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• BI Publisher - Hottest Show in Vegas

  - by mike.donohue

  Two days down, two to go. Monday was a very busy and rewarding day. Attended "XML Publisher and FSG for Beginners" given by Susan Behn and Alyssa Johnson from Solution Beacon. It was packed, standing room only ... even though it was at 8:00 am. Later in the afternoon, despite being at the same time and in conflict with other Publisher related sessions, Noelle's session, "The Reporting Platform for Applications: Oracle Business Intelligence Publisher" and my session, "Introduction to Oracle Business Intelligence Publisher" were both very well attended. Immediately following our presentations we ran the BI Publisher Hands On Lab which was great fun. The turnout was so large that unfortunately we could not accommodate everyone who came to the lab. There were as many as 5 people huddled around each of the 20 machines. All the the groups completed the 2 main exercises. Some groups even took the product for an off-road test drive. Look at all the fun we had ... For those who could not attend or want the Hands On Lab document: Hands On Lab Oracle BI Publisher Collaborate 2010.pdf Note that these lab instructions assume a specific set up and files that you may not have in your environment. You can download and install a trial license version of BI Publisher from the download page. Highly recommend taking a look at the additional Tutorials available on OTN. Big thanks to Dan Vlamis and Jonathan Clark from Vlamis Software Solutions and to the Oracle BIWA SIG for setting up these machines and getting the time and space to run this lab. It was inspiring to see all of the attendees successfully creating reports. On Tuesday morning we were up early again for a rousing session of BI Publisher Best Practices that was also, very well attended especially considering the 8 am start. Later that morning saw Ben Bruno from STR Software and two of his customers speak on the additional functionality and ROI they have achieved by using Publisher within EBS and AventX to FAX and Email Publisher generated documents. Spent the afternoon staffing the BI Technology demo pod and had a steady flow of people dropping by with questions. Having a great conference so far and looking forward to the rest of it.

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• SQL SERVER – Identify Numbers of Non Clustered Index on Tables for Entire Database

  - by pinaldave

  Here is the script which will give you numbers of non clustered indexes on any table in entire database. SELECT COUNT(i.TYPE) NoOfIndex, [schema_name] = s.name, table_name = o.name FROM sys.indexes i INNER JOIN sys.objects o ON i.[object_id] = o.[object_id] INNER JOIN sys.schemas s ON o.[schema_id] = s.[schema_id] WHERE o.TYPE IN ('U') AND i.TYPE = 2 GROUP BY s.name, o.name ORDER BY schema_name, table_name Here is the small story behind why this script was needed. I recently went to meet my friend in his office and he introduced me to his colleague in office as someone who is an expert in SQL Server Indexing. I politely said I am yet learning about Indexing and have a long way to go. My friend’s colleague right away said – he had a suggestion for me with related to Index. According to him he was looking for a script which will count all the non clustered on all the tables in the database and he was not able to find that on SQLAuthority.com. I was a bit surprised as I really do not remember all the details about what I have written so far. I quickly pull up my phone and tried to look for the script on my custom search engine and he was correct. I never wrote a script which will count all the non clustered indexes on tables in the whole database. Excessive indexing is not recommended in general. If you have too many indexes it will definitely negatively affect your performance. The above query will quickly give you details of numbers of indexes on tables on your entire database. You can quickly glance and use the numbers as reference. Please note that the number of the index is not a indication of bad indexes. There is a lot of wisdom I can write here but that is not the scope of this blog post. There are many different rules with Indexes and many different scenarios. For example – a table which is heap (no clustered index) is often not recommended on OLTP workload (here is the blog post to identify them), drop unused indexes with careful observation (here is the script for it), identify missing indexes and after careful testing add them (here is the script for it). Even though I have given few links here it is just the tip of the iceberg. If you follow only above four advices your ship may still sink. Those who wants to learn the subject in depth can watch the videos here after logging in. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Index, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• F# &ndash; Immutable List vs a Mutable Collection in Arrays

  - by MarkPearl

  Another day gone by looking into F#. Today I thought I would ramble on about lists and arrays in F#. Coming from a C# background I barely ever use arrays now days in my C# code – why you may ask – because I find lists generally handle most of the business scenario’s that I come across. So it has been an interesting experience with me keep bumping into Array’s & Lists in F# and I wondered why the frequency of coming across arrays was so much more in this language than in C#. Take for instance the code I stumbled across today. let rng = new Random() let shuffle (array : 'a array) = let n = array.Length for x in 1..n do let i = n-x let j = rng.Next(i+1) let tmp = array.[i] array.[i] <- array.[j] array.[j] <- tmp array   Quite simply its purpose is to “shuffle” an array of items. So I thought, why does it have the “a’ array'” explicitly declared? What if I changed it to a list? Well… as I was about to find out there are some subtle differences between array’s & lists in F# that do not exist in C#. Namely, mutability. A list in F# is an ordered, immutable series of elements of the same type, while an array is a fixed-size zero based, mutable collection of consecutive data elements that are all of the same type. For me the keyword is immutable vs mutable collection. That’s why I could not simply swap the ‘a array with ‘a list in my function header because then later on in the code the syntax would not be valid where I “swap” item positions. i.e. array.[i] <- array.[j] would be invalid because if it was a list, it would be immutable and so couldn’t change by its very definition.. So where does that leave me? It’s to early days to say. I don’t know what the balance will be in future code – will I typically always use lists or arrays or even have a balance, but time will tell.

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• Oracle Coherence 3.5 : Create Internet-scale applications using Oracle's high-performance data grid

  - by frederic.michiara

  Oracle Coherence Coherence provides replicated and distributed (partitioned) data management and caching services on top of a reliable, highly scalable peer-to-peer clustering protocol. Coherence has no single points of failure; it automatically and transparently fails over and redistributes its clustered data management services when a server becomes inoperative or is disconnected from the network. When a new server is added, or when a failed server is restarted, it automatically joins the cluster and Coherence fails back services to it, transparently redistributing the cluster load. Coherence includes network-level fault tolerance features and transparent soft re-start capability to enable servers to self-heal. For the ones looking at an easy reading and first good approach to Oracle Coherence, I would recommend reading the following book : Overview of Oracle Coherence 3.5 Build scalable web sites and Enterprise applications using a market-leading data grid product Design and implement your domain objects to work most effectively with Coherence and apply Domain Driven Designs (DDD) to Coherence applications Leverage Coherence events and continuous queries to provide real-time updates to client applications Successfully integrate various persistence technologies, such as JDBC, Hibernate, or TopLink, with Coherence Filled with numerous examples that provide best practice guidance, and a number of classes you can readily reuse within your own applications This book is targeted to Architects and developers, and as in our team we're more about Solutions Architects than developers I found interest in this book as it help to understand better Oracle Coherence and its value. The only point I may not agree with the authors is that Oracle Coherence is not an alternative to Oracle RAC in providing High Availability, but combining both Oracle RAC and Oracle Coherence will help Architects and Customers to reach higher level of service and high-availability. This book is available on https://www.packtpub.com/oracle-coherence-3-5/book Need to find out about Table of contents : https://www.packtpub.com/toc/oracle-coherence-35-table-contents Discover a sample chapter : https://www.packtpub.com/sites/default/files/6125_Oracle%20Coherence_SampleChapter.pdf Read also articles from the Authors on http://www.packtpub.com/ : Working with Aggregators in Oracle Coherence 3.5 Working with Value Extractors and Simplifying Queries in Oracle Coherence 3.5 Querying the Data Grid in Coherence 3.5: Obtaining Query Results and Using Indexes Installing Coherence 3.5 and Accessing the Data Grid: Part 1 Installing Coherence 3.5 and Accessing the Data Grid: Part 2 For more information on Oracle Coherence : What Oracle Coherence Can Do for You... : http://www.oracle.com/technology/products/coherence/coherencedatagrid/coherence_solutions.html Oracle Coherence on OTN : http://www.oracle.com/technology/products/coherence/index.html Oracle Coherence Knowledge Base : http://coherence.oracle.com/display/COH/Oracle+Coherence+Knowledge+Base+Home

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• User Group Meeting Summary - April 2010

  - by Michael Stephenson

  Thanks to everyone who could make it to what turned out to be an excellent SBUG event.  First some thanks to:  Speakers: Anthony Ross and Elton Stoneman Host: The various people at Hitachi who helped to organise and arrange the venue.   Session 1 - Getting up and running with Windows Mobile and the Windows Azure Service Bus In this session Anthony discussed some considerations for using Windows Mobile and the Windows Azure Service Bus from a real-world project which Hitachi have been working on with EasyJet.  Anthony also walked through a simplified demo of the concepts which applied on the project.   In addition to the slides and demo it was also very interesting to discuss with the guys involved on this project to hear about their real experiences developing with the Azure Service Bus and some of the limitations they have had to work around in Windows Mobiles ability to interact with the service bus.   On the back of this session we will look to do some further activities around this topic and the guys offered to share their wish list of features for both Windows Mobile and Windows Azure which we will look to share for user group discussion.   Another interesting point was the cost aspects of using the ISB which were very low.   Session 2 - The Enterprise Cache In the second session Elton used a few slides which are based around one of his customer scenario's where they are looking into the concept of an Enterprise Cache within the organisation.  Elton discusses this concept and also a codeplex project he is putting together which allows you to take advantage of a cache with various providers such as Memcached, AppFabric Caching and Ncache.   Following the presentation it was interesting to hear peoples thoughts on various aspects such as the enterprise cache versus an out of process application cache.  Also there was interesting discussion around how people would like to search the cache in the future.   We will again look to put together some follow-up activity on this   Meeting Summary Following the meeting all slide decks are saved in the skydrive location where we keep content from all meetings: http://cid-40015ea59a1307c8.skydrive.live.com/browse.aspx/.Public/SBUG/SBUG%20Meetings/2010%20April   Remember that the details of all previous events are on the following page. http://uksoabpm.org/Events.aspx   Competition We had three copies of the Windows Identity Foundation Patterns and Practices book that were raffles on the night, it would be great to hear any feedback on the book from those who won it.   Recording The user group meeting was recorded and we will look to make this available online sometime soon.   UG Business The following things were discussed as general UG topics:   We will change the name of the user group to the UK Connected Systems User Group to we are more inline with other user groups who cover similar topics and we believe this will help us to attract more members.  The content or focus of the user group is not expected to change.   The next meeting is 26th May and can be registered at the following link: http://sbugmay2010.eventbrite.com/

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• Eggnog and Oracle’s StorageTek SL150 Updates

  - by Kristin Rose

  Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* 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:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Looks like the holiday’s came early this year! You may remember this snazzy blog that posted a couple months back,  “Keepin’ It Simple with Storage Tek SL150”, that was based on the benefits around Oracle’s StorageTek SL150. Well, in addition to these great benefits, OPN is pleased to provide you with a complete StorageTek SL150 winter wish list that is about to come true! 1. SL150 is the only product in the Oracle portfolio, for which OPN Members can become authorized to create and provide support.  2. OPN Members can qualify for the OPN Incentive Program Rebates, without Oracle Support Attach, (provided all other criteria is met). The requirement of Premier Support Attach has been exempted for this product. 3. OPN Members who become authorized under this model will be eligible for an additional discount on parts.  4. As always Oracle’s StorageTek SL150 is Simple, Scalable and will help you Save! To add just a bit more cheer to your cup of hot coco, watch this video on why Oracle’s StorageTek SL150 Tape Library is for you! So if you haven’t done so already, contact your Oracle Channel Sales representative — let them know if you’ve been nice this year, and tell them you want to learn more! Cheers! The OPN Communications Team

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• Partition Wise Joins II

  - by jean-pierre.dijcks

  One of the things that I did not talk about in the initial partition wise join post was the effect it has on resource allocation on the database server. When Oracle applies a different join method - e.g. not PWJ - what you will see in SQL Monitor (in Enterprise Manager) or in an Explain Plan is a set of producers and a set of consumers. The producers scan the tables in the the join. If there are two tables the producers first scan one table, then the other. The producers thus provide data to the consumers, and when the consumers have the data from both scans they do the join and give the data to the query coordinator. Now that behavior means that if you choose a degree of parallelism of 4 to run such query with, Oracle will allocate 8 parallel processes. Of these 8 processes 4 are producers and 4 are consumers. The consumers only actually do work once the producers are fully done with scanning both sides of the join. In the plan above you can see that the producers access table SALES [line 11] and then do a PX SEND [line 9]. That is the producer set of processes working. The consumers receive that data [line 8] and twiddle their thumbs while the producers go on and scan CUSTOMERS. The producers send that data to the consumer indicated by PX SEND [line 5]. After receiving that data [line 4] the consumers do the actual join [line 3] and give the data to the QC [line 2]. BTW, the myth that you see twice the number of processes due to the setting PARALLEL_THREADS_PER_CPU=2 is obviously not true. The above is why you will see 2 times the processes of the DOP. In a PWJ plan the consumers are not present. Instead of producing rows and giving those to different processes, a PWJ only uses a single set of processes. Each process reads its piece of the join across the two tables and performs the join. The plan here is notably different from the initial plan. First of all the hash join is done right on top of both table scans [line 8]. This query is a little more complex than the previous so there is a bit of noise above that bit of info, but for this post, lets ignore that (sort stuff). The important piece here is that the PWJ plan typically will be faster and from a PX process number / resources typically cheaper. You may want to look out for those plans and try to get those to appear a lot... CREDITS: credits for the plans and some of the info on the plans go to Maria, as she actually produced these plans and is the expert on plans in general... You can see her talk about explaining the explain plan and other optimizer stuff over here: ODTUG in Washington DC, June 27 - July 1 On the Optimizer blog At OpenWorld in San Francisco, September 19 - 23 Happy joining and hope to see you all at ODTUG and OOW...

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• Oracle SOA Partner Community Forum Lisbon, Portugal - 21/Apr/10

  - by Claudia Costa

    We would like to invite you to attend our SOA Partner Community Forum that will be in held in Lisbon, April 21, 2010 The Oracle SOA Partner Community Forum is a wonderful opportunity to: Meet with Oracle SOA and BPM Product management Exchange thoughts and knowledge with SOA and BPM experts Learn from successful SOA implementation Network within the Oracle SOA Partner Community During this highly informative event you can learn about partner success stories, participate in an array of breakout sessions, exchange information with other partners and enjoy a vibrant panel discussion. Places are limited, so register today. Registration only takes a few minutes and it is free of charge. By registration you will confirm that you will attend to the event. Seminar is free. In the event that you cancel your registration after April 16th 2010 Oracle may request that you will pay late cancellation fee of € 150. Please visit our website for further information. Alternatively, if you require assistance or have any queries please contact Jürgen Kress. Agenda 10:00     Welcome & Introduction 10:15     SOA Cloud presentation 11:15     SOA Partner Sales Campaign 12:30     Lunch break 13:15     Partner Reference Case 14:15     BPMN 2.0 15:00     Cocktail reception   Become a member of the SOA Partner Community - free of charge! Please first login at http://partner.oracle.com and then visit: http://www.oracle.com/goto/emea/soaThe goal of the SOA Partner Community is to provide you with the latest information on Oracle's SOA and BPM offerings and to facilitate the exchange of experience around Oracle SOA between community members.   The SOA Partner Community keeps you informed about: ·         News & Events ·         Product Information ·         Education & Certification ·         Analyst Report ·         Marketing & Sales ·         Monthly SOA Newsletter ·         Monthly SOA Webcast ·         SOA Community Forum ------------------------------------------------   Location: Lagoas Park Hotel 2740-245, Porto Salvo, Oeiras  

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• Share Your Top 30 Visited Domains with Visitation Cloud for Firefox

  - by Asian Angel

  Curious about the domains that you visit most or perhaps you want a way to share that information on a social website? Now you can see and share the 30 most visited domains in your browser’s history with the Visitation Cloud extension. Accessing Visitation Cloud As soon as you install the extension you can get started using it. Depending on how your browser’s UI is set up there are three methods for accessing Visitation Cloud: a “Visitation Cloud Button” inserted at the end of your “Bookmarks Toolbar”, a menu listing in the “Tools Menu”, and a “Toolbar Button” (not shown here). Visitation Cloud in Action As soon as you activate Visitation Cloud a new window will appear with your top domains displayed in a cloud format. Keep in mind that this is more than just a static image…each listing is actually a clickable link. Clicking on any of the listings will open that domain in a new tab or window depending on your particular browser settings. If you feel that you have a great set of links and want to share it with your friends then that is easy to do. Right click anywhere within the Visitation Cloud Window and select “Save as…”. The “cloud image” can be saved in “.png, .jpg, or Scalable Vector Graphics (.svg)” format. For our example we chose the “.svg format”. Perhaps you love the set of links but not the layout…right click and select “Randomize” to change how the cloud looks. Here is our cloud after being “Randomized”. Things definitely got moved around… Accessing the Visitation Cloud Image in other Browsers Once you have your “cloud image” saved you can share it with friends or save it for your own future use in other browsers. Here is our “cloud image” open in Opera Browser with link opening in progress. The same “cloud image” open in Google Chrome. Very nice… Conclusion While this may not be something that everyone will use Visitation Cloud does make for a rather unique, interesting, & fun way to access and share your most visited domains. Links Download the Visitation Cloud extension (Mozilla Add-ons) Similar Articles Productive Geek Tips Fix "Security Error: Domain Name Mismatch" Warning in FirefoxAdd Variety to Your Searches with Search CloudletRestore Your Missing/Deleted Smart Bookmarks Folder in Firefox 3Blocking Spam from International Senders in Windows Vista MailSee Where a Package is Installed on Ubuntu TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Share High Res Photos using Divvyshot Draw Online using Harmony How to Browse Privately in Firefox Kill Processes Quickly with Process Assassin Need to Come Up with a Good Name? Try Wordoid StockFox puts a Lightweight Stock Ticker in your Statusbar

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• Miracle Growth Of Organs From Our Own Cells

  - by Rekha

  At the current situation, there is a shortage of healthy organs. The donor and patient also have to be closely matched and there are chances for the patient’s immune system may reject the transplant. Right now, researchers are seriously involved in a new kind of solution: "bioartifical" organs are being grown from the patient’s own cells. There are a few people who have already received lab-grown bladders. Bladder technique was developed by Anthony Atala of the Wake Forest Institute for Regenerative Medicine in Winston-Salem, North Carolina. The healthy cells from the patient’s diseased bladder is taken and cause them to multiply profusely in petri dishes. The muscle cells go on the outside, urothelial cells on the inside by layering the cells one layer at a time. The bladder-to-be is then incubated at body temperature until the cells form functioning tissue. This process could take six to eight months. Organs with lots of blood vessels, such as kidneys or livers, are harder to grow than hollow ones like bladders. Atala’s group works on 22 organs and tissues including ears, recently made a functioning piece of human liver. Others in the list includes:  Columbia University – Jawbone, Yale University – Lung, University of Minnesota – Rat heart, University of Michigan – Artificial Kidney There are possibilities that growing a copy of patient’s organ is not always possible – for instance, when the original is completely damaged by cancer. By using stem cell bank collected without harming human embryos from amniotic fluid in the womb, those cells are coaxed into becoming heart, liver and other organ cells. A bank of 1,00,000 stem cell samples would have enough genetic variety to match nearly any patient. Surgeons can order organs grown as needed instead of waiting for the perfect donor. "There are few things as devastating for a surgeon as knowing you have to replace the tissue and you’re doing something that’s not ideal," says Atala, a urologic surgeon himself. "Wouldn’t it be great if they had their own organ?" Great for the patient especially, he means. Via National Geographic  and cc image credit This article titled,Miracle Growth Of Organs From Our Own Cells, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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• ASP.Net or WPF(C#)?

  - by Rachel

  Our team is divided on this and I wanted to get some third-party opinions. We are building an application and cannot decide if we want to use .Net WPF Desktop Application with a WCF server, or ASP.Net web app using jQuery. I thought I'd ask the question here, with some specs, and see what the pros/cons of using either side would be. I have my own favorite and feel I am biased. Ideally we want to build the initial release of the software as fast as we can, then slow down and take time to build in the additional features/components we want later on. Above all we want the software to be fast. Users go through records all day long and delays in loading records or refreshing screens kills their productivity. Application Details: I'm estimating around 100 different screens for initial version, with plans for a lot of additional screens being added on later after the initial release. We are looking to use two-way communication for reminder and event systems Currently has to support around 100 users, although we've been told to allow for growth up to 500 users We have multiple locations Items to consider (maybe not initially in some cases but in future releases): Room for additional components to be added after initial release (there are a lot of of these... perhaps work here than the initial application) Keyboard navigation Performance is a must Production Speed to initial version Low maintenance overhead Future support Softphone/Scanner integration Our Developers: We have 1 programmer who has been learning WPF the past few months and was the one who suggested we use WPF for this. We have a 2nd programmer who is familiar with ASP.Net and who may help with the project in the future, although he will not be working on it much up until the initial release since his time is spent maintaining our current software. There is me, who has worked with both and am comfortable in either We have an outside company doing the project management, and they are an ASP.Net company. We plan on hiring 1-2 others, however we need to know what direction we are going in first Environment: General users are on Windows 2003 server with Terminal Services. They connect using WYSE thin-clients over an RDP connection. Admin staff has their own PCs with XP or higher. Users are allowed to specify their own resolution although they are limited to using IE as the web browser. Other locations connects to our network over a MPLS connection Based on that, what would you choose and why? I am asking here instead of SO because I am looking for opinions and not answers

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• Inside Red Gate - Ricky Leeks

  - by Simon Cooper

  So, one of our profilers has a problem. Red Gate produces two .NET profilers - ANTS Performance Profiler (APP) and ANTS Memory Profiler (AMP). Both products help .NET developers solve problems they are virtually guaranteed to encounter at some point in their careers - slow code, and high memory usage, respectively. Everyone understands slow code - the symptoms are very obvious (an operation takes 2 hours when it should take 10 seconds), you know when you've solved it (the same operation now takes 15 seconds), and everyone understands how you can use a profiler like APP to help solve your particular problem. High memory usage is a much more subtle and misunderstood concept. How can .NET have memory leaks? The garbage collector, and how the CLR uses and frees memory, is one of the most misunderstood concepts in .NET. There's hundreds of blog posts out there covering various aspects of the GC and .NET memory, some of them helpful, some of them confusing, and some of them are just plain wrong. There's a lot of misconceptions out there. And, if you have got an application that uses far too much memory, it can be hard to wade through all the contradictory information available to even get an idea as to what's going on, let alone trying to solve it. That's where a memory profiler, like AMP, comes into play. Unfortunately, that's not the end of the issue. .NET memory management is a large, complicated, and misunderstood problem. Even armed with a profiler, you need to understand what .NET is doing with your objects, how it processes them, and how it frees them, to be able to use the profiler effectively to solve your particular problem. And that's what's wrong with AMP - even with all the thought, designs, UX sessions, and research we've put into AMP itself, some users simply don't have the knowledge required to be able to understand what AMP is telling them about how their application uses memory, and so they have problems understanding & solving their memory problem. Ricky Leeks This is where Ricky Leeks comes in. Created by one of the many...colourful...people in Red Gate, he headlines and promotes several tutorials, pages, and articles all with information on how .NET memory management actually works, with the goal to help educate developers on .NET memory management. And educating us all on how far you can push various vegetable-based puns. This, in turn, not only helps them understand and solve any memory issues they may be having, but helps them proactively code against such memory issues in their existing code. Ricky's latest outing is an interview on .NET Rocks, providing information on the Top 5 .NET Memory Management Gotchas, along with information on a free ebook on .NET Memory Management. Don't worry, there's loads more vegetable-based jokes where those came from...

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

  - by Dave Campbell

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

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• Defining Social Media Terms

  - by David Dorf

  As I talk about social in the context of retail, I sometimes get tripped up on different terms. I know what I mean, but the audience may have something else in mind. So I decided to see if I could find some well accepted definitions for common terms. While there are definitions on the Internet, I'm not sure they are well accepted. After reviewing several, here's what I came up with: Social Network: a structure of individuals and groups connected together by commonality. That seems pretty straightforward. A group of friends, co-workers, music fans, etc. The key here is that they have something in common that connects them. Social Media: Internet channels that support the collaborative publishing of information by and for social networks. The key here is to differentiate between traditional one-way media, and conversational social media. When its social its two-way, allowing both the publishing and consuming of information. Examples are blogs, wikis, Twitter, Facebook, etc. Social Marketing: the use of social media for marketing, public relations, and customer service. Wikipedia actually includes "selling" here but I think that's separate from marketing, as you'll see further down below. Most people look at social media as entertainment, but the marketing angle adds business value. This is where retailers discover and engage customers to build a relationship. Social Merchandising: the integration of social media and product discovery. Whereas marketing is focused more on brand image, customer engagement, and promotions, merchandising is more directly trying to convert browsers into purchases. This includes deciding what customers want, often by asking the social network, and deciding how to position products to the social network. Social Selling: the incorporation of e-commerce into social media. While on a social media site, social selling enables the purchasing of goods/services in the user's context, without leaving the social media channel. If a user clicks on an advertisement and is taken to an e-commerce site, then that's really just web advertising and not social selling. Well, do these terms and definitions make sense? Let me know what you think.

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• Oracle SOA Security for OUAF Web Services

  - by Anthony Shorten

  With the ability to use Oracle SOA Suite 11g with the Oracle Utilities Application Framework based products, an additional consideration needs to be configured to ensure correct integration. That additional consideration is security. By default, SOA Suite propagates any credentials from the calling application through to the interfacing applications. In most cases, this behavior is not appropriate as the calling application may use different credential stores and also some interfaces are “disconnected” from a calling application (for example, a file based load using the File Adapter). These situations require that the Web Service calls to the Oracle Utilities Application Framework based products have their own valid credentials. To do this the credentials must be attached at design time or at run time to provide the necessary credentials for the call. There are a number of techniques that can be used to do this: At design time, when integrating a Web Service from an Oracle Utilities Application Framework based product you can attach the security policy “oracle/wss_username_token_client_policy” in the composite.xml view. In this view select the Web Service you want to attach the policy to and right click to display the context menu and select “Configure WS Policies” and select the above policy from the list. If you are using SSL then you can use “oracle/wss_username_token_over_ssl_client_policy” instead. At design time, you can also specify the credential key (csf-key) associated with the above policy by selecting the policy and clicking “Edit Config Override Properties”. You name the key appropriately. Everytime the SOA components are deployed the credential configuration is also sent. You can also do this after deployment, or what I call at “runtime”, by specifying the policy and credential key in the Fusion Middleware Control. Refer to the Fusion Middleware Control documentation on how to do this. To complete the configuration you need to add a map and the key specified earlier to the credential store in the Oracle WebLogic instance used for Oracle SOA Suite. From Fusion Middleware Control, you do this by selecting the domain the SOA Suite is installed in a select “Credentials” from the context menu. You now need to add the credentials by adding the map “oracle.wsm.security” (the name is IMPORTANT) and creating a key with the necessary valid credentials. The example below added a key called “mdm.key”. The name I used is for example only. You can name the key anything you like as long as it corresponds to the key you specified in the design time component. Note: I used SYSUSER as an example credentials in the example, in real life you would use another credential as SYSUSER is not appropriate for production use. This key can be reused for other Oracle Utilities Application Framework Web Service integrations or you can use other keys for individual Web Service calls. Once the key is created and the SOA Suite components deployed the transactions should be able to be called as necessary. If you need to change the password for the credentials it can be done using the Fusion Middleware Control functionality.

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• New Themes New Benefits (WinForms)

  We believe that working hard on something can be great fun at the end when everything is done and the seeds have resulted in the sweetest fruits. This is the case with the new Theming Mechanism and the new Visual Style Builder which we introduced as of Q1 2010.   I am not going to dive into any details on the new concepts behind all this stuff, but will simply focus on the numbers: both in terms of loading speed and memory usage. As you may already know, the new approach we use to style our controls uses the so called Style Repository which stores style settings that can be reused throughout the whole theme. As a result, we have estimated that the size of our themes has been significantly reduced. For instance, the size of all XML files of the Desert theme sums up to 1.83 MB. The case with the new version of the Desert theme is drastically different. Despite the fact that the new theme consists of more XML files compared to the old, its size is only 707 KB!   Furthermore, we have performed a simple performance test since the common sense tells us that such a great improvement in terms of memory footprint should be followed by a great improvement in terms of speed. We have estimated that loading and applying the new Desert theme to a form containing all RadControls for WinForms takes roughly 30% less time compared to the same operation with the old version of the Desert theme. The following screenshots briefly demonstrate the scenario which we used to estimate the loading time difference between the old and the new Desert theme:     Here, the old Desert theme is applied to all controls on the Form which takes almost 1,3 seconds.     Applying the new Desert theme (based on the new Theming Mechanism) takes about 0,78 seconds.   On top of all these great improvements, we can add the fact that the new Visual Style Builder significantly reduces the time needed to style a control by entirely changing the approach compared to the old version of this tool. You can be sure that we have already prepared some great new stuff for Q1 2010 SP1 that will simplify things further so that designing themes with the new VSB will become more fun than ever!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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• New Themes New Benefits (WinForms)

  We believe that working hard on something can be great fun at the end when everything is done and the seeds have resulted in the sweetest fruits. This is the case with the new Theming Mechanism and the new Visual Style Builder which we introduced as of Q1 2010.   I am not going to dive into any details on the new concepts behind all this stuff, but will simply focus on the numbers: both in terms of loading speed and memory usage. As you may already know, the new approach we use to style our controls uses the so called Style Repository which stores style settings that can be reused throughout the whole theme. As a result, we have estimated that the size of our themes has been significantly reduced. For instance, the size of all XML files of the Desert theme sums up to 1.83 MB. The case with the new version of the Desert theme is drastically different. Despite the fact that the new theme consists of more XML files compared to the old, its size is only 707 KB!   Furthermore, we have performed a simple performance test since the common sense tells us that such a great improvement in terms of memory footprint should be followed by a great improvement in terms of speed. We have estimated that loading and applying the new Desert theme to a form containing all RadControls for WinForms takes roughly 30% less time compared to the same operation with the old version of the Desert theme. The following screenshots briefly demonstrate the scenario which we used to estimate the loading time difference between the old and the new Desert theme:     Here, the old Desert theme is applied to all controls on the Form which takes almost 1,3 seconds.     Applying the new Desert theme (based on the new Theming Mechanism) takes about 0,78 seconds.   On top of all these great improvements, we can add the fact that the new Visual Style Builder significantly reduces the time needed to style a control by entirely changing the approach compared to the old version of this tool. You can be sure that we have already prepared some great new stuff for Q1 2010 SP1 that will simplify things further so that designing themes with the new VSB will become more fun than ever!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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• World Record Performance on PeopleSoft Enterprise Financials Benchmark on SPARC T4-2

  - by Brian

  Oracle's SPARC T4-2 server achieved World Record performance on Oracle's PeopleSoft Enterprise Financials 9.1 executing 20 Million Journals lines in 8.92 minutes on Oracle Database 11g Release 2 running on Oracle Solaris 11. This is the first result published on this version of the benchmark. The SPARC T4-2 server was able to process 20 million general ledger journal edit and post batch jobs in 8.92 minutes on this benchmark that reflects a large customer environment that utilizes a back-end database of nearly 500 GB. This benchmark demonstrates that the SPARC T4-2 server with PeopleSoft Financials 9.1 can easily process 100 million journal lines in less than 1 hour. The SPARC T4-2 server delivered more than 146 MB/sec of IO throughput with Oracle Database 11g running on Oracle Solaris 11. Performance Landscape Results are presented for PeopleSoft Financials Benchmark 9.1. Results obtained with PeopleSoft Financials Benchmark 9.1 are not comparable to the the previous version of the benchmark, PeopleSoft Financials Benchmark 9.0, due to significant change in data model and supports only batch. PeopleSoft Financials Benchmark, Version 9.1 Solution Under Test Batch (min) SPARC T4-2 (2 x SPARC T4, 2.85 GHz) 8.92 Results from PeopleSoft Financials Benchmark 9.0. PeopleSoft Financials Benchmark, Version 9.0 Solution Under Test Batch (min) Batch with Online (min) SPARC Enterprise M4000 (Web/App) SPARC Enterprise M5000 (DB) 33.09 34.72 SPARC T3-1 (Web/App) SPARC Enterprise M5000 (DB) 35.82 37.01 Configuration Summary Hardware Configuration: 1 x SPARC T4-2 server 2 x SPARC T4 processors, 2.85 GHz 128 GB memory Storage Configuration: 1 x Sun Storage F5100 Flash Array (for database and redo logs) 2 x Sun Storage 2540-M2 arrays and 2 x Sun Storage 2501-M2 arrays (for backup) Software Configuration: Oracle Solaris 11 11/11 SRU 7.5 Oracle Database 11g Release 2 (11.2.0.3) PeopleSoft Financials 9.1 Feature Pack 2 PeopleSoft Supply Chain Management 9.1 Feature Pack 2 PeopleSoft PeopleTools 8.52 latest patch - 8.52.03 Oracle WebLogic Server 10.3.5 Java Platform, Standard Edition Development Kit 6 Update 32 Benchmark Description The PeopleSoft Enterprise Financials 9.1 benchmark emulates a large enterprise that processes and validates a large number of financial journal transactions before posting the journal entry to the ledger. The validation process certifies that the journal entries are accurate, ensuring that ChartFields values are valid, debits and credits equal out, and inter/intra-units are balanced. Once validated, the entries are processed, ensuring that each journal line posts to the correct target ledger, and then changes the journal status to posted. In this benchmark, the Journal Edit & Post is set up to edit and post both Inter-Unit and Regular multi-currency journals. The benchmark processes 20 million journal lines using AppEngine for edits and Cobol for post processes. See Also Oracle PeopleSoft Benchmark White Papers oracle.com SPARC T4-2 Server oracle.com OTN PeopleSoft Financial Management oracle.com OTN Oracle Solaris oracle.com OTN Oracle Database 11g Release 2 Enterprise Edition oracle.com OTN Disclosure Statement Copyright 2012, Oracle and/or its affiliates. All rights reserved. Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners. Results as of 1 October 2012.

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• 10.10 freezing when sftp downloading

  - by aGr

  My ubuntu 10.10 is freezing during downloading from my other computer on sftp. I thought it might be some nautilus issues so I tried it via command line and I got the same thing - after few minutes the whole computer freezes. Mostly the numlock led is blinking (I've heard somewhere that this means a kernel panic), but not in 100% cases. I dunno if that helps but here is a log from /var/log/message in the time that this happened. At least I hope so - it wasn't that big, when it happened before. But this looks quite "errorish", right? (isn't complete - see bottom) Jan 5 17:57:49 tomas-ntb kernel: imklog 4.2.0, log source = /proc/kmsg started. Jan 5 17:57:49 tomas-ntb rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="953" x-info="http://www.rsyslog.com"] (re)start Jan 5 17:57:49 tomas-ntb rsyslogd: rsyslogd's groupid changed to 103 Jan 5 17:57:49 tomas-ntb rsyslogd: rsyslogd's userid changed to 101 Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] Initializing cgroup subsys cpuset Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] Initializing cgroup subsys cpu Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] Linux version 2.6.35-24-generic (buildd@vernadsky) (gcc version 4.4.5 (Ubuntu/Linaro 4.4.4-14ubuntu5) ) #42-Ubuntu SMP Thu Dec 2 01:41:57 UTC 2010 (Ubuntu 2.6.35-24.42-generic 2.6.35.8) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-provided physical RAM map: Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009e800 (usable) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 000000000009e800 - 00000000000a0000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 0000000000100000 - 00000000dffa8000 (usable) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 00000000dffa8000 - 00000000dffb0000 (ACPI NVS) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 00000000dffb0000 - 00000000dffbff00 (ACPI data) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 00000000dffbff00 - 00000000dfff0000 (ACPI NVS) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 00000000dfff0000 - 00000000e0000000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 00000000ff700000 - 0000000100000000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 0000000100000000 - 0000000120000000 (usable) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] BIOS-e820: 0000000120000000 - 0000000140000000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] Notice: NX (Execute Disable) protection cannot be enabled: non-PAE kernel! Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] DMI 2.5 present. Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] AMI BIOS detected: BIOS may corrupt low RAM, working around it. Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] last_pfn = 0xdffa8 max_arch_pfn = 0x100000 Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] x86 PAT enabled: cpu 0, old 0x7040600070406, new 0x7010600070106 Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] Scanning 0 areas for low memory corruption Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] modified physical RAM map: Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] modified: 0000000000000000 - 0000000000010000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] modified: 0000000000010000 - 000000000009e800 (usable) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] modified: 000000000009e800 - 00000000000a0000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] modified: 00000000000e0000 - 0000000000100000 (reserved) Jan 5 17:57:49 tomas-ntb kernel: [ 0.000000] modified: 0000000000100000 - 00000000dffa8000 (usable) ... to long - for whole and better view click here

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• SQL SERVER – SSMS 2012 Reset Keyboard Shortcuts to Default

  - by pinaldave

  As a technologist, I love my laptop very much and I do not lend it to anyone as I am usually worried that my settings would be messed up when I get it back from its borrower. Honestly, I love how I have set up my laptop and I enjoy the settings and programs I have placed on my computer. If someone changes things there – it will surely be annoying for me. Recently at one of the conferences I was attending in, a small accident happened – one of the speaker’s hard drives failed. The owner immediately panicked due to this and had no clue what to do. I suggested that he may not be able to show the demos but can still show a few things with the product. He accepted my suggestion and finished the presentation. Good thing everybody looked satisfied. Little did I know that a small accident was waiting for me later that day. When I opened my SQL Server Denali, all my shortcuts were totally out of order. When I hit F5, instead of executing query, it was opening up some debugging screen for me. I was very much annoyed so I decided to surf the Internet for me to know how I could reset it to SQL Server 2012 default shortcut. There were so many different advices which further confused me. After reading 4-5 different methods, I used the following method to reset my SQL Server 2012 keyboard shortcuts: Go to SSMS > Tools >> Import and Export Settings… As I wanted to reset all the settings I selected the “Reset all settings” option, but you can select other options as per your need. I suggest you save your current Settings; however, in my case, I did not like the current option so I just decided to overwrite my settings. Here I have two options –  I can either set my shortcut to SQL Server 2012 settings or Visual Studio 2010. I went ahead with the SQL Server 2012 option. Success! Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Server Management Studio, SQL Tips and Tricks, T SQL, Technology

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• Digital Storage for Airline Entertainment

  - by Bill Evjen

  by Thomas Coughlin Common flash memory cards The most common flash memory products currently in use are SD cards and derivative products (e.g. mini and micro-SD cards) Some compact flash used for professional applications (such as DSLR cameras) Evolution of leading flash formats Standardization –> market expansion Market expansion –> volume iNAND –> focus is on enabling embedded X3 iSSD –> ideal for thin form factor devices Flash memory applications Phones are the #1 user of flash memory Flash memory is used as embedded and removable storage in many mobile applications Flash memory is being used in computers as USB sticks and SSDs Possible use of flash memory in computer combined with HDDs (hybrid HDDs and paired or dual storage computers) It can be a removable card or an embedded card These devices can only handle a specific number of writes Flash memory reads considerably quicker than hard drives Hybrid and dual storage in computers SSDs can provide fast performance but they are expensive HDDs can provide cheap storage but they are relatively slow Combining some flash memory with a HDD can provide costs close to those of HDDs and performance close to flash memory Seagate Momentus XT hybrid HDD Various dual storage offerings putting flash memory with HDDs Other common flash memory devices USB sticks All forms and colors Used for moving files around Some sold with content on them (Sony Movies on USB sticks) Solid State Drives (SSDs) Floating Gate Flash Memory Cell When a bit is programmed, electrons are stored upon the floating gate This has the effect of offsetting the charge on the control gate of the transistor If there is no charge upon the floating gate, then the control gate’s charge determines whether or not a current flows through the channel A strong charge on the control gate assumes that no current flows. A weak charge will allow a strong current to flow through. Similar to HDDs, flash memory must provide: Bit error correction Bad block management NAND and NOR memories are treated differently when it comes to managing wear In many NOR-based systems no management is used at all, since the NOR is simply used to store code, and data is stored in other devices. In this case, it would take a near-infinite amount of time for wear to become an issue since the only time the chip would see an erase/write cycle is when the code in the system is being upgraded, which rarely if ever happens over the life of a typical system. NAND is usually found in very different application than is NOR Flash memory wears out This is expected to get worse over time Retention: Disappearing data Bits fade away Retention decreases with increasing read/writes Bits may change when adjacent bits are read Time and traffic are concerns Controllers typically groom read disturb errors Like DRAM refresh Increases erase/write frequency Application characteristics Music – reads high / writes very low Video – r high / writes very low Internet Cache – r high / writes low On airplanes Many consumers now have their own content viewing devices – do they need the airlines? Is there a way to offer more to consumers, especially with their own viewers Additional special content tie into airplane network access to electrical power, internet Should there be fixed embedded or removable storage for on-board airline entertainment? Is there a way to leverage personal and airline viewers and content in new and entertaining ways?

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• July, the 31 Days of SQL Server DMO’s – Day 25 (sys.dm_db_missing_index_details)

  - by Tamarick Hill

  The sys.dm_db_missing_index_details Dynamic Management View is used to return information about missing indexes on your SQL Server instances. These indexes are ones that the optimizer has identified as indexes it would like to use but did not have. You may also see these same indexes indicated in other tools such as query execution plans or the Database tuning advisor. Let’s execute this DMV so we can review the information it provides us. I do not have any missing index information for my AdventureWorks2012 database, but for the purposes of illustrating the result set of this DMV, I will present the results from my msdb database. SELECT * FROM sys.dm_db_missing_index_details The first column presented is the index_handle which uniquely identifies a particular missing index. The next two columns represent the database_id and the object_id for the particular table in question. Next is the ‘equality_columns’ column which gives you a list of columns (comma separated) that would be beneficial to the optimizer for equality operations. By equality operation I mean for any queries that would use a filter or join condition such as WHERE A = B. The next column, ‘inequality_columns’, gives you a comma separated list of columns that would be beneficial to the optimizer for inequality operations. An inequality operation is anything other than A = B. For example, “WHERE A != B”, “WHERE A > B”, “WHERE A < B”, and “WHERE A <> B” would all qualify as inequality. Next is the ‘included_columns’ column which list all columns that would be beneficial to the optimizer for purposes of providing a covering index and preventing key/bookmark lookups. Lastly is the ‘statement’ column which lists the name of the table where the index is missing. This DMV can help you identify potential indexes that could be added to improve the performance of your system. However, I will advise you not to just take the output of this DMV and create an index for everything you see. Everything listed here should be analyzed and then tested on a Development or Test system before implementing into a Production environment. For more information on this DMV, please see the below Books Online link: http://msdn.microsoft.com/en-us/library/ms345434.aspx Follow me on Twitter @PrimeTimeDBA

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• ODUG lands DotNetNuke guru Nik Kalyani as a speaker

  - by Brian Scarbeau

  If you are in the Orlando, FL area during the first week of May then you should head over to the Orlando DotNetNuke user group meeting. Nik Kalyani will be the speaker and you will learn a great deal from him. DotNetNuke Module Development with the MVP Pattern This session focuses on introducing attendees to the Model-View-Presenter pattern, support for which was recently introduced in the DotNetNuke Core. We'll start with a quick overview of the pattern, compare it to MVC, and then dive right into code. We will start with fundamentals and then develop a full-featured module using this pattern. In order to do justice to the pattern, we will use ASP.NET WebForms controls minimally and implement most of the UI using jQuery plug-ins. Finally, to increase audience participation (both present at the meeting and remote), we will use a hackathon-style model and allow anybody, anywhere to follow along with the presentation and code their own MVP-based solution that they can share online during or after the session. A URL with full instructions for the hackathon will be posted online a few days prior to the meeting. About Our Speaker Nik Kalyani is Co-founder and Strategic Advisor for DotNetNuke Corp., the company that manages the DotNetNuke Open Source project. Kalyani is also Founder and CEO of HyperCrunch. He is a technology entrepreneur with over 18 years of experience in the software industry. He is irrationally exuberant about technology, especially if it has anything to do with the Internet. HyperCrunch is his latest startup business that builds on his knowledge and experience from prior startups, two of them venture-funded. Kalyani is a creative tinkerer perpetually interested in looking around the corner and figuring out new and interesting ways to make the world a better place. An experienced web developer, he finds the business strategy and marketing aspects of the software business more exciting than writing code. When he does create software, his primary expertise is in creating products with compelling user experiences. Kalyani is most proficient with Microsoft technologies, but has no religious fanaticism about them. Kalyani has a bachelor’s degree in computer science from Western Michigan University. He is a frequent speaker at technology conferences and user group meetings. He lives in Mountain View, California with his wife and daughters. He blogs at http://www.kalyani.com and is @techbubble on Twitter.

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• Today's Links (6/20/2011)

  - by Bob Rhubart

  Why your security sucks | Eric Knorr A conversation with InfoWorld security expert Roger Grimes reveals why the latest burst of attacks is just business as usual. JDev 11g R2 - ADF BC Dependency Diagram Feature | Andrejus Baranovskis Oracle ACE Director Andrejus Baranovkis continues his exploration of JDeveloper 11g R2. Mobile Apps Put the Web in Their Rear-view Mirror | Charles Newark-French "Our analysis shows that, for the first time ever, daily time spent in mobile apps surpasses desktop and mobile web consumption," says Newark-French. "This stat is even more remarkable if you consider that it took less than three years for native mobile apps to achieve this level of usage, driven primarily by the popularity of iOS and Android platforms." Vivek Kundra, a public servant who gets stuff done | Craig Newmark Craigslist founder Craig Newmark bids farewell to the nation's first CIO. Weblogic, QBrowser and topics | Eric Elzinga Elzinga says: "Besides using the Weblogic Console to add subscribers to our topics we can also use QBrowser to browse queues and topics on your Weblogic Server." Java EE talks at JAX Conf | Arun Gupta Arun Gupta shares links to several Java EE presentations taking place at this week's Jax Conference in San Jose, CA. Development gotchas and silver bullets | Andy Mulholland Mulholland explains why "Software development has to change to fit with new business practices!" Oracle is Proud Sponsor of Gartner Security and Risk Management Summit 2011 | Troy Kitch Oracle will have a very strong presence at this year’s Gartner Security and Risk Management Summit 2011 in Washington D.C., June 20-23. Database Web Service using Toplink DB Provider | Vishal Jain "With JDeveloper 11gR2 you can now create database based web services using JAX-WS Provider," says Jain. Sample Chapter: A Fusion Applications Technical Overview An excerpt from "Managing Oracle Fusion Applications" by Richard Bingham, published by Oracle Press, May 2011. White Paper: Oracle Optimized Solution for Enterprise Cloud Infrastructure This paper provides recommendations and best practices for optimizing virtualization infrastructures when deploying the Oracle Enterprise Cloud Infrastructure. White paper: Oracle Optimized Solution for Lifecycle Content Management Authors Donna Harland and Nick Klosk illustrate how Oracle Enterprise Content Management Suite and Oracle’s Sun Storage Archive Manager work Oracle’s Sun hardware. Bay Area Coherence Special Interest Group Date: Thursday, July 21, 2011 Time: 4:30pm - 8:15pm ET - Note that Parking at 475 Sansome Closes at 8:30pm Location: Oracle Office,475 Sansome Street, San Francisco, CA Google Map Speakers: Chris Akker, Solutions Engineer, F5 Paul Cleary, Application Architect, Oracle Alexey Ragozin, Independent Consultant Brian Oliver, Oracle

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• Step Away From That Computer! You’re Not Qualified to Use It!

  - by Michael Sorens

  Most things tend to come with warnings and careful instructions these days, but sadly not one of the most ubiquitous appliances of all, your computer. If a chainsaw is missing its instructions, you’re well advised not to use it, even though you probably know roughly how it’s supposed to work. I confess, there are days when I feel the same way about computers. Long ago, during the renaissance of the computer age, it was possible to know everything about computers. But today, it is challenging to be fully knowledgeable even in one small area, and most people aren’t as savvy as they like to think. And, if I may borrow from Edwin Abbott Abbott’s classic Flatland, that includes me. And you. Need an example of what I mean? Take a look at almost any recent month’s batch of Windows updates. Just two quick questions for you: Do you need all of those updates? Is it safe to install all of those updates? I do software design and development for a living on Windows and the .NET platform, but I will be quite candid: I often have little clue what the heck some of those updates are going to do or why they are needed. So, if you do not know why they are needed or what they do, how do you know if they are safe? Of course, one can sidestep both questions by accepting Microsoft’s recommended Windows Update setting of “install updates automatically”. That leads you to infer that you need all of them (which is not always the case) and, more significantly, that they are safe. Quite safe. Ah, lest reality intrude upon such a pretty picture! Sadly, there is no such thing as risk-free software installation, and payloads from Windows Update are no exception. Earlier this year, a Windows Secrets Patch Watch article touted this headline: Keep this troublesome kernel update on hold. It discusses KB 2862330, a security update originally published more than 4 months earlier, and yet the article still recommends not installing it! Most people simply do not have the time, resources, or interest, to go about figuring out which updates to install or postpone or skip for safety reasons. Windows Secrets Patch Watch is the best service I have encountered for getting advice, but it is still no panacea and using the service effectively requires a degree of computer literacy that I still think is beyond a good number of people. Which brings us full circle: Step Away From That Computer! You’re Not Qualified to Use It!

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