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• Silverlight Cream for February 14, 2011 -- #1047

  - by Dave Campbell

  In this Issue: Mohamed Mosallem, Tony Champion, Gill Cleeren, Laurent Bugnion, Deborah Kurata, Jesse Liberty(-2-), Tim Heuer, Mike Taulty, John Papa, Martin Krüger, and Jeremy Likness. Above the Fold: Silverlight: "Binding to a ComboBox in Silverlight : A Gotcha" Tony Champion WP7: "An Ultra Light Windows Phone 7 MVVM Framework" Jeremy Likness Shoutouts: Steve Wortham has a post up discussing Silverlight 5, HTML5, and what the future may bring From SilverlightCream.com: Silverlight 4.0 Tutorial (12 of N): Collecting Attendees Feedback using Windows Phone 7 Mohamed Mosallem is up to number 12 in his Silverlight tutorial series. He's continuing his RegistrationBooth app, but this time, he's building a WP7 app to give attendee feedback. Binding to a ComboBox in Silverlight : A Gotcha If you've tried to bind to a combobox in Silverlight, you've probably either accomplished this as I have (with help) by having it right once, and continuing, but Tony Champion takes the voodoo out of getting it all working. Getting ready for Microsoft Silverlight Exam 70-506 (Part 5) Gill Cleeren has Part 5 of his exam preparation post up on SilverlightShow. As with the others, he provides many external links to good information. Referencing a picture in another DLL in Silverlight and Windows Phone 7 Laurent Bugnion explains the pitfalls and correct way to reference an image from a dll... good info for loading images such as icons for Silverlight in general and WP7 also. Silverlight MVVM Commanding II Deborah Kurata has a part 2 up on MVVM Commanding. The first part covered the built-in commanding for controls that inherit from ButtonBase... this post goes beyond that into other Silverlight controls. Reactive Drag and Drop Part 1 This Drag and Drop with Rx post by Jesse Liberty is the 4th in his Rx series. He begins with a video from the Rx team and applies reactive programming to mouse movements. Yet Another Podcast #24–Reactive Extensions On the heels of his previous post on Rx, in his latest 'Yet Another Podcast', Jesse Liberty chats with Matthew Podwysocki and Bart De Smet about Reactive Extensions. Silverlight 4 February 2011 Update Released Today Tim Heuer announced the release of the February 2011 Silverlight 4 release. Check out Tim's post for information about what's contained in this release. Blend Bits 25–Templating Part 3 In his 3rd Templating tutorial in BlendBits, Mike Taulty demonstrates the 'Make into Control' option rather than the other way around. Silverlight TV 61: Expert Chat on Deep Zoom, Touch, and Windows Phone John Papa interviews David Kelley in the latest Silverlight TV... David is discussing touch in Silverlight and for WP7 and his WP7 apps in the marketplace. Simple Hyperlinkbutton style Martin Krüger has a cool Hyperlink style available at the Expression Gallery. Interesting visual for entertaining your users. An Ultra Light Windows Phone 7 MVVM Framework Jeremy Likness takes his knowledge of MVVM (Jounce), and WP7 and takes a better look at what he'd really like to have for a WP7 framework. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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• Moving MODx Files to Other MODx Website

  - by Austin

  I have one website with modx installed to www.website.com/modx/ --- Keep in mind there are other Websites In Progress on this storage server. My issue is that I'm moving all this: templates, template variables, chunks, snippets, etc to another server that already has modx installed in it. My first instinct is to go to phpMyAdmin and export the sql file and import them to the new website's server. However, an error occurred when I attempted to do this. It had found many duplicates in fields that were associated a PK (due to it being the same website just a redesign). I don't have to go and dump the table of the oldsite and then upload the new sql file do i? Please advise.

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• Changing an MSSQL clustered index field from containing "random" GUIDs to sequential GUIDs - how wil

  - by Eyvind

  We have an MSSQL database in which all the primary keys are GUIDs (uniqueidentifiers). The GUIDs are produced on the client (in C#), and we are considering changing the client to generate sequential (comb) GUIDs instead of just using Guid.NewGuid(), to improve db performance. If we do this, how will this affect installations that already have data with "random" GUIDs as clustered PKs? Can anything be done (short of changing all the PK values) to rebuild the indexes to avoid further fragmentation and bad insert performance? Please give explicit and detailed answers if you can; I am a C# developer at heart and not all too familiar with all the intricacies of SQL Server. Thanks!

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• Samsung introduces smart watch. But without any smartness!

  - by Gopinath

  The era of mobile phone can be classified as before iPhone and after iPhone. When iPhone was introduced they were revolutionary, smart, awesome and technologically far advanced than any other phone available in the market. iPhone is the first true smartphone and a game changer. With the same goal in mind, Samsung tried revolutionizing watch industry by announcing Galaxy Gear watches. They branded them as a smart watch, hyped its release as if it’s going to revolutionize the way we use watches. But in reality there is nothing exciting about it. Instead it’s an expensive (300$) one, battery lasts less than a day, user interface is very very slow, has small memory capacity, not much of use if not connected to a Samsung phone!! With so many negative, how can it be a smart watch? Reviews on Galaxy Gear smart watch The Next Web Smartwatches are still too dumb The Verge Samsung’s Galaxy Gear isn’t really a smartwatch Gizmodo $300 is a lot for a souped up fitness tracker, and as far as the basic smartphone functions Galaxy Gear is capable of, those feel a little strange and counterintuitive ZD NET Samsung has left the door wide open with the Galaxy Gear, which looks both rushed and exorbitantly priced at the same time. Few Tweets on Galaxy Gear 1. Apple surprises with iPhone 2. Tablet rumors 3. Others rush crap to market 4. iPad 5. ‘iWatch’ Rumors 6. Others rush crap to market 7. ? — Matthew Panzarino (@panzer) September 4, 2013 Camera, phone, music… There’s one thing that the Gear doesn’t seem to have: a purpose | http://t.co/raK4Rgy6Fm by @SamGrobart — Businessweek (@BW) September 5, 2013   Galaxy Gear Video demo shows how slow it is Here is a Galaxy Gear hands on video from slashgear. You can see how slow the device performs   With the rumors of Apple building smart watch, Samsung rushed to the market with its own version of (smart) watch as a preemptive strike. But with a half baked product and without any innovation it back fired on it own reputation. This would’ve been great chance to Samsung to prove that the company is innovative and not a copy cat. But it failed to innovate and missed a chance.

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• Follow the How-To Geek Writers on Twitter

  - by The Geek

  Ever wonder what the How-To Geek writers are up to? If you’re a Twitter user, you can connect with us directly. We’ve also setup a new @howtogeeknews account if you just want to keep up with the latest articles. So if you want just the latest articles… click the image below and then click the Follow button. Otherwise, if you’d like to connect with the rest of us that actually use Twitter, you can follow each of us separately through  the links below. Note: Let’s try to stick to discussion, and leave the tech support questions for our forum. the How-To Geek (that’s me!) -  @howtogeek Matthew Guay – @maguay Trevor Bekolay – @TrevorBekolay Asian Angel – @asian_angel  Andrew Gehman – @andrewgehman Some of the HTG writers are not currently using Twitter… but I’m gonna list their accounts just in case you wanted to follow them. Mark Virtue – @markvirtue Mysticgeek – @mysticgeek  (He’s far too productive to waste time on Twitter!) Enjoy the conversation! Similar Articles Productive Geek Tips Got Awesome Geek Skills? The How-To Geek is Looking for WritersGot Awesome Skills? Why Not Write for How-To Geek?Integrate Twitter With Microsoft OutlookState of the Geek 2009: Behind the Scenes and Other GeekeryAnnouncing the How-To Geek Blogs 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 Download Videos from Hulu Pixels invade Manhattan Convert PDF files to ePub to read on your iPad Hide Your Confidential Files Inside Images Get Wildlife Photography Tips at BBC’s PhotoMasterClasses Mashpedia is a Real-time Encyclopedia

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• Windows Azure Database (SQL Azure) Development Tip

  - by BuckWoody

  When you create something in the cloud, it's real, and you're charged for it. There are free offerings, and you even get free resources with your Microsoft Developer Network (MSDN) subscription, but there are limits within those. Creating a 1 GB database - even with nothing in it - is a 1 GB Database. If you create it, drop it, and create it again 2 minutes later, that's 2 GB of space you've used for the month. Wait - how do I develop in this kind of situation? With Windows Azure, you can simply install the free Software Development Kit (SDK) and develop your entire application for free - you need never even log in to Windows Azure to code. Once you're done, you simply deploy the app and you start making money from the application as you're paying for it. Windows Azure Databases (The Artist Formerly Known As SQL Azure) is a bit different. It's not emulated in the SDK - because it doesn't have to be. It's just SQL Server, with some differences in feature set. To develop in this environment, you can use SQL Server, any edition. Be aware of the feature differences, of course, but just develop away - even in the free "Express" or LocalDB flavors - and then right-click in SQL Server Management Studio to script objects. Script the database, but change the "Advanced" selection to the Engine Type of "SQL Azure". Bing. Although most all T-SQL ports directly, one thing to keep in mind is that you need a Clustered Index on every table. Often the Primary Key (PK) is a good choice for that.

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• links for 2011-01-06

  - by Bob Rhubart

  Coming to your town: Oracle Enterprise Cloud Summit During these full-day events, cloud experts will share real-world best practices, reference architectures, detailed customer case studies, and more. Events scheduled in cities around the world.  (tags: oracle otn cloud event) Webcast: Security and Compliance for Private Cloud Consolidation Roxana Bradescu, Senior Director for Oracle Database Security Products, discusses Oracle Database Security Solutions to securely consolidate data and meet compliance requirements within private cloud computing environments. Thursday, January 13, 2011. 10am PST | 1pm EST (tags: oracle cloud security) Answering Questions about Mobile Devices | The AppsLab "How do the numbers of Android and iOS users compare? How often are people switching? Where are all these BlackBerry and Nokia users? Do they plan to jump to Android or iOS? What about webOS? Is it relevant?" Some answers in this AppsLab survey. (tags: oracle otn enterprise2.0 mobilecomputing iphone blackberry android) Webcast: Achieve 24/7 Cloud Availability Without Expensive Redundancy Ashish Ray and Matthew Baier discuss Oracle’s Maximum Availability Architecture and Oracle Database 11g. (tags: oracle cloud highavailability webcast) Converting a PV vm back into an HVM vm (Wim Coekaerts Blog) "I wanted to convert one of my VMs that was based on a paravirt kernel into a vm that just boots as a regular hardware virt VM with a standard x86-64 kernel...It took me a little while to figure out the fastest way so now that I have it pretty much down I wanted to share the steps." - Wim Coekaerts (tags: oracle otn virtualization oraclevm) @OTN_Garage: Resources for VirtualBox 4.0 Rick "@OTN_Garage" Ramsey shares links to several resources for those with a VirtualBox jones. (tags: oracle otn virtualization virtualbox) 'Federal Service Bus' Helps Belgian Government Speak a Common Language - SOA in Action Blog "The first SOA-enabled application was developed in less than two months and was fully operational in approximately 10 weeks. In addition, new FSB modules are reusable for other Belgian e-government applications, saving both time and taxpayer dollars." - Joe McKendrick (tags: soa oracle) Show Notes: Architects in the Cloud (ArchBeat Podcast) The complete 4-part interview with Stephen G. Bennett and Archie Reed, the authors of "Silver Clouds, Dark Linings: A Concise Guide to Cloud Computing," is now available. (tags: oracle otn cloud podcast archbeat)

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• Demantra Performance Clustering Factor Out of Order Ratio TABLE_REORG CHECK_REORG (Doc ID 1594372.1)

  - by user702295

  Hello!   There is a new document available: Demantra Performance Clustering Factor Out of Order Ratio TABLE_REORG CHECK_REORG (Doc ID 1594372.1) Demantra Performance Clustering Factor Out of Order Ratio TABLE_REORG CHECK_REORG The table reorganization can be setup to automatically run in version 7.3.1.5.  In version 12.2.2 we run the TABLE_REORG.CHECK_REORG function at every appserver restart. If the function recommends a reorg then we strongly encourage to reorg the database object.  This is documented in the official docs. In versions 7.3.1.3 and 7.3.1.4, the TABLE_REORG module exists and can be used. It has two main functions that are documented in the Implementation Guide Supplement, Release 7.3, Part No. E26760-03, chapter 4. In short, if you are using version 7.3.1.3 or higher, you can check for the need to run a reorg by doing the following 2 steps: 1. Run TABLE_REORG.CHECK_REORG('T'); 2. Check the table LOG_TABLE_REORG for recommendations If you are on a version before 7.3.1.3, you will need to follow the instructions below to determine if you need to do a manual reorg. How to determine if a table reorg is needed 1. It is strongly encouraged by DEV that You gather statistics on the required table.  The prefered percentage for the gather is 100%. 2. Run the following SQL to evaluate how table reorg might affect Primary Key (PK) based access:   SELECT ui.index_name,trunc((ut.num_rows/ui.clustering_factor)/(ut.num_rows/ut.blocks),2) FROM user_indexes ui, user_tables ut, user_constraints uc WHERE ui.table_name=ut.table_name AND ut.table_name=uc.table_name AND ui.index_name=uc.index_name AND UC.CONSTRAINT_TYPE='P' AND ut.table_name=upper('&enter_table_name');   3. Based on the result: VALUE ABOVE 0.75 - DOES NOT REQUIRE REORG VALUE BETWEEN 0.5 AND 0.75 - REORG IS RECOMMENDED VALUE LOWER THAN 0.5 - IT IS HIGHLY RECOMMENDED TO REORG

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• How to deal with colleagues refuse to follow practices?

  - by Adrian Shum

  I was discussing with another colleague about what we should be used when an DB entity is referring to another. I don't think there is any good reason to break the practice of putting the Primary Key in the referring entity. However, one of my colleague says: "You should use a surrogate key in the entity, but it is better to put the human-readable natural key in the referring entity. As long it is unique, it is fine and it is easier when you are doing support or maintenance job" I know it will works, but obviously it is not a good practice you are putting a non-PK unique column as "foreign key", just for gaining a bit of ease in writing SQL during support as we can have less table join. Though I mentioned the his approach is conceptual incorrect, and causing problem too practically etc, he seems rather trade off correctness in data model in exchange of ease of maintenance. And he said: "I know it is not good practice, but good practice is not golden rule" Honestly I feel frustrated when dealing with something like this. I know there are always case that we should break some rule or practice, but doubtless it is not such case now. What will you when you are facing situation like this? Please assume yourself being a senior developer which is expected to contribute in misc development direction and convention.

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• In Visio 2010, how can I create a mandatory, non-identifying relationship between two database tables

  - by Cam Jackson

  I'm working in MS Visio 2010. This is the relevant part of my ERD: The relationship between Event and Adventure is correct: there's a foreign key from Event to Adventure, and that FK is part of Event's primary key. However, what I can't figure out is how to make the relationship line from Adventure to AccomodationType be the same, without making that relationship part of the PK of adventure. When I look at the 'Miscellaneous' properties of that relationship line, I want it to be: Cardinality: Zero or more Relationship type: Non-identifying Child has parent: Not optional (mandatory) But the checkbox for the third property is greyed out, and toggles between True/False as I make the relationship Non-identifying/Identifying. The only way I could figure out was to disconnect the two columns, from the 'Definition' tab, which then un-grey's the 'Optional' checkbox, but then I lose the foreign key property on the accomType column, and while the relationship symbols are correct, the line remains dotted. Any ideas, anyone?

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• What is the best way to design a table with an arbitrary id?

  - by P.Brian.Mackey

  I have the need to create a table with a unique id as the PK. The ID is a surrogate key. Originally, I had a natural key, but requirement changes have undermined this idea. Then, I considered adding an auto incrementing identity. But, this presents problems. A. I can't specify my own ID. B. The ID's are difficult to reset. Both of these together make it difficult to copy over this table with new data or move the table across domains, e.g. Dev to QA. I need to refer to these ID's from the front end, JavaScript...so they must not change. So, the only way I am aware of to meet all these challenges is to make a GUID ID. This way, I can overwrite the ID's when I need to or I can generate a new one without concern for order (E.G. an int based id would require I know the last inserted ID). Is a GUID the best way to accomplish my goals? Considering that a GUID is a string and joining on a string is an expensive task, is there a better way?

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• Big Data – Buzz Words: What is NewSQL – Day 10 of 21

  - by Pinal Dave

  In yesterday’s blog post we learned the importance of the relational database. In this article we will take a quick look at the what is NewSQL. What is NewSQL? NewSQL stands for new scalable and high performance SQL Database vendors. The products sold by NewSQL vendors are horizontally scalable. NewSQL is not kind of databases but it is about vendors who supports emerging data products with relational database properties (like ACID, Transaction etc.) along with high performance. Products from NewSQL vendors usually follow in memory data for speedy access as well are available immediate scalability. NewSQL term was coined by 451 groups analyst Matthew Aslett in this particular blog post. On the definition of NewSQL, Aslett writes: “NewSQL” is our shorthand for the various new scalable/high performance SQL database vendors. We have previously referred to these products as ‘ScalableSQL‘ to differentiate them from the incumbent relational database products. Since this implies horizontal scalability, which is not necessarily a feature of all the products, we adopted the term ‘NewSQL’ in the new report. And to clarify, like NoSQL, NewSQL is not to be taken too literally: the new thing about the NewSQL vendors is the vendor, not the SQL. In other words - NewSQL incorporates the concepts and principles of Structured Query Language (SQL) and NoSQL languages. It combines reliability of SQL with the speed and performance of NoSQL. Categories of NewSQL There are three major categories of the NewSQL New Architecture – In this framework each node owns a subset of the data and queries are split into smaller query to sent to nodes to process the data. E.g. NuoDB, Clustrix, VoltDB MySQL Engines – Highly Optimized storage engine for SQL with the interface of MySQ Lare the example of such category. E.g. InnoDB, Akiban Transparent Sharding – This system automatically split database across multiple nodes. E.g. Scalearc  Summary In simple words – NewSQL is kind of database following relational database principals and provides scalability like NoSQL. Tomorrow In tomorrow’s blog post we will discuss about the Role of Cloud Computing in Big Data. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Big Data, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL

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• DDD and Value Objects. Are mutable Value Objects a good candidate for Non Aggr. Root Entity?

  - by Tony

  Here is a little problem Have an entity, with a value object. Not a problem. I replace a value object for a new one, then nhibernate inserts the new value and orphan the old one, then deletes it. Ok, that's a problem. Insured is my entity in my domain. He has a collection of Addresses (value objects). One of the addresses is the MailingAddress. When we want to update the mailing address, let's say zipcode was wrong, following Mr. Evans doctrine, we must replace the old object for a new one since it's immutable (a value object right?). But we don't want to delete the row thou, because that address's PK is a FK in a MailingHistory table. So, following Mr. Evans doctrine, we are pretty much screwed here. Unless i make my addressses Entities, so i don't have to "replace" it, and simply update its zipcode member, like the old good days. What would you suggest me in this case? The way i see it, ValueObjects are only useful when you want to encapsulate a group of database table's columns (component in nhibernate). Everything that has a persistence id in the database, is better off to make it an Entity (not necessarily an aggregate root) so you can update its members without recreating the whole object graph, specially if that's a deep-nested object. Do you concur? Is it allowed by Mr. Evans to have a mutable value object? Or is a mutable value object a candidate for an Entity? Thanks

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• django fcgi - call a management command with subprocess.Popen

  - by user41855

  Hi, I'm using an app called django-chronograph. It has a code of line which works in my dev environment and does not work in production: p = subprocess.Popen(['python', get_manage_py(), 'run_job', str(self.pk)]) This line crashes in production with: unknown command run_job Whereas when I run directly from command line: manage.py run_job It works fine. Interestingly it worked once when we exchanged 'python' with 'usr/bin/python'. then we restarted the server once more and it was back to old behaviour. Thus it seems as we have a python path issue. I'm not the guy who is running the server, its my app that should run and it would be great to get some help here. Attention: I'm a total noob regarding server-administration.. server environment: NGINX with FCGI-Daemon FCGI in prefork-mode

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• .htaccess configuration issue

  - by Hammad Haider

  Hi, i am using two website on one domain like: www.example.com & www.example.com/site2, i want to know that on my site2, in my site2 their are 2 folders name folder1 and folder2 my index.php is in folder2 but the defination of methods defined in folder2 i am including the files through .htaccess but i am unable to get those files which are in folder1 and getting Error-500 and 400 on browser and i am using following lines but they are not working in .htaccess file The line below works fine RedirectMatch ^/$ http://www.example.com.pk/site2/views/ AllowOverride All php_value include_path ".:/home/example/public_html/site2/system" waiting for your quick response. Thanks Regards, Hammad Haider.

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• How to connect cable internet on ubuntu

  - by NAVEED

  I was using my cable internet on windows and it was working. Now I moved to ubuntu for development work. But I am unable to connect this internet on ubuntu. I called their technical support and they ask me to install PTPPN (I have forgot the exact name) and then provide our server name, your username and passowrd. I download that software PTPPN(whatever) by using a debian file but I did not find it after installation. I tried to contact to technical support again but unable to connect. Can someone please tell the exact name of that software and how to install and then connect to internet on ubuntu? I have only the following information for now: Install "PTPN" on ubuntu. (forgot exact name of this package) servername: blue.connect.net.pk username: myusername password: mypassword Thanks

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• I have deleted python files in usr/bin and cant reinstall it

  - by Plonkaa

  I am a novice at Ubuntu and unfortunately i have deleted 3 files in the usr/bin folder python 2.7 python python 2.6 Now my update manager wont work and when i type in python into gnome it says that it is no longer there. Please help me ive tried loads of different things but it just wont work. The closest i got was the following: I typed in sudo apt-get -f install and i thought i had fixed it but then i got a error message - Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are no longer required: gir1.2-folks-0.6 gir1.2-polkit-1.0 libcogl5 mutter-common gir1.2-json-1.0 libcaribou0 gir1.2-accountsservice-1.0 gir1.2-clutter-1.0 gir1.2-gkbd-3.0 gir1.2-networkmanager-1.0 caribou libcogl-common libmutter0 gir1.2-mutter-3.0 gjs gir1.2-caribou-1.0 libclutter-1.0-0 gir1.2-telepathylogger-0.2 libclutter-1.0-common cups-pk-helper gir1.2-upowerglib-1.0 gir1.2-cogl-1.0 libmozjs185-1.0 gir1.2-telepathyglib-0.12 gir1.2-gee-1.0 libgjs0c gnome-shell-common Use 'apt-get autoremove' to remove them. The following extra packages will be installed: ubuntu-sso-client The following packages will be upgraded: ubuntu-sso-client 1 upgraded, 0 newly installed, 0 to remove and 35 not upgraded. 2 not fully installed or removed. Need to get 0 B/57.7 kB of archives. After this operation, 16.4 kB of additional disk space will be used. Do you want to continue [Y/n]? y Setting up python-minimal (2.7.2-7ubuntu2) ... /var/lib/dpkg/info/python-minimal.postinst: 4: python2.7: not found dpkg: error processing python-minimal (--configure): subprocess installed post-installation script returned error exit status 127 Errors were encountered while processing: python-minimal E: Sub-process /usr/bin/dpkg returned an error code (1) any advice is appreciated!

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• Problems with webcam

  - by Murtaza

  My friend is using Windows 8.1, and he has a webcam. He says it is working very well even without installing drivers. Webcam is A4tech - PK-331F. I asked for this webcam for use. I plugged in the webcam, and Windows detected it and installed drivers automatically. Then I opened Skype to check the webcam. I got a message from Skype that said, "Your webcam has microphone." When I clicked over it, it directed me to sound settings where it showed that the webcam microphone was working. I went to video settings, but the webcam wasn't listed there. As you can see in the image, the webcam is not listed. It is listed in Device Manager but isn't listed in Skype. I am using Windows 7 Professional. Any idea why this is happening?

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• I need an approach to the problem of preventing inserting duplicate records into the database

  - by Maurice

  Apologies is this question is asked on the incorrect "stack" A webservice that I call returns a list of data. The data from the webservice is updated periodically, so a call to the webservice done in one hour could return the same data as a call done in an hour. Also, the data is returned based on a start and end date. We have multiple users that can run the webservice search, and duplicate data is most likely to be returned (especially for historical data). However I don't want to insert this duplicate data in the database. I've created a db table in which the data is stored (most important columns are) Id int autoincrement PK Date date not null --The date to which the data set belongs. LastUpdate date not null --The date the data set was last updated. UserName varchar(50) --The name of the user doing the search. I use sql server 2008 express with c# 4.0 and visual studio 2010. Entity Framework is used as the ORM. If stored procedures could be avoided in the proposed solution, then that will be a plus. Another way of looking interpreting what I'm asking a solution for is as follows: I have a million unique records in my table. A user does a new search. The search results from the user contains around 300k of the data that is already in the db. An efficient solution to finding an inserting only the unique records is needed.

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• Problems with webcame

  - by Murtaza

  My friends is using windows 8.1 and he has a webcam. He says it is working very well even without installing drivers. Webcam is A4tech - PK-331F. I asked for this webcam for use. I plugged that that webcam and windows detected it and installed drivers automatically. Then I opened Skype for checking webcam. I got massage on top of Skype that "your webcam has microphone" when I clicked over it, it directed me to sound settings where I microphone of webcam was working. I went to videos settings but webcam wasn't listed their. As you can see in image. Webcam is listed in device manager but isn't listed in Skype. I am also using windows 7 professional. Any idea why it is happening?

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• How to prevent Windows from doing this

  - by Murtaza

  I am using Windows 7 Professional 64bit. This is my webcam. It is first time using this webcam in my pc. It's name is A4tech - PK-331F. When I plugged that webcam, windows start installing drivers automatically but unfortunately it installed wrong drivers. The drivers Windows 7 installed are Vimicro USB 2.0 PC Camera (Venus) and these drivers aren't related to this webcam. Now I did some modifications to windows so it isn't installing drivers automatically but whenever I plug that webcam but same name of drivers and doesn't install it. I think because of it, I can't install it's original drivers. I don't want Windows recognize this webcam with this name. How can I prevent Windows from doing this?.

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• Laptop power button not working

  - by DyP

  I have a (seemingly rather exotic) Dell Latitude XT2 notebook running Lubuntu 12.04, fresh install. Tried to get the power button to work as expected (opening lubuntu-logout, just as I think it was meant to be out-of-the box), but no success: power button does nothing but forced power-off on long press. Here some more information, please ask if something more could help: Power button is recognized as a device: xinput lists Power Button as a slave keyboard at /dev/input/event1, and I can run a tool to listen to that device and invoke some action (successfully). But using .config/openbox/lubuntu-rc.xml to assign some action to XF86ShutDown or XF86PowerOff does nothing. Works well for any key of the keyboard. xinput --test reports a keycode (key press, key release) of 124 when pressing & releasing the power button. xmodmap -pk lists 124 mapped to XF86PowerOff which seems correct to me (btw: is this the same as XF86ShutDown?) When assigning another keysymname to the 124 keycode, e.g. 'w', still nothing happens when pressing the power button (no window seems to receive a 'w'). Works well for any key on the keyboard. The outputs of xev for a press/release of the power button irritate me: MappingNotify event, serial 41, synthetic NO, window 0x0, request MappingKeyboard, first_keycode 8, count 248 FocusOut event, serial 41, synthetic NO, window 0x2a00001, mode NotifyGrab, detail NotifyAncestor FocusIn event, serial 41, synthetic NO, window 0x2a00001, mode NotifyUngrab, detail NotifyAncestor KeymapNotify event, serial 41, synthetic NO, window 0x0, keys: 93 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (instead of 93, I also get different values) I might have missed something very basic since I'm not very familiar with both openbox/lubuntu and the X input system. Btw.: same goes for three other special buttons on my laptop..

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• file sharing over external and internal networks

  - by pradvk

  Dear friends, Please tell me whether it is possible for someone on the external network to see the network folder shares of an internal LAN network in DHCP (192.168.x.x) through a Comp-A on an external network in DHCP (123.123.x.x) both networks are on different subnets but Comp-A has access to both networks and can see all the shared drives of both the internal and external networks using firewall is not an option because file sharing is required everywhere. care is taken from viruses/trojans... remote desktop etc is disabled on Comp-A Please let me know. Thanks and Regards pk

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• How to run script from root as another user (with user PATH)

  - by Sandra

  I would like to have these commands run as the ss user from root mkdir bin cp -r /opt/gitolite . gitolite/install -ln gitolite setup -pk ss.pub mkdir -p .gitolite/hooks/common ln -s /opt/pre-receive .gitolite/hooks/common/ so everything is executed in /home/ss. The 4th line requires $HOME/bin as you can see from the 3rd line. The only way I can get it to work is by adding su -c "command" ss to each line, which is not a nice hack. This is an extension to my previous question, where I wasn't precise enough. Question How do I run all these commands as a script in a practical way?

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• Configuring default gateway returned by dhcp server

  - by comp1mp

  Hello, I have a machine which connects via ethernet to a private LAN, and wireless to a network which provides internet connectivity. The private LAN uses a wireless router to perform DHCP. The problem is that the wireless and NIC adapters have different default gateways. The default gateway for the private LAN has a lower adapter metric, and is thus chosen by the routing algorithm. I am thus unable to browse the internet when connected to both adapters. The following link has a solution for manually setting the adapter metric to a high number. http://superuser.com/questions/77822/how-to-tell-windows-7-to-ignore-a-default-gateway I was hoping to find a different solution. Does any one know of a router that allows you to configure its DHCP server to return an empty default gateway? I cannot find such an option for my linksys wrt300n. Configuring a static ip address with no default gateway does work, however I would like to use DHCP if possible. Does anyone know of a different way to specify a default gateway for a windows 7 machine with multiple network adapters without mucking with the adapter metric? Thanks, Matthew

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