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  • Managing Confidence

    - by andyleonard
    Introduction This post is the fifty-third part of a ramble-rant about the software business. The current posts in this series can be found on the series landing page . This post is about inspiring others. Hot Chicks - Baby chickens beneath a warming lamp… </NonSubtleSEOPloy> For those who do not know, we raise chickens that laying eggs – referred to as “laying hens”. Natural attrition has taken our flock of laying hens to 11, plus one rooster. We recently received an order of new chicks (pictured...(read more)

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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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  • Exciting DBA and BI role in London for fast growing startup

    - by simonsabin
    One of my clients is looking for a DBA and a BI developer. They are a very exciting dotcom company with cutting edge technology and are growing fast  A bit older than a startup but they still have that feel about them. They are based in North London and are a very nice company to work for, flexible hours, working from home. Plus they are willing to pay for the right candidate. There is at least 1 DBA and 1 BI role going. If you are interested then let me know http://sqlblogcasts.com/blogs/simons...(read more)

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  • TSQL Challenge 31 - Managing multiple overlapping date intervals.

    This challenge is adapted from a budgeting system used in a large company to perform quarterly analysis of what kind of work will be done and where it will be done. Project Managers make plans and the estimated hours of work required from each employee each month end up in a central database. Top managers want to see a synthesis of this by department and profession

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  • VMWare Lab Manager: What's the best way to build Library Configurations?

    - by mcohen75
    We're using Lab Manager within our QA group. We use it to quickly deliver environments we need for testing. We have 25 Templates, 14 Library Configurations and counting. To build up our templates we: Create a base template that is a bare bones version of Server 2008 + basic configuration (Windows Update, Firewall exceptions) Create a linked clone for each Server template we need (SQL Server 08, 05, etc) Repeat for other OS's, like Windows 7 and Windows XP Then we create configurations: Create a workspace configuration with multiple images in it (Say Server 08 w/SQL Server and Windows 7) Deploy the configuration and make some minor configuration changes Undeploy and Capture to Library How do we keep this manageable? When I need to update a configuration, should I: Rebuild it from templates Clone it to a workspace, make changes, recapture it to the library keep the configuration in my workspace (don't delete it after capturing it to library), deploy it to make changes and then re-capture to library

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  • Visual Studio 2010: Is it possible to force editor to use ANSI rather than UTF-8?

    - by Mark Redman
    I am having issues with some files in automated processes, specifically with batch files and sql files. Visual Studio seems to create these as UTF-8 rather than ansi and adds some kind of special characters to the beginning of the file (I think this is a called a pre-amble) This breaks running batch files and running swl files through osql.exe. I have had issues myself in the past in creating text files using C#, but can get around that through encoding. However its seems a bit strange I cant use Visual studio to create batch files and sql files in a database project for automation.

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  • What's better for deploying a website + DB on EC2: 2 small VM or a large one?

    - by devguy
    I'm planning the deployment of a mid-sized website with a SQL Server Standard DB. I've chosen Amazon EC2 to deploy it. I now have to choose between these 2 options: 1) get 2 small instances (1 core each, 1.7 GB of ram each): one for the IIS front-end, one for running the DB. Note: these "small instances" can only run the 32-bit version of Win2008 Server 2) a single large instance (4 cores, 7.5 gb of ram) where I'd install both IIS and the SQL Server. Note: this large instance can only run the 64-bit version of Win2008 Server What's better in terms on performance, scalability, ease of management (launch up a new instance while I backup the principal instance) etc. All suggestions and points of view are welcome!

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  • Rules of Holes #7: Some Will Look Down on You.

    - by ArnieRowland
    I've been extoling the Rules of Holes, hoping to give you both courage to get out of your Hole, and solace for having allowed yourself to get in a Hole in the first place. How about the others, the folks that see that you are up to your neck, the folks that could guide you out, the folks that are secretly glad that it is you down in the Hole instead of them. So this brings us to Rules of Holes #7: When you are in a hole, some will look down on you. Only a few will offer their hand, and of those,...(read more)

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  • Rules of Holes -#2: You Are Still in a Hole

    - by ArnieRowland
    OK. So you followed the First Rule of Holes -you stopped digging yourself in deeper. But now what? You are still in a Hole. Your situation has not changed much, but at least you are no longer making it worse. You need to redirect the digging effort into escape and avoidance efforts. The Hole has a singular purpose -consuming all of your time and effort. AND it has succeeded! But now you are going to redirect your efforts for your own survival. You need to look around, take stock of the situation....(read more)

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  • Context-specific remap

    - by dotancohen
    I have the following handy VIM map: inoremap ( ()<Left> However, sometimes I will enter Insert mode to add a function call around a variable, like so: Was: $sql = "SELECT * FROM " . $someTable; To: $sql = "SELECT * FROM " . mysql_real_escape_string($someTable); The mapping makes a redundant ) after mysql_real_escape_string(. Is there any way to refactor the mapping so that if there exists a character after the cursor, and the character after the cursor is not whitespace, then )<left> is not appended to (? Thanks.

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  • Performance Tuning in the Age of Big Data

    Database Administrators must now deal with large volumes of data and new forms of high-speed data analysis. If your responsibility includes performance tuning, here are the areas to focus on that will become more and more important in the age of Big Data. Total DeploymentEnjoy easy release management for your .NET apps, services, and databases with Deployment Manager. Get your free Starter edition now

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  • Search For a Query in RDL Files with PowerShell

    - by AllenMWhite
    In tracking down poorly performing queries for clients I often encounter the query text in a trace file I've captured, but don't know the source of the query. I've found that many of the poorest performing queries are those written into the reports the business users need to make their decisions. If I can't figure out where they came from, usually years after the queries were written, I can't fix them. First thing I did was find a great utility called RSScripter , which opens up a Windows dialog...(read more)

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  • Ranking with PowerPivot – a different approach

    - by Marco Russo (SQLBI)
    Alberto Ferrari wrote an interesting post about a “different approach” in creating a ranking measure with PowerPivot . If you know DAX or you read our book , you will find that a DAX expression can solve the issue. However, such a formula is more complex than necessary. The next version of PowerPivot might have more built-in DAX functions and should solve the ranking need with a simpler formula. In the meantime, it is interesting to know a different approach that relies on Excel skills instead of...(read more)

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  • Repository query conditions, dependencies and DRY

    - by vFragosop
    To keep it simple, let's suppose an application which has Accounts and Users. Each account may have any number of users. There's also 3 consumers of UserRepository: An admin interface which may list all users Public front-end which may list all users An account authenticated API which should only list it's own users Assuming UserRepository is something like this: class UsersRepository extends DatabaseAbstraction { private function query() { return $this->database()->select('users.*'); } public function getAll() { return $this->query()->exec(); } // IMPORTANT: // Tons of other methods for searching, filtering, // joining of other tables, ordering and such... } Keeping in mind the comment above, and the necessity to abstract user querying conditions, How should I handle querying of users filtering by account_id? I can picture three possible roads: 1. Should I create an AccountUsersRepository? class AccountUsersRepository extends UserRepository { public function __construct(Account $account) { $this->account = $account; } private function query() { return parent::query() ->where('account_id', '=', $this->account->id); } } This has the advantage of reducing the duplication of UsersRepository methods, but doesn't quite fit into anything I've read about DDD so far (I'm rookie by the way) 2. Should I put it as a method on AccountsRepository? class AccountsRepository extends DatabaseAbstraction { public function getAccountUsers(Account $account) { return $this->database() ->select('users.*') ->where('account_id', '=', $account->id) ->exec(); } } This requires the duplication of all UserRepository methods and may need another UserQuery layer, that implements those querying logic on chainable way. 3. Should I query UserRepository from within my account entity? class Account extends Entity { public function getUsers() { return UserRepository::findByAccountId($this->id); } } This feels more like an aggregate root for me, but introduces dependency of UserRepository on Account entity, which may violate a few principles. 4. Or am I missing the point completely? Maybe there's an even better solution? Footnotes: Besides permissions being a Service concern, in my understanding, they shouldn't implement SQL query but leave that to repositories since those may not even be SQL driven.

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  • The Integrity Challenge

    - by andyleonard
    Introduction This post is the twenty-eighth part of a ramble-rant about the software business. The current posts in this series are: Goodwill, Negative and Positive Visions, Quests, Missions Right, Wrong, and Style Follow Me Balance, Part 1 Balance, Part 2 Definition of a Great Team The 15-Minute Meeting Metaproblems: Drama The Right Question Software is Organic, Part 1 Metaproblem: Terror I Don't Work On My Car A Turning Point Human Doings Everything Changes Getting It Right The First Time One-Time...(read more)

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  • MS Access 2007 end user access

    - by LtDan
    I need some good advise. I have used Access for many years and I use Sharepoint but never the two combined. My newly created Access db needs to be shared with many users across the organization. The back end is SQL and the old way to distribute the database would be placing the db on a shared drive, connecting their PC ODBC connections to the SQL db and then they would open the database and have at it. This has become the OLD way. What is the best (and simpliest) way to allow the end users to utilize a frontend for data entry/edit reporting etc. Can I create a link through SharePoint and the user just open it from there. Your good advise is greatly approciated.

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  • Using Subjects to Deploy Queries Dynamically

    - by Roman Schindlauer
    In the previous blog posting, we showed how to construct and deploy query fragments to a StreamInsight server, and how to re-use them later. In today’s posting we’ll integrate this pattern into a method of dynamically composing a new query with an existing one. The construct that enables this scenario in StreamInsight V2.1 is a Subject. A Subject lets me create a junction element in an existing query that I can tap into while the query is running. To set this up as an end-to-end example, let’s first define a stream simulator as our data source: var generator = myApp.DefineObservable(     (TimeSpan t) => Observable.Interval(t).Select(_ => new SourcePayload())); This ‘generator’ produces a new instance of SourcePayload with a period of t (system time) as an IObservable. SourcePayload happens to have a property of type double as its payload data. Let’s also define a sink for our example—an IObserver of double values that writes to the console: var console = myApp.DefineObserver(     (string label) => Observer.Create<double>(e => Console.WriteLine("{0}: {1}", label, e)))     .Deploy("ConsoleSink"); The observer takes a string as parameter which is used as a label on the console, so that we can distinguish the output of different sink instances. Note that we also deploy this observer, so that we can retrieve it later from the server from a different process. Remember how we defined the aggregation as an IQStreamable function in the previous article? We will use that as well: var avg = myApp     .DefineStreamable((IQStreamable<SourcePayload> s, TimeSpan w) =>         from win in s.TumblingWindow(w)         select win.Avg(e => e.Value))     .Deploy("AverageQuery"); Then we define the Subject, which acts as an observable sequence as well as an observer. Thus, we can feed a single source into the Subject and have multiple consumers—that can come and go at runtime—on the other side: var subject = myApp.CreateSubject("Subject", () => new Subject<SourcePayload>()); Subject are always deployed automatically. Their name is used to retrieve them from a (potentially) different process (see below). Note that the Subject as we defined it here doesn’t know anything about temporal streams. It is merely a sequence of SourcePayloads, without any notion of StreamInsight point events or CTIs. So in order to compose a temporal query on top of the Subject, we need to 'promote' the sequence of SourcePayloads into an IQStreamable of point events, including CTIs: var stream = subject.ToPointStreamable(     e => PointEvent.CreateInsert<SourcePayload>(e.Timestamp, e),     AdvanceTimeSettings.StrictlyIncreasingStartTime); In a later posting we will show how to use Subjects that have more awareness of time and can be used as a junction between QStreamables instead of IQbservables. Having turned the Subject into a temporal stream, we can now define the aggregate on this stream. We will use the IQStreamable entity avg that we defined above: var longAverages = avg(stream, TimeSpan.FromSeconds(5)); In order to run the query, we need to bind it to a sink, and bind the subject to the source: var standardQuery = longAverages     .Bind(console("5sec average"))     .With(generator(TimeSpan.FromMilliseconds(300)).Bind(subject)); Lastly, we start the process: standardQuery.Run("StandardProcess"); Now we have a simple query running end-to-end, producing results. What follows next is the crucial part of tapping into the Subject and adding another query that runs in parallel, using the same query definition (the “AverageQuery”) but with a different window length. We are assuming that we connected to the same StreamInsight server from a different process or even client, and thus have to retrieve the previously deployed entities through their names: // simulate the addition of a 'fast' query from a separate server connection, // by retrieving the aggregation query fragment // (instead of simply using the 'avg' object) var averageQuery = myApp     .GetStreamable<IQStreamable<SourcePayload>, TimeSpan, double>("AverageQuery"); // retrieve the input sequence as a subject var inputSequence = myApp     .GetSubject<SourcePayload, SourcePayload>("Subject"); // retrieve the registered sink var sink = myApp.GetObserver<string, double>("ConsoleSink"); // turn the sequence into a temporal stream var stream2 = inputSequence.ToPointStreamable(     e => PointEvent.CreateInsert<SourcePayload>(e.Timestamp, e),     AdvanceTimeSettings.StrictlyIncreasingStartTime); // apply the query, now with a different window length var shortAverages = averageQuery(stream2, TimeSpan.FromSeconds(1)); // bind new sink to query and run it var fastQuery = shortAverages     .Bind(sink("1sec average"))     .Run("FastProcess"); The attached solution demonstrates the sample end-to-end. Regards, The StreamInsight Team

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  • How selective do we need to be for an index to be used?

    - by TiborKaraszi
    You know the answer already: It depends. But I often see some percentage value quoted and the point of this post is to show that there is no such percentage value. To get the most out of this blog post, you should understand the basic structure for an index, i.e. how the b+ tree look like. You should also understand the difference between a clustered and a non-clustered index. In essence, you should be able to visualize these structures and searches through them as you read the text. If you find...(read more)

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  • Highlighting repeating groups in SSRS 2008 R2 charts

    In a typical bar chart, the height of the bars represents the value of the data along the X axis and the Y axis represents the category of the data point. All these values can be classified in logical groups depending upon the logic used for analysis. One general requirement that arises in the case of repeating groups, is to highlight these groups without representing it on the X or Y scale. In this tip we will look at how to address this requirement.

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  • Check for Instant File Initialization

    - by TiborKaraszi
    Instant File initialization, IFI, is generally a good thing to have. Check out this earlier blog post of mine f you don't know what IFI is and why it is a good thing: blog . The purpose of this blog post is to provide a simple script you can use to check if you have IFI turned on. Note that the script below uses undocumented commands, and might take a while if you have a large errorlog file... USE MASTER ; SET NOCOUNT ON -- *** WARNING: Undocumented commands used in this script !!! *** -- --Exit...(read more)

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  • PASS Summit 2012 Day One Keynote

    - by AllenMWhite
    Today is the official start to the 2012 PASS Summit and I'm honored to have a seat at the Blogger's Table again. This is a set of tables set up in the back of the keynote room for people who blog frequently (I know) to share their thoughts on the keynote with the public, and appreciate the invitation from PASS to participate again. The lights go down and they showed a video of PASS board members talking about what the PASS Summit means to each of them. It was well put together and I know that the...(read more)

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  • Do you know SqlServer ? Do you want an iPad ?

    - by Dave Ballantyne
    If you’ve answered yes to both of those questions , Jacob Sebastian has some more question for you. Every day in March there is a different question set by a SqlServer community notable member. At the end of the month the answers will be judged, scored and tallied.  The person with the most points will be the proud owner of a shiny new iPad.  Numerou What could be easier ? So what are you waiting for ? Get over to http://beyondrelational.com/quiz/SQLServer/TSQL/2011/default.aspx and give it a go.

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