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  • Chapters Two, Three, and Four

    - by drsql
    I am trying to blog all of the chapters of the book, but due to deadlines and a lot of shuffling about, I never got around it for these three chapters, two of which I have added since I wrote the original table of contents. All of these contain mostly material from previous editions of the book, updated a good amount, but nothing tremendously different if you had memorized the material from the previous edition. As such, the pre-writing blog ritual wasn’t as necessary (for me at least) as it is going...(read more)

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  • Getting Error whileInitializing entities [closed]

    - by R76
    I am new'b as WPF Dev. I am developing Window application in WPF using mvvmlight framework. I have created database in Sqlserver compact 4.0. I have made a Ado.net Entity Data Model. When I trying to initialize the Entity object in service it throws the error like: Error 'The invocation of the constructor on type 'PointOfSale.ViewModels.ProductsViewModel' that matches the specified binding constraints threw an exception.' Line number '7' and line position '10'. stack Trace at System.Windows.Markup.XamlReader.RewrapException(Exception e, IXamlLineInfo lineInfo, Uri baseUri) at System.Windows.Markup.WpfXamlLoader.Load(XamlReader xamlReader, IXamlObjectWriterFactory writerFactory, Boolean skipJournaledProperties, Object rootObject, XamlObjectWriterSettings settings, Uri baseUri) at System.Windows.Markup.WpfXamlLoader.LoadBaml(XamlReader xamlReader, Boolean skipJournaledProperties, Object rootObject, XamlAccessLevel accessLevel, Uri baseUri) at System.Windows.Markup.XamlReader.LoadBaml(Stream stream, ParserContext parserContext, Object parent, Boolean closeStream) at System.Windows.Application.LoadComponent(Object component, Uri resourceLocator) at PointOfSale.MainWindow.InitializeComponent() in e:\VarniApplication\PointOfSale\PointOfSale\MainWindow.xaml:line 1 at PointOfSale.MainWindow..ctor() in E:\VarniApplication\PointOfSale\PointOfSale\MainWindow.xaml.cs:line 27 Inner Exception {"Unable to load the specified metadata resource."} My code: xyzEntities entites; public ctor() { entites = new xyzEntities(); //This line throws an error } I have installed sql server compact 4.0 from web installer 3.0. and added the sql server compact toolbox from the extension manager. Tell me if I am missing something to install or missing something to write code.

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  • New DMV–yes… no… that’s complicated

    - by Michael Zilberstein
    Remember the excitement about new sys.dm_exec_query_profiles DMV? It promised to be a gamechanger, providing query visibility at a runtime and easily extractable information about heavy iterators in execution plan. So it has been announced but missing. Now in CTP2 it is finally here. So, singing one of my favorite Queen songs “… It finally happened - I’m slightly mad…” , I tried to observe query execution data at a runtime. And… nothing. Query is running, DMV is empty. That’s really disappointing...(read more)

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  • PASS 2013 Board of Directors Election

    - by NeilHambly
    Hello Today we received the PASS Connector emails, with the announcements of the 7 Candidates running in this BoD election, as you can see there are a total of 7 of us who made it through to the final stages Announcing the PASS Board of Directors Candidates The PASS Board of Directors has ratified the official slate for the upcoming Board elections, which begin this week. Three seats are up for election for the 2014-2015 term, including two regional seats: one representing EMEA and one representing...(read more)

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  • A marketing view of SQLBits

    - by simonsabin
    One of the most enjoyable things about SQLBits is reading all the blog posts/reviews after the event. We are normally fortunate enough not to have pissed anyone off and so the posts are generally positive. Most pieces are from attendees however this piece is from a wife of a sponsor http://iknowmarketing.wordpress.com/2012/04/02/events-community-vs-commercial/ . Its a nice piece for us as it highlights how we work and that how we focus on making the event personal for all those involved. We deal...(read more)

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  • SSDs at PASS 2012

    - by jchang
    There were 7 companies exhibiting SSD products as PASS this year, and one with a product to support SSD storage. This is not counting Dell, EMC and HP who have SSD products, but were at PASS for other reasons. This shows that many have aspirations with the hope that market leadership is not yet firmly set. The products fall into the following: PCI-E SSDs (Fusion-io, LSI, Virident) SSD SAN (Violin, TMS, Whiptail) SSD caching (LSI, GridIron) I am inclined to be of the opinion that SSD market is not...(read more)

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  • Database Mirroring Performance Monitoring

    Many people deploy performance monitoring solutions in a "one-size-fits-all" manner. That is, they tend to build a solution that can be easily deployed to multiple servers and capture basic information from each server. The trouble is that not every server is identical, not even within the same shop. For example, not every server may have database mirroring deployed, which means your performance monitoring solution may be missing some critical pieces of information with regards to monitoring database mirroring.

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  • Seek first to understand, then to be understood

    - by BuckWoody
    One of the most important (and most difficult) lessons for a technical professional to learn is to not jump to the solution. Perhaps you’ve done this, or had it happen to you. As the person you’re “listening” to is speaking, your mind is performing a B-Tree lookup on possible solutions, and when the final node of the B-Tree in your mind is reached, you blurt out the “only” solution there is to the problem, whether they are done or not. There are two issues here – both of them fatal if you don’t factor them in. First, your B-Tree may not be complete, or correct. That of course leads to an incorrect response, which blows your credibility. People will not trust you if this happens often. The second danger is that the person may modify their entire problem with a single word or phrase. I once had a client explain a detailed problem to me – and I just KNEW the answer. Then they said at the end “well, that’s what it used to do, anyway. Now it doesn’t do that anymore.” Which of course negated my entire solution – happily I had kept my mouth shut until they finished. So practice listening, rather than waiting for your turn to speak. Let the person finish, let them get the concept out, give them your full attention. They’ll appreciate the courtesy, you’ll look more intelligent, and you both may find the right answer to the problem. Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • A more reliable and more flexible sp_MSforeachdb

    - by AaronBertrand
    I've complained about sp_MSforeachdb before. In part of my "Bad Habits to Kick" series in 2009-10, I described how I worked around its sporadic inability to actually process all of the databases on an instance: http://sqlblog.com/blogs/aaron_bertrand/archive/2010/02/08/bad-habits-to-kick-relying-on-undocumented-behavior.aspx I lumped this in a "Bad Habit" category of relying on undocumented behavior, since - while the procedure does have rampant usage - it is, in fact, both undocumented and unsupported....(read more)

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  • Mouse Clicks, Reactive Extensions and StreamInsight Mashup

    I had an hour spare this afternoon so I wanted to have another play with Reactive Extensions in .Net and StreamInsight. I also didn’t want to simply use a console window as a way of gathering events so I decided to use a windows form instead. The task I set myself was this. Whenever I click on my form I want to subscribe to the event and output its location to the console window and also the timestamp of the event.

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  • Updated sp_indexinfo

    - by TiborKaraszi
    It was time to give sp_indexinfo some love. The procedure is meant to be the "ultimate" index information procedure, providing lots of information about all indexes in a database or all indexes for a certain table. Here is what I did in this update: Changed the second query that retrieves missing index information so it generates the index name (based on schema name, table name and column named - limited to 128 characters). Re-arranged and shortened column names to make output more compact and more...(read more)

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  • Using the RadTransitionControl in Task-It

    Download Source Code NOTE: To run the source code provided your will need to update to the RC (release candidate) versions of Silverlight 4 and VisualStudio 2010.  In a recent Ask the Experts webinar I showed a simple solution that had similarities to one that I had used in my recent MVVM post, but had a few extra twists on it. I have since been asked if I could post the source code for this demo, so here it is (I am using similar techniques in my Task-It application). The database Before running the code for this app you will need to create the database. First, create a database called MVVMProject in SQL Server, then run MVVMProject.sql in the MVVMProjectDemo/Database directory of your downloaded .zip file. This should give you a Task table with 3 records in it. You will also need to update the connection string in web.config to point to your database ...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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  • PASS Summit 2013, a Hit in Charlotte! (and an apology)

    - by andyleonard
    I had a great time at the PASS Summit 2013 this past week in Charlotte! I spoke to several people who told me they were pleasantly surprised by the venue and the event. Charlotte rocks! As a NASCAR fan, I particularly enjoyed the Community Event held at the NASCAR Hall of Fame . It is always an honor to present and I was honored to deliver Designing an SSIS Framework and to participate in a cool panel discussion titled How to Avoid Living at Work: Lessons from Working at Home . Panel discussions...(read more)

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  • How to schedule a task X minutes after Windows Server 2003 starts?

    - by Joe Schmoe
    How to schedule a task X minutes after Windows Server 2003 starts? In "Scheduled Tasks" one can specify "When my computer starts" but I see no way to specify delay. What I am trying to achieve: there is a service (JIRA) that even though dependent on SQL Server service still doesn't wait long enough for SQL Server to become fully operational. So JIRA service fails to connect to the database and needs to be restarted manually after each server reboot. My plan is to add "SC stop" and "SC start" commands for JIRA service 3 minutes after server starts.

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  • Did you know documentation is built-in to usp_ssiscatalog?

    - by jamiet
    I am still working apace on updates to my open source project SSISReportingPack, specifically I am working on improvements to usp_ssiscatalog which is a stored procedure that eases the querying and exploration of the data in the SSIS Catalog. In this blog post I want to share a titbit of information about usp_ssiscatalog, that all the actions that you can take when you execute usp_ssiscatalog are documented within the stored procedure itself. For example if you simply execute EXEC usp_ssiscatalog @action='exec' in SSMS then switch over to the messages tab you will see some information about the action: OK, that’s kinda cool. But what if you only want to see the documentation and don’t actually want any action to take place. Well you can do that too using the @show_docs_only parameter like so: EXEC dbo.usp_ssiscatalog @a='exec',@show_docs_only=1; That will only show the documentation. Wanna read all of the documentation? That’s simply: EXEC dbo.usp_ssiscatalog @a='exec',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='execs',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='configure',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='exec_created',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='exec_running',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='exec_canceled',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='exec_failed',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='exec_pending',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='exec_ended_unexpectedly',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='exec_succeeded',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='exec_stopping',@show_docs_only=1; EXEC dbo.usp_ssiscatalog @a='exec_completed',@show_docs_only=1; I hope that comes in useful for you sometime. Have fun exploring the documentation on usp_ssiscatalog. If you think the documentation can be improved please do let me know. @jamiet

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  • River City Give Camp 4-6 Feb 2011 in Richmond!

    - by andyleonard
    I'm often approached by community members who seek new or better employment. One problem? Experience. You need experience to get a new or better job; you can't get experience without the new gig. </ Catch22 > River City Give Camp is a way to gain some experience, but it's much more than that - it's also a great way to network with others currently working in the field. Sign up ! Show them what you've got! :{>...(read more)

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  • Delete trigger does not catch table truncation

    - by Tomaz.tsql
    Sample shows table truncation will not fire delete trigger. USE AdventureWorks; GO -- STAGING IF EXISTS (SELECT * FROM sys.objects WHERE name = 'est_del_trigger_log' AND type = 'U') DROP TABLE test_del_trigger_log; GO IF EXISTS (SELECT * FROM sys.objects WHERE name = 'est_del_trigger' AND type = 'U') DROP TABLE test_del_trigger; GO CREATE TABLE test_del_trigger (id INT IDENTITY(1,1) ,tkt VARCHAR(10) CONSTRAINT pk_test_del_trigger PRIMARY KEY (id) ); GO INSERT INTO...(read more)

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  • Video of my session from SQLBits 8 (Brighton)

    - by NeilHambly
    If you missed my session @ SQLBits 8 (Brighton) on "Queues & Waits" and are feeling somewhat brave, you can now view it in your own home/office and @ your leisure, so pull up a chair and settle in for a hour of "Waiting" .. hmmm that doesn't sound quite right but if you insist Follow this link and enjoy me if Full HDD if that is your preference (is that the right word ?), well hopefully you will not cringe quite as much as I did watching it {But I do think that is universal...(read more)

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  • How to Truncate the Log File

    - by Derek Dieter
    Sometimes after one or more large transactions, the t-log (transaction log) will become full. In these particular cases you may receive an error message indicating the transaction log is full. In order to alleviate this issue, you need to find the names of the transaction logs on your system and then shrink them. To find the [...]

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  • Complete your feedback to win a free registration to the PASS summit or an XBox

    - by simonsabin
    Don’t forget that if you complete you session and conference feedback for SQLBits then you will be entered into a draw for an XBox Super Elite . Not only that, we also have a registration for the PASS Summit in November this year to give away . The survey is essential for us to make SQLBits conference better . If you don’t tell us what doesn’t work then we can’t fix it. We listened this time and gave you better signage and more information in your agenda about sessions and the abstracts. So please...(read more)

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