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• Cannot use apt-get anymore because of one specific package

  - by Alex K.

  No matter what type of apt-get I run (install, update, ...) I always get: dpkg: warning: files list file for package `libgdata-google1.2-1' missing, assuming package has no files currently installed. dpkg: warning: files list file for package `libntlm0' missing, assuming package has no files currently installed. (Reading database ... 354644 files and directories currently installed.) Preparing to replace libntlm0 1.1-1 (using .../libntlm0_1.1-1_i386.deb) ... Unpacking replacement libntlm0 ... At this point apt-get hang. Does somebody know a way to fix this? Some days ago a line in source.list was removed (Google Chrome).

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• Is it Considered Good SQL practice to use GUID to link multiple tables to same Id field?

  - by Mallow

  I want to link several tables to a many-to-many(m2m) table. One table would be called location and this table would always be on one side of the m2m table. But I will have a list of several tables for example: Cards Photographs Illustrations Vectors Would using GUID's between these tables to link it to a single column in another table be considered 'Good Practice'? Will Mysql let me to have it automatically cascade updates and delete? If so, would multiple cascades lead to an issues? UPDATE I've read that GUID (a hex number) Generally takes up more space in a database and slows queries down. However I could still generate 'unique' ids by just having the table initial's as part of the id so that the table card's id would be c0001, and then Illustrations be I001. Regardless of this change, the questions still stands.

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• How do I Export to excel on aspx page?

  - by meltdownmonk

  I am trying to take data that I request from an access database and put it into and excel file on the client computer. I usually use ajax to request a summary of the data I need. It is formatted into an html table. I need that table to be in an excel format for the user to download. What I have tried already is to use the vb.net code to open excel and silently save the data to a file, however I realized it's the sever side that opens excel, not the client side, in my locally testing of the code, excel would open on my machine and create the file. When running this on the network, I realized excel isn't on the server, I am not sure if I should just install it, or try and steam the file.

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• OTN APAC Tour 2012: Bangkok, Thailand - Oct 22, 2012

  - by Mike Dietrich

  Roy had done some of the South America OTN Tour 2012 dates earlier this year in Peru and Chile. And I'm looking forward to present next Monday, October 22nd, 2012, on the OTN Tour 2012 in Bangkok, Thailand. The event will be held at the Eastin Grand Hotel in Bangkok. Register today for the OTN APAC Tour 2012 in Bangkok, Thailand! Presentations will include: 9:30am - 10:15am:Best Practices for Upgrading to Oracle Database 11.2 1:00pm - 1:45pm:How to improve Upgrade Performance - Real Speed, Real Customers, Real Secrets 2:45pm - 3:30pm:Oracle Data Pump: Overview and Best Practices Plus presentations  about Security, RMAN and other topics by Francisco Alvarez and others. Please find the complete agenda here. Looking forward to meet you on Monday - CU there

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• How activity id affects calculations such as schedule % complete when using a baseline?

  - by Jeffrey McDaniel

  Fields such as schedule % complete, planned value costs, etc. that use a baseline to help determine the value depend on the activity id's to match between the baseline project and the current project. If the activity id is changed the link is broken. In the P6 power client there is an internal guid that allows you to change the activity id in either the baseline or current project and still have these values related. In the P6 Reporting Database the activity id is used as the joining characteristic between which activities are a match between a baseline project and a current project.

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• Greatly Enhanced LINQ Capabilities in Devart ADO.NET Data Providers

  Devart has recently announced the release of dotConnect products for Oracle, MySQL, PostgreSQL, and SQLite - ADO.NET providers that offer Entity Framework support, LINQ to SQL support, and contain an ORM model designer for developing LINQ to SQL and EF models based on different database engines. New dotConnect ADO.NET Providers offer advanced LinqConnect ORM solution (formerly known as Devart LINQ support) closely compatible with Microsoft LINQ to SQL and having its own advanced features. Devart...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Mobile My Oracle Support 6.3 Release is live!

  - by JanSyss

  We have released Mobile My Oracle Support 6.3 last Saturday (13-Oct-2012), including 10 enhancements and almost 40 bug fixes. Mobile My Oracle Support is My Oracle Support's webapplication optimized for mobile devices to manage your Service Requests, your On Demand Requests for Change (RFCs), search over Support's Knowledge Base, Bug database or Sun System Handbook, and to manage your pending user requests (CUA). You can find the application at http://support.oracle.mobi  or get redirected from http://support.oracle.com when using a mobile device. Overall Several UI optimizations in different screens. Service Request Area Show the platinum icon for Platinum SRs and the restore status for Platinum Sev 1s. Email send with Share functionality now contains links to Mobile MOS and Full Site. Knowledge Management Area Ability in Advanced Search to search the Sun System Handbook (cfr. screenshot below) Better rendering of the KB documents to avoid where possible horizontal scrolling. Don't hesitate to share your feedback and comments or even requests.

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• What are options for 3rd Party Centralized Software Settings Management?

  - by Jeff Martin

  I am an architect in an enterprise looking to build a SaaS solution. Our products are distributed over many different deployable containers, Web Services, Web UI's, etc. I am looking for some open-source or 3rd party software solution to manage the settings of our application. These would be similar to the settings you might find in Word or Eclipse or Visual Studio. The settings would control various behaviors and features of the product. (Probably not settings like which database to connect to but more like, should I show line numbers on the page or not by default..). Ideally, we would be able to store values for different dimensions (by tenant, by user, by application environment... ) Because we have so many different deployables, I am looking for a centralized solution that can provide a web service that each of the deployables can get their individual settings from. Does anyone know of a centralized service providing this sort of features or give me some help in searching for an alternative to rolling our own?

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• easy visualization of usage statistics (web app)

  - by sova

  I have some usage queries for my web app's database, the results of which I want to display graphically. Is there an easy-to-use api that exists for this purpose? I want to show things like average query-time per user (a small user-base), average query time per day, and things like that. I think it would be cool to show these on a two-axis graph. I am displaying this data on my site, so a jQuery/javascript/html solution for rendering information into graphs would be ideal. Thank you :) P.S. I wasn't sure if I should ask this on SO, but I am looking more for which product to use, not how to program with it.

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• Which folders need to be backedup for migration in Joomla?

  - by Devdatta Tengshe

  I have never used Joomla before, so this might be a noobish question. I have tried searching, but haven't found anything relevant. I'm helping someone update & migrate their old website, built on the Joomla framework. Currently it is running on Joomla 1.5.8 which is an ancient version. I've convinced them to upgrade Joomla to atleast 2.5 I have already taken the database backup. Most links I have seen talk of backing up the entire public_html folder (The website runs on a shared host). But in my fresh Joomla installation there are several folders that are in the public_html folder. So which of the folders in the public_html folder are from the content of the website, and which are of the old Joomla framework? I'm afraid that I might overwrite files of the new Joomla framework with the old framework, if copy all the files and folders into the new installation.

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• In PHP, what are the different design patterns to implement OO controllers as opposed to procedural controllers?

  - by Ryan

  For example, it's very straightforward to have an index.php controller be a procedural script like so: <?php //include classes and functions //get some data from the database //and/or process a form submission //render HTML using your template system ?> Then I can just navigate to http://mysite.com/index.php and the above procedural script is essentially acting as a simple controller. Here the controller mechanism is a basic procedural script. How then do you make controllers classes instead of procedural scripts? Must the controller class always be tied to the routing mechanism?

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• Would this be considered Single Tenant or Multi-Tenant?

  - by Amy Anuszewski

  I'm sorry for this dumb, basic vocabulary question, but I've managed to confuse myself. As a company, we lease a managed server from a provider. In that sense, our server is a single tenant server. On this server, we have multiple customer databases. Each customer has its own database. We have been asked by a customer if we are a single tenant or a multi-tenant solution. From our perspective, we are the sole tenant of the server. But, what is the correct answer to the customer?

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• What Book-Library Organizing Programs are available?

  - by el10780

  I would like to ask if there is any good program for ubuntu 12.04 to organize a library of books.I want to mention that I also have books written in my native language (Greek) and I have books written in other languages like English,French, etc too .So basically I need an application which can fetch information from databases for Greek books. For example - Adding a Greek (ISBN) book database source and when I type the ISBN of the book in the program ,it should find the book from that databases. Is this possible? I already tried Tellico and GCstar but they were unable to find books with Greek ISBN .I tried to add a Greek book source but it wasn't successful.

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• Declarative Transactions in Node.js

  - by James Kingsbery

  Back in the day, it was common to manage database transactions in Java by writing code that did it. Something like this: Transaction tx = session.startTransaction(); ... try { tx.commit(); } catch (SomeException e){ tx.rollback(); } at the beginning and end of every method. This had some obvious problems - it's redundant, hides the intent of what's happening, etc. So, along came annotation-driven transactions: @Transaction public SomeResultObj getResult(...){ ... } Is there any support for declarative transaction management in node.js?

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• Backup a Single Table in SQL Server using SSMS

  - by Greg Low

  Our buddy Buck Woody made an interesting post about a common question: "How do I back up a single table in SQL Server?" That got me thinking about what a backup of a table really is. BCP is often used to get the data but you want the schema as well. For reasonable-sized tables, the easiest way to do this now is to create a script using SQL Server Management Studio. To do this, you: 1. Right-click the database (note not the table) 2. Choose Tasks > Generate Scripts 3. In the Choose Objects pane,...(read more)

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• HOPE Programm bis 31. Dezember 2012 verlängert!

  - by A&C Redaktion

  Hochperformante IT zu bezahlbaren Preisen ist für Kunden aus Forschung und Lehre eine ganz besondere Herausforderung. Den speziellen Anforderungen und Bedürfnissen dieses hauptsächlich durch Partner bedienten Segments kommt Oracle gerne entgegen: Wir haben unser F&L-Programm "Hardware from Oracle - Pricing for Education" (HOPE) bis zum 31.12.2012 verlängert, das folgende Hardware-Produkte zu stark vergünstigten Konditionen beinhaltet: Oracle SPARC T4 Server – bis zu 5x schneller als ihre Vorgängersysteme, dabei 100% kompatibel zu allen SPARC/Solaris Applikationen Oracle x86 Server – Linux und Solaris, Virtualisierung und Systems Management inklusive Oracle ZFS Storage Appliances – Enterprise NAS mit führender Leistung, Kosteneffizienz und Benutzerfreundlichkeit Oracle Tape Systeme – Bewährte StorageTek Band- und Bibliothekslösungen Oracle Database Appliance – Hochverfügbare und einfach zu verwaltende Appliance für die Oracle Datenbank 11gR2, mit „Pay-As-You-Grow“-Lizenzmodell Mehr Details und Ihre Ansprechpartner bei Oracle finden Sie in unserem aktuellen deutschsprachigen Flyer.

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• Run Java application as a different user [on hold]

  - by Harihar Das

  I need to run a few perl scripts from a Java GUI application. I am using Runtime API to do that. However, few of the perl scripts need to run under a specific user account to have special credentials to access specialized resources (e.g. Database, Files). I have heard of alleviating user access using UAC. But till now I am not able to find the solution. Please help me on how to run a process under a different user login. Is there anything similar to c# impersonization in Java?

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• Oracle University Nuovi corsi (Week 23)

  - by swalker

  Oracle University ha recentemente rilasciato i seguenti nuovi corsi in inglese: Engineered Systems Exadata Database Machine Administration Workshop (Training On Demand) Development Tools Oracle Fusion Middleware 11g: Build Applications with ADF I (Training On Demand) Fusion Middleware Oracle AIA Foundation Pack 11g: Developing Applications (Training On Demand) Oracle Exalogic Elastic Cloud Administration (Training On Demand) Oracle GoldenGate 11g Fundamentals for Oracle (Training On Demand) Oracle Fusion Middleware 11g: Build Applications with ADF I (Training On Demand) Oracle WebCenter Portal 11g: Spaces Administration (3 giorni) Java Architect Enterprise Applications with Java EE (5 giorni) Hyperion Oracle Hyperion Planning 11.1.2: Create & Manage Applications (Training On Demand) Oracle Hyperion Financial Mgmt 11.1.2: Create & Manage Applications (Training On Demand) Per ulteriori informazioni e per conoscere le date dei corsi, contattate il vostro Oracle University team locale. Rimanete in contatto con Oracle University: LinkedIn OracleMix Twitter Facebook Google+

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• Writing a dynamic achievement system without hardcoding rules into the application

  - by imaginative

  I really enjoyed the solution provided here for groundwork on writing an achievement framework. The problem I have is I have game designers that would like to be able to insert achievements into a CMS at runtime. In a way, it sounds insane and complex to do this, but is it really? I think the concept of having to do a hard push of the application for every new achievement is cumbersome. I would love to be able to give our designers the capability to put together new achievements by entering them into a database. It shouldn't matter what tool I'm using, but for those interested, my backend is being written in JRuby (Ruby on top of the JVM). What are some possible ways of going about abstracting the logic in the aforementioned link even further so that rules can be interpreted at runtime?

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• What is the general definition of something that can be included or excluded?

  - by gutch

  When an application presents a user with a list of items, it's pretty common that it permits the user to filter the items. Often a 'filter' feature is implemented as a set of include or exclude rules. For example: include all emails from [email protected], and exclude those emails without attachments I've seen this include/exclude pattern often; for example Maven and Google Analytics filter things this way. But now that I'm implementing something like this myself, I don't know what to call something that could be either included or excluded. In specific terms: If I have a database table of filter rules, each of which either includes or excludes matching items, what is an appropriate name of the field that stores include or exclude? When displaying a list of filters to a user, what is a good way to label the include or exclude value? (as a bonus, can anyone recommend a good implementation of this kind of filtering for inspiration?)

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• Which folders need to be backed up for migration in Joomla?

  - by Devdatta Tengshe

  I'm helping someone update & migrate their old website, built on the Joomla framework. Currently it is running on Joomla 1.5.8 which is an ancient version. I've convinced them to upgrade Joomla to at least 2.5 I have already made a backup of the database. Most links I have seen talk of backing up the entire public_html folder (The website runs on a shared host). But in my fresh Joomla installation there are several folders that are in the public_html folder. So which of the folders in the public_html folder are from the content of the website, and which are of the old Joomla framework? I'm afraid that I might overwrite files of the new Joomla framework with the old framework, if copy all the files and folders into the new installation.

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• Storing non-content data in Orchard

  - by Bertrand Le Roy

  A CMS like Orchard is, by definition, designed to store content. What differentiates content from other kinds of data is rather subtle. The way I would describe it is by saying that if you would put each instance of a kind of data on its own web page, if it would make sense to add comments to it, or tags, or ratings, then it is content and you can store it in Orchard using all the convenient composition options that it offers. Otherwise, it probably isn't and you can store it using somewhat simpler means that I will now describe. In one of the modules I wrote, Vandelay.ThemePicker, there is some configuration data for the module. That data is not content by the definition I gave above. Let's look at how this data is stored and queried. The configuration data in question is a set of records, each of which has a number of properties: public class SettingsRecord { public virtual int Id { get; set;} public virtual string RuleType { get; set; } public virtual string Name { get; set; } public virtual string Criterion { get; set; } public virtual string Theme { get; set; } public virtual int Priority { get; set; } public virtual string Zone { get; set; } public virtual string Position { get; set; } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Each property has to be virtual for nHibernate to handle it (it creates derived classed that are instrumented in all kinds of ways). We also have an Id property. The way these records will be stored in the database is described from a migration: public int Create() { SchemaBuilder.CreateTable("SettingsRecord", table => table .Column<int>("Id", column => column.PrimaryKey().Identity()) .Column<string>("RuleType", column => column.NotNull().WithDefault("")) .Column<string>("Name", column => column.NotNull().WithDefault("")) .Column<string>("Criterion", column => column.NotNull().WithDefault("")) .Column<string>("Theme", column => column.NotNull().WithDefault("")) .Column<int>("Priority", column => column.NotNull().WithDefault(10)) .Column<string>("Zone", column => column.NotNull().WithDefault("")) .Column<string>("Position", column => column.NotNull().WithDefault("")) ); return 1; } When we enable the feature, the migration will run, which will create the table in the database. Once we've done that, all we have to do in order to use the data is inject an IRepository<SettingsRecord>, which is what I'm doing from the set of helpers I put under the SettingsService class: private readonly IRepository<SettingsRecord> _repository; private readonly ISignals _signals; private readonly ICacheManager _cacheManager; public SettingsService( IRepository<SettingsRecord> repository, ISignals signals, ICacheManager cacheManager) { _repository = repository; _signals = signals; _cacheManager = cacheManager; } The repository has a Table property, which implements IQueryable<SettingsRecord> (enabling all kind of Linq queries) as well as methods such as Delete and Create. Here's for example how I'm getting all the records in the table: _repository.Table.ToList() And here's how I'm deleting a record: _repository.Delete(_repository.Get(r => r.Id == id)); And here's how I'm creating one: _repository.Create(new SettingsRecord { Name = name, RuleType = ruleType, Criterion = criterion, Theme = theme, Priority = priority, Zone = zone, Position = position }); In summary, you create a record class, a migration, and you're in business and can just manipulate the data through the repository that the framework is exposing. You even get ambient transactions from the work context.

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• Simple way to create a SQL Server Job Using T-SQL

  Sometimes we have a T-SQL process that we need to run that takes some time to run or we want to run it during idle time on the server. We could create a SQL Agent job manually, but is there any simple way to create a scheduled job? The seven tools in the SQL DBA Bundle support your core SQL Server database administration tasks.Make backups a breeze! Enjoy trouble-free troubleshooting! Make the most of monitoring! Download a free trial now.

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• Build My Own Advertising Network

  - by clifgray

  I have a few ideas that I think would be pretty game changing for online advertising and I would like to build my own network but I don't know where to start. I know it will take a lot of time for major publishers to get on board but I am more curious about the technical side. What language/database model and framework are modern ad networks built on? Basically I want to build an advertising network that registers views per page and allows publishers to manage the look of their own ads and let's the users interact with the ads. Is there any good information on doing something like this or any framework you can suggest to build on? I know this would get complicated pretty fast so if you have suggestions for ad networks that let you customize them heavily I would be glad to hear your suggestions.

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• Should an object know its own ID?

  - by xenoterracide

  obj.id seems fairly common and also seems to fall within the range of something an object could know about itself. I find myself asking why should my object know its own id? It doesn't seem to have a reason to have it? One of the main reason for it existing is retrieve it, and so my repositories need to know it, and thus use it for database interaction. I also once encountered a problem where I wanted to serialize an object to JSON for a RESTful API where the id did not seem to fit in the payload, but only the URI and including it in the object made that more difficult. Should an object know it's own id? why or why not?

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