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• 3 column layout with css display table, with first row having multiple rows?

  - by Damainman

  I am working on a new website which: Has 3 columns - Each Column being a cell First column has 3 rows (Logo, Nav, icons) - Has a Div with display: table which wraps arround 3 divs with display:table-row. Other two columns only have 1 row. With the middle column being the content area. However since this is my first time using display:table, I am running into some things that aren't so clear to me. I was trying to avoid floating divs. If I need multiple rows with one cell in each row per column, do I embed each cell in a row or just create each row and not declare cells. I understand that browsers automatically create the missing elements but I want to make sure I do this properly to avoid any side effects that might occur due to the browser automatically creating the missing elements. Edit: I think my brain is just over worked, I guess I can accomplish this by just using 3 divs in the first column instead of using a nested table div with the rows. This just popped into my head.

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• Stylecop 4.7.39.0 has been released

  - by TATWORTH

  Stylecop  4.7.38.0 has been released at http://stylecop.codeplex.com/releases/view/79972The release notes follow:Allow case sensitivity in the deprecated words and recognised words listStyleing fixes.Fix for documentation spelling checks inside nested xml nodes.Look for CustomDictionary.xml files in the folder of the cs file.Update the TabIndex in the spelling tab.Updating default deprecated words and their alternatives.Add support for specifying dictionary folders in the settings.StyleCop file. Like :Rename StyleCopViolationError to StyleCopHighlightingError and all associated types.Fix the Bulb Item for spelling mistakes to replace matching words correctly.Fix the spelling parser for strings beginning with $$THREADING FIX: Make StyleCop execute analysis in proces and not create 2 threads. Use Countdown Event when we move to .NET 4.Use the naming service for the Culture specified for the project. Pass the actual violation through to ReSharper.Ensure Registry access code works for VS2008 addins.Rollback Registry changes to ensure VS2008 plugin loads correctly.Adding support for preferred alternative words for spelling. Adding deprecated word support into Settings.StyleCop file. Spelling is only checked if Office 2010 is installed. Allow editing of deprecated words and their alternatives in the Settings editor.Adding new resource stringsAdding BulbItem and Quick fixes for spelling errors.Moving StringExtensions to common area.Styling fixes.Report all spelling errors found on a line.Start of 4.7.39.0 dev.

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• Live search/filter as you type in client approach

  - by Pinoniq

  As an exercise for myself to practice my JavaScript "skills" I'm trying to write a client-side filter. It should be able to filter "content blocks" as the user types. By "content block", I mean a list of DomElements that each contain at least one text node - it is possible that they contain more, and even a different amount of text nodes, nested inside other nodes, etc. I've thought of 2 approaches: On page initialization, scan all nodes and store all the text in some kind of Map or a tree. Simply iterate over every item and check whether it has the string to search/filter for. One could add performance here by caching, only filtering the current remaining items if text is added, etc. Obviously, if the number of nodes is really big, option 1 will take a while to build the 'index' but it will perform faster once it is built. Option 2 however will be available right on page load since no initialization is performed. But of course it will take longer to search. So my question is: what is the best approach here? And how would one implement 'caching' and/or 'index'?

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• Trying to sort the coefficients of the polynomial (z-a)(z-b)(z-c)...(z-n) into a vector

  - by pajamas

  So I have a factored polynomial of the form (z-a)(z-b)(z-c)...(z-n) for n an even positive integer. Thus the coefficient of z^k for 0 <= k < n will be the sum of all distinct n-k element products taken from the set {a,b,...,n} multiplied by (-1)^k, I hope that makes sense, please ask if you need more clarification. I'm trying to put these coefficients into a row vector with the first column containing the constant coefficient (which would be abc...n) and the last column containing the coefficient for z^n (which would be 1). I imagine there is a way to brute force this with a ton of nested loops, but I'm hoping there is a more efficient way. This is being done in Matlab (which I'm not that familiar with) and I know Matlab has a ton of algorithms and functions, so maybe its got something I can use. Can anyone think of a way to do this? Example: (z-1)(z-2)(z-3) = z^3 - (1 + 2 + 3)z^2 + (1*2 + 1*3 + 2*3)z - 1*2*3 = z^3 - 6z^2 + 11z - 6. Note that this example is n=3 odd, but n=4 would have taken too long to do by hand. Edit: Let me know if you think this would be better posted at TCS or Math Stack Exchange.

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• What is the best practice for reading a large number of custom settings from a text file?

  - by jawilmont

  So I have been looking through some code I wrote a few years ago for an economic simulation program. Each simulation has a large number of settings that can be saved to a file and later loaded back into the program to re-run the same/similar simulation. Some of the settings are optional or depend on what is being simulated. The code to read back the parameters is basically one very large switch statement (with a few nested switch statements). I was wondering if there is a better way to handle this situation. One line of the settings file might look like this: #RA:1,MT:DiscriminatoryPriceKDoubleAuction,OF:Demo Output.csv,QM:100,NT:5000,KP:0.5 //continues... And some of the code that would read that line: switch( Character.toUpperCase( s.charAt(0) ) ) { case 'R': randSeed = Integer.valueOf( s.substring(3).trim() ); break; case 'M': marketType = s.substring(3).trim(); System.err.println("MarketType: " + marketType); break; case 'O': outputFileName = s.substring(3).trim() ; break; case 'Q': quantityOfMarkets = Integer.valueOf( s.substring(3).trim() ); break; case 'N': maxTradesPerRound = Integer.valueOf( s.substring(3).trim() ); break; case 'K': kParameter = Float.valueOf( s.substring(3).trim() ); break; // continues... }

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• how to deal with controller mutations

  - by Milovan Zogovic

  During development process, things are constantly changing (especially in early phases). Requirements change, UI changes, everything changes. Pages that clearly belonged to specific controller, mutated to something completely different in the future. For example. Lets say that we have website for managing Projects. One page of the website was dedicated to managing existing, and inviting new members of specific project. Naturally, I created members controller nested under projects which had proper responsibility. Later in the development, it turned out that it was the only page that was "configuring the project" in some way, so additional functionalities were added to it: editing project description setting project as a default ... In other words, this page changed its primary responsibility from managing project members to managing project itself. Ideally, this page should be moved to "edit" action of "projects" controller. That would mean that all request and controller specs need to refactored too. Is it worth the effort? Should it be done? Personally, I am really starting to dislike the 1-1 relationship between views and controllers. Its common situation that we have 1 page (view) that handles 2 or more different resources. I think we should have views completely decoupled from controllers, but rails is giving us hard time to achieve this. I know that AJAX can be used to solve this issue, but I consider it an improvisation. Is there some other kind of architecture (other than MVC) that decouples views from controllers?

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• How to keep track of user images when using a CDN? [closed]

  - by Programmer

  We are considering moving our user profile images from the local server to the Rackspace CDN (Cloud Files). However, how do you keep track of where each user's profile image is located on the CDN? Wouldn't you have to store the CDN URL for each user image in the local Database and query it every time you display a user image? Isn't that slower than accessing a user image directly on the local server which requires no such DB query to retrieve since you already know where it is stored based on the user's User ID? What if a user has an album of pics? How would you keep track of all those images that belong just to that one user? What about the order of those pics? In the case of the Rackspace CDN, we're looking at using a Container for each individual user to help keep things more logically organized, but we don't know what the best way to track all of it is since the CDN provides a seemingly random URL for each image. To make matters worse, you can't even delete a non-empty Container belonging to a user when they delete their account, you actually have to delete each object inside the Container one-by-one before deleting the Container itself. It doesn't end there, you can't even have nested Containers or "sub-folders", and you can't rename a file (you must copy it with a new name and delete the old one manually). It just sounds so incredibly more complicated then we thought it would be, and it certainly does not feel "intuitive" compared to local storage, so we don't know what to do. Please help.

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• How do I get any number of links to space evenly? [migrated]

  - by Aerodynamo

  Alright, so here is the situation... Say I have a navbar for a site, and I allow users to change the number of links they want on this navbar. This means they could have 3, 5, 10, etc. What I want to do is make it so that if one link is up, it only takes up, say, 1/5th of the space on the navbar. If I weren't using borders, I might do something like: width: 18%; padding: 0 1%; However, I have two problems with this: 1) For 4 buttons, that's fine that it doesn't fill up the whole row. It would look ugly if the links were too wide... but when I have 6 or 7 buttons, it's got huge overflow! 2) Since I have borders, I can't use a percentage value for the borders or the widths, because I can't properly estimate how much of the percentage it will be. Now, I know I don't have to use percentage values, but what I would ideally prefer is that the first button is the smallest possible size necessary for all the other buttons to fit properly, meaning that if I have 950px and 6 links, the first link can be about 150px while the others are 160px... that's fine. I want all the other buttons on the navbar to be equally sized, regardless of how many links there are. I also need for it to accept a border... I figure the way to do this is to put a border in the nested div, so that way it doesn't effect the overall width of the button? This is all well and good, but I'm still plagued by the issue of not being able to design a dynamic site using the style I want if I can't get all the nav buttons to fit the width properly. Are there some js tricks I could use? I don't even know... Thanks

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• NoSQL with RavenDB and ASP.NET MVC - Part 1

  - by shiju

   A while back, I have blogged NoSQL with MongoDB, NoRM and ASP.NET MVC Part 1 and Part 2 on how to use MongoDB with an ASP.NET MVC application. The NoSQL movement is getting big attention and RavenDB is the latest addition to the NoSQL and document database world. RavenDB is an Open Source (with a commercial option) document database for the .NET/Windows platform developed  by Ayende Rahien.  Raven stores schema-less JSON documents, allow you to define indexes using Linq queries and focus on low latency and high performance. RavenDB is .NET focused document database which comes with a fully functional .NET client API  and supports LINQ. RavenDB comes with two components, a server and a client API. RavenDB is a REST based system, so you can write your own HTTP cleint API. As a .NET developer, RavenDB is becoming my favorite document database. Unlike other document databases, RavenDB is supports transactions using System.Transactions. Also it's supports both embedded and server mode of database. You can access RavenDB site at http://ravendb.netA demo App with ASP.NET MVCLet's create a simple demo app with RavenDB and ASP.NET MVC. To work with RavenDB, do the following steps. Go to http://ravendb.net/download and download the latest build.Unzip the downloaded file.Go to the /Server directory and run the RavenDB.exe. This will start the RavenDB server listening on localhost:8080You can change the port of RavenDB  by modifying the "Raven/Port" appSetting value in the RavenDB.exe.config file.When running the RavenDB, it will automatically create a database in the /Data directory. You can change the directory name data by modifying "Raven/DataDirt" appSetting value in the RavenDB.exe.config file.RavenDB provides a browser based admin tool. When the Raven server is running, You can be access the browser based admin tool and view and edit documents and index using your browser admin tool. The web admin tool available at http://localhost:8080The below is the some screen shots of web admin tool     Working with ASP.NET MVC  To working with RavenDB in our demo ASP.NET MVC application, do the following steps Step 1 - Add reference to Raven Cleint API In our ASP.NET MVC application, Add a reference to the Raven.Client.Lightweight.dll from the Client directory. Step 2 - Create DocumentStoreThe document store would be created once per application. Let's create a DocumentStore on application start-up in the Global.asax.cs. documentStore = new DocumentStore { Url = "http://localhost:8080/" }; documentStore.Initialise(); The above code will create a Raven DB document store and will be listening the server locahost at port 8080    Step 3 - Create DocumentSession on BeginRequest   Let's create a DocumentSession on BeginRequest event in the Global.asax.cs. We are using the document session for every unit of work. In our demo app, every HTTP request would be a single Unit of Work (UoW). BeginRequest += (sender, args) =>   HttpContext.Current.Items[RavenSessionKey] = documentStore.OpenSession(); Step 4 - Destroy the DocumentSession on EndRequest  EndRequest += (o, eventArgs) => {     var disposable = HttpContext.Current.Items[RavenSessionKey] as IDisposable;     if (disposable != null)         disposable.Dispose(); };  At the end of HTTP request, we are destroying the DocumentSession  object.The below  code block shown all the code in the Global.asax.cs  private const string RavenSessionKey = "RavenMVC.Session"; private static DocumentStore documentStore;   protected void Application_Start() { //Create a DocumentStore in Application_Start //DocumentStore should be created once per application and stored as a singleton. documentStore = new DocumentStore { Url = "http://localhost:8080/" }; documentStore.Initialise(); AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); //DI using Unity 2.0 ConfigureUnity(); }   public MvcApplication() { //Create a DocumentSession on BeginRequest   //create a document session for every unit of work BeginRequest += (sender, args) =>     HttpContext.Current.Items[RavenSessionKey] = documentStore.OpenSession(); //Destroy the DocumentSession on EndRequest EndRequest += (o, eventArgs) => { var disposable = HttpContext.Current.Items[RavenSessionKey] as IDisposable; if (disposable != null) disposable.Dispose(); }; }   //Getting the current DocumentSession public static IDocumentSession CurrentSession {   get { return (IDocumentSession)HttpContext.Current.Items[RavenSessionKey]; } }  We have setup all necessary code in the Global.asax.cs for working with RavenDB. For our demo app, Let’s write a domain class  public class Category {       public string Id { get; set; }       [Required(ErrorMessage = "Name Required")]     [StringLength(25, ErrorMessage = "Must be less than 25 characters")]     public string Name { get; set;}     public string Description { get; set; }   } We have created simple domain entity Category. Let's create repository class for performing CRUD operations against our domain entity Category.  public interface ICategoryRepository {     Category Load(string id);     IEnumerable<Category> GetCategories();     void Save(Category category);     void Delete(string id);       }    public class CategoryRepository : ICategoryRepository {     private IDocumentSession session;     public CategoryRepository()     {             session = MvcApplication.CurrentSession;     }     //Load category based on Id     public Category Load(string id)     {         return session.Load<Category>(id);     }     //Get all categories     public IEnumerable<Category> GetCategories()     {         var categories= session.LuceneQuery<Category>()                 .WaitForNonStaleResults()             .ToArray();         return categories;       }     //Insert/Update category     public void Save(Category category)     {         if (string.IsNullOrEmpty(category.Id))         {             //insert new record             session.Store(category);         }         else         {             //edit record             var categoryToEdit = Load(category.Id);             categoryToEdit.Name = category.Name;             categoryToEdit.Description = category.Description;         }         //save the document session         session.SaveChanges();     }     //delete a category     public void Delete(string id)     {         var category = Load(id);         session.Delete<Category>(category);         session.SaveChanges();     }        } For every CRUD operations, we are taking the current document session object from HttpContext object. session = MvcApplication.CurrentSession; We are calling the static method CurrentSession from the Global.asax.cs public static IDocumentSession CurrentSession {     get { return (IDocumentSession)HttpContext.Current.Items[RavenSessionKey]; } }  Retrieve Entities  The Load method get the single Category object based on the Id. RavenDB is working based on the REST principles and the Id would be like categories/1. The Id would be created by automatically when a new object is inserted to the document store. The REST uri categories/1 represents a single category object with Id representation of 1.   public Category Load(string id) {    return session.Load<Category>(id); } The GetCategories method returns all the categories calling the session.LuceneQuery method. RavenDB is using a lucen query syntax for querying. I will explain more details about querying and indexing in my future posts.   public IEnumerable<Category> GetCategories() {     var categories= session.LuceneQuery<Category>()             .WaitForNonStaleResults()         .ToArray();     return categories;   } Insert/Update entityFor insert/Update a Category entity, we have created Save method in repository class. If  the Id property of Category is null, we call Store method of Documentsession for insert a new record. For editing a existing record, we load the Category object and assign the values to the loaded Category object. The session.SaveChanges() will save the changes to document store.  //Insert/Update category public void Save(Category category) {     if (string.IsNullOrEmpty(category.Id))     {         //insert new record         session.Store(category);     }     else     {         //edit record         var categoryToEdit = Load(category.Id);         categoryToEdit.Name = category.Name;         categoryToEdit.Description = category.Description;     }     //save the document session     session.SaveChanges(); }  Delete Entity  In the Delete method, we call the document session's delete method and call the SaveChanges method to reflect changes in the document store.  public void Delete(string id) {     var category = Load(id);     session.Delete<Category>(category);     session.SaveChanges(); }  Let’s create ASP.NET MVC controller and controller actions for handling CRUD operations for the domain class Category  public class CategoryController : Controller { private ICategoryRepository categoyRepository; //DI enabled constructor public CategoryController(ICategoryRepository categoyRepository) {     this.categoyRepository = categoyRepository; } public ActionResult Index() {         var categories = categoyRepository.GetCategories();     if (categories == null)         return RedirectToAction("Create");     return View(categories); }   [HttpGet] public ActionResult Edit(string id) {     var category = categoyRepository.Load(id);         return View("Save",category); } // GET: /Category/Create [HttpGet] public ActionResult Create() {     var category = new Category();     return View("Save", category); } [HttpPost] public ActionResult Save(Category category) {     if (!ModelState.IsValid)     {         return View("Save", category);     }           categoyRepository.Save(category);         return RedirectToAction("Index");     }        [HttpPost] public ActionResult Delete(string id) {     categoyRepository.Delete(id);     var categories = categoyRepository.GetCategories();     return PartialView("CategoryList", categories);      }        }  RavenDB is an awesome document database and I hope that it will be the winner in .NET space of document database world.  The source code of demo application available at http://ravenmvc.codeplex.com/

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• SQLAuthority News – Monthly Roundup of Best SQL Posts

  - by pinaldave

  After receiving lots of requests from different readers for long time I have decided to write first monthly round up. If all of you like it I will continue writing the same every month. In fact, I really like the idea as I was able to go back and read all of my posts written in this month. This month was started with answering one of the most common question asked me to about What is Adventureworks? Many of you know the answer but to the surprise more number of the reader did not know the answer. There were few extra blog post which were in the same line as following. SQL SERVER – The Difference between Dual Core vs. Core 2 Duo SQLAuthority News – Wireless Router Security and Attached Devices – Complex Password SQL SERVER – DATE and TIME in SQL Server 2008 DMVs are also one of the most handy tools available in SQL Server, I have written following blog post where I have used DMV in scripts. SQL SERVER – Get Latest SQL Query for Sessions – DMV SQL SERVER – Find Most Expensive Queries Using DMV SQL SERVER – List All the DMV and DMF on Server I was able to write two follow-up of my earlier series where I was finding the size of the indexes using different SQL Scripts. And in fact one of the article Powershell is used as well. This was my very first attempt to use Powershell. SQL SERVER – Size of Index Table for Each Index – Solution 2 SQL SERVER – Size of Index Table for Each Index – Solution 3 – Powershell SQL SERVER – Four Posts on Removing the Bookmark Lookup – Key Lookup Without realizing I wrote series of the blog post on disabled index here is its complete list. I plan to write one more follow-up list on the same. SQL SERVER – Disable Clustered Index and Data Insert SQL SERVER – Understanding ALTER INDEX ALL REBUILD with Disabled Clustered Index SQL SERVER – Disabled Index and Update Statistics Two special post which I found very interesting to write are as following. SQL SERVER – SHRINKFILE and TRUNCATE Log File in SQL Server 2008 SQL SERVER – Simple Example of Snapshot Isolation – Reduce the Blocking Transactions In personal adventures, I won the Community Impact Award for Last Year from Microsoft. Please leave your comment about how can I improve this round up or what more details I should include in the same. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQLAuthority News, T SQL, Technology

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• Force.com presents Database.com SQL Azure/Amazon RDS unfazed

  - by Sarang

  At the DreamForce 2010 event in San Francisco Force.com unveiled their next big thing in the Fat SaaS portfolio "Database.com".  I am still wondering how would they would've shelled out for that domain name. Now why would a already established SaaS player foray into a key building block like Database? Potentially allowing enterprises to build apps that do not utilize the Force.com stack! One key reason is being seen as the Fat SaaS player with evey trick in the SaaS space under his belt. You want CRM come hither, want a custom development PaaS like solution welcome home (VMForce), want all your apps to talk to a cloud DB and minimize latency by having it reside closer to you cloud apps? You've come to the right place sire! Other is potentially killing foray of smaller DB players like Oracle (Not surprisingly, the Database.com offering is a highly customized and scalable Oracle database) from entering the lucrative SaaS db marketplace. The feature set promised looks great out of the box for someone who likes to visualize cool new architectures. The ground realities are certainly going to be a lot different considering the SOAP/REST style access patterns in lieu of the comfortable old shoe of SQL. Microsoft suffered heavily with SDS (SQL Data Services) offering in early 2009 and had to pull the plug on the product only to reintroduce as a simple SQL Server in the cloud, SQL Windows Azure. Though MSFT is playing cool by providing OData semantics to work with SQL Windows Azure satisfying atleast some needs of the Web-Style to a DB. The other features like Social data models including Profiles, Status updates, feeds seem interesting as well. (Although I beleive social is just one of the aspects of large scale collaborative computing). All these features start "Free" for devs its a good news but the good news stops here. The overall pricing model of $ per Users per Transactions / Month is highly disproportionate compared to Amazon RDS (Based on MySQL) or SQL Windows Azure (Based on MSSQL). Roger Jennigs of Oakleaf did an interesting comparo based on 3, 10, 100, 500 users and it turns out that Database.com going by current understanding is way too expensive for the services on offer. The offering may not impact the decision for DotNet shops mulling their cloud stategy or even some Java/MySQL shops thinking about Amazon RDS, however for enterprises having already invested in other force.com offerings this could be a very important piece in the cloud strategy jigsaw. One which would address a key cloud DB issue of "Latency" for them at least it will help having the DB in the neighborhood. The tooling and "SQL like" access provider drivers (Think ODBC/JDBC) will be available later this year. Progress Software has already announced their JDBC driver stack for Database.com. It remains to be seen how effective the overall solutions proves to be in the longer run but for starts its a important decision towards consolidating Force.com's already strong positioning in the SaaS space. As always contrasting views are welcome! :)

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• SQL SERVER – WRITELOG – Wait Type – Day 17 of 28

  - by pinaldave

  WRITELOG is one of the most interesting wait types. So far we have seen a lot of different wait types, but this log type is associated with log file which makes it interesting to deal with. From Book On-Line: WRITELOG Occurs while waiting for a log flush to complete. Common operations that cause log flushes are checkpoints and transaction commits. WRITELOG Explanation: This wait type is usually seen in the heavy transactional database. When data is modified, it is written both on the log cache and buffer cache. This wait type occurs when data in the log cache is flushing to the disk. During this time, the session has to wait due to WRITELOG. I have recently seen this wait type’s persistence at my client’s place, where one of the long-running transactions was stopped by the user causing it to roll back. In the future, I will see if I could re-create this situation once again on my machine to validate the relation. Reducing WRITELOG wait: There are several suggestions to reduce this wait stats: Move Transaction Log to Separate Disk from mdf and other files. Avoid cursor-like coding methodology and frequent committing of statements. Find the most active file based on IO stall time based on the script written over here. You can also use fn_virtualfilestats to find IO-related issues using the script mentioned over here. Check the IO-related counters (PhysicalDisk:Avg.Disk Queue Length, PhysicalDisk:Disk Read Bytes/sec and PhysicalDisk :Disk Write Bytes/sec) for additional details. Read about them over here. There are two excellent resources by Paul Randal, I suggest you understand the subject from those videos. The links to videos are here and here. Note: The information presented here is from my experience and there is no way that I claim it to be accurate. I suggest reading Book OnLine for further clarification. All the discussion of Wait Stats in this blog is generic and varies from system to system. It is recommended that you test this on a development server before implementing it to a production server. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: Pinal Dave, PostADay, SQL, SQL Authority, SQL Query, SQL Scripts, SQL Server, SQL Tips and Tricks, SQL Wait Stats, SQL Wait Types, T SQL, Technology

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• [SQLServer JDBC Driver][SQLServer]Could not find stored procedure 'master..xp_jdbc_open2'.

  - by Vijaya Moderator -Oracle

  When connecting to MS SQL Server Database via Weblogic Datasource and using XA jdbc driver, the following error is thrown. <Jun 3, 2014 5:16:49 AM PDT> <Error> <Console> <BEA-240003> <Console encountered the following error java.sql.SQLException: [FMWGEN][SQLServer JDBC Driver][SQLServer]Could not find stored procedure 'master..xp_jdbc_open2'. at weblogic.jdbc.sqlserverbase.ddb_.b(Unknown Source)at weblogic.jdbc.sqlserverbase.ddb_.a(Unknown Source)at weblogic.jdbc.sqlserverbase.ddb9.b(Unknown Source)at weblogic.jdbc.sqlserverbase.ddb9.a(Unknown Source)at weblogic.jdbc.sqlserver.tds.ddr.v(Unknown Source)at weblogic.jdbc.sqlserver.tds.ddr.a(Unknown Source)at weblogic.jdbc.sqlserver.tds.ddq.a(Unknown Source)at weblogic.jdbc.sqlserver.tds.ddr.a(Unknown Source)at weblogic.jdbc.sqlserver.ddj.m(Unknown Source)at weblogic.jdbc.sqlserverbase.ddel.e(Unknown Source)at weblogic.jdbc.sqlserverbase.ddel.a(Unknown Source)  The cause behind the issue is that  the MS SQL Server was not installed with the Stored procedures to enable JTA/XA Solution To connect to SQL Server via XA Driver from WLS Datasource you need to install Stored Procedures for JTATo use JDBC distributed transactions through JTA, your system administrator should use the following procedure to install Microsoft SQL Server JDBC XA procedures. This procedure must be repeated for each MS SQL Server installation that will be involved in a distributed transaction.To install stored procedures for JTA:1. Copy the appropriate sqljdbc.dll and instjdbc.sql files from the WL_HOME\server\lib directory to the SQL_Server_Root/bin directory of the MS SQL Server database server, where WL_HOME is the directory in which WebLogic server is installed, typically c:\Oracle\Middleware\wlserver_10.x.  Note:  If you are installing stored procedures on a database server with multiple Microsoft SQL Server instances, each running SQL Server instance must be able to locate the sqljdbc.dll file.Therefore the sqljdbc.dll file needs to be anywhere on the global PATH or on the application-specific path. For the application-specific path, place the sqljdbc.dll file into the :\Program Files\Microsoft SQL Server\MSSQL$\Binn directory for each instance. 2. From the database server, use the ISQL utility to run the instjdbc.sql script. As a precaution, have your system administrator back up the master database before running instjdbc.sql. At a command prompt, use the following syntax to run instjdbc.sql:  ISQL -Usa -Psa_password -Sserver_name -ilocation\instjdbc.sql  where:  sa_password is the password of the system administrator.  server_name is the name of the server on which SQL Server resides.  location is the full path to instjdbc.sql. (You copied this script to the SQL_Server_Root/bin directory in step 1.)  The instjdbc.sql script generates many messages. In general, these messages can be ignored; however, the system administrator should scan the output for any messages that may indicate an execution error. The last message should indicate that instjdbc.sql ran successfully. The script fails when there is insufficient space available in the master database to store the JDBC XA procedures or to log changes to existing procedures.

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• SQLAuthority News – SQL Server 2012 – Microsoft Learning Training and Certification

  - by pinaldave

  Here is the conversion I had right after I had posted my earlier blog post about Download Microsoft SQL Server 2012 RTM Now. Rajesh: So SQL Server is available for me to download? Pinal: Yes, sure check the link here. Rajesh: It is trial do you know when it will be available for everybody? Pinal: I think you mean General Availability (GA) which is on April 1st, 2012. Rajesh: I want to have head start with SQL Server 2012 examination and I want to know every single Exam 70-461: Querying Microsoft SQL Server 2012 This exam is intended for SQL Server database administrators, implementers, system engineers, and developers with two or more years of experience who are seeking to prove their skills and knowledge in writing queries. Exam 70-462: Administering Microsoft SQL Server 2012 Databases This exam is intended for Database Professionals who perform installation, maintenance, and configuration tasks as their primary areas of responsibility. They will often set up database systems and are responsible for making sure those systems operate efficiently. Exam 70-463: Implementing a Data Warehouse with Microsoft SQL Server 2012 The primary audience for this exam is Extract Transform Load (ETL) and Data Warehouse Developers.  They are most likely to focus on hands-on work creating business intelligence (BI) solutions including data cleansing, ETL, and Data Warehouse implementation. Exam 70-464: Developing Microsoft SQL Server 2012 Databases This exam is intended for database professionals who build and implement databases across an organization while ensuring high levels of data availability. They perform tasks including creating database files, creating data types and tables,  planning, creating, and optimizing indexes, implementing data integrity, implementing views, stored procedures, and functions, and managing transactions and locks. Exam 70-465: Designing Database Solutions for Microsoft SQL Server 2012 This exam is intended for database professionals who design and build database solutions in an organization.  They are responsible for the creation of plans and designs for database structure, storage, objects, and servers. Exam 70-466: Implementing Data Models and Reports with Microsoft SQL Server 2012 The primary audience for this exam is BI Developers.  They are most likely to focus on hands-on work creating the BI solution including implementing multi-dimensional data models, implementing and maintaining OLAP cubes, and creating information displays used in business decision making Exam 70-467: Designing Business Intelligence Solutions with Microsoft SQL Server 2012 The primary audience for this exam is the BI Architect.  BI Architects are responsible for the overall design of the BI infrastructure, including how it relates to other data systems in use. Looking at Rajesh’s passion, I am motivated too! I may want to start attempting the exams in near future. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Download, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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• American Modern Insurance Group recognized at 2010 INN VIP Best Practices Awards

  - by [email protected]

  Below: Helen Pitts (right), Oracle Insurance, congratulates Bruce Weisgerber, Munich Re, as he accepts a VIP Best Practices Award on behalf of American Modern Insurance Group.     Oracle Insurance Senior Product Marketing Manager Helen Pitts is attending the 2010 ACORD LOMA Insurance Forum this week at the Mandalay Bay Resort in Las Vegas, Nevada, and will be providing updates from the show floor. This is one of my favorite seasons of the year--insurance trade show season. It is a time to reconnect with peers, visit with partners, make new industry connections, and celebrate our customers' achievements. It's especially meaningful when we can share the experience of having one of our Oracle Insurance customers recognized for being an innovator in its business and in the industry. Congratulations to American Modern Insurance Group, part of the Munich Re Group. American Modern earned an Insurance Networking News (INN) 2010 VIP Best Practice Award yesterday evening during the 2010 ACORD LOMA Insurance Forum. The award recognizes an insurer's best practice for use of a specific technology and the role, if feasible, that ACORD data standards played as a part of their business and technology. American Modern received an Honorable Mention for leveraging the Oracle Documaker enterprise document automation solution to: Improve the quality of communications with customers in high value, high-touch lines of business Convert thousands of page elements or "forms" from their previous system, with near pixel-perfect accuracy Increase efficiency and reusability by storing all document elements (fonts, logos, approved wording, etc.) in one place Issue on-demand documents, such as address changes or policy transactions to multiple recipients at once Consolidate all customer communications onto a single platform Gain the ability to send documents to multiple recipients at once, further improving efficiency Empower agents to produce documents in real time via the Web, such as quotes, applications and policy documents, improving carrier-agent relationships Munich Re's Bruce Weisgerber accepted the award on behalf of American Modern from Lloyd Chumbly, vice president of standards at ACORD. In a press release issued after the ceremony Chumbly noted, "This award embodies a philosophy of efficiency--working smarter with standards, these insurers represent the 'best of the best' as chosen by a body of seasoned insurance industry professionals." We couldn't agree with you more, Lloyd. Congratulations again to American Modern on your continued innovation and success. You're definitely a VIP in our book! To learn more about how American Modern is putting its enterprise document automation strategy into practice, click here to read a case study. Helen Pitts is senior product marketing manager for Oracle Insurance.

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• Oracle Releases New Mainframe Re-Hosting in Oracle Tuxedo 11g

  - by Jason Williamson

  I'm excited to say that we've released our next generation of Re-hosting in 11g. In fact I'm doing some hands-on labs now for our Systems Integrators in Italy in a couple of weeks and targeting Latin America next month. If you are an SI, or Rehosting firm and are looking to become an Oracle Partner or get a better understanding of Tuxedo and how to use the workbench for rehosting...drop me a line. Oracle Tuxedo Application Runtime for CICS and Batch 11g provides a CICS API emulation and Batch environment that exploits the full range of Oracle Tuxedo's capabilities. Re-hosted applications run in a multi-node, grid environment with centralized production control. Also, enterprise integration of CICS application services benefits from an open and SOA-enabled framework. Key features include: CICS Application Runtime: Can run IBM CICS applications unchanged in an application grid, which enables the distribution of large workloads across multiple processors and nodes. This simplifies CICS administration and can scale to over 100,000 users and over 50,000 transactions per second. 3270 Terminal Server: Protects business users from change through support for tn3270 terminal emulation. Distributed CICS Resource Management: Simplifies deployment and administration by allowing customers to run CICS regions in a distributed configuration. Batch Application Runtime: Provides robust IBM JES-like job management that enables local or remote job submissions. In addition, distributed batch initiators can enable parallelization of jobs and support fail-over, shortening the batch window and helping to meet stringent SLAs. Batch Execution Environment: Helps to run IBM batch unchanged and also supports JCL functionality and all common batch utilities. Oracle Tuxedo Application Rehosting Workbench 11g provides a set of automated migration tools integrated around a central repository. The tools provide high precision which results in very low error rates and the ability to handle large applications. This enables less expensive, low-risk migration projects. Key capabilities include: Workbench Repository and Cataloguer: Ensures integrity of the migrated application assets through full dependency checking. The Cataloguer generates and maintains all relevant meta-data on source and target components. File Migrator: Supports reliable migration of datasets and flat files to an ISAM or Oracle Database 11g. This is done through the automated migration utilities for data unloading, reloading and validation. It also generates logical access functions to shield developers from data repository changes. DB2 Migrator: Similarly, this tool automates the migration of DB2 schema and data to Oracle Database 11g. COBOL Migrator: Supports migration of IBM mainframe COBOL assets (OLTP and Batch) to open systems. Adapts programs for compiler dialects and data access variations. JCL Migrator: Supports migration of IBM JCL jobs to a Tuxedo ART environment, maintaining the flow and characteristics of batch jobs.

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• Build Mobile App for E-Business Suite Using SOA Suite and ADF Mobile

  - by Michelle Kimihira

  With the upcoming release of Oracle ADF Mobile, I caught up with Srikant Subramaniam, Senior Principal Product Manager, Oracle Fusion Middleware post OpenWorld to learn about the cool hands-on lab at OpenWorld.  For those of you who missed it, you will want to keep reading... Author: Srikant Subramaniam, Senior Principal Product Manager,Oracle Fusion Middleware Oracle ADF Mobile enables rapid and declarative development of native on-device mobile applications. These native applications provide a richer experience for smart devices users running Apple iOS or other mobile platforms. Oracle ADF Mobile protects Oracle customers from technology shifts by adopting a metadata-based development framework that enables developer to develop one app (using Oracle JDeveloper), and deploy to multiple device platforms (starting with iOS and Android).  Oracle ADF Mobile also enables IT organizations to leverage existing expertise in web-based and Java development by adopting a hybrid application architecture that brings together HTML5, Java, and device native container: HTML5 allows developer to deliver device-native user experiences while maintaining portability across different platforms Java allows developers to create modules to support business logic and data services Native container provides integration into device services such as camera, contacts, etc All these technologies are packaged into a development framework that supports declarative application development through Oracle JDeveloper. ADF Mobile also provides out of box integratoin with key Fusion Middleware components, such as SOA Suite and Business Process Management (BPM). Oracle Fusion Middleware provides the necessary infrastructure to extend business processes and services to the mobile device -- enabling the mobile user to participate in human tasks – without the additional “mobile middleware” layer. When coupled with Oracle SOA Suite, this combination can execute business transactions on Oracle E-Business Suite (or any Oracle Application). Demo Use Case: Mobile E-Business Suite (iExpense) Approvals Using an employee expense approval scenario, we illustrate how to use Oracle Fusion Middleware and Oracle ADF Mobile to build application extensions that integrate intelligently with Oracle Applications (For example, E-Business Suite). Building these extensions using Oracle Fusion middleware and ADF makes modifications simple, quick to implement, and easy to maintain/upgrade. As described earlier, this approach also extends Fusion Middleware to mobile users without the additional "Mobile Middleware" layer. The approver is presented with a list of expense reports that have been submitted for approval. These expense reports are retrieved from the backend E-Business Suite and displayed on the mobile device. Approval (or rejection) of the expense report kicks off the workflow in E-Business Suite and takes it to completion. The demo also shows how to integrate with native device services such as email, contacts, BI dashboards as well as a prebuilt PDF viewer (this is especially useful in the expense approval scenario, as there is often a need for the approver to access the submitted receipts). Summary Oracle recommends Fusion Middleware as the application integration platform to deliver critical enterprise data and processes to mobile applications.  Pre-built connectors between Fusion Middleware and Applications greatly accelerates the integration process.  Instead of building individual integration points between mobile applications and individual enterprise applications, Oracle Fusion Middleware enables IT organizations to leverage a common platform to support both desktop and mobile application.  Additional Information Product Information on Oracle.com: Oracle Fusion Middleware Follow us on Twitter and Facebook Subscribe to our regular Fusion Middleware Newsletter

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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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• 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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• When done is not done

  - by Tony Davis

  Most developers and DBAs will know what it’s like to be asked to do "a quick tidy up" on a project that, on closer inspection, turns out to be a barely working prototype: as the cynical programmer says, "when you’re told that a project is 90% done, prepare for the next 90%". It is easy to convince a layperson that an application is complete just by using test data, and sticking to the workflow that the development team has implemented and tested. The application is ‘done’ only in the sense that the anticipated paths through the software features, using known data, are fully supported. Reality often strikes only when testers reveal its strange and erratic behavior in response to behavior from the end user that strays from the "ideal". The problem is this: how do we measure progress, accurately and objectively? Development methods such as Scrum or Kanban, when implemented rigorously, can mitigate these problems for developers, to some extent. They force a team to progress one small, but complete feature at a time, to find out how long it really takes for this feature to be "done done"; in other words done to the point where its performance and scalability is understood, it is tested for all conceivable edge cases and doesn’t break…it is ready for prime time. At that point, the team has a much more realistic idea of how long it will take them to really complete all the remaining features, and so how far away the end is. However, it is when software crosses team boundaries that we feel the limitations of such techniques. No matter how well drilled the development team is, problems will still arise if they don’t deploy frequently to a production environment. If they work feverishly for months on end before finally tossing the finished piece of software over the fence for the DBA to deploy to the "real world" then once again will dawn the realization that "done done" is still out of reach, as the DBA uncovers poorly code transactions, un-scalable queries, inefficient caching, and so on. By deploying regularly, end users will also have a much earlier opportunity to tell you how far what you implemented strayed from what they wanted. If you have a tale to tell, anonymized of course, of a "quick polish" project that turned out to be anything but, and what the major problems were, please do share it. Cheers, Tony.

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• Silverlight Cream for April 27, 2010 -- #849

  - by Dave Campbell

  In this Issue: Mike Snow, Kunal Chowdhury, Giorgetti Alessandro, Alexander Strauss, Corey Schuman, Kirupa, John Papa, Miro Miroslavov, Michael Washington, and Jeremy Likness. Shoutouts: Erik Mork and crew have posted their latest This Week In Silverlight April 23 2010 The Silverlight Team announced Microsoft releases Silverlight-powered Windows Intune beta Jesse Liberty has posted his UK and Ireland Slides and Links The Expression Blend and Design Blog reports a Minor Update to The Expression Blend 4 Release Candidate From SilverlightCream.com: Silverlight Tip of the Day #6 – Toast Notifications Mike Snow has Tip #6 up today and it's about Toast notifications in OOB apps: Restrictions, creation, showing, and the code. Silverlight Tutorials Chapter 2: Introduction to Silverlight Application Development Part 2 of Kunal Chowdhury's Introductory tutorial set is up ... he's covering how to create a Silverlight project, what's contained in it, and creating a User Control. Silverlight, M-V-VM ... and IoC - part 3 Giorgetti Alessandro has part 3 of his Silverlight, IOC, and MVVM series up... this one with an example using the code discussed previously. The project is on CodePlex, and he's not done with the series. Application Partitioning with MEF, Silverlight and Windows Azure – Part I Alexander Strauss is discussing Silverlight and MEF for loosely-coupled and partitioned apps. He's also using Azure in this discussion. geekSpeak Recording - Five Key Developer Features in Expression Blend with Corey Schuman Check out the latest geekSpeak on Channel 9 where Corey Schuman talks about the 5 key Developer Features in Expression Blend that will improve your productivity. Using the ChangePropertyAction Kirupa is discussing and demonstrating ChangePropertyAction. Check out the demo near the top of the post, then read how to do it, and download the source. 3 Free Silverlight Demos John Papa blogged about the 2 demos (with source) that have been updated to SL4, and a new one all by Microsoft Luminaries Karen Corby, Adam Kinney, Mark Rideout, Jesse Bishop, and John Papa: "ScrapBook", "HTML and Video Puzzle", and "Rich Notepad". Floating Visual Elements I like Miro Miroslavov's comment: "every Silverlight application “must” have some objects floating around in a quite 3D manner" :) ... well they do that on the CompletIT site, and this is part 2 of their explanation of how all that goodness works. MVVM – A Total Design Change Of Your Application With No Code With some Blend goodness, Michael Washington completely reorganizes the UI of an MVVM application without touching any code ... project included MVVM with Transaction and View Locator Example Jeremy Likness responded to reader requests and has an example up, with explanation, of marrying his last two posts: transactions with MVVM and View Model Locator. 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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• Keep website and webservices warm with zero coding

  - by oazabir

  If you want to keep your websites or webservices warm and save user from seeing the long warm up time after an application pool recycle, or IIS restart or new code deployment or even windows restart, you can use the tinyget command line tool, that comes with IIS Resource Kit, to hit the site and services and keep them warm. Here’s how: First get tinyget from here. Download and install the IIS 6.0 Resource Kit on some PC. Then copy the tinyget.exe from “c:\program files…\IIS 6.0 ResourceKit\Tools'\tinyget” to the server where your IIS 6.0 or IIS 7 is running. Then create a batch file that will hit the pages and webservices. Something like this: SET TINYGET=C:\Program Files (x86)\IIS Resources\TinyGet\tinyget.exe"%TINYGET%" -srv:dropthings.omaralzabir.com -uri:http://dropthings.omaralzabir.com/ -status:200"%TINYGET%" -srv:dropthings.omaralzabir.com -uri:http://dropthings.omaralzabir.com/WidgetService.asmx?WSDL - status:200 First I am hitting the homepage to keep the webpage warm. Then I am hitting the webservice URL with ?WSDL parameter, which allows ASP.NET to compile the service if not already compiled and walk through all the operations and reflect on them and thus loading all related DLLs into memory and reducing the warmup time when hit. Tinyget gets the servers name or IP in the –srv parameter and then the actual URI in the –uri. I have specified what’s the HTTP response code to expect in –status parameter. It ensures the site is alive and is returning http 200 code. Besides just warming up a site, you can do some load test on the site. Tinyget can run in multiple threads and run loops to hit some URL. You can literally blow up a site with commands like this: "%TINYGET%" -threads:30 -loop:100 -srv:google.com -uri:http://www.google.com/ -status:200 Tinyget is also pretty useful to run automated tests. You can record http posts in a text file and then use it to make http posts to some page. Then you can put matching clause to check for certain string in the output to ensure the correct response is given. Thus with some simple command line commands, you can warm up, do some transactions, validate the site is giving off correct response as well as run a load test to ensure the server performing well. Very cheap way to get a lot done.

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• What Would a CyberWar Do To Your Business?

  - by Brian Dayton

  In mid-February the Bipartisan Policy Center in the United States hosted Cyber ShockWave, a simulation of how the country might respond to a catastrophic cyber event. An attack takes place, they can't isolate where it came from or who did it, simulated press reports and market impacts...and the participants in the exercise have to brief the President and advise him/her on what to do. Last week, Former Department of Homeland Security Secretary Michael Chertoff who participated in the exercise summarized his findings in Federal Computer Weekly. The article, given FCW's readership and the topic is obviously focused on the public sector and US Federal policies. However, it touches on some broader issues that impact the private sector as well--which are applicable to any government and country/region-- such as: ·         How would the US (or any) government collaborate to identify and defeat such an attack? Chertoff calls this out as a current gap. How do the public and private sector collaborate today? How would the massive and disparate collection of agencies and companies act together in a crunch? ·         What would the impact on industries and global economies be? Chertoff, and a companion article in Government Computer News, only touch briefly on the subject--focusing on the impact on capital markets. "There's no question this has a disastrous impact on the economy," said Stephen Friedman, former director of the National Economic Council under President George W. Bush who played the role of treasury secretary. "You have financial markets shut down at this point, ordinary transactions are dramatically depleted, there's no question that this has a major impact on consumer confidence." That Got Me Thinking ·         How would it impact Oracle's customers? I know they have business continuity plans--is this one of their scenarios? What if it's not? How would it impact manufacturing lines, ATM networks, customer call centers... ·         How would it impact me and the companies I rely on? The supermarket down the street, my Internet Service Provider, the service station where I bought gas last night.   I sure don't have any answers, and neither do Chertoff or the participants in the exercise. "I have to tell you that ... we are operating in a bit of unchartered territory." said Jamie Gorelick, a former deputy attorney general who played the role of attorney general in the exercise.    But it is a good thing that governments and businesses are considering this scenario and doing what they can to prevent it from happening.

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• Architecture strategies for a complex competition scoring system

  - by mikewassmer

  Competition description: There are about 10 teams competing against each other over a 6-week period. Each team's total score (out of a 1000 total available points) is based on the total of its scores in about 25,000 different scoring elements. Most scoring elements are worth a small fraction of a point and there will about 10 X 25,000 = 250,000 total raw input data points. The points for some scoring elements are awarded at frequent regular time intervals during the competition. The points for other scoring elements are awarded at either irregular time intervals or at just one moment in time. There are about 20 different types of scoring elements. Each of the 20 types of scoring elements has a different set of inputs, a different algorithm for calculating the earned score from the raw inputs, and a different number of total available points. The simplest algorithms require one input and one simple calculation. The most complex algorithms consist of hundreds or thousands of raw inputs and a more complicated calculation. Some types of raw inputs are automatically generated. Other types of raw inputs are manually entered. All raw inputs are subject to possible manual retroactive adjustments by competition officials. Primary requirements: The scoring system UI for competitors and other competition followers will show current and historical total team scores, team standings, team scores by scoring element, raw input data (at several levels of aggregation, e.g. daily, weekly, etc.), and other metrics. There will be charts, tables, and other widgets for displaying historical raw data inputs and scores. There will be a quasi-real-time dashboard that will show current scores and raw data inputs. Aggregate scores should be updated/refreshed whenever new raw data inputs arrive or existing raw data inputs are adjusted. There will be a "scorekeeper UI" for manually entering new inputs, manually adjusting existing inputs, and manually adjusting calculated scores. Decisions: Should the scoring calculations be performed on the database layer (T-SQL/SQL Server, in my case) or on the application layer (C#/ASP.NET MVC, in my case)? What are some recommended approaches for calculating updated total team scores whenever new raw inputs arrives? Calculating each of the teams' total scores from scratch every time a new input arrives will probably slow the system to a crawl. I've considered some kind of "diff" approach, but that approach may pose problems for ad-hoc queries and some aggegates. I'm trying draw some sports analogies, but it's tough because most games consist of no more than 20 or 30 scoring elements per game (I'm thinking of a high-scoring baseball game; football and soccer have fewer scoring events per game). Perhaps a financial balance sheet analogy makes more sense because financial "bottom line" calcs may be calculated from 250,000 or more transactions. Should I be making heavy use of caching for this application? Are there any obvious approaches or similar case studies that I may be overlooking?

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• SQLAuthority News – Weekend Experiment with NuoDB – Points to Pondor and Whitepaper

  - by pinaldave

  This weekend I have downloaded the latest beta version of NuoDB. I found it much improved and better UI. I was very much impressed as the installation was very smooth and I was up and running in less than 5 minutes with the product. The tools which are related to the Administration of the NuoDB seems to get makeover during this beta release. As per the claim they support now Solaris platform and have improved the native MacOS installation. I neither have Mac nor Solaris – I wish I would have experimented with the same. I will appreciate if anyone out there can confirm how the installations goes on these platforms. I have previously blogged about my experiment with NuoDB here: SQL SERVER – Weekend Project – Experimenting with ACID Transactions, SQL Compliant, Elastically Scalable Database SQL SERVER – Beginning NuoDB – Who will Benefit and How to Start SQL SERVER – Follow up on Beginning NuoDB – Who will Benefit and How to Start – Part 2 I am very impressed with the product so far and I have decided to understand the product further deep. Here are few of the questions which I am going to try to find answers with regards to NuoDB. Just so it is clear – NuoDB is not NOSQL, matter of the fact, it is following all the ACID properties of the database. If ACID properties are crucial why many NoSQL products are not adhering to it? (There are few out there do follow ACID but not all). I do understand the scalability of the database however does elasticity is crucial for the database and if yes how? (Elasticity is where the workload on the database is heavily fluctuating and the need of more than a single database server is coming up). How NuoDB has built scalable, elastic and 100% ACID compliance database which supports multiple platforms? How is NOSQL compared to NuoDB’s new architecture? In the next coming weeks, I am going to explore above concepts and dive deeper into the understanding of the same. Meanwhile I have read following white paper written by Experts at University of California at Santa Barbara. Very interesting read and great starter on the subject Database Scalability, Elasticity, and Autonomy in the Cloud. Additionally, my questions are also talking about NoSQL, this weekend I have started to learn about NoSQL from Pluralsight‘s online learning library. I will share my experience very soon. Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, SQL White Papers, T SQL, Technology Tagged: NuoDB

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