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  • Financial Transparency is Good for Community

    - by ArnieRowland
    I was recently in a conversation with several people that had previously organized one or more community events. The topic evolved into a discussion of Sponsors, and eventually, fund raising. Being able to adequately raise the funds necessary is critical to producing a successful event. Many vendors will readily provide products for raffles and give-aways (SWAG), but the success of the event hangs on being able to raise cold, hard, cash. Venues and equipment have to be rented, refreshments and lunches...(read more)

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  • Undocumented Query Plans: The ANY Aggregate

    - by Paul White
    As usual, here’s a sample table: With some sample data: And an index that will be useful shortly: There’s a complete script to create the table and add the data at the end of this post.  There’s nothing special about the table or the data (except that I wanted to have some fun with values and data types). The Task We are asked to return distinct values of col1 and col2 , together with any one value from the thing column (it doesn’t matter which) per group.  One possible result set is shown...(read more)

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  • New White Papers Available

    - by mattande
    New Master Data Services white papers are now available on MSDN. For an application-agnostic overview of Master Data Management, see Organizational Approaches to Master Data Management . For the steps needed to configure Master Data Services to work with a SharePoint workflow, see SharePoint Workflow Integration with Master Data Services . Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!...(read more)

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  • Windows Server 2003 network boogey men every DBA should know

    - by merrillaldrich
    Recently I was again visited by my old friends TCP Chimney and SynAttackProtect . (Yeah, sometimes I feel like I mostly blog about 5-year old problems, but many of us as DBA's have to work on older versions or older systems, and so repeat older problems :-). This has been written about before, but as I BinGoogled around I noticed you are more likely to find the documents if you search for the cause, and not the symptoms. Most people who face a problem, of course, know the symptoms but not the cause....(read more)

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  • Microsoft BI Conference 2011 in Lisbon

    - by AlbertoFerrari
    Anyone interested in BI from Portugal or Spain should not miss the Microsoft BI Conference 2011 in Lisbon : one full day ( March, 25, 2011 ) with three tracks on Business Intelligence: Decision Makers BI pros Intro to BI. I am going to present two sessions on PowerPivot: one is a nice deep dive into DAX for BI pros, the other is about self service BI for decision makers. Titles and the complete agenda will be published in the next days, but I suggest to save the date. The full event is free and it...(read more)

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  • Data Warehouse Workshop

    - by Davide Mauri
    I’m really really pleased to announce that it’s possible to register to the Data Warehouse Workshop that I and Thomas Kejser developed togheter.  Several months ago we decided to join forces in order to create a workshop that would contain not only the theoretical stuff, but also the experience we both have and all the best practices and lesson learned that can make the difference between a success and a failure when building a Data Warehouse. The first sheduled date is 7 February in Kista (Sweden): http://www.eventzilla.net/web/event?eventid=2138965081 and until 30th November there is the Super Early Bird to save more the 100€ (150$). The workshop will be very similar to the one I delivered at PASS Summit summit, with some extra technical stuff since it’s one hour longer. In addition to that for this first version both me and Thomas will be present, so it’s a great change  to make sure you super-charge your DW/BI project with insights that aren’t available anywhere else! If you’re into the BI field and you live in Europe, don’t miss this opportunity!

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  • Exchange-Server Query

    - by Rudi Kershaw
    First, a little background. I've recently been taken on as a web and software developer for a small company, who has no other in-house IT support. They've been asking my opinion on lots of IT subjects that are quite far out of my comfort zone. I'm definitely not a network admin. Their IT consultancy contractor is pushing them to upgrade their dedicated exchange server, even though it seems like the one they currently have has a lot of life left in it and is running problem free. They say it's "coming to the natural end of it's life". They want to install a monster with a Xeon E5-2420, 32GB RAM, 2x 1TB HDDs, Windows Server 2012 and Microsoft Exchange 2010. They want to charge a small fortune for it. Basically, this system seems massively over the top seeing as it won't be doing anything else other than running as an exchange server for a company with less than 25 email accounts. My employers also have a file server system in-house that hosts three web apps, an SQL server, their local domain, print server and shared folders. That machine is using the same specs as the proposed new one, and it is barely using any of it's potential. I asked if Microsoft Exchange 2010 could be installed on their file server, but they said that MS Exchange can't run on the same system as an SQL server because for some reason they will eat up each others resources (even though the SQL server isn't touching 1% of the current system's CPU or RAM). My question is really, are they trying to rip my employers off? Could MS Exchange be installed on their other server (on a virtual instance or not), or does the old one even need replacing at all? Going with their current suggestion will cost the company in excess of £6k, and it seems entirely unnecessary. I apologies, because I know this is probably a little thin on details, but if I carry on I could end up writing a massive essay that no-one will want to read. I've been doing my research, but I'm not knowledgeable enough make any hard decisions. Let me know if you need any more details. Thank you for any help you can offer. Further Details: The new exchange would need to support Outlook Web App, 25 users, a few public mailboxes, and email exchange with Blackberries.

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  • Parameterized StreamInsight Queries

    - by Roman Schindlauer
    The changes in our APIs enable a set of scenarios that were either not possible before or could only be achieved through workarounds. One such use case that people ask about frequently is the ability to parameterize a query and instantiate it with different values instead of re-deploying the entire statement. I’ll demonstrate how to do this in StreamInsight 2.1 and combine it with a method of using subjects for dynamic query composition in a mini-series of (at least) two blog articles. Let’s start with something really simple: I want to deploy a windowed aggregate to a StreamInsight server, and later use it with different window sizes. The LINQ statement for such an aggregate is very straightforward and familiar: var result = from win in stream.TumblingWindow(TimeSpan.FromSeconds(5))               select win.Avg(e => e.Value); Obviously, we had to use an existing input stream object as well as a concrete TimeSpan value. If we want to be able to re-use this construct, we can define it as a IQStreamable: var avg = myApp     .DefineStreamable((IQStreamable<SourcePayload> s, TimeSpan w) =>         from win in s.TumblingWindow(w)         select win.Avg(e => e.Value)); The DefineStreamable API lets us define a function, in our case from a IQStreamable (the input stream) and a TimeSpan (the window length) to an IQStreamable (the result). We can then use it like a function, with the input stream and the window length as parameters: var result = avg(stream, TimeSpan.FromSeconds(5)); Nice, but you might ask: what does this save me, except from writing my own extension method? Well, in addition to defining the IQStreamable function, you can actually deploy it to the server, to make it re-usable by another process! When we deploy an artifact in V2.1, we give it a name: var avg = myApp     .DefineStreamable((IQStreamable<SourcePayload> s, TimeSpan w) =>         from win in s.TumblingWindow(w)         select win.Avg(e => e.Value))     .Deploy("AverageQuery"); When connected to the same server, we can now use that name to retrieve the IQStreamable and use it with our own parameters: var averageQuery = myApp     .GetStreamable<IQStreamable<SourcePayload>, TimeSpan, double>("AverageQuery"); var result = averageQuery(stream, TimeSpan.FromSeconds(5)); Convenient, isn’t it? Keep in mind that, even though the function “AverageQuery” is deployed to the server, its logic will still be instantiated into each process when the process is created. The advantage here is being able to deploy that function, so another client who wants to use it doesn’t need to ask the author for the code or assembly, but just needs to know the name of deployed entity. A few words on the function signature of GetStreamable: the last type parameter (here: double) is the payload type of the result, not the actual result stream’s type itself. The returned object is a function from IQStreamable<SourcePayload> and TimeSpan to IQStreamable<double>. In the next article we will integrate this usage of IQStreamables with Subjects in StreamInsight, so stay tuned! Regards, The StreamInsight Team

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  • Ghost in the machine

    - by GrumpyOldDBA
    Well it does relate to ghosts, in this case dbGhost, http://dbghost.com/    which is what this post is about. Ghost creates databases on the fly, something I personally don’t like too much, which it then compares to a “base” database to produce release scripts. ( The brief description ). As with all things sometimes all is not well and the server is left with a number of ghost created databases so I have to have a job to delete these every night before backups, it’s not difficult to code...(read more)

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  • What are the Crappy Code Games - Tips on how to win?

    - by simonsabin
    This is part of a series on the Crappy Code Games The background Who can enter? What are the challenges? What are the prizes? Why should I attend? Tips on how to win Tips on how to win Each test has some different aspect that will define how you win. In this post we will give you some tips on how to try and win. As a starter why not watch some of the sessions from previous SQLBits Storage sessions Sessions on IO The background Who can enter? What are the challenges? What are the prizes? Why should...(read more)

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  • Rounding functions in DAX

    - by Marco Russo (SQLBI)
    Today I prepared a table of the many rounding functions available in DAX (yes, it’s part of the book we’re writing), so that I have a complete schema of the better function to use, depending on the round operation I need to do. Here is the list of functions used and then the results shown for a relevant set of values. FLOOR = FLOOR( Tests[Value], 0.01 ) TRUNC = TRUNC( Tests[Value], 2 ) ROUNDDOWN = ROUNDDOWN( Tests[Value], 2 ) MROUND = MROUND( Tests[Value], 0.01 ) ROUND = ROUND( Tests[Value], 2 )...(read more)

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  • Perspective Is Everything

    - by juanlarios
    Sitting on a window seat on my way back from Seattle I looked out the window and saw the large body of water. I was reminded of childhood memories of running as hard as I could through burning hot sand with the anticipation of the splash of the ocean. Looking out the window the water appeared like a sheet draped over land. I couldn’t help but ponder how perspective changes everything.  Over the last several days I had a chance to attend the MVP Summit in Redmond. I had a great time with fellow MVP’s and the SharePoint Product Group. Although I can’t say much about what was discussed and what is coming in the future, I want to share some realizations I had while experiencing the MVP summit.  The SharePoint Product is ever-improving, full of innovation but also a reactionary embodiment of MVP, client and market feedback. There are several features that come to mind that clients complain about where I have felt helpless in informing them that the features are not as mature as they would like it. Together, we figure out a way to make it work and deal with the limitations. It became clear that there are features that have taken a different purpose in the market place from the original vision. The SP Product group is working hard to react to these changes in vision and make SharePoint better for real life implementations.  It is easy to think that SharePoint should be all things to all people. In reality there are products that are very detailed in specific composites, they do this one thing well but severely lack in other areas.  Its easy sometimes to say, “What was Microsoft thinking with this feature?” the Product group is doing all they can to make the moving pieces better and dealing with challenges with having all of them work together.  Sometimes the features don’t fully embody the vision because of the many challenges, but trust me when I say the product group is really focused on delivery and innovation.  As I was speaking with a fellow MVP throughout the session, we spoke about the iPad 2(ironically announced this past week during the MVP summit) and Microsoft’s possible product answer; I realized the days of reactionary products from MS is over. There are many users that will remember Vista and the painful execution in that product, but there has been a lot of success in Windows 7. There was no rush for a reactionary answer to the Nintendo Wii, as a result a ground breaking and game changing product was brought to market, the XBOX –Kinect! I can’t say much here, but it’s safe to say, expect innovation, and execution of products and technology that will change the market instead of react to them!       There are many things I learned and I would love to share that have to do with perspective, technology, etc… but this is far as I can go in details. This might not be new to you or specifically the message that was shared during the summit. These are just my impressions of the event and the spirit of future vision. Great things ahead!

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  • Something about Property Management or &hellip; the understanding of SharePoint Admins/roles ?!?

    - by Enrique Lima
    When I talk about SharePoint, for some reason it comes to my mind as if it were property management and all the tasks associated with it. So, imagine you have a lot ( a piece of land of sorts), you then decide there is something you want to do with it.  So, you make the choice of having a building built.  Now, in order to go forward with your plan, you need to check what the rules/regulations are.  Has is it been zoned residential, commercial, industrial … you get the idea.  This to me sounds like Governance.  The what am I to do given a defined set of rules. We keep on moving forward based on those rules.  And with this we start the process of building, the building process takes us to survey the land, identify what our boundaries are.  And as we go along we start getting the idea in our head as to what we will do as far as the building goes.  We identify the essentials of the building, basic services and such.  All in all, we plan.  And as with many things we do, we like solid foundations.  What a solid foundation looks like will depend on where and what we build.  The way buildings are built depends in many ways in being able to foresee the potential for natural disasters or to try to leverage the lay of the land.  Sound familiar?  We have done our Requirements Gathering. We have the building in place, we have followed the zoning rules, we have implemented services.  But we need someone to manage the building, now we move on to the human side of the story.  We want to establish a means to normalcy in the building, someone that can be the monitoring agent as to the “what’s going on?” of it.  This person will be tasked with making sure all basic services are functional, that measures are taken if there is an issue and so on.  Enter the Farm Administrator. In a way, we establish an extension of the rules to make sure the building and the apartments/offices build follow a standard set of rules too. Now, in turn you will have people leasing or buying the apartments/offices, they will be the keepers of that space.  So, now we are building sites, we have moved from having the building (farm) ready, to leasing/selling offices/apartments (site collections).  There will be someone assuming responsibility for those offices, that person will authorize or be informed about activities and also who not only gets a code into the building, but perhaps a key to the office.  Enter Site Collection Administrator.  And then perhaps we move on to the person that would be responsible for specifics within the office, for example a Human Resources Manager or Coordinator.  They will have specific control and knowledge about people.  A facilities coordinator, and so on.  I would translate that into Site Administrators. With that said then, we identify the following: Role Name Responsibility (but not limited to) Farm Administrator Infrastructure Site Collection Admin Policies for Content, Hierarchy, Recycle Bin, Security and Access Site Owner (Site Admin) Security and Access, Training, Guidance, Manage Templates All in all there are different levels of responsibility to be handled, but it is very important to understand what they are and what they mean. Here is a link to very well laid out explanation on this … http://www.endusersharepoint.com/2009/08/11/site-managers-and-end-user-expectations-roles-and-responsibilities/

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  • PASS Summit '12, Day One

    - by AaronBertrand
    I had an incredibly interesting experience getting to Seattle this week. I flew out of Providence through Philadelphia. Apparently there was some smoke in one of the towers at PHL, so our flight was an hour delayed. I missed my connection by three minutes . I was absolutely amazed that after a one-hour, full ground stop, flights shortly afterward were leaving exactly on time. It was like anti-Aaron magic. I got to the gate and watched my plane back away. My luggage never would have made it but it...(read more)

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  • Analysing Indexes - count *

    - by GrumpyOldDBA
    In my presentations on indexing I have always said that you should explore the advantages of covering your clustered index with a secondary index. In circumstances where you might want to just return values form the PK ( assuming it's your clustered index ) a secondary index will be more efficient especially when the row size is wide. Any operation on a clustered index will always return the entire row, so select ID from dbo.mytable where ID is the clustered PK integer will return not just the...(read more)

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  • PASS: Budget Status

    - by Bill Graziano
    Our budget situation is a little different this year than in years past.  We were late getting an initial budget approved.  There are a number of different reasons this occurred.  We had different competing priorities and the budget got pushed down the list.  And that’s completely my fault for not making the budget a higher priority and getting it completed on time. That left us with initial budget approval in early August rather than prior to June 30th.  Even after that there were a number of small adjustments that needed to be made.  And one large glaring mistake that needed to be fixed.  We had a typo in the budget that made it through twelve versions of review.  In my defense I can only say that the cell was red so of course it had to be negative!  And that’s one more mistake I can add to my long and growing list of Mistakes I’ll Never Make Again. Last week we passed a revised budget (version 17) with this corrected.  This is the version we’re cleaning up and posting to the web site this week or next.

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  • Geek City: A Hint of Degrees

    - by Kalen Delaney
    This is just a quick post to describe a test I just ran to satisfy my own curiosity. I remember when Microsoft first introduced the query hint OPTION (MAXDOP N). We already had the configuration option ‘max degree of parallelism’, so there were lots of questions about how the hint interacted with the configuration option. Some people thought the configuration option set an absolute maximum, and the hint could only specify something less than that value to be meaningful. Other people thought differently,...(read more)

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  • Rules of Holes #3 -A Better Shovel is NOT the Answer!

    - by ArnieRowland
    You stopped digging. You looked around and saw that you were still in the Hole. You needed to get out. AHA! Problem solved, you thought. You'll just get a better and more efficient shovel! Sorry, I have to tell you that switching to a more efficient shovel is unlikely to help you get out of the Hole. Yes, your resumed digging may be faster, more directed, and even well planned and articulated. But you will still be in the Hole, and digging. And that's just not the solution. A new process (scrum,...(read more)

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  • Hyper-V CPU Utilization, Good Tools?

    - by yzorg
    I just learned a ton from this post: Host CPU% doesn't include child VM CPU%, specifically I learned that both the 'host OS' and 'child VM' are siblings within the HyperVisor layer. Are there good utilities for 'watching' the total CPU and other resource counters at the HyperVisor (hardware) layer? I know perfmon (watching special Hyper-V CPU counters) is the standard answer, but I've stayed away from perfmon for ad-hoc monitoring. Is there a good OSS or free tools to 'watch' the resource utilization as I create multiple new VMs running on the server? I'm a developer, so if there aren't any good UI tools to surface this data I'd consider creating one, but only if needed. P.S. My specific scenario is I'm creating new web, SQL and back-end server VMs for new Windows 8 Server and SQL 2012 (entire application stack). I need to monitor them for utilization and know when I need to grow beyond 1 host (I'll need to split the VMs into separate hosts as I hit hardware limits of the 1st host, and diagnose problems).

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  • Genetic Considerations in User Interface Design

    - by John Paul Cook
    There are several different genetic factors that are highly relevant to good user interface design. Color blindness is probably the best known. But did you know about motion sickness and epilepsy? We’ve been discussing how genetic factors should be considered in user interface design in one of my classes at Vanderbilt University School of Nursing. According to the National Library of Medicine, approximately 8% of males and 0.5% of females have red-green color discrimination problems with the most...(read more)

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  • Denormalization Strategies

    In building a database, typically we want a well normalized design. However there are cases for considering options for denormalization in complex systems. Timothy Claason gives you some thoughts on the subject.

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  • Rules of Holes #4 -Do You Have the BIG Picture?

    - by ArnieRowland
    Some folks decry the concept of being in a 'Hole'. For them, there is no such thing as 'Technical Debt', no such thing as maintaining weak and wobbly legacy code, no such thing as bad designs, no such thing as under-skilled or poorly performing co-workers, no such thing as 'fighting fires', or no such thing as management that doesn't share the corporate vision. They just go to work and do their job, keep their head down, and do whatever is required. Mostly. Until the day they are swallowed by the...(read more)

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  • Community is Great

    - by GrumpyOldDBA
    I have a great respect for so many who contribute to the community, without them I would often struggle in my role for sure. When "strange events" happen in a busy production environment it can be quite daunting when it seems everyone around is expecting you to have the answer/solution at your finger tips. I'm indebted to Paul White http://sqlblog.com/blogs/paul_white/default.aspx in confirming I'd found a bug and doing all the hard work including raising a connect item https:/...(read more)

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