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  • Need help in using hadoop in a Spring-Hibernate-JPA based web application [closed]

    - by John Varghese
    Possible Duplicate: Need help in using hadoop framework in a Spring-Hibernate-JPA based web application We are developing a Spring-Hibernate-JPA based web application which uses MySql as the database for storage and retrieval. We need to store and compute huge amounts of data, for that we need to use hadoop framework. How hadoop framework can be used in our web application to store and compute huge amounts of data?

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  • T-SQL User-Defined Functions: the good, the bad, and the ugly (part 2)

    - by Hugo Kornelis
    In a previous blog post , I demonstrated just how much you can hurt your performance by encapsulating expressions and computations in a user-defined function (UDF). I focused on scalar functions that didn’t include any data access. In this post, I will complete the discussion on scalar UDFs by covering the effect of data access in a scalar UDF. Note that, like the previous post, this all applies to T-SQL user-defined functions only. SQL Server also supports CLR user-defined functions (written in...(read more)

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  • Refresh resources in Windows Phone 7 app

    - by Eugene
    I have a Windows Phone app that relies on an XML data file that comes packaged with the app. In the next version of my app, the XML file will be updated, how do I update the data file once per app update? I thought I could change the file name in the isolated storage, but that would leave trash behind. I could also check for exceptions when I load the XML file, but are there any other, more elegant ways?

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  • Alexa Traffic Rankings Continuously Inaccurate - Room For Improvement

    There is growing news on the internet that the Alexa Traffic Rankings are not accurate and cannot be used to boast traffic rankings for the average site owner. The main flaw that I have found with Alexa, is their main method of collecting user traffic data, which is mainly through an Alexa Toolbar that collects data from users' browsers that have the toolbars installed. This is my experiment and the results.

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  • Oracle OpenWorld 2012 - What's New

    - by Cinzia Mascanzoni
    Oracle OpenWorld 2012 is now over. Here a summary of major announcements on Hardware and Technology. Oracle Unveils Expanded Oracle Cloud Services Portfolio Oracle Unveils New Partner Cloud Programs Oracle Announces Latest Release of Oracle Exalogic Elastic Cloud Oracle Announces Oracle Exadata X3 Database In-Memory Machine Oracle Outlines Opportunity to Transform Industries from Device to Data Center with Embedded Java Oracle Announces Oracle Solaris 11.1 Latest Release of Oracle Exalytics In-Memory Machine Software Enables Customers to View and Analyze Data at the Speed of Business New Release of Oracle Business Intelligence Enables Users to Quickly Access and Analyze Key Business Information, Anytime, Anywhere

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  • How to Freeze and Unfreeze Rows and Columns in Excel 2013

    - by Lori Kaufman
    If you are working on a large spreadsheet where all the rows and columns of data don’t fit on the screen, it would be helpful to be able to keep the heading rows and columns stationary so you can scroll through the data. You can freeze rows and columns in your spreadsheet. To do so, select the cell above which and to the left of which you want to freeze the columns and rows. Click the View tab.    

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  • Building Performance Metrics into ASP.NET MVC Applications

    When you're instrumenting an ASP.NET MVC or Web API application to monitor its performance while it is running, it makes sense to use custom performance counters.There are plenty of tools available that read performance counter data, report on it and create alerts based on it. You can then plot application metrics against all sorts of server and workstation metrics.This way, there will always be the right data to guide your tuning efforts.

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  • Oracle University Nuevos cursos (Week 14)

    - by swalker
    Oracle University ha publicado recientemenete las siguentes formaciones (o versiones) nuevos: Database Oracle Data Modeling and Relational Database Design (4 days) Fusion Middleware Oracle Directory Services 11g: Administration (5 days) Oracle Unified Directory 11g: Services Deployment Essentials (2 days) Oracle GoldenGate 11g Management Pack: Overview (1 day) Business Intelligence & Datawarehousing Oracle Database 11g: Data Mining Techniques (2 days) Oracle Solaris Oracle Solaris 10 System Administration for HP-UX Administrators (5 days) E-Business Suite R12.x Oracle Time and Labor Fundamentals Póngase en contacto con el equipo local de Oracle University para conocer las fechas y otros detalles de los cursos. Manténgase conectado a Oracle University: LinkedIn OracleMix Twitter Facebook Google+

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  • SharePoint 2010 Hosting :: How to Create an External Content Type SharePoint 2010

    - by mbridge
    In this simple Article trying to show how SharePoint Designer 2010 more the External Content Type to External Database are very easy to create and can be integrated with our SharePoint Portals. You can download SharePoint Designer 2010 here: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=d88a1505-849b-4587-b854-a7054ee28d66&displaylang=en For this Example I will create a Database in SQL Server and will use SharePoint Designer 2010 to create the connections and use as a mirror from our SharePoint Portal using List and the Database. The first thing we need to do, is connect to SQL Server and create our Database call “Contacts” and add the Table “Contact” with the following fields.  When we create the External Content Type. We  will need to associate the Content Type, in this case i am using the Generic List, then we can create the Connection to the external Data Source. After create the Connection to the Database we can define what Columns we will use and what operations we will add our custom List. For this example i select all Operation they came default. This operation are very important because the Business rules are defined in each operation. After we create the diferent operations we can create the Custom List and define the how will be the Operation and add the Name for our custom List.  If you try to access the New Custom List Call “Custom Contact” you will see we will not have access to the Business Data Connectivity. To Resolve this issue we will need to give Access and permissions to users to the Custom External Content Type BDC connection in the Central administration.  Access to Central Administration Page and select the option “Service Application Tab> Manage Service Application”. There you select the Service “Business Data Connectivity Service” then select “Manage”.  This Option will list all External Content Type, choose the External Content Type we create and select the option “Set Object Permission”, this option will allow to add users to the BDC and manage the permissions to the Custom List.  After the correct permissions are given we can Access to Data on our custom Contact List and start creating new Item and all the other options and operation we define to the same List.  Hope you like this litle Article about connect Database Content to SharePoint Portal using the Externa Content Types and BCS.Thank you.

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  • Drawing multiple objects from one Vertex Buffer Object in OpenGL/OpenTK

    - by stoney78us
    I am trying to experimenting drawing method using VBO in OpenGL. Many people normally use 1 vbo to store one object data array. I was trying to do something quite opposite which is storing multiple object data into 1 vbo then drawing it. There is story behind why i want to do this. I want to group many of objects as a single object sometime. However my code doesn't do the justice. Following is my pseudo code: //Data double[] vertices = {line strip 1, line strip 2, line strip 3}; //series of vertices int linestrip1offset = index of the first vertex in line strip 1; int linestrip2offset = index of the first vertex in line strip 2; int linestrip3offset = index of the first vertex in line strip 3; int linestrip1VertexNum = number of vertices in linestrip 1; int linestrip2VertexNum = number of vertices in linestrip 2; int linestrip3VertexNum = number of vertices in linestrip 3; //Setting Up void init() { int[] vBO = new int[1]; GL.GenBuffer(1, vBO); GL.BindBuffer(BufferTarget.ArrayBuffer, vBO[0]); GL.BufferData(BufferTarget.ArrayBuffer, new IntPtr(_vertices.Length * sizeof(double)), _vertices, BufferUsageHint.StaticDraw); GL.EnableClientState(Array.VertexArray); } //Drawing void draw() { GL.BindBuffer(BufferTarget.ArrayBuffer, vBO[0]); GL.EnableClientState(ArrayCap.VertexArray); GL.VertexPointer(3, VertexPointerType.Double, 0, linestrip1offset); //drawing first linestrip GL.DrawArrays(drawMode, linestrip1offset , linestrip1VertexNum ); GL.VertexPointer(3, VertexPointerType.Double, 0, linestrip2offset); //drawing second linestrip GL.DrawArrays(drawMode, linestrip2offset , linestrip2VertexNum ); GL.VertexPointer(3, VertexPointerType.Double, 0, linestrip3offset); //drawing third linestrip GL.DrawArrays(drawMode, linestrip3offset , linestrip3VertexNum ); GL.DisableClientState(ArrayCap.VertexArray); GL.BindBuffer(BufferTarget.ArrayBuffer, 0); } I don't know what i did wrong but i think technically it should work where we can tell OpenGL which part of the data in the vBO to be drawn.

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  • I cancelled gparted operation ,what to do next?

    - by abcd
    I cancelled gparted operation by mistake .Now one of the partition became corrupted ,what to next? Should I format it? Data is important to me ;( Edit1: I tried to recover partition using testdisk and successfully recoverd losted partition ,but another partition(an extended partition containing ubuntus ) gone ,How to recover it? :) Edit2: testdisk saved my life ,it recovered all my partition without losing data ,

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  • What is the proper name for this design pattern in Python?

    - by James
    In Python, is the proper name for the PersonXXX class below PersonProxy, PersonInterface, etc? import rest class PersonXXX(object): def __init__(self,db_url): self.resource = rest.Resource(db_url) def create(self,person): self.resource.post(person.data()) def get(self): pass def update(self): pass def delete(self): pass class Person(object): def __init__(self,name, age): self.name = name self.age = age def data(self): return dict(name=self.name,age=self.age)

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  • Projected Results

    - by Sylvie MacKenzie, PMP
    Excerpt from PROFIT - ORACLE - by Monica Mehta Yasser Mahmud has seen a revolution in project management over the past decade. During that time, the former Primavera product strategist (who joined Oracle when his company was acquired in 2008) has not only observed a transformation in the way IT systems support corporate projects but the role project portfolio management (PPM) plays in the enterprise. “15 years ago project management was the domain of project management office (PMO),” Mahmud recalls of earlier days. “But over the course of the past decade, we've seen it transform into a mission critical enterprise discipline, that has made Primavera indispensable in the board room. Now, as a senior manager, a board member, or a C-level executive you have direct and complete visibility into what’s kind of going on in the organization—at a level of detail that you're going to consume that information.” Now serving as Oracle’s vice president of product strategy and industry marketing, Mahmud shares his thoughts on how Oracle’s Primavera solutions have evolved and how best-in-class project portfolio management systems can help businesses stay competitive. Profit: What do you feel are the market dynamics that are changing project management today? Mahmud: First, the data explosion. We're generating data at twice the rate at which we can actually store it. The same concept applies for project-intensive organizations. A lot of data is gathered, but what are we really doing with it? Are we turning data into insight? Are we using that insight and turning it into foresight with analytics tools? This is a key driver that will separate the very good companies—the very competitive companies—from those that are not as competitive. Another trend is centered on the explosion of mobile computing. By the year 2013, an estimated 35 percent of the world’s workforce is going to be mobile. That’s one billion people. So the question is not if you're going to go mobile, it’s how fast you are going to go mobile. What kind of impact does that have on how the workforce participates in projects? What worked ten to fifteen years ago is not going to work today. It requires a real rethink around the interfaces and how data is actually presented. Profit: What is the role of project management in this new landscape? Mahmud: We recently conducted a PPM study with the Economist Intelligence Unit centered to determine how important project management is considered within organizations. Our target was primarily CFOs, CIOs, and senior managers and we discovered that while 95 percent of participants believed it critical to their business, only six percent were confident that projects were delivered on time and on budget. That’s a huge gap. Most organizations are looking for efficiency, especially in these volatile financial times. But senior management can’t keep track of every project in a large organization. As a result, executives are attempting to inventory the work being conducted under their watch. What is often needed is a very high-level assessment conducted at the board level to say, “Here are the 50 initiatives that we have underway. How do they line up with our strategic drivers?” This line of questioning can provide early warning that work and strategy are out of alignment; finding the gap between what the business needs to do and the actual performance scorecard. That’s low-hanging fruit for any executive looking to increase efficiency and save money. But it can only be obtained through proper assessment of existing projects—and you need a project system of record to get that done. Over the next decade or so, project management is going to transform into holistic work management. Business leaders will want make sure key projects align with corporate strategy, but also the ability to drill down into daily activity and smaller projects to make sure they line up as well. Keeping employees from working on tasks—even for a few hours—that don’t line up with corporate goals will, in many ways, become a competitive differentiator. Profit: How do all of these market challenges and shifting trends impact Oracle’s Primavera solutions and meeting customers’ needs? Mahmud: For Primavera, it’s a transformation from being a project management application to a PPM system in the enterprise. Also making that system a mission-critical application by connecting to other key applications within the ecosystem, such as the enterprise resource planning (ERP), supply chain, and CRM systems. Analytics have also become a huge component. Business analytics have made Oracle’s Primavera applications pertinent in the boardroom. Now, as a senior manager, a board member, a CXO, CIO, or CEO, you have direct visibility into what’s going on in the organization at a level that you're able to consume that information. In addition, all of this information pairs up really well with your financials and other data. Certainly, when you're an Oracle shop, you have that visibility that you didn’t have before from a project execution perspective. Profit: What new strategies and tools are being implemented to create a more efficient workplace for users? Mahmud: We believe very strongly that just because you call something an enterprise project portfolio management system doesn’t make it so—you have to get people to want to participate in the system. This can’t be mandated down from the top. It simply doesn’t work that way. A truly adoptable solution is one that makes it super easy for all types users to participate, by providing them interfaces where they live. Keeping that in mind, a major area of development has been alternative user interfaces. This is increasingly resulting in the creation of lighter weight, targeted interfaces such as iOS applications, and smartphones interfaces such as for iPhone and Android platform. Profit: How does this translate into the development of Oracle’s Primavera solutions? Mahmud: Let me give you a few examples. We recently announced the launch of our Primavera P6 Team Member application, which is a native iOS application for the iPhone. This interface makes it easier for team members to do their jobs quickly and effectively. Similarly, we introduced the Primavera analytics application, which can be consumed via mobile devices, and when married with Oracle Spatial capabilities, users can get a geographical view of what’s going on and which projects are occurring in various locations around the world. Lastly, we introduced advanced email integration that allows project team members to status work via E-mail. This functionality leverages the fact that users are in E-mail system throughout the day and allows them to status their work without the need to launch the Primavera application. It comes back to a mantra: provide as many alternative user interfaces as possible, so you can give people the ability to work, to participate, to raise issues, to create projects, in the places where they live. Do it in such a way that it’s non-intrusive, do it in such a way that it’s easy and intuitive and they can get it done in a short amount of time. If you do that, workers can get back to doing what they're actually getting paid for.

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  • T-SQL User-Defined Functions: the good, the bad, and the ugly (part 2)

    - by Hugo Kornelis
    In a previous blog post , I demonstrated just how much you can hurt your performance by encapsulating expressions and computations in a user-defined function (UDF). I focused on scalar functions that didn’t include any data access. In this post, I will complete the discussion on scalar UDFs by covering the effect of data access in a scalar UDF. Note that, like the previous post, this all applies to T-SQL user-defined functions only. SQL Server also supports CLR user-defined functions (written in...(read more)

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  • Best sources to find your go-to programmer

    - by user66851
    After exhausting many resources, time, interviews etc, I cannot seem to find the correct programming talent for our company. Any other resources you suggest besides Dice, Linkedin, Craigslist, University Job Boards, Poaching techniques....its been months now! Specifically, we designed proprietary data-manipulation and data-gathering technology, and are looking for skilled programmers requiring skills of PHP5/MySQL, Javascript/HTML/CSS , cross-browser compatibility/optimization, web interface development, familiarity with source control (SVN or GIT), any L/AMP stack, and/or related application protocols, GCC-supported languages, Zend Framework and/or jQuery.

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  • Commnunity Technology Update (CTU) 2011

    - by Aman Garg
    Spoke at the session on Webforms in CTU 2011 (Community Technology Update) in Singapore. Had a good interaction with the Developer community here in Singapore. I covered the following topics during the session:   *Dynamic Data *Routing *Web Form Additions         *Predictable Client IDs          *Programmable Meta Data           *Better control over ViewState           *Persist selected rows *Web Deployment   The Slide Deck used can be accessed using the following URL: http://www.slideshare.net/amangarg516/web-forms-im-still-alive

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  • SilverlightShow for Jan 7-13, 2011

    - by Dave Campbell
    Check out the Top Five most popular news at SilverlightShow for Feb 7-13, 2011. Here's SilverlightShow top 5 news for last week: Data Binding in Silverlight with RIA and EntityFramework - Part 1 (Displaying Data) Simple Silverlight MVVM Base Class This Thursday: Free Windows Phone 7 Webinar by Telerik A Circular ProgressBar Style using an Attached ViewModel Using SilverLight 4 Line Of Business Application Development Template (LOB) Visit and bookmark SilverlightShow. Stay in the 'Light

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  • Google I/O 2012 - Introducing Google Compute Engine

    Google I/O 2012 - Introducing Google Compute Engine Craig McLuckie, Martin Gannholm Google Compute Engine is a new virtual machine based cloud technology for large scale data processing and analytics workloads. It allows the world to leverage the scalability and power of Google's data centers to run computationally intensive jobs. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 1614 29 ratings Time: 01:00:58 More in Science & Technology

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  • Solving “The Select operation is not supported by .. unless the SelectMethod is specified.”

    - by anas
    In most cases, You will get that error when you are using a data source control(like ObjectDataSource) without setting it’s SelectMethod as data source for the DetailsView control. If you want to display one record in the detailsView control to allow the user to edit it, then you should set the SelectMethod for the DataSource control,otherwise the detailsView control will not be able to get the record from the underlying datasource. But what if you are only using the DetailsView for only inserting...(read more)

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  • Pay in the future should make you think in the present

    - by BuckWoody
    Distributed Computing - and more importantly “-as-a-Service” models of computing have a different cost model. This is something that sounds obvious on the surface but it’s often forgotten during the design and coding phase of a project. In on-premises computing, we’re used to purchasing a server and all of the hardware infrastructure and software licenses needed not only for one project, but several. This is an up-front or “sunk” cost that we consume by running code the organization needs to perform its function. Using a direct connection over wires you’ve already paid for, we don’t often have to think about bandwidth, hits on the data store or the amount of compute we use - we just know more is better. In a pay-as-you-go model, however, each of these architecture decisions has a potential cost impact. The amount of data you store, the number of times you access it, and the amount you send back all come with a charge. The offset is that you don’t buy anything at all up-front, so that sunk cost is freed up. And financial professionals know that money now is worth more than money later. Saving that up-front cost allows you to invest it in other things. It’s not just that you’re using things that now cost money - it’s that the design itself in distributed computing has a cost impact. That can be a really good thing, such as when you dynamically add capacity for paying customers. If you can tie back the cost of a series of clicks to what a user will pay to do so, you can set a profit margin that is easy to track. Here’s a case in point: Assume you are using a large instance in Windows Azure to compute some data that you retrieve from a SQL Azure database. If you don’t monitor the path of the application, you may not know what you are really using. Since you’re paying by the size of the instance, it’s best to maximize it all the time. Recently I evaluated just this situation, and found that downsizing the instance and adding another one where needed, adding a caching function to the application, moving part of the data into Windows Azure tables not only increased the speed of the application, but reduced the cost and more closely tied the cost to the profit. The key is this: from the very outset - the design - make sure you include metrics to measure for the cost/performance (sometimes these are the same) for your application. Windows Azure opens up awesome new ways of doing things, so make sure you study distributed systems architecture before you try and force in the application design you have on premises into your new application structure.

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  • Is there a canonical resource on multi-tenancy web applications using ruby + rails

    - by AlexC
    Is there a canonical resource on multi-tenancy web applications using ruby + rails. There are a number of ways to develop rails apps using cloud capabilities with real elastic properties but there seems to be a lack of clarity with how to achieve multitenancy, specifically at the model / data level. Is there a canonical resource on options to developing multitenancy rails applications with the required characteristics of data seperation, security, concurrency and contention required by an enterprise level cloud application.

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  • Upgrading 10.04LTS -> 10.10 using custom sources

    - by Boatzart
    I'm trying to upgrade to 10.10 from 10.04 LTS using a custom sources.list file that points to an unofficial mirror*. The mirror does have maverick, but I get the following output when upgrading: boatzart@somecomputer: > sudo do-release-upgrade Checking for a new ubuntu release Done Upgrade tool signature Done Upgrade tool Done downloading extracting 'maverick.tar.gz' authenticate 'maverick.tar.gz' against 'maverick.tar.gz.gpg' tar: Removing leading `/' from member names Reading cache Checking package manager Reading package lists... Done Building dependency tree Reading state information... Done Building data structures... Done Reading package lists... Done Building dependency tree Reading state information... Done Building data structures... Done Updating repository information WARNING: Failed to read mirror file No valid mirror found While scanning your repository information no mirror entry for the upgrade was found. This can happen if you run a internal mirror or if the mirror information is out of date. Do you want to rewrite your 'sources.list' file anyway? If you choose 'Yes' here it will update all 'lucid' to 'maverick' entries. If you select 'No' the upgrade will cancel. Continue [yN] y WARNING: Failed to read mirror file 96% [Working] Checking package manager Reading package lists... Done Building dependency tree Reading state information... Done Building data structures... Done Calculating the changes Calculating the changes Could not calculate the upgrade An unresolvable problem occurred while calculating the upgrade: The package 'update-manager-kde' is marked for removal but it is in the removal blacklist. This can be caused by: * Upgrading to a pre-release version of Ubuntu * Running the current pre-release version of Ubuntu * Unofficial software packages not provided by Ubuntu If none of this applies, then please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bug report. Restoring original system state Aborting Reading package lists... Done Building dependency tree Reading state information... Done Building data structures... Done Here is the relevant section from /var/log/dist-upgrade/main.log: 2010-11-18 14:05:52,117 DEBUG The package 'update-manager-kde' is marked for removal but it's in the removal blacklist 2010-11-18 14:05:52,136 ERROR Dist-upgrade failed: 'The package 'update-manager-kde' is marked for removal but it is in the removal blacklist.' 2010-11-18 14:05:52,136 DEBUG abort called *I'm located inside of USC, and for some crazy reason any sustained downloads to anywhere outside of the University are throttled down to 5kbps inside of my lab. Because of this I need to use the following sources.list: deb http://mirrors.usc.edu/pub/linux/distributions/ubuntu/ lucid main restricted universe multiverse deb http://mirrors.usc.edu/pub/linux/distributions/ubuntu/ lucid-updates main restricted universe multiverse deb http://mirrors.usc.edu/pub/linux/distributions/ubuntu/ lucid-backports main restricted universe multiverse deb http://mirrors.usc.edu/pub/linux/distributions/ubuntu/ lucid-security main restricted universe multiverse I've tried adding four more entries to the sources.list with s/lucid/maverick/ but that didn't help. Does anyone know how to fix this? Thanks!

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  • Oracle University New Courses (Week 14)

    - by swalker
    Oracle University released the following new (versions of) courses recently: Database Oracle Data Modeling and Relational Database Design (4 days) Fusion Middleware Oracle Directory Services 11g: Administration (5 days) Oracle Unified Directory 11g: Services Deployment Essentials (2 days) Oracle GoldenGate 11g Management Pack: Overview (1 day) Business Intelligence & Datawarehousing Oracle Database 11g: Data Mining Techniques (2 days) Oracle Solaris Oracle Solaris 10 System Administration for HP-UX Administrators (5 days) E-Business Suite R12.x Oracle Time and Labor Fundamentals Get in contact with your local Oracle University team for more details and course dates. Stay Connected to Oracle University: LinkedIn OracleMix Twitter Facebook Google+

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  • Oracle Magazine, July/August 2009

    Oracle Magazine July/August features articles on business efficiency with Oracle data warehousing, business intelligence and enterprise performance management; Oracle Enterprise Linux and Oracle Unbreakable Linux support, Oracle OpenWorld preview, open source, Oracle Application Development Framework, best PL/SQL practices, security for Oracle Application Express applications, Microsoft Visual Studio for .NET and Oracle Database, Oracle Data Pump, Tom Kyte answering your questions and much more.

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