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Articles indexed Thursday September 6 2012

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  • Using DB_PARAMS to Tune the EP_LOAD_SALES Performance

    - by user702295
    The DB_PARAMS table can be used to tune the EP_LOAD_SALES performance.  The AWR report supplied shows 16 CPUs so I imaging that you can run with 8 or more parallel threads.  This can be done by setting the following DB_PARAMS parameters.  Note that most of parameter changes are just changing a 2 or 4 into an 8: DBHintEp_Load_SalesUseParallel = TRUE DBHintEp_Load_SalesUseParallelDML = TRUE DBHintEp_Load_SalesInsertErr = + parallel(@T_SRC_SALES@ 8) full(@T_SRC_SALES@) DBHintEp_Load_SalesInsertLd  = + parallel(@T_SRC_SALES@ 8) DBHintEp_Load_SalesMergeSALES_DATA = + parallel(@T_SRC_SALES_LD@ 8) full(@T_SRC_SALES_LD@) DBHintMdp_AddUpdateIs_Fictive0SD = + parallel(s 8 ) DBHintMdp_AddUpdateIs_Fictive2SD = + parallel(s 8 )

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  • WebCenter Customer Spotlight: Guizhou Power Grid Company

    - by me
    Author: Peter Reiser - Social Business Evangelist, Oracle WebCenter  Solution SummaryGuizhou Power Grid Company is responsible for power grid planning, construction, management, and power distribution in Guizhou Province, serving 39 million people. Giuzhou has 49,823 employees and an annual revenue of over $5 Billion. The business objectives were to consolidate information contained in disparate systems into a single knowledge repository and provide a safe and efficient way for staff and managers to access, query, share, manage, and store business information. Guizhou Power Grid Company saved more than US$693,000 in storage costs, reduced  average search times from 180 seconds to 5 seconds and solved 80% to 90% of technology and maintenance issues by searching the Oracle WebCenter Content management system. Company OverviewA wholly owned subsidiary of China Southern Power Grid Company Limited, Guizhou Power Grid Company is responsible for power grid planning, construction, management, and power distribution in Guizhou Province, serving 39 million people. Giuzhou has 49,823 employees and an annual revenue of over $5 Billion. Business ChallengesThe business objectives were to consolidate information contained in disparate systems, such as the customer relationship management and power grid management systems, into a single knowledge repository and provide a safe and efficient way for staff and managers to access, query, share, manage, and store business information. Solution DeployedGuizhou Power Grid Company  implemented Oracle WebCenter Content to build a content management system that enabled the secure, integrated management and storage of information, such as documents, records, images, Web content, and digital assets. The content management solution was integrated with the power grid, customer service, maintenance, and other business systems, as well as the corporate Web site. Business Results Saved more than US$693,000 in storage costs and shortened the material distribution time by integrating the knowledge management solution with the power grid, customer service, maintenance, and other business systems, as well as the corporate Web site Enabled staff to search 31,650 documents using catalogs, multidimensional attributes, and knowledge maps, reducing average search times from 180 seconds to 5 seconds and saving approximately 1,539 hours in annual search time Gained comprehensive document management, format transformation, security, and auditing capabilities Enabled users to upload new documents and supervisors to check the accuracy of these documents online, resulting in improved information quality control Solved 80% to 90% of technology and maintenance issues by searching the Oracle content management system for information, ensuring IT staff can respond quickly to users’ technical problems Improved security by using role-based access controls to restrict access to confidential documents and information Supported the efficient classification of corporate knowledge by using Oracle’s metadata functions to collect, tag, and archive documents, images, Web content, and digital assets “We chose Oracle WebCenter Content, as it is an outstanding integrated content management platform. It has allowed us to establish a system to access, query, share, manage, and store our corporate assets. This has laid a solid foundation for Guizhou Power Grid Company to improve management practices.” Luo Sixi, Senior Information Consultant, Guizhou Power Grid Company Additional Information Guizhou Power Grid Company Customer Snapshot Oracle WebCenter Content

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  • Only One Month to OpenWorld-San Francisco!

    - by Stephen Slade
    From around the world, the city is expecting 50,000+ guests to flock to this annual extravaganza.  Over 2,000 sessions will focus on Oracle’s latest product offerings, customer case studies, panels of experts and a variety of other hardware, technology, middleware and applications. For those interested  in the latest capabilities delivered by Oracle’s supply chain applications, the ‘Focus-On’ documents are now avaiable to help guide you in your schedule builder. Schedule builder allows the capability to create a personalized agenda for the sessions you wish to attend, such as: Monday October 1, 2012 TIME TITLE LOCATION  3:15 pm –4:15 pm General Session: Supply Chain Management—Strategy, Update, and Roadmap Richard Jewell, Senior Vice President, Applications Development, Oracle Moscone West Level 2 Room 3014 Tuesday October 2, 2012 TIME TITLE LOCATION  10:15 am –11:15 am Oracle Fusion Supply Chain Management: Overview, Strategy, Customer Experiences, and Roadmap Jon Chorley, CSO & VP, Product Strategy, Oracle Moscone West  Level 2 Room 2006 There is an exciting lineup of about 100 supply chain sessions at OpenWorld. Contact your sales rep or Oracle Partner to obtain a copy of the most current Focus-On document, segmented by pillars such as Manufacturing, Maintenance/EAM, Value Chain Planning, Value Chain Execution, Procurement and Agile/Product Lifecycle Management.  They will provide you with a better informed view to schedule your time in San Francisco.

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  • Oracle SCM at APICS Denver Oct 14-16

    - by Stephen Slade
    Join us in Denver, October 14–16, 2012, for the 2012 APICS International Conference & Expo. One of the world's largest gatherings of supply chain and operations management professionals, APICS provides an annual interactive learning environment for operations and supply chain professionals to lead and apply best practices. For those of you considering attending APICS  next month, be sure to keep Oracle Supply Chain applications on your radar. Oracle will again have a prominent position at the annual global conference. Our product booth with have supply chain demonstrations for manufacturing, value chain planning, value chain execution and Agile product lifecycle management offerings. Stop by our booth to register for one of numerous prizes and awards and chat with one of our supply chain product experts. Oracle customers will be presenting at various sessions throughout the event.  One of the great stories to be shared is the SUN supply chain transformation. For those interested in moving costs down to the bottom line, this is the session you should attend. http://www.apics.org/sites/conference/2012/home

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  • Webcast: SANS Institute Product Review of Oracle Identity Manager 11gR2

    - by B Shashikumar
    Translating the IT-centric, directory based view of access and authorization into the process-driven concerns of business users inevitably creates unique challenges. Enterprises struggle to determine which users have access to what resources and what they are doing with that access. Enforcing governance controls is critical to reduce the risk that an employee or malicious third party with excessive access will take advantage of that access. Dave Shackleford, SANS analyst, recently reviewed the User Provisioning capabilities of Oracle Identity Manager 11gR2. In this webcast, attendees will hear from Dave and other Oracle and customer experts on: The key challenges associated with implementing self-service user provisioning Oracle’s unique online “shopping cart” model for self-service access request Real world case study of user provisioning Best practices for deployment Register today, for this complimentary webcast, hosted by The SANS Institute. Attendees will be among the first to receive a new SANS Analyst Whitepaper on this subject. When: Thur Sep 27  9am PT/12p ET Where: Register here

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  • Sep 10 Week - I'll be on the West Coast Speaking in Irvine and San Fran

    - by RickHeiges
    In my role as a Solutions Architect for Scalability Experts, I often get to present to customers about the work that we performed. Unfortunately, this is often on short notice and I can't coordinate a trip to participate in a User Group Meeting. Next week, I was able to coordinate my west coast trip to be able to present. I am heading to Irvine at the MTC on Sepember 11 and San Francisco at the MSFT offices on Sep 13 to speak to customers who want to learn more about SQL Server 2012.To register for...(read more)

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  • SqlLocalDb vs. Cumulative Updates

    - by AaronBertrand
    Last week I announced that SQL Server 2012 Cumulative Update #3 was released. A question came up about SqlLocalDb and I will try to address the current state of patching SqlLocalDb. Please keep in mind that these comments are only relevant to cumulative updates - I do not know whether this is all true for service packs. When SqlLocalDb was first released, there were a few ways to get it: - Visual Studio 2012 betas - SQL Server 2012 Express - From the standalone feature pack installer Now, at that...(read more)

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  • Content Weighting and Sociology

    - by Chris Massey
    I’ve had loads of fantastic feedback on the concept and early curation wireframes I posted on the labs, and it’s led to some further thoughts on the topic of voting. More specifically, thoughts about the kinds of behaviour and values a platform encourages in it’s users via the set of available actions. StackOverflow is a very good example of this kind of sociology in action, not only via the set of available actions, but through the reputation system it uses to both reward and control it’s users. In our case (specifically, in the case of the curation model I’ve been talking about thus far), the main considerations are how the quality of content is judged, and how to make sure each piece of curated content gets a fair hearing. Based on the feedback and conversations I’ve had with many of you over the last few days, a few considerations came to light about how we might need to weight and display our curations, and I’ve written about that more extensively over on the labs themselves – have a read and let me know what you think.

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  • Teaching OO to VBA developers [closed]

    - by Eugene
    I work with several developers that come from less object oriented background like (VB6, VBA) and are mostly self-taught. As part of moving away from those technologies we recently we started having weekly workshops to go over the features of C#.NET and OO practices and design principles. After a couple of weeks of basic introduction I noticed that they had a lot of problems implementing even basic code. For instance it took probably 15 minutes to implement a Stack.push() and a full hour to implement a simple Stack fully. These developers were trying to do things like passing top index as a parameter to the method, not creating an private array, using variables out of scope. But most of all not going through the "design (dia/mono)log" (I need something to do X, so maybe I'll make an array, or put it here). I am a little confused because they are smart people and are able to produce functional code in their traditional environments. I'm curious if anybody else has encountered a similar thing and if there are any particular resources, exercises, books, ideas that would be helpful in this circumstance.

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  • How long can a user remember what they were working on? [migrated]

    - by GlenPeterson
    A web application lets the user browse its screens for future or past months. The time period the user is currently viewing follows the user through every screen of the system. But users can be logged in for a month or more. After a certain period of inactivity, we will prompt the user: You were viewing November 2008 when you last clicked. Want to view the current (default) time period instead? How long between user clicks should we wait to show this message? I'm guessing somewhere between 30 minutes and 3 hours most people will forget what they were doing, but I'd love to have some data, or someone's experience to base it on. Other suggestions related to this issue?

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  • Overloading interface buttons, what are the best practices?

    - by XMLforDummies
    Imagine you'll have always a button labeled "Continue" in the same position in your app's GUI. Would you rather make a single button instance that takes different actions depending on the current state? private State currentState = State.Step1; private ContinueButton_Click() { switch(currentState) { case State.Step1: DoThis(); currentState = State.Step2; break; case State.Step2: DoThat(); break; } } Or would you rather have something like this? public Form() { this.ContinueStep2Button.Visible = false; } private ContinueStep1Button_Click() { DoThis(); this.ContinueStep1Button.Visible = false; this.ContinueStep2Button.Visible = true; } private ContinueStep2Button_Click() { DoThat(); }

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  • MVC, when to separate controllers?

    - by Rodolfo
    I'm starting with MVC and have a newbie question. What would be the logic criteria to define what a controller should encompass? For example, say a website has a 'help' section. In there, there are several options like: 'about us', 'return instructions', 'contact us', 'employment opportunities'. Each would then be accessed like 'mysite.com/help/aboutus', 'mysite.com/help/returns', 'mysite.com/help/contactus', etc. My question is, should I have a 'help' controller that has 'about us', 'returns', 'contact us', 'employment' as actions with their respective view, or should each of those be a different controller-action-view set? What should be the line of reasoning to determine when to separate controllers?

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  • going from closed-source to open-source [closed]

    - by mspoerr
    I am thinking of releasing the source code of my application (Freeware at the moment). It is written in C++ with VisualStudio 2008 and all used 3rd-party libs are free or open-source and platform independent. The idea to release the source-code is very old, but till now I did not want to show the code because I am not sure if it is nice/well designed (I am not a professional developer), but the application is growing and help would be very welcome, but I want to keep control... What do I need to consider? Is there any best practice for this scenario? The code itself is one thing, but there is much more like license, documentation, project settings, 3rd party libs, platform (Sourceforge, other?)

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  • Are there studies on what programming languages does to the brain? [closed]

    - by Eduard Florinescu
    Are there studies on what effects have programming languages on the brain or for that matter any other artificial languages in general, like mathematics ? Speaking from my personal experience I feel very different every time I speak Italian, I feel like a virtuoso on a quest but at the other end when I coded in machine code in debug.exe I felt like the main charcter inp(Movie). Why do I bring this up because I am suspecting that languages affect your mind and popular legends back this up too often: are full of mathematicians that crossed the Rubicon.

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  • How do PGP and PEM differ?

    - by Dummy Derp
    Email messages are sent in plain text which means that the messages I send to Derpina are visible to anyone who somehow gets access to them while they are in transit. To overcome this, various encryption mechanisms were developed. PEM and PGP are two of them. PEM - canonically converts-adds digital signature-encrypts and sends PGP does exactly the same. So where do they differ? Or is it that PGP (being a program) is used to generate a PEM message?

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  • Code Design question, circular reference across classes?

    - by dsollen
    I have no code here, as this is more of a design question (I assume this is still the best place to ask it). I have a very simple server in java which stores a mapping between certain values and UUID which are to be used by many systems across multiple platforms. It accepts a connection from a client and creates a clientSocket which stores the socket and all the other relevant data unique to that connection. Each clientSocket will run in their own thread and will block on the socket waiting for a read. I expect very little strain on this system, it will rarely get called, but when it does get a call it will need to respond quickly and due to the risk of it having a peak time with multiple calls coming in at once threaded is still better. Each thread has a reference to a Mapper class which stores the mapping of UUID which it's reporting to others (with proper synchronization of course). This all works until I have to add a new UUID to the list. When this happens I want to report to all clients that care about that particular UUID that a new one was added. I can't multicast (limitation of the system I'm running on) so I'm having each socket send the message to the client through the established socket. However, since each thread only knows about the socket it's waiting on I didn't have a clear method of looking up every thread/socket that cares about the data to inform them of the new UUID. Polling is out mostly because it seems a little too convoluted to try to maintain a list of newly added UUID. My solution as of now is to have the 'parent' class which creates the mapper class and spawns all the threads pass itself as an argument to the mapper. Then when the mapper creates a new UUID it can make a call to the parent class telling it to send out updates to all the other sockets that care about the change. I'm concerned that this may be a bad design due to the use of a circular reference; parent has a reference to mapper (to pass it to new ClientSocket threads) and mapper points to parent. It doesn't really feel like a bad design to me but I wanted to check since circular references are suppose to be bad. Note: I realize this means that the thread associated with whatever socket originally received the request that spawned the creation of a UUID is going to pay the 'cost' of outputting to all the other clients that care about the new UUID. I don't care about this; as I said I suspect the client to receive only intermittent messages. It's unlikely for one socket to receive multiple messages at one time, and there won't be that many sockets so it shouldn't take too long to send messages to each of them. Perhaps later I'll fix the fact that I'm saddling higher work load on whatever unfortunate thread gets the first request; but for now I think it's fine.

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  • How to correctly write an installation or setup document

    - by UmNyobe
    I just joined a small start-up as a software engineer after graduation. The start-up is 4 year old, and I am working with the CEO and the COO, even if there are some people abroad. Basically they both used to do almost everything. I am currently on some kind of training phase. I have at my disposition architecture, setup and installation internal documentation. Architecture documentation is like a bible and should contain complete information. The rest are used to give directions in different processes. The issue is that these documents are more or less dated, as they just didn't have the time to change them. I will be in charge of training the next hires, and updating these documents is part of my training. In some there is a lot of hard-coded information like: Install this_module_which_still_exists cd this_dir_name_changed cp this_file_name_changed other_dir_name_changed ./config_script.sh ./execute_script.sh The issues i have faced : Either the module installation is completely different (for instance now there is an rpm, or a different OS) Either names changed, and i need to switch old names by new names Description of the purpose of the current step missing. Information about a whole topic is missing Fortunately these guys are around and I get all the information I want and all the explanations I need. I want to bring a design to the next documents so in the future people don't feel like they are completely rewriting a document each time they are updating it. Do you have suggestions? If there is a lightweight design methodology available online you can point me to it's nice too. One thing I will do for sure is set up a versioning repository for the documents alone. There is already one for the source code so I don't know why internal documents deserve a different treatment.

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  • What technologies are used for Game development now days?

    - by Monika Michael
    Whenever I ask a question about game development in an online forum I always get suggestions like learning line drawing algorithms, bit level image manipulation and video decompression etc. However looking at games like God of War 3, I find it hard to believe that these games could be developed using such low level techniques. The sheer awesomeness of such games defy any comprehensible(for me) programming methodology. Besides the gaming hardware is really a monster now days. So it stands to reason that the developers would work at a higher level of abstraction. What is the latest development methodology in the gaming industry? How is it that a team of 30-35 developers (of which most is management and marketing fluff) able to make such mind boggling games? If the question seems too general could you explain the architecture of God of War 3? Or how you would go about producing a clone? That I think should be objectively answerable.

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  • How relevant is UTF-7 when it comes to parsing emails?

    - by J. Pablo Fernández
    I recently implemented incoming emails for an application and boy, did I open the gates of hell? Since then every other day an email arrives that makes the app fail in a different way. One of those things is emails encoded as UTF-7. Most emails come as ASCII, some of the Latin encodings, or thankfully, UTF-8. Hotmail error messages (like email address doesn't exist or quota exceeded) seem to come as UTF-7. Unfortunately, UTF-7 is not an encoding Ruby understands: > "hello world".encode("utf-8", "utf-7") Encoding::ConverterNotFoundError: code converter not found (UTF-7 to UTF-8) > Encoding::UTF_7 => #<Encoding:UTF-7 (dummy)> My application doesn't crash, it actually handles the email quite well, but it does send me a notification about the potential error. I spent some time googling and I can't find anyone that implemented the conversion, at least not as a Ruby 1.9.3 Encoding::Converter. So, my question is, since I never got an email with actual content, from an actual person, in UTF-7, how relevant is that encoding? can I safely ignore it?

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  • We are moving an Access based corporate front-end into a Web-based App

    - by Max Vernon
    We have an enterprise application with a front end written in Microsoft Access 2003 that has evolved over the past 6 years. The back end data, and a fair amount of back-end logic is contained within several Microsoft SQL Server databases. This front end app consists of around 180 forms, and over 120,000 lines of code, and interacts with VB.Net DLLs that support various critical functions used by our sales force. The current system makes use of 3 monitors to display various information; the Access app uses COM+ to control Microsoft Outlook and Internet Explorer for various purposes. The Access front end sometimes occupies 2 screens, automatically resizing itself based on Windows API-reported screen dimensions. The app also uses a Google map to present data to our agents, and allows two-way interactivity with the map through COM+ connectivity to JavaScript contained in the Google map. At the urging of senior management, we are looking to completely rewrite this application using some web-based technology, such as ASP.Net or perhaps a LAMP stack (the thinking with the LAMP stack thing is "free" is pretty cheap). We want to move to a web-based app so we can eliminate the dependency on our physical location for hiring new sales force members. Currently, our main office is full to capacity, and we need to continue growing the company. Does anyone have any thoughts on what would be the best technology to use for a web-based app of this magnitude? Keeping in mind the app is dependent on back-end services on our existing infrastructure. The app handles financial data and personal customer data, among other things. [I've looked at Best practices for moving large MS Access application towards .Net? and read the answers, and most of the comments. Interesting reading, and has some valid points, but our C.O.O. and contracted Software Architect are pushing for a full web-based app, not a .Net Windows App]

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  • How should UI layer pass user input to BL layer?

    - by BornToCode
    I'm building an n-tier application, I have UI, BL, DAL & Entities (built from POCO) projects. (All projects have a reference to the Entities). My question is - how should I pass user input from the UI to the BL, as a bunch of strings passed to the BL method and the BL will build the object from the parameters, or should I build the objects inside the UI submit_function and send objects as parameters? EDIT: I wrote n-tier application, but what I actually meant was just layers.

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  • What is the point of the prototype method?

    - by Mild Fuzz
    I am reading through Javascript: The Good Parts, and struggled to get my head around the section on prototypes. After a little google, I came to the conclusion that it is to add properties to objects after the objects declaration. Using this script gleamed from w3schools, I noticed that removing the line adding the prototype property had no effect. So what is the point? //Prototyping function employee(name,jobtitle,born) { this.name=name; this.jobtitle=jobtitle; this.born=born; } var fred=new employee("Fred Flintstone","Caveman",1970); employee.prototype.salary=null; // <--- try removing this line fred.salary=20000; document.write(fred.salary);

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  • Helvetica Neue font defaults to medium instead of regular

    - by teppic
    I've installed the set of Helvetica Neue truetype fonts in my ~/.fonts directory, and they all show up correctly with fc-list. However, if an application selects the standard font, it's returning the medium style instead of the regular, e.g.: $ fc-match "Helvetica Neue" HelveticaNeueMedium.ttf: "Helvetica Neue" "??" If I remove the medium font from the system, it gets the correct one: $ fc-match "Helvetica Neue" HelveticaNeue.ttf: "Helvetica Neue" "???" I'm sure this can be corrected in fonts.conf, but what's the entry required? The only workaround I have right now is to remove the medium style as above, but this means I can't access it at all.

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  • Can't login to Unity 3d after enabling Xinerama for a short moment

    - by Amir Adar
    Today I connected a second monitor to my computer. I set it up using nVidia's control panel, and all was working quite well, so I figured it won't be a problem to try Xinerama, just to see the difference between that and twinview. After enabling Xinerama and restarting the X session, I saw that I was logged into a Unity 2d session. I thought it was a problem with Xinerama, so I switched back to twinview, but it still logged me into Unity 2d. I tried disconnecting the second monitor, no luck: still Unity 2d. I tried changing GPU drivers and installing drivers from a separate ppa, and still I was logged into Unity 2d. Up until this point, I didn't have any problem logging into Unity 3d. It only happened after I tried using Xinerama. I should note that I was doing all this while updates were going on in the background, so it could be something related to that, though I can't imagine what (I tried booting with another kernel, but no luck). So what exactly happened? Did changing the mode to Xinerama triggered some other changes that I'm not aware of? Did these updates cause a certain malfunction in the driver? Is it something else?

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  • Starcraft 2 not displaying map in game

    - by AntiFX
    I installed Starcraft II wings of liberty via playonlinux, it installed fine, it starts up fine, but when I go into a game the map does not show, it is just black, but all my buildings/units/mineral line shows up, but everything else is black, also all the abilities do not have any graphics, and I can not see my player portrait in the menus. I am on a 32 bit version of ubuntu 12.04 with wine 1.5.10 I think it is probably a missing package I need to install...but I have no clue which one it would be, or if it is even that. Can anyone help? Thank you in advance!

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