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  • Oracle ADF Essentials - An free version of Oracle ADF

    - by asantaga
    Not sure if you’ve seen this announcement, but Oracle have launched a free version of Oracle ADF, named ADF Essentials.. Its basically a  version of Oracle ADF which can also run on other app Servers and contains the full ADF Stack from ADF Faces , ADF Controller/Model and ADF Business Components. See here for more information  http://www.oracle.com/technetwork/developer-tools/adf/overview/adfessentials-1719844.html also see an independent review at http://www.theregister.co.uk/2012/09/25/oracle_adf_essentials_launch/

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  • Visual Studio Load Testing using Windows Azure

    - by Tarun Arora
    In my opinion the biggest adoption barrier in performance testing on smaller projects is not the tooling but the high infrastructure and administration cost that comes with this phase of testing. Only if a reusable solution was possible and infrastructure management wasn’t as expensive, adoption would certainly spike. It certainly is possible if you bring Visual Studio and Windows Azure into the equation. It is possible to run your test rig in the cloud without getting tangled in SCVMM or Lab Management. All you need is an active Azure subscription, Windows Azure endpoint enabled developer workstation running visual studio ultimate on premise, windows azure endpoint enabled worker roles on azure compute instances set up to run as test controllers and test agents. My test rig is running SQL server 2012 and Visual Studio 2012 RC agents. The beauty is that the solution is reusable, you can open the azure project, change the subscription and certificate, click publish and *BOOM* in less than 15 minutes you could have your own test rig running in the cloud. In this blog post I intend to show you how you can use the power of Windows Azure to effectively abstract the administration cost of infrastructure management and lower the total cost of Load & Performance Testing. As a bonus, I will share a reusable solution that you can use to automate test rig creation for both VS 2010 agents as well as VS 2012 agents. Introduction The slide show below should help you under the high level details of what we are trying to achive... Leveraging Azure for Performance Testing View more PowerPoint from Avanade Scenario 1 – Running a Test Rig in Windows Azure To start off with the basics, in the first scenario I plan to discuss how to, - Automate deployment & configuration of Windows Azure Worker Roles for Test Controller and Test Agent - Automate deployment & configuration of SQL database on Test Controller on the Test Controller Worker Role - Scaling Test Agents on demand - Creating a Web Performance Test and a simple Load Test - Managing Test Controllers right from Visual Studio on Premise Developer Workstation - Viewing results of the Load Test - Cleaning up - Have the above work in the shape of a reusable solution for both VS2010 and VS2012 Test Rig Scenario 2 – The scaled out Test Rig and sharing data using SQL Azure A scaled out version of this implementation would involve running multiple test rigs running in the cloud, in this scenario I will show you how to sync the load test database from these distributed test rigs into one SQL Azure database using Azure sync. The selling point for this scenario is being able to collate the load test efforts from across the organization into one data store. - Deploy multiple test rigs using the reusable solution from scenario 1 - Set up and configure Windows Azure Sync - Test SQL Azure Load Test result database created as a result of Windows Azure Sync - Cleaning up - Have the above work in the shape of a reusable solution for both VS2010 and VS2012 Test Rig The Ingredients Though with an active MSDN ultimate subscription you would already have access to everything and more, you will essentially need the below to try out the scenarios, 1. Windows Azure Subscription 2. Windows Azure Storage – Blob Storage 3. Windows Azure Compute – Worker Role 4. SQL Azure Database 5. SQL Data Sync 6. Windows Azure Connect – End points 7. SQL 2012 Express or SQL 2008 R2 Express 8. Visual Studio All Agents 2012 or Visual Studio All Agents 2010 9. A developer workstation set up with Visual Studio 2012 – Ultimate or Visual Studio 2010 – Ultimate 10. Visual Studio Load Test Unlimited Virtual User Pack. Walkthrough To set up the test rig in the cloud, the test controller, test agent and SQL express installers need to be available when the worker role set up starts, the easiest and most efficient way is to pre upload the required software into Windows Azure Blob storage. SQL express, test controller and test agent expose various switches which we can take advantage of including the quiet install switch. Once all the 3 have been installed the test controller needs to be registered with the test agents and the SQL database needs to be associated to the test controller. By enabling Windows Azure connect on the machines in the cloud and the developer workstation on premise we successfully create a virtual network amongst the machines enabling 2 way communication. All of the above can be done programmatically, let’s see step by step how… Scenario 1 Video Walkthrough–Leveraging Windows Azure for performance Testing Scenario 2 Work in progress, watch this space for more… Solution If you are still reading and are interested in the solution, drop me an email with your windows live id. I’ll add you to my TFS preview project which has a re-usable solution for both VS 2010 and VS 2012 test rigs as well as guidance and demo performance tests.   Conclusion Other posts and resources available here. Possibilities…. Endless!

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  • Best Practices to Accelerate Oracle VM Server Deployments

    - by Honglin Su
    IOUG (Independent Oracle User Group) Virtualization SIG is hosting the webcast on the best practices of Oracle VM server virtualization. July 11, 2012 - Best Practices to Accelerate Oracle VM Server on SPARC Deployments. Register here. To learn the best practices on Oracle VM Server for x86,  watch the session replay here. For more white paper about best practices, visit Oracle VM OTN page here.

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  • Authorizing a module in a framework

    - by Devon
    I've been studying PHP frameworks and I've been looking for how you would go about properly authorizing a module for classes, methods, and database actions. For example, lets say I want a framework that includes different modules from different programmers: Some core class may require special access, not all modules should have access to every core class unless authorized to. I do not want one module to be able to call another module's class/method if it is not supposed to be able to. I also don't want a security flaw in one module to be able to affect another module's database tables. I suppose an easy way to go about this is have a database table for authorization to consult, but I doubt that is the best way to go about this. I'd appreciate any advice or pointing me in the right direction for some reading.

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  • DBA job ranked #7 for Best Job in America 2010

    - by Tara Kizer
    I started my IT career as a student worker in the database team at the County of San Diego.  Although I worked on many different things in that group, it launched my career as a Database Administrator.  You can get an overview of my career here. It seems I picked the right career for a good job in America.  According to CNNMoney and PayScale, a database administrator job is ranked number 7 for the best job in America in 2010.  Check it out here. There are quite a few IT jobs on the list.  You can check out the full list here. Do you agree with this ranking?

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  • Questions re: Eclipse Jobs API

    - by BenCole
    Similar to http://stackoverflow.com/questions/8738160/eclipse-jobs-api-for-a-stand-alone-swing-project This question mentions the Jobs API from the Eclipse IDE: ...The disadvantage of the pre-3.0 approach was that the user had to wait until an operation completed before the UI became responsive again. The UI still provided the user the ability to cancel the currently running operation but no other work could be done until the operation completed. Some operations were performed in the background (resource decoration and JDT file indexing are two such examples) but these operations were restricted in the sense that they could not modify the workspace. If a background operation did try to modify the workspace, the UI thread would be blocked if the user explicitly performed an operation that modified the workspace and, even worse, the user would not be able to cancel the operation. A further complication with concurrency was that the interaction between the independent locking mechanisms of different plug-ins often resulted in deadlock situations. Because of the independent nature of the locks, there was no way for Eclipse to recover from the deadlock, which forced users to kill the application... ...The functionality provided by the workspace locking mechanism can be broken down into the following three aspects: Resource locking to ensure multiple operations did not concurrently modify the same resource Resource change batching to ensure UI stability during an operation Identification of an appropriate time to perform incremental building With the introduction of the Jobs API, these areas have been divided into separate mechanisms and a few additional facilities have been added. The following list summarizes the facilities added. Job class: support for performing operations or other work in the background. ISchedulingRule interface: support for determining which jobs can run concurrently. WorkspaceJob and two IWorkspace#run() methods: support for batching of delta change notifications. Background auto-build: running of incremental build at a time when no other running operations are affecting resources. ILock interface: support for deadlock detection and recovery. Job properties for configuring user feedback for jobs run in the background. The rest of this article provides examples of how to use the above-mentioned facilities... In regards to above API, is this an implementation of a particular design pattern? Which one?

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  • Store a formula in a table and use the formula in a javascript/PHP function

    - by Muhaimin Abdul
    I have a MySql database where part of it handles instrument's depth of water. Each instrument has its own formula of calculation how depth the water when the operator collect the reading I stored the formula for each instrument in database/MySql. Example formula: [55-57] this is the simple minus operation, where the number is actually represent the id of a row. How do I represent those number with id of a row and later convert it to javascript readable code. I simply want to do keyup event where everytime user key in something into text field then the other part of HTML would reflect changes based on formula that I fetched from database FYI, I'm using BackboneJS together with RequireJS

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  • Oracle apresenta resultados do ano

    - by pfolgado
    A Oracle acabou de apresentar os resultados do 4º trimestre e do ano fiscal FY11. Os resultados mais relevantes são: Receitas de Vendas cresceram 33%, atingindo um total de 35,6 mil milhões de dólares Vendas de Novas licenças cresceram 23% Receitas de Hardware de 4,4 mil milhões de dólares Resultados operacionais cresceram 39% Resultados por acção de cresceram 38% para 1,67 dólares “In Q4, we achieved a 19% new software license growth rate with almost no help from acquisitions,” said Oracle President and CFO, Safra Catz. “This strong organic growth combined with continuously improving operational efficiencies enabled us to deliver a 48% operating margin in the quarter. As our results reflect, we clearly exceeded even our own high expectations for Sun’s business.” “In addition to record setting software sales, our Exadata and Exalogic systems also made a strong contribution to our growth in Q4,” said Oracle President, Mark Hurd. “Today there are more than 1,000 Exadata machines installed worldwide. Our goal is to triple that number in FY12.” “In FY11 Oracle’s database business experienced its fastest growth in a decade,” said Oracle CEO, Larry Ellison. “Over the past few years we added features to the Oracle database for both cloud computing and in-memory databases that led to increased database sales this past year. Lately we’ve been focused on the big business opportunity presented by Big Data.” Oracle Reports Q4 GAAP EPS Up 34% To 62 Cents; Q4 NON-GAAP EPS Up 25% To 75 Cents Q4 Software New License Sales Up 19%, Q4 Total Revenue Up 13% Oracle today announced fiscal 2011 Q4 GAAP total revenues were up 13% to $10.8 billion, while non-GAAP total revenues were up 12% to $10.8 billion. Both GAAP and non-GAAP new software license revenues were up 19% to $3.7 billion. Both GAAP and non-GAAP software license updates and product support revenues were up 15% to $4.0 billion. Both GAAP and non-GAAP hardware systems products revenues were down 6% to $1.2 billion. GAAP operating income was up 32% to $4.4 billion, and GAAP operating margin was 40%. Non-GAAP operating income was up 19% to $5.2 billion, and non-GAAP operating margin was 48%. GAAP net income was up 36% to $3.2 billion, while non-GAAP net income was up 27% to $3.9 billion. GAAP earnings per share were $0.62, up 34% compared to last year while non-GAAP earnings per share were up 25% to $0.75. GAAP operating cash flow on a trailing twelve-month basis was $11.2 billion. For fiscal year 2011, GAAP total revenues were up 33% to $35.6 billion, while non-GAAP total revenues were up 33% to $35.9 billion. Both GAAP and non-GAAP new software license revenues were up 23% to $9.2 billion. GAAP software license updates and product support revenues were up 13% to $14.8 billion, while non-GAAP software license updates and product support revenues were up 13% to $14.9 billion. Both GAAP and non-GAAP hardware systems products revenues were $4.4 billion. GAAP operating income was up 33% to $12.0 billion, and GAAP operating margin was 34%. Non-GAAP operating income was up 27% to $15.9 billion, and non-GAAP operating margin was 44%. GAAP net income was up 39% to $8.5 billion, while non-GAAP net income was up 34% to $11.4 billion. GAAP earnings per share were $1.67, up 38% compared to last year while non-GAAP earnings per share were up 33% to $2.22. “In Q4, we achieved a 19% new software license growth rate with almost no help from acquisitions,” said Oracle President and CFO, Safra Catz. “This strong organic growth combined with continuously improving operational efficiencies enabled us to deliver a 48% operating margin in the quarter. As our results reflect, we clearly exceeded even our own high expectations for Sun’s business.” “In addition to record setting software sales, our Exadata and Exalogic systems also made a strong contribution to our growth in Q4,” said Oracle President, Mark Hurd. “Today there are more than 1,000 Exadata machines installed worldwide. Our goal is to triple that number in FY12.” “In FY11 Oracle’s database business experienced its fastest growth in a decade,” said Oracle CEO, Larry Ellison. “Over the past few years we added features to the Oracle database for both cloud computing and in-memory databases that led to increased database sales this past year. Lately we’ve been focused on the big business opportunity presented by Big Data.” In addition, Oracle also announced that its Board of Directors declared a quarterly cash dividend of $0.06 per share of outstanding common stock. This dividend will be paid to stockholders of record as of the close of business on July 13, 2011, with a payment date of August 3, 2011.

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  • Visualization tools for physical simulations

    - by Nick
    I'm interested in starting some physics simulations and I'm getting hung up on the visualization side of things. I have lots of resources for reading how to implement the simulation itself but I'd rather not learn two things at once - the simulation part and a new complex visualization API. Are there any high-level visualization tools that are language independent? I understand that I'll have to learn some new code for visualization but I'd like to start at a high level, OpenGL is my long-term goal and not my prototype goal.

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  • The Windows 8 and Ubuntu 12.04 Dual Boot NIghtmare

    - by Steve
    I have done some research as to how to go about this dual-boot, and I am close, but I need some guidance with booting into Windows 8 (Ubuntu is installed). I have a Lenovo Ideapad y510p. I will go over what I have done to dual-boot this laptop, with windows 8 pre-installed, with Ubuntu 12.04: I followed every instruction to the letter for the 97-vote response here, and everything worked fine up until after the repair boot section: Installing on a Pre-Installed Windows 8 System (UEFI Supported) I ran into the following error upon restarting after the repair boot section: error: invalid arch independent elf magic. This error (a grub issue) disabled me from booting into Ubuntu :( After a little googling, I followed the instructions in the reactivating grub 2 section to resolve the error: http://kb.acronis.com/content/1686 I found a possible solution to fixing the Windows 8 boot issue, and tried it: http://webcache.googleusercontent.com/search?q=cache:i9JMyXzzRpYJ:askubuntu.com/questions/279275/dual-boot-problem-windows-8-ubuntu-12-04+&cd=1&hl=en&ct=clnk&gl=us&client=ubuntu I thought the above solution worked, but when I attempt to boot into Windows 8, I get the following missing file error: File: \Boot\BCD Status: 0xc000000e Info: The Boot Configuration Data for your PC is missing or contains errors. Here is some other information that may be useful: I have 3 partitions devoted to Ubuntu. The first, sda8, has a flag bios_grub (1049 kb). The second, sda9, is where everything else is (96.6 GB). The last, sda10, is for swap (8299 MB). My question is: How do I fix the boot configuration for Windows 8? Any help would be greatly appreciated :) Update 1: When I attempt to boot into UEFI mode, I get the following error: invalid arch independent elf magic (the same error I saw in step 2). Update 2: A useful link here I found: Dual booting Ubuntu 12.04: UEFI and Legacy So, this is my 4th time installing Ubuntu on the laptop, and it looks like I need to install it in UEFI mode. Should I scrap it all again, and reinstall? Or is there ANY way of salvaging my installation? At this point, I can't even boot into Windows (although I have an installation cd to fix the windows boot issue, that would ultimately screw over ubuntu). Update 3: After doing a little more browsing around, I found a cool way around this messy grub stuff, using rEFInd. Rod Smith's post here saved me! Installing ubuntu 12.04.02 in uefi mode Now, I am able to dual-boot Windows 8 and Ubuntu and boot into both operating systems :) I have another issue (relating to the boot configuration in the bios) that I will post as a separate question :)

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  • What resources will help me understand the data model for QC 10.0 in order to write my SQL queries?

    - by srihari
    I am a fresher in Quality Center 10.0 HP software testing tool. As per my understanding in order to generate reports from QC and to troubleshoot the scenarios, we need to write SQL queries in the QC back end database. In my case it is SQL db. I downloaded the database reference help file but I could not understand from where I can start. It just gave the table name and its information. For a starter like me are there any online tutorials or helpful websites,hands on exercises,scenario's where I can better understand how to write queries for the QC data model? I am very confident about the SQL coding itself, what I want to know is how to query on the QC database tables based on the scenarios that occur in QC tool. Please suggest. Thanks, Srihari

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  • Getting a handle on mobile data

    - by Eric Jensen
    Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;} written by Ashok Joshi The proliferation of mobile devices in the corporate world is both a blessing as well as a challenge.  Mobile devices improve productivity and the velocity of business for the end users; on the other hand, IT departments need to manage the corporate data and applications that run on these devices. Oracle Database Mobile Server (DMS for short) provides a simple and effective way to deal with the management challenge.  DMS supports data synchronization between a central Oracle database server and data on mobile devices.  It also provides authentication, encryption and application and device management.  Finally, DMS is a highly scalable solution that can be used to manage hundreds of thousands of devices.   Here’s a simplified outline of how such a solution might work. Each device runs local sync and mgmt agents that handle bidirectional data flow with an Oracle enterprise backend, run remote commands, and provide status to the management console. For example, mobile admins could monitor multiple networks of mobile devices, upgrade their software remotely, and even destroy the local database on a compromised device. DMS supports either Oracle Berkeley DB or SQLite for device-local storage, and runs on a wide variety of mobile platforms. The schema for the device-local database is pretty simple – it contains the name of the application that’s installed on the device as well as details such as product name, version number, time of last access etc. Each mobile user has an account on the monitoring system.  DMS supports authentication via the Oracle database authentication mechanisms or alternately, via an external authentication server such as Oracle Identity Management. DMS also provides the option of encrypting the data on disk as well as while it is being synchronized. Whenever a device connects with DMS, it sends the list of all local application changes to the server; the server updates the central repository with this information.  Synchronization can be triggered on-demand, whenever there’s a change on the device (e.g. new application installed or an existing application removed) or via a rule-based schedule (e.g. every Saturday). Synchronization is very fast and efficient, since only the changes are propagated.  This includes resume capability; should synchronization be interrupted for any reason, the next synchronization will resume where the previous synchronization was interrupted. If the device should be lost or stolen, DMS has the capability to remove the applications and/or data from the device. This ability to control access to sensitive data and applications is critical in the corporate environment. The central repository also allows the IT manager to track the kinds of applications that mobile users use and recommend patches and upgrades, while still allowing the mobile user full control over what applications s/he downloads and uses on the device.  This is useful since most devices are used for corporate as well as personal information. In certain restricted use scenarios, the IT manager can also control whether a certain application can be installed on a mobile device.  Should an unapproved application be installed, it can easily be removed the next time the device connects with the central server. Oracle Database mobile server provides a simple, effective and highly secure and scalable solution for managing the data and applications for the mobile workforce.

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  • Announcement Oracle Solaris 11.1 Availability!

    - by uwes
    On 25th of October Oracle announced the availability of Oracle Solaris 11.1. Highlights include: 8x faster database startup and shutdown and online resizing of the database SGA with a new optimized shared memory interface between the database and Oracle Solaris 11.1 Up to 20% throughput increases for Oracle Real Application Clusters by offloading lock management into the Oracle Solaris kernel Expanded support for Software Defined Networks (SDN) with Edge Virtual Bridging enhancements to maximize network resource utilization and manage bandwidth in cloud environments 4x faster Solaris Zone updates with parallel operations shorten maintenance windows New built-in memory predictor monitors application memory use and provides optimized memory page sizes and resource location to speed overall application performance. More information could be found under the following links: Oracle Solaris 11.1 Data Sheet  What's New in Oracle Solaris 11.1 Oracle Solaris 11.1 FAQs Oracle.com Oracle Solaris page Oracle Technology Network Oracle Solaris page Resources for downloading: Download Solaris 11.1 Order Solaris 11.1 media kit Existing customers can quickly and simply update using the network based repository

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  • Latest Edition of Security Inside Out Newsletter Now Available

    - by Troy Kitch
    The latest edition of Security Inside Out newsletter is now available. If you don't get this bi-monthly security newsletter in your inbox, then subscribe to get the latest database security news. This bi-monthly edition includes: Q&A: Oracle CSO Mary Ann Davidson on Meeting Tomorrow's Security Threats Oracle Chief Security Officer Mary Ann Davidson shares her thoughts on next-generation security threats.  Read More New Study: Increased Security Spending Still Not Protecting Right Assets Despite widespread belief that database breaches represent the greatest security risk to their business, organizations continue to devote a far greater share of their security resources to network assets rather than database assets, according to a new report issued by CSO and sponsored by Oracle. Read More

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  • NHibernate 3 Webcast - Open to Public – Thursday from Pluralsight

    This week for the very first time, we're giving all newsletter subscribers FREE access to our exclusive weekly webcast! Join us Thursday for a 45 minute presentation on NHibernate 3 presented by James Kovacs. James is an independent architect, developer, trainer and jack-of-all-trades. He also happens to be the instructor for our upcoming NHibernate virtual classroom course next week. LiveMeeting Login Add to outlook calendar Thursday 20 Jan 2011 - 09:30PM IST, 11:00 AM EST , 16:00 UTC span.fullpost {display:none;}

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  • Requirements Analysis in Game Development?

    - by Joey Green
    I'm a software engineering student with a focus on game development and am wondering how big of a part does requirement analysis play a part in game development? I'm asking because there is a class being offered and I could take it. It is all about requirements analysis. Here is a description: An in-depth study of current research and practice in requirements elicitation, requirements, analysis, requirements specification,requirements verification and validation, and requirements management. Would this type of knowledge be useful for an independent game developer?

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  • Technology Fórum eloadások

    - by Lajos Sárecz
    Ma délelott lezajlott az Oracle Technology Fórum rendezvény. A Database szekcióban Tóth Csaba tartotta a nyitó eloadást, melyben az IT költségek csökkentési lehetoségeirol beszélt Oracle Database 11g felhasználásával. Ot követoen én beszéltem az Oracle Enterprise Manager által kínált extrém menedzsment képességekrol, amely ma már nem csak adatbázis menedzsmentet jelent, hanem a teljes alkalmazás infrastruktúra üzemeltetésre koncentrál, kiemelt figyelmet fordítva az üzlet valós kiszolgálására. Szünet elott még Mosolygó Feri tartott egy eloadást az adatbázis-kezelo és a felho kapcsolatáról, majd szünet után Fekete Zoltán folytatta a Database Machine bemutatásával. Zoli után ismét Mosolygó Feri tartott eloadást ezúttal az adatbázis biztonságról, majd én zártam a napot a kockázatmentes változáskezelés témával.

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  • Design review for application facing memory issues

    - by Mr Moose
    I apologise in advance for the length of this post, but I want to paint an accurate picture of the problems my app is facing and then pose some questions below; I am trying to address some self inflicted design pain that is now leading to my application crashing due to out of memory errors. An abridged description of the problem domain is as follows; The application takes in a “dataset” that consists of numerous text files containing related data An individual text file within the dataset usually contains approx 20 “headers” that contain metadata about the data it contains. It also contains a large tab delimited section containing data that is related to data in one of the other text files contained within the dataset. The number of columns per file is very variable from 2 to 256+ columns. The original application was written to allow users to load a dataset, map certain columns of each of the files which basically indicating key information on the files to show how they are related as well as identify a few expected column names. Once this is done, a validation process takes place to enforce various rules and ensure that all the relationships between the files are valid. Once that is done, the data is imported into a SQL Server database. The database design is an EAV (Entity-Attribute-Value) model used to cater for the variable columns per file. I know EAV has its detractors, but in this case, I feel it was a reasonable choice given the disparate data and variable number of columns submitted in each dataset. The memory problem Given the fact the combined size of all text files was at most about 5 megs, and in an effort to reduce the database transaction time, it was decided to read ALL the data from files into memory and then perform the following; perform all the validation whilst the data was in memory relate it using an object model Start DB transaction and write the key columns row by row, noting the Id of the written row (all tables in the database utilise identity columns), then the Id of the newly written row is applied to all related data Once all related data had been updated with the key information to which it relates, these records are written using SqlBulkCopy. Due to our EAV model, we essentially have; x columns by y rows to write, where x can by 256+ and rows are often into the tens of thousands. Once all the data is written without error (can take several minutes for large datasets), Commit the transaction. The problem now comes from the fact we are now receiving individual files containing over 30 megs of data. In a dataset, we can receive any number of files. We’ve started seen datasets of around 100 megs coming in and I expect it is only going to get bigger from here on in. With files of this size, data can’t even be read into memory without the app falling over, let alone be validated and imported. I anticipate having to modify large chunks of the code to allow validation to occur by parsing files line by line and am not exactly decided on how to handle the import and transactions. Potential improvements I’ve wondered about using GUIDs to relate the data rather than relying on identity fields. This would allow data to be related prior to writing to the database. This would certainly increase the storage required though. Especially in an EAV design. Would you think this is a reasonable thing to try, or do I simply persist with identity fields (natural keys can’t be trusted to be unique across all submitters). Use of staging tables to get data into the database and only performing the transaction to copy data from staging area to actual destination tables. Questions For systems like this that import large quantities of data, how to you go about keeping transactions small. I’ve kept them as small as possible in the current design, but they are still active for several minutes and write hundreds of thousands of records in one transaction. Is there a better solution? The tab delimited data section is read into a DataTable to be viewed in a grid. I don’t need the full functionality of a DataTable, so I suspect it is overkill. Is there anyway to turn off various features of DataTables to make them more lightweight? Are there any other obvious things you would do in this situation to minimise the memory footprint of the application described above? Thanks for your kind attention.

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  • DBaaS Online Forum - Now available on-demand

    - by Javier Puerta
    The Database-as-a-Service Online Forum  was originally broadcasted on Monday, October 21, 2013, at a US-timezones time. All the content of the forum is now available on-demand for customers and partners to watch and listen to. The content is available on demand here. Watch the on-demand forum to hear from analysts and experts on how companies are beginning to transform with Database as a Service, and learn the prescriptive steps your organization can take to design, deploy, and deliver Database as a Service today   Agenda  Keynote Carl Olofson, Research VP, IDC Juan Loaiza, Senior Vice President, Oracle Systems Technology Todd Kimbriel, Director, State of Texas, eGovernment Division Eric Zonneveld, Oracle Architect, KPN James Anthony, Technology Director, e-DBA Breakout 1: Design DBaaS Alan Levine, Senior Director, Oracle Enterprise Architects Breakout 2: Deploy DBaaS Michael Timpanaro-Perrotta, Director of Product Management, Oracle Breakout 3: Deliver DBaaS  Sudip Datta, Vice President of Product Management, Oracle Closing Session Michelle Malcher, IOUG President Juan Loaiza, Senior Vice President, Oracle Systems Technology

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  • DBaaS Online Forum - Now available on-demand

    - by Javier Puerta
    The Database-as-a-Service Online Forum  was originally broadcasted on Monday, October 21, 2013, at a US-timezones time. All the content of the forum is now available on-demand for customers and partners to watch and listen to. The content is available on demand here. Watch the on-demand forum to hear from analysts and experts on how companies are beginning to transform with Database as a Service, and learn the prescriptive steps your organization can take to design, deploy, and deliver Database as a Service today   Agenda  Keynote Carl Olofson, Research VP, IDC Juan Loaiza, Senior Vice President, Oracle Systems Technology Todd Kimbriel, Director, State of Texas, eGovernment Division Eric Zonneveld, Oracle Architect, KPN James Anthony, Technology Director, e-DBA   Breakout 1: Design DBaaS Alan Levine, Senior Director, Oracle Enterprise Architects   Breakout 2: Deploy DBaaS Michael Timpanaro-Perrotta, Director of Product Management, Oracle   Breakout 3: Deliver DBaaS  Sudip Datta, Vice President of Product Management, Oracle   Closing Session Michelle Malcher, IOUG President Juan Loaiza, Senior Vice President, Oracle Systems Technology

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  • ASP.NET 4.0 and the Entity Framework 4 - Part 2: Perform CRUD Operations Using the Entity Framework

    In this article, Vince demonstrates the usage of the Entity Framework 4 to create, read, update, and delete records in the database which was created in Part 1 of this series. After a short introduction, he discusses the various step involved in the modification of the database, creation of a web form, the selection records to load a drop down list, and the adding, updating, deletion and retrieval of records from the database with the help of relevant source code and screen shots.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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  • Extend Oracle Sales Cloud with Oracle Platform as a Service

    - by Richard Lefebvre
    Use these Oracle guided-learning courses to learn how to extend Oracle Sales Cloud with Oracle Platform as a Service (PaaS) services. While this course is focused on using Oracle PaaS infrastructure services, many of the techniques presented are applicable to customers on Software as a Service (SaaS) environments. If you are a consultant embarking on an Oracle Fusion Applications SaaS implementation project or an Independent Solution Vendors (ISVs) looking to integrate a solution with Oracle Sales Cloud, this training is for you!

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  • Rotate model using quaternion

    - by ChocoMan
    Currently I have this to rotate my 3D model that rotates on it's local axis independent from the world's axis: // Rotate model with Right Thumbstick modelRotation -= pController.ThumbSticks.Right.X * mRotSpeed; // float value What I'm trying to do is rotate the model using quaternion and not by a matrix. I've searched for tutorials, but have found none that explains thoroughly on how to achieve this. Does anyone know how to I can use quaternions to rotate my model or a complete tutorial?

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  • The worst anti-patterns you have came across.

    - by ?????????
    What are the worst anti-patterns you have came across in your career as a programmer? I'm mostly involved in java, although it is probably language-independent. I think the worst of it is what I call the main anti-pattern. It means program consisting of single, extremely big class (sometimes accompanied with a pair of little classes) which contains all logic. Typically with a big loop in which all business logic is contained, sometimes having tens of thousands of lines of code.

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