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Mirrored Weblogs
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Copying from MPPVE (formerly RCE) documentation: …might indicate that WCF is not correctly configured. To resolve the WCF issue The error returned is a “HTTP Error 404 – Not Found”. This might be due to an issue with the WCF scriptmaps registrations. To solve this issue: Open a command line console as Administrator Browse to [...]...
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Yesterday I had the chance to speak about windows azure at a Microsoft Azure camp event. People seemed very exited and stayed till late in the evening asking questions, writing code and publishing services to the cloud. Attendees also showed great anticipation for the spring release, and the future of the platform. So when I saw the announcement of the Meet Windows Azure online event this morning I thought “…damn missed that for a day, I could have let everyone know yesterday about the release date” Anyway this is something that you should not loose, register now and find out what’s the future of Microsoft’s cloud platform....
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In this email I will demonstrate in detail how to set up Database Mail.I am sure that this feature is well documented elsewhere in the web but I decided to give it a go. Database Mail is a very useful feature.Both the Maintenance Plan Wizard and Maintenance Plan Designer have the ability to send e-mails to DBAs. We can use the SQL Server Management Studio to set up Database Mail. ( read more )...
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In this post I would like to explain with some hands-on examples how to create a partitioned table in SQL Server and then manage the partitions. I know there are samples of how to do that in BOL,MSDN and elsewhere but I thought that it would be a good idea to give it a try with hands-on examples. Many people have found useful my style of posting. They feel they can follow the steps and master the technology/topic. ( read more )...
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Five years ago my primary hard disk failed taking some of my precious data like family pictures, videos, personal files and code away for ever. I was able to recover some but had to pay a hefty fee to the service guys. After the “ melt down incident ” I’ve decided to keep triplicates of my data to 2 more disks to avoid this from ever happening again. Setting this up though was quite a pain since I use a laptop and I’m constantly on the move, so I had to remember to sync everything the minute I got home to avoid losing anything. From time to time I considered moving my data to the cloud to avoid all the hassle and worries of syncing the data but to also be able to access those from where ever I was . There were a couple of services I’ve looked at but two things were keeping me from going through with this, the price , and the trust (not that someone would steal my data – who would care about my children photos after all, but what happens if the company is sold, closes, its hardware fails and so on). Microsoft’s...
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One of the challenges any company faces when developing multi tenant applications based on Windows Azure is how much will the tenant be charged for the services offered. The problem is more apparent in cases where the customer is not charged with a fixed monthly rate but according to the service usage (pay as you go model). Till today one had to manually track and monitor service consumption in order to be able to establish each tenant cost and adjust the billing accordingly. Today though the Azure ISV team in DPE announced public availability of Cloud Ninja Multi-Tenant Metering Block (CNMB) . CNMB enables SaaS ISVs to meter tenant-level consumption of various Windows Azure resources such as bandwidth, storage, SQL Azure, and compute . CNMB provides tenant-level meters, application level aggregates, rich query model based on OData, extensibility to implement customer meters. It comes with out-of-box meter providers for bandwidth, storage, SQL Azure, and compute. In future CNMB will add providers for Tomcat and...
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In this rather short post I would like to explain the concept of collation in SQL Server. This is a concept that stills confuses SQL Server DBAs and developers. I know that is a well documented feature (in books & the web) but I will give it a shot. ( read more )...
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I’ve been looking into porting Kael Rowan’s ZoomableCanvas (related to ZUI code used in Code Canvas, Debugger Canvas etc. VisualStudio add-ons) from WPF to Silverlight. One of the issues I found was that Silverlight’s Rect class (I guess this is a case for .NET Compact Framework in general) doesn’t have a method to check if [...]...
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I have been looking into ASP.Net MVC 4.0 lately and I thought it would be a nice idea to create a small ASP.Net MVC 4.0 application and write a post about it. So this is going to be a rather long post that will show you with a hands-on example how to...( read more )...
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Σήμερα διεξήχθησαν οι ελληνικοί τελικοί του Imagine Cup 2012 στα γραφεία της Microsoft Ελλάς στην Αθήνα! Οι 6 καλύτερες ομάδες παρουσίασαν τα projects τους και στο τέλος ανακοινώθηκε η τριάδα των νικητών. To project Symbiosis ανακηρύχθηκε μεγάλος νικητής και θα εκπροσωπήσει τη χώρα μας στους Παγκόσμιους Τελικούς στην Αυστραλία, τον Ιούλιο. Αξίζει να σημειωθεί ότι ένας εκ των 40 κριτών στους Παγκόσμιους Τελικούς θα είναι ο κ. Διομήδης Σπινέλλης, ο οποίος ήταν μέλος και στην κριτική επιτροπή για τους ελληνικούς τελικούς, μαζί με τους κ. Γιάννη Ριζόπουλο, Σταύρο Μένεγο, Patrick Malone, Ελένη Ραχανιώτου και Φώτη Δραγανίδη. Ακολουθούν τα projects των ομάδων που κατέκτησαν τις 3 πρώτες θέσεις. 1η θέση – Symbiosis, Τμήμα Ηλεκτρολόγων Μηχανικών και Μηχανικών Υπολογιστών Symbiosis Η νόσος Alzheimer είναι ένα παγκόσμιο πρόβλημα με δραματικές επιπτώσεις, τόσο κοινωνικές όσο και οικονομικές, το οποίο λαμβάνει διαστάσεις πανδημίας στον 21ο αιώνα [35.6 εκατομμύρια παγκοσμίως νοσούν ήδη (2010), ενώ κάθε 69s εμφανίζεται ένα νέο...
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In this post I would like to explain you with a hands-on example the importance of filegroups in Sql Server databases. This is not a post that experienced/advnanced DBAS/developers should read. The target audience is beginners (Level 100). Most beginners in SQL Server do not understand the concept of filegroups and why we need them. Ι am going to start with a short introduction on data files,log files. ( read more )...
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If you see this post it means that BlogEngine.NET 2.6 is running and the hard part of creating your own blog is done. There is only a few things left to do. Write Permissions To be able to log in to the blog and writing posts, you need to enable write permissions on the App_Data folder. If your blog is hosted at a hosting provider, you can either log into your account’s admin page or call the support. You need write permissions on the App_Data folder because all posts, comments, and blog attachments are saved as XML files and placed in the App_Data folder. If you wish to use a database to to store your blog data, we still encourage you to enable this write access for an images you may wish to store for your blog posts. If you are interested in using Microsoft SQL Server, MySQL, SQL CE, or other databases, please see the BlogEngine wiki to get started. Security When you've got write permissions to the App_Data folder, you need to change the username and password. Find the sign-in link located either at the...
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In this rather short post I would like to provide you with a hands-on example on SPARSE columns. Sparse columns are very useful when we have tables and columns with many zero and NULL values.This feature was introduced in SQL Server 2008.We have a better more efficient way to manage empty space through SPARSE columns by enabling NULL data to consume no space at all.( read more )...
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This is going to be a rather short post. I have been teaching the Official Microsoft SQL Server courses in my capacity as MCT and to be totally honest with you I enjoy it very much.One of my favorite subject is Backup & Restore. This is maybe the main DBA task.There is no way to explain adequately Backup & Restore without talking about Recovery models.Well some people in the class did not know how to find the recovery model for each database in the server. Another common question is how to find out the recovery models for all databases at once. ( read more )...
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In this post I would like to show you what happens when we issue ROLLBACK operations in nested transactions. Have a look in this post of mine to find out more information about transactions.A lot of people are confused on how a Rollbackstatement impacts a nested transaction. ( read more )...
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Αύριο πρόκειται να φιλοξενήσουμε μία ασυνήθιστη για τα δεδομένα της εταιρίας εκδήλωση με θέμα την προώθηση/marketing Software εφαρμογών ( εγγραφές εδώ ). Θα παρουσιάσουν μία σειρά από ειδήμονες στο χώρο, αρχής γενομένης από...
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In this post I would like to show you a fairly simple example on how to use Log4Net logging service to log information in a text file.You can log information to a text file,a database table or Windows event viewer using the Log4Net logging assembly.This...( read more )...
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Today I’m really excited as Microsoft announced Windows Azure Media Services, a new collection of PaaS services coming soon to Windows Azure . Windows Azure Media Services simplifies the creation, management, and delivery of media to almost any device including Microsoft Xbox, Windows Phone handsets and Windows PCs, as well as non-Microsoft platforms such as smart TVs, set-top boxes, MacOS, iOS, and Android. Content providers and media partners can take advantage of the cost benefits and cloud capacity found with Windows Azure, and provide customers massive amounts of digital media in the variety of formats they require, when they require it. Windows Azure Media Services’ ready-to-use services allow customers to simplify the creation of complex media workflows built on the Microsoft Media Platform and third-party technologies. For additional details on today’s announcement, please take a look at the following resources: Scott Guthrie’s Blog (announce details, media partners, capabilities, architecture overviews,...
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In this post I would like to talk about DENY and GRANT security permissions. I will provide some examples that will demonstrate that DENY takes precedence over GRANT but there are some special cases. We use DENY and GRANT T-Sql commands to give permissions on a securable (e.g table) to a principal (a custom user we have created).Most developers are familiar with their use but there are some special cases I would like to point out. ( read more )...
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I have been involved with an ASP.Net project recently and I have implemented it using the awesome DevExpress ASP.Net controls. In this post I will show you how to bind an XPODataSource control to an ASPxGridView control. If you want to implement this...( read more )...
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In this post I would like to show you with a hands-on example why it is a bad idea to have duplicate indexes on SQL Server tables. Some people believe that having duplicate indexes will improve the performance. There will be no performance gain for SELECT statements and there will be a performance degradation for INSERT,UPDATE,DELETE statements. Have a look in this post if you want to learn about the possible dangers of over indexing your tables. We will need a database to work with. I will use AdventureWorks2008R2 . You can download it here . ( read more )...
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For March we addressed many bugs and added new stuff taken from your cases. Thank you for participating in our forums! Latest collaborations Option to reload Sequence objects after objectspace commit Useful in MiddleTier, when server modifies an object. You can enable this attribute via Model/Opetions node see ( http://goo.gl/Mvt5Y ) Wizard module (by noxe) ,now has its own place in Xpand’s FeatureCenter. See it in action under DetailViewControls navigation menu. In addition it is possible to show a wizard detail view directly from the navigation menu. Finally there is special support for FocusDefaultDetailViewItemController Upgrade to 11.2.10 Logic modules Renter bug big thanks to noxe (see http://goo.gl/7f5aW ). It is now possible to execute rules when an Action is executed (see http://goo.gl/g2CFT ). Design time errors BaseimPle Copy local=true exceptions have been minimized now. Each module loads its own objects thus minimizing the references you need from your application project VS New project...
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I have been involved in a ASP.Net project recently and I have implemented it using the awesome DevExpress ASP.Net controls. In this post I would like to show you how to use the client-side events that can make the user experience of your web application...( read more )...
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I have been involved with a ASP.Net project recently and I have implemented it using the awesome DevExpress ASP.Net controls. Parts of the project involved binding data from custom objects, SqlDataSource & ObjectDataSource data sources to the ASPxGridView...( read more )...
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I have been involved with a ASP.Net project recently and I have implemented using the awesome DevExpress ASP.Net controls. In this post I will show you how to implement Master-Detail functionality using the ASPxGridView control. If you want to implement...( read more )...
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