify unused indexes on any database. Please note, if you should not drop all the unused indexes this script suggest. This is just for guidance. You should not create more than 5-10 indexes per table. Additionally, this script sometime does not give accurate information so use your common sense. Any way, the scripts is good starting point. You should pay attention to User Scan, User Lookup and User Update when you are going to drop index. The generic understanding is if this values are all high and User Seek is low, the index needs tuning. The index drop script is also provided in the last column. Download Missing Index Script with Unused Index Script -- Unused Index Script -- Original Author: Pinal Dave (C) 2011 SELECT TOP 25 o.name AS ObjectName , i.name AS IndexName , i.index_id AS IndexID , dm_ius.user_seeks AS UserSeek , dm_ius.user_scans AS UserScans , dm_ius.user_lookups AS UserLookups , dm_ius.user_updates AS UserUpdates , p.TableRows , 'DROP INDEX ' + QUOTENAME(i.name) + ' ON ' + QUOTENAME(s.name) + '.' + QUOTENAME(OBJECT_NAME(dm_ius.OBJECT_ID)) AS 'drop statement' FROM sys.dm_db_index_usage_stats dm_ius INNER JOIN sys.indexes i ON i.index_id = dm_ius.index_id AND dm_ius.OBJECT_ID = i.OBJECT_ID INNER JOIN sys.objects o ON dm_ius.OBJECT_ID = o.OBJECT_ID INNER JOIN sys.schemas s ON o.schema_id = s.schema_id INNER JOIN (SELECT SUM(p.rows) TableRows, p.index_id, p.OBJECT_ID FROM sys.partitions p GROUP BY p.index_id, p.OBJECT_ID) p ON p.index_id = dm_ius.index_id AND dm_ius.OBJECT_ID = p.OBJECT_ID WHERE OBJECTPROPERTY(dm_ius.OBJECT_ID,'IsUserTable') = 1 AND dm_ius.database_id = DB_ID() AND i.type_desc = 'nonclustered' AND i.is_primary_key = 0 AND i.is_unique_constraint = 0 ORDER BY (dm_ius.user_seeks + dm_ius.user_scans + dm_ius.user_lookups) ASC GO Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Download, SQL Index, SQL Performance, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• Jack of all trades, master of none [closed]

  - by Rope

  I've got a question similar to this one: Is looking for code examples constantly a sign of a bad developer? though not entirely. I got off college 2 years ago and I'm currently struggling with a University study. Most likely I'll have to drop out and start working within the next couple of months. Now here's the pickle. I have no speciality what so ever. When I got out of college I had worked with C, C++ and Java. I had had an internship at NEC-Philips and got familiar with C# (.NET) and I taught myself how it worked. After college I started working with PHP, HTML,SQL, MySQL Javascript and Jquery. I'm currently teaching myself Ruby on Rails and thus Ruby. At my university I also got familiar with MATLAB. As you can see I've got a broad scope of languages and frameworks I'm familiar with, but none I know inside-out. So I guess this kinda applies to me: "Jack of all trades, master of none.". I've been looking for jobs and I've noticed that most of them require some years of experience with a certain language and some specifications that apply to that language. My question is: How do I pick a speciality? And how do I know if I'll actually enjoy it? As I've worked with loads of languages how would I be able to tell this is right for me? I don't like being tied down to a specific role and I quite like being a generalist. But in order to make more money I would need a specialisation. How would I pick something that goes against my nature? Thanks in advance, Rope.

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• Experience your music in a whole new way with Zune for PC

  - by Matthew Guay

  Tired of the standard Media Player look and feel, and want something new and innovative?  Zune offers a fresh, new way to enjoy your music, videos, pictures, and podcasts, whether or not you own a Zune device. Microsoft started out on a new multimedia experience for PCs and mobile devices with the launch of the Zune several years ago.  The Zune devices have been well received and noted for their innovative UI, and the Zune HD’s fluid interface is the foundation for the widely anticipated Windows Phone 7.  But regardless of whether or not you have a Zune Device, you can still use the exciting new UI and services directly from your PC.  Zune for Windows is a very nice media player that offers a music and video store and wide support for multimedia formats including those used in Apple products.  And if you enjoy listening to a wide variety of music, it also offers the Zune Pass which lets you stream an unlimited number of songs to your computer and download 10 songs for keeps per month for $14.99/month. Or you can do a pre-paid music card as well.  It does all this using the new Metro UI which beautifully shows information using text in a whole new way.  Here’s a quick look at setting up and using Zune on your PC. Getting Started Download the installer (link below), and run it to begin setup.  Please note that Zune offers a separate version for computers running the 64 bit version of Windows Vista or 7, so choose it if your computer is running these. Once your download is finished, run the installer to setup Zune on your computer.  Accept the EULA when prompted. If there are any updates available, they will automatically download and install during the setup.  So, if you’re installing Zune from a disk (for example, one packaged with a Zune device), you don’t have to worry if you have the latest version.  Zune will proceed to install on your computer.   It may prompt you to restart your computer after installation; click Restart Now so you can proceed with your Zune setup.  The reboot appears to be for Zune device support, and the program ran fine otherwise without rebooting, so you could possibly skip this step if you’re not using a Zune device.  However, to be on the safe side, go ahead and reboot. After rebooting, launch Zune.  It will play a cute introduction video on first launch; press skip if you don’t want to watch it. Zune will now ask you if you want to keep the default settings or change them.  Choose Start to keep the defaults, or Settings to customize to your wishes.  Do note that the default settings will set Zune as your default media player, so click Settings if you wish to change this. If you choose to change the default settings, you can change how Zune finds and stores media on your computer.  In Windows 7, Zune will by default use your Windows 7 Libraries to manage your media, and will in fact add a new Podcasts library to Windows 7. If your media is stored on another location, such as on a server, then you can add this to the Library.  Please note that this adds the location to your system-wide library, not just the Zune player. There’s one last step.  Enter three of your favorite artists, and Zune will add Smart DJ mixes to your Quickplay list based on these.  Some less famous or popular artists may not be recognized, so you may have to try another if your choice isn’t available.  Or, you can click Skip if you don’t want to do this right now. Welcome to Zune!  This is the default first page, QuickPlay, where you can easily access your pinned and new items.   If you have a Zune account, or would like to create a new one, click Sign In on the top. Creating a new account is quick and simple, and if you’re new to Zune, you can try out a 14 day trial of Zune Pass for free if you want. Zune allows you to share your listening habits and favorites with friends or the world, but you can turn this off or change it if you like. Using Zune for Windows To access your media, click the Collection link on the top left.  Zune will show all the media you already have stored on your computer, organized by artist and album. Right-click on any album, and you choose to have Zune find album art or do a variety of other tasks with the media.   When playing media, you can view it in several unique ways.  First, the default Mix view will show related tracks to the music you’re playing from Smart DJ.  You can either play these fully if you’re a Zune Pass subscriber, or otherwise you can play 30 second previews. Then, for many popular artists, Zune will change the player background to show pictures and information in a unique way while the music is playing.  The information may range from history about the artist to the popularity of the song being played.   Zune also works as a nice viewer for the pictures on your computer. Start a slideshow, and Zune will play your pictures with nice transition effects and music from your library. Zune Store The Zune Store offers a wide variety of music, TV shows, and videos for purchase.  If you’re a Zune Pass subscriber, you can listen to or download any song without purchasing it; otherwise, you can preview a 30 second clip first. Zune also offers a wide selection of Podcasts you can subscribe to for free. Using Zune for PC with a Zune Device If you have a Zune device attached to your computer, you can easily add media files to it by simply dragging them to the Zune device icon in the left corner.  In the future, this will also work with Windows Phone 7 devices. If you have a Zune HD, you can also download and add apps to your device. Here’s the detailed information window for the weather app.  Click Download to add it to your device.   Mini Mode The Zune player generally takes up a large portion of your screen, and is actually most impressive when run maximized.  However, if you’re simply wanting to enjoy your tunes while you’re using your computer, you can use the Mini mode to still view music info and control Zune in a smaller mode.  Click the Mini Player button near the window control buttons in the top right to activate it. Now Zune will take up much less of your desktop.  This window will stay on top of other windows so you can still easily view and control it. Zune will display an image of the artist if one is available, and this shows up in Mini mode more often than it does in the full mode. And, in Windows 7, you could simply minimize Zune as you can control it directly from the taskbar thumbnail preview.   Even more controls are available from Zune’s jumplist in Windows 7.  You can directly access your Quickplay links or choose to shuffle all music without leaving the taskbar. Settings Although Zune is designed to be used without confusing menus and settings, you can tweak the program to your liking from the settings panel.  Click Settings near the top left of the window. Here you can change file storage, types, burn, metadata, and many more settings.  You can also setup Zune to stream media to your XBOX 360 if you have one.   You can also customize Zune’s look with a variety of modern backgrounds and gradients. Conclusion If you’re ready for a fresh way to enjoy your media, Zune is designed for you.  It’s innovative UI definitely sets it apart from standard media players, and is very pleasing to use.  Zune is especially nice if your computer is using XP, Vista Home Basic, or 7 Starter as these versions of Windows don’t include Media Center.  Additionally, the mini player mode is a nice touch that brings a feature of Windows 7’s Media Player to XP and Vista.  Zune is definitely one of our favorite music apps.  Try it out, and get a fresh view of your music today! Link Download Zune for Windows Similar Articles Productive Geek Tips Redeem Pre-paid Zune Card Points for Zune Marketplace MediaUpdate Your Zune Player SoftwaredoubleTwist is an iTunes Alternative that Supports Several DevicesFind Free or Cheap Indie Music at Amie StreetAmie Street Downloader Makes Purchasing Music Easier TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 The Ultimate Guide For YouTube Lovers Will it Blend? iPad Edition Penolo Lets You Share Sketches On Twitter Visit Woolyss.com for Old School Games, Music and Videos Add a Custom Title in IE using Spybot or Spyware Blaster When You Need to Hail a Taxi in NYC

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• On contract work, obligations to said contract, and looking out for yourself…

  - by jlnorsworthy

  Without boring you all with details, my last two contract assignments were cut short; I was given 3 days notice on one, and 4 weeks notice on the other. Neither of these were due to performance – they both basically came down budget issues. On my second contract, I got the feeling that I may not have been a great place to stay for the duration of my contract. Because of money/time spent getting me in the door, and the possible negative effect of my employer/recruiter, I decided to stay at least for a few months (and start looking several weeks before the end of my supposedly “extendable” contract). These experiences have left me a little wary of contract work. It seems that if I land a bad contract, that my recruiter would take a hit (reputation or otherwise) if I quickly found another job. But on the other hand, the client company won’t think twice of ending the contract early for any reason. I know that the counter argument to this is “maybe your recruiter shouldn’t have put you into a crappy assignment”… either way, it seems that since I am relying on him to provide me with work, that I should try to not damage his reputation with client companies. I’m basically brand new to contracting (these were my first two contracts) so these concerns are new to me. TLDR: Is contract work, by its very nature, largely unstable? Am I worried too much about my recruiter? Should I be quicker to start looking for a new job even after just weeks at a new company (when the environment seems unstable)? If so, do I look through my recruiter or just find another position by any means necessary?

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• How can I transition from being a "9-5er" to being self-employed?

  - by Stephen Furlani

  Hey, I posted this question last fall about moonlighting, and I feel like I've got a strong case to make to start transitioning from being a Full-Time Employee to being self-employed. So much so, that I find it hard to concentrate at work on the things I'm supposed to be doing. However, self-employment comes with things like no health benefits or guaranteed income... so I don't feel like I can just quit. (At least not in this economy with a house and family). I'm already working 40hrs/wk on my main job, going to school to get my MS, and trying to freelance on weekends and evenings, but I want to give it more time. If I can't take LWOP or just work less than 40hrs/wk I feel like I have to give up self-employment because I just can't give my day job all my best. Would it be reasonable to ask my employer if they can cut my hours (and pay)? Is there something else I can/should do? Has anyone done this transition and had it turn out well? or bad? I am in the USA and I understand answers are not legal advice. Thanks!

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• Abstract exception super type

  - by marcof

  If throwing System.Exception is considered so bad, why wasn't Exception made abstract in the first place? That way, it would not be possible to call: throw new Exception("Error occurred."); This would enforce using derived exceptions to provide more details about the error that occurred. For example, when I want to provide a custom exception hierarchy for a library, I usually declare an abstract base class for my exceptions: public abstract class CustomExceptionBase : Exception { /* some stuff here */ } And then some derived exception with a more specific purpose: public class DerivedCustomException : CustomExceptionBase { /* some more specific stuff here */ } Then when calling any library method, one could have this generic try/catch block to directly catch any error coming from the library: try { /* library calls here */ } catch (CustomExceptionBase ex) { /* exception handling */ } Is this a good practice? Would it be good if Exception was made abstract? EDIT : My point here is that even if an exception class is abstract, you can still catch it in a catch-all block. Making it abstract is only a way to forbid programmers to throw a "super-wide" exception. Usually, when you voluntarily throw an exception, you should know what type it is and why it happened. Thus enforcing to throw a more specific exception type.

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• Install updates without breaking shell theme?

  - by Niko

  Recently I installed a copy of Oneiric Ocelot 11.10 on my ThinkPad. Everything went fine, I installed the gnome shell and gnome-tweak-tool to customize everything. I changed the shell theme, the GTK+ theme and the icon set. After everything fit my needs perfectly, I installed some updates from the update manager (no upgrades, just small updates). I had to restart, and after I restarted, my gnome shell was broken. In tweak-tool, it showed the customized shell as the default one, and my gtk theme was broken as well (it looked like two themes "frankensteined" together...). The bad thing was - I couldn't get things back into the default settings! So the only thing left was to use the -non broken- unity shell. What can I do to stop these things from happening? (I mean...sure I could avoid the updates, but that would be kind of stupid, too.) I only have these PPAs installed: ferramroberto-gnome3-oneiric.list (and .save), playonlinux.list (and .save) And how can I fix the broken gnome-shell?

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• What is the proper way to Windows 7/Ubuntu 10.10 Dual-Triple Boot Partitioning for Laptop OEM?

  - by Denja

  Hi Linux Community, I find my self struggling with the slowness of windows OS once again. It's Time to change with the Ubuntu 10.10 64bit for I like to use a faster Operating System. My Hard Disk laptop has a RECOVERY and HP_TOOLS partition they are both Primary. I Have the System Recovery DVD for Windows 64bit should anything bad happen. Here's the layout I used with windows before: * (C:) Windows 7 system partition NTFS - 284,89GB (Primary,ad Boot,Pagefile,Dump) * HP_TOOLS system partition FAT32 - 99MB (Primary) * (D:) RECOVERY partition NTFS - 12,90GB (Primary) * SYSTEM partition NTFS 199MB (Primary) Here's the layout I wanted to make: * (C:) Windows 7 system partition NTFS - 60GB (Primary) (sda1) * (D:) Windows DATA partition (user files) NTFS - 120GB(Primary)(sda2);wanna share with Linux * Linux root Ext4 - 10GB (Extended)(sda3) (Ubuntu 10.10 64bit) * Linux home Ext3 - 90GB (Extended)(sda4) (Ubuntu 10.10 64bit) * Linux swap swap- RAM size, 3GB (sda5) * Linux root Ext3- 18GB (Extended) (sda6) (OpenSuse or Puppy or kubuntu) Here is my New Ubuntu 10.10 64bit layout in use now: * SYSTEM partition NTFS 199MB (Primary) (sda1) * (C:) Windows 7 system partition NTFS - 90GB (Primary) (sda2) * (D:) Windows 7 RECOVERY partition NTFS - 12,90GB (Primary) (sda3) * Linux system partition EXTENDED - 195,1GB (Logical) * Linux root Ext4- 10GB (Extended) (sda4) * Linux swap swap- RAMx2 size, 6,1GB (sda5) * Linux home Ext3- 179GB (Extended) (sda6) When I installed Ubuntu,I didn't know if I could wipe all previous partitions,because of the RECOVERY partition. So I just made the space for my extended partition with GParted by deleting the HP_TOOLS (Fat32). By doing this I managed somehow to install Ubuntu 64 with Success. And I also made the partitions for the swap or a third Linux OS as Jordan suggested. But I couldn't actually make the partitions for the shared NTFS.(no option!) Question 1: What is the proper way to Windows 7/Ubuntu 10.10 Dual-Triple Boot Partitioning for Laptop OEM?? Thank you in advance for your advises and suggestions and Happy New Year to All!!

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• What is spreadsheet useful for?

  - by zvrba

  I have been in computer business for 15 years in various roles (sysadmin, developer, researcher), and I have never encountered someone using excel for something more advanced than for formatting tables, or as an ad-hoc database that could have been maintained in a text-file. I had to do heavy data-processing and plotting and for that I used some perl scripts + gnuplot, got tiredof it, and went over to R eventually. 2D spreadsheet just didn't seem well-suited for doing statistical analyses over 5-dimensional datasets (not to mention that it produces UGLY plots). I attempted to use spreadsheet for time-tracking, and found out that I would have better been served by a relational database, so I gave up on using excel for that too. For example, it's important to consistently name tasks, and I needed to find out unique task names in a given column across several sheets (I had one timesheet for each month). How do you make such "query" in a program that essentially evaluates independent cells and has little notion of relations between them? So, what are spreadsheets useful for? Why do they have a bunch of mathematical stuff built into them when, AFAICT, people use them mostly as table formatters or bad substitutes for databases?

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• Function currying in Javascript

  - by kerry

  Do you catch yourself doing something like this often? 1: Ajax.request('/my/url', {'myParam': paramVal}, function() { myCallback(paramVal); }); Creating a function which calls another function asynchronously is a bad idea because the value of paramVal may change before it is called.  Enter the curry function: 1: Function.prototype.curry = function(scope) { 2: var args = []; 3: for (var i=1, len = arguments.length; i < len; ++i) { 4: args.push(arguments[i]); 5: } 6: var m = this; 7: return function() { 8: m.apply(scope, args); 9: }; 10: } This function creates a wrapper around the function and ‘locks in’ the method parameters.  The first parameter is the scope of the function call (usually this or window).  Any remaining parameters will be passed to the method call.  Using the curry method the above call changes to: 1: Ajax.request('/my/url', {'myParam': paramVal}, myCallback.curry(window,paramVal)); Remember when passing objects to the curry method that the objects members may still change.

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• JavaOne Latin America Schedule Changes For Thursday

  - by Tori Wieldt

  tweetmeme_url = 'http://blogs.oracle.com/javaone/2010/12/javaone_latin_america_schedule_changes_for_thursday.html'; Share .FBConnectButton_Small{background-position:-5px -232px !important;border-left:1px solid #1A356E;} .FBConnectButton_Text{margin-left:12px !important ;padding:2px 3px 3px !important;} The good news: we've got LOTS of developers at JavaOne Latin America.The bad news: the rooms are too small to hold everyone! (we've heard you)The good news: selected sessions for Thursday have been moved larger rooms (the keynote halls) More good news: some sessions that were full from Wednesday will be repeated on Thursday. SCHEDULE CHANGES FOR THURSDAY, DECEMBER 9THNote: Be sure to check the schedule on site, there still may be some last minute changes. Session Name Speaker New Time/Room Ginga, LWUIT, JavaDTV and You 2.0 Dimas Oliveria Thursday, December 9, 11:15am - 12:00pm Auditorio 4 JavaFX do seu jeito: criando aplicativos JavaFX com linguagens alternativas Stephen Chin Thursday, December 9, 3:00pm - 3:45pm Auditorio 4 Automatizando sua casa usando Java; JavaME, JavaFX, e Open Source Hardware Vinicius Senger Thursday, December 9, 9:00am - 9:45am Auditorio 3 Construindo uma arquitetura RESTful para aplicacoes ricas com HTML 5 e JSF2 Raphael Helmonth Adrien Caetano Thursday, December 9, 5:15pm - 6:00pm Auditorio 2 Dicas eTruquies sobre performance em Java EE JPA e JSF Alberto Lemos e Danival Taffarel Calegari Thursday, December 9, 2:00pm - 2:45pm Auditorio 2 Escrevendo Aplicativos Multipatforma Incriveis Usando LWUIT Roger Brinkley Cancelled Platforma NetBeans: sem slide - apenas codigo Mauricio Leal Cancelled Escalando o seu AJAX Push com Servlet 3.0 Paulo Silveria Keynote Hall 9:00am - 9:45am Cobetura Completa de Ferramentas para a Platforma Java EE 6 Ludovic Champenois Keynote Hall 10:00am - 10:45am Servlet 3.0 - Expansivel, Assincrono e Facil de Usar Arun Gupta Keynote Hall 4:00pm - 4:45pm Transforme seu processo em REST com JAX-RS Guilherme Silveria Keynote Hall 5:00pm - 5:45pm The Future of Java Fabiane Nardon e Bruno Souza Keynote Hall 6:00pm - 6:45pm Thanks for your understanding, we are tuning the conference to make it the best JavaOne possible.

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• Uploading.to Uploads Files to Multiple File Hosts Simultaneously

  - by Jason Fitzpatrick

  If you’re looking to quickly share a file across a variety of file hosting services, Uploading.to makes it a cinch to share up to 10 files across 14 hosts. The upload process is simple. Visit Uploading.to, select your files, check the hosts you want to share the file across (by default all 14 are checked), add a description to the collection, and hit the Upload button. Uploading.to will upload your file to the various hosts; during the process you’ll see which hosts are confirmed and which have failed. We had 2 failures among the 14 hosts which still left the file mirrored across a sizable 12 host spread–not bad at all. When you’re ready to share the file hit the Copy Link button at the bottom of the screen and share it with your friends. They’ll be directed to Uploading.to and will be able to select from any of the hosts the file was successfully mirrored across. Uploading.to is a free service and requires no registration. Uploading.to [via Addictive Tips] HTG Explains: Do You Really Need to Defrag Your PC? Use Amazon’s Barcode Scanner to Easily Buy Anything from Your Phone How To Migrate Windows 7 to a Solid State Drive

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• Ubuntu 11.10 is falling back to Unity 2D. How to get back to Unity 3D?

  - by marcioAlmada

  It happened some minutes ago when I plugged my secondary monitor and my graphical interface simply crashed. So I had to restart my session. Since the crash Ubuntu insists to use Unity2D fall back instead of the default one. I used to plug the secondary monitor everyday when at home and nothing bad happened before. This 2D version of the GUI is ugly and has a lot of problems. How can I go back to Unity 3D GUI? update It seems somehow I lost my opengl support (driver issues). $ glxinfo name of display: :0.0 Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Error: couldn't find RGB GLX visual or fbconfig Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". Xlib: extension "GLX" missing on display ":0.0". And: $ glxgears Xlib: extension "GLX" missing on display ":0.0". Error: couldn't get an RGB, Double-buffered visual How can I revert things and go back to the right driver?

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