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  • Speakers, Please Check Your Time

    - by AjarnMark
    Woodrow Wilson was once asked how long it would take him to prepare for a 10 minute speech. He replied "Two weeks". He was then asked how long it would take for a 1 hour speech. "One week", he replied. 2 hour speech? "I'm ready right now," he replied.  Whether that is a true story or an urban legend, I don’t really know, but either way, it is a poignant reminder for all speakers, and particularly apropos this week leading up to the PASS Community Summit. (Cross-posted to the PASS Professional Development Virtual Chapter blog #PASSProfDev.) What’s the point of that story?  Simply this…if you have plenty of time to do your presentation, you don’t need to prepare much because it is easy to throw in more and more material to stretch out to your allotted time.  But if you are on a tight time constraint, then it will take significant preparation to distill your talk down to only the essential points. I have attended seven of the last eight North American Summit events, and every one of them has been fantastic.  The speakers are great, the material is timely and relevant, and the networking opportunities are awesome.  And every year, there is one little thing that just bugs me…speakers going over their allotted time.  Why does it bother me so?  Well, if you look at a typical schedule for a Summit, you’ll see that there are six or more sessions going on at the same time, and only 15 minutes to move from one to another.  If you’re trying to maximize your training dollar by attending something during every session time slot, and you don’t want to be the last guy trying to squeeze into the middle of the row, then those 15 minutes can be critical.  All the more so if you need to stop and use the bathroom or if you have to hike to the opposite end of the convention center.  It is really a bad position to find yourself having to choose between learning the last key points of Speaker A who is going over time, and getting over to Speaker B on time so you don’t miss her key opening remarks. And frankly, I think it is just rude.  Yes, the speakers are the function, after all they are bringing the content that the rest of us are paying to learn.  But it is also an honor to be given the opportunity to speak at a conference like this, and no one speaker is so important that the conference would be a disaster without him.  Speakers know when they submit their abstract, long before the conference, how much time they will have.  It has been the same pattern at the Summit for at least the last eight years.  Program Sessions are 75 minutes long.  Some speakers who have a good track record, and meet other qualifying criteria, are extended an invitation to present a Spotlight Session which is 90 minutes (a 20% increase).  So there really is no excuse.  It’s not like you were promised a 2-hour segment and then discovered when you got here that it was only 75 minutes.  In fact, it’s not like PASS advertised 90-minute sessions for everyone and then a select few were cut back to only 75.  As a speaker, you know well before you get here which type of session you are doing and how long it is, so as a professional, you should plan accordingly. Now you might think that this only happens to rookies, but I’ll tell you that some of the worst offenders are big-name veterans who draw huge attendance numbers for their sessions.  Some attendees blow this off as, “Hey, it’s so-and-so, and I’d stay here for hours and listen to him/her talk.”  To which I would reply, “Then they should have submitted for a pre- or post-conference day-long seminar instead, but don’t try to squeeze your day-long talk into a 90-minute session.”  Now I don’t really believe that these speakers are being malicious or just selfishly trying to extend their time in the spotlight.  I think that most of them are merely being undisciplined and did not trim their presentation sufficiently, or allowed themselves to get off-track (often in a generous attempt to help someone in the audience with a question or problem that really should have been noted for further discussion after the session). So here is my recommendation…my plea, even.  TRIM THE FAT!  Now.  Before it’s too late.  Before you even get on the airplane, take a long, hard look at your presentation and eliminate some of the points that you originally thought you had to make, but in reality are not truly crucial to your main topic.  Delete a few slides.  Test your demos and have them already scripted rather than typing them during your talk.  It is better to cut out too much and end up with plenty of time at the end for Questions & Answers.  And you can always keep some notes on the stuff that you cut out so that you could fill it back in at the end as bonus material if you really do end up with a whole bunch of time on your hands.  But I don’t think you will.  And if you do, that will look even better to the audience as it will look like you’re giving them something extra that not every audience gets.  And they will thank you for that.

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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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  • 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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  • PowerPivot, Stocks Exchange and the Moving Average

    - by AlbertoFerrari
    In this post I want to analyze a data model that perform some basic computations over stocks and uses one of the most commonly needed formula there (and in many other business scenarios): a moving average over a specified period in time. Moving averages can be very easily modeled in PowerPivot, but there is the need for some care and, in this post, I try to provide a solid background on how to compute moving averages. In general, a moving average over period T1..T2 is the average of all the values...(read more)

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  • March 2012 - SSIS Training in London!

    - by andyleonard
    I am honored to announce I will be delivering From Zero To SSIS! in London, England 5-9 Mar 2012. This course is delivered in cooperation with my friends at TechniTrain who provide awesome training by talented technologists like Chris Webb ( Blog ), Gavin Payne ( Blog ), and Christian Bolton ( Blog ). This opportunity grew out of conversations at SQLBits 9 in Liverpool in September 2011. I had an awesome time at SQLBits and encourage everyone to attend the conference if you have the opportunity to...(read more)

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  • Google confirme l'existence d'une tablette Nexus 10 pour concurrencer l'iPad, alors que sa Nexus 7 séduit de plus en plus les bidouilleurs

    Google confirme l'existence d'une Nexus 10 Alors que sa tablette Nexus 7 séduit de plus en plus les bidouilleurs Une Nexus 10. C'est ce qu'a utilisé Vic Gundotra, vice-président de Google en charge de l'ingénierie, pour prendre des photos de vacances qu'il a ensuite publiées sur sa page Google+. Le haut-dirigeant a donc confirmé de facto que l'entreprise allait bien sortir une nouvelle tablette grand format pour concurrencer l'iPad. Une confirmation qui n'a pas pris la forme habituelle d'une déclaration mais que l'on retrouve retrouve dans les méta-données, relevées par le site The Verge, des photos de Vic Gundotra. [IMG]http://ftp-developpez.co...

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  • Microsoft sort une version d'évaluation de Windows Server 2008 R2 Hyper-V, sa solution de virtualisa

    Mise à jour du 30/03/10 Microsoft sort un ensemble de solutions pour la virtualisation dans Windows Server 2008 R2 Découvrez Windows Server 2008 R2 Hyper-V, System Center et Live Migration Microsoft semblait vouloir mettre les bouchées double dans la virtualisation du poste de travail aussi bien dans Windows 7 que dans Windows Server 2008 R2 (lire ci-avant). Il le confirme aujourd'hui en proposant de découvrir son nouvel ensemble de solutions de virtualisation pour ce dernier. Avec Hyper V, la virtualisation de serveur devient en effet une fonction de base de Windows Server 2008 R2. "Vous pouvez donc consolider sans surcoût vos serveurs phy...

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  • Many-to-many relationships in pharmacology

    - by John Paul Cook
    When I was in my pharmacology class this morning, I realized that the instructor was presenting a classic relational database management system problem: the many-to-many relationship. He said that all of us in nursing school must know our drugs backwards and forwards. I know how to model that! There are so many things in both healthcare and higher education that could benefit from an appropriate application of technology. As a student, I'd like to be able to start with a drug, a disease, a name of...(read more)

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  • SSRS 2008 R2 KPIs with bullet graphs

    Key Performance Indicators are typically displayed in a scorecard with stop light indicators, which are either red, amber or green light icons. The limitation for these kind of indicators is that you can see the actual and target values in two different fields as well as see the status of the KPI in red, amber or green color. If the user wants to figure out the thresholds associated with the KPI, these values are generally not visible. Further, representing the threshold values in the scorecard itself defeats the purpose of the scorecard. The scorecard should display the KPI's status in the most summarized form and use a minimal amount of space on the dashboard. In this tip we would look at how to address this issue.

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  • INVITATION: Formez-vous sur la solution Oracle Database Appliance !

    - by mseika
    Formez-vous sur la solution Oracle Database Appliance ! Cher partenaire, Arrow a le plaisir de vous inviter au bootcamp ODA - Oracle Database Appliance - qui aura le 30 octobre prochain à Colombes, dans les locaux d’Oracle France. Venez découvrir comment conquérir de nouveaux marchés grâce à lanouvelle appliance base de données Oracle! Arrow vous propose une demi-journée pour comprendre ODA et démontrer les bénéfices de cette solution accessible à tous. Au programme de cet après-midi de formation : une démonstration réalisée en temps réel sur la machine Arrow, déplacée pour l’occasion et de multiples échanges avec notre spécialiste ODA , Stéphane KIDJO, Consultant Avant-Vente chez Arrow. AGENDA : 14h00 - Accueil-café14h20 – Lancement de la démonstration :• Présentation et installation de l’appliance• Présentation de la solution : positionnement marché, bénéfices• Proposition de valeur• Une solution tarifaire attractive 16h00 - De nouvelles opportunités pour vendre Oracle 11g R2 et ses options 16h30 – Désinstallation de l’appliance 16h45 – Questions & Réponses 17h00 – Echanges autour d’un goûter Ce workshop est gratuit. Pré-inscription obligatoire. Nombre de places limité.

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  • Is the Internet Making us Smarter or Not?

    - by BuckWoody
    I’ve been reading recently about an exchange among some very bright folks, some who posit that the Internet with its instant-on, sometimes-right, big-statement-wins mentality is making people think in a more shallow way, teaching us to rely on others as experts and diluting our logical thought process. Others state that it broadens our perspective and extends our mental reach. Whenever I see this kind of exchange on two ends of a spectrum, I begin to wonder if both sides might be correct.   I can certainly say that I have changed my way of learning, reading, and social interactions because of the Internet. And my tolerance for reading long missives has indeed gone down. I tend to (mentally and literally) “bookmark” things I never seem to have time to get back to. But I also agree that I’ve been exposed to thoughts, ideas and people I never would have encountered any other way. So how to deal with this dichotomy?   Well, I’m going to go off and think about it. No, I’m really going to go off for a full week to a cabin I’ve rented in a National Forest in the Midwest. It has no indoor plumbing, phones, Internet connections or anything else – only a bed to sleep in and a place to cook a little. I’m taking one book, some paper, and a guitar with me and that’s it. I plan to spend my days walking, reading a little, playing a little on the guitar, but mostly just thinking. Those of you who know me might find this unusual. I’m an always-on, hyper-caffeinated, overly-busy, connected person. I haven’t taken a vacation in five years, at least for more than two or three days at a time. Even then, I keep us on the move constantly – our vacations aren’t cruises or anything like that. I check e-mail, post and all that. When I’m not on vacation, I live with and leverage lots of technology, and work with those that do the same. This, however, is a really “unplugged” event, and I’m hoping that it will let me unpack the things I’ve been stuffing in my head. I plan to spend a lot of time on a single subject, writing notes, thinking, and writing more notes.   So after I post tomorrow's “quote of the day” I’ll be “going dark” for a week. No twitter, FaceBook, LinkedIn, e-mail, chat, none of my five blogs will get updated, and I’ll have to turn in my two articles for InformIT.com early. I won’t have access to my college class portal, so my students will be without me for a week. I will really be offline. I’ll see you in a week – hopefully a little more educated. See you then.   Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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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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  • Salon LesJeudis.com : plus de 1.500 postes IT à pourvoir le jeudi 12 avril à Paris, les codes QR remplacent les CV

    Salon LesJeudis.com : plus de 1.500 postes IT à pourvoir Le jeudi 12 avril à Paris, les codes QR remplacent les CV LesJeudis.com organise un nouveau salon de recrutement ce jeudi 12 avril au CNIT de la Défense de 11h à 21h. Une initiative bienvenue pour tous les développeurs qui recherchent un emploi ou un nouveau poste. Plus de 1.500 postes seront à pourvoir. Parmi les nombreuses entreprises qui seront à la recherche de candidats citons les habituels Sogeti, Accenture ou Steria mais aussi des entreprises comme Parrot, la RATP, Ericsson, GDF-Suez ou AXA. Chaque candidat aura la possibilité de soumettre son profil à un consultant en ressources humaine...

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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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  • Is the Internet Making us Smarter or Not?

    - by BuckWoody
    I’ve been reading recently about an exchange among some very bright folks, some who posit that the Internet with its instant-on, sometimes-right, big-statement-wins mentality is making people think in a more shallow way, teaching us to rely on others as experts and diluting our logical thought process. Others state that it broadens our perspective and extends our mental reach. Whenever I see this kind of exchange on two ends of a spectrum, I begin to wonder if both sides might be correct.   I can certainly say that I have changed my way of learning, reading, and social interactions because of the Internet. And my tolerance for reading long missives has indeed gone down. I tend to (mentally and literally) “bookmark” things I never seem to have time to get back to. But I also agree that I’ve been exposed to thoughts, ideas and people I never would have encountered any other way. So how to deal with this dichotomy?   Well, I’m going to go off and think about it. No, I’m really going to go off for a full week to a cabin I’ve rented in a National Forest in the Midwest. It has no indoor plumbing, phones, Internet connections or anything else – only a bed to sleep in and a place to cook a little. I’m taking one book, some paper, and a guitar with me and that’s it. I plan to spend my days walking, reading a little, playing a little on the guitar, but mostly just thinking. Those of you who know me might find this unusual. I’m an always-on, hyper-caffeinated, overly-busy, connected person. I haven’t taken a vacation in five years, at least for more than two or three days at a time. Even then, I keep us on the move constantly – our vacations aren’t cruises or anything like that. I check e-mail, post and all that. When I’m not on vacation, I live with and leverage lots of technology, and work with those that do the same. This, however, is a really “unplugged” event, and I’m hoping that it will let me unpack the things I’ve been stuffing in my head. I plan to spend a lot of time on a single subject, writing notes, thinking, and writing more notes.   So after I post tomorrow's “quote of the day” I’ll be “going dark” for a week. No twitter, FaceBook, LinkedIn, e-mail, chat, none of my five blogs will get updated, and I’ll have to turn in my two articles for InformIT.com early. I won’t have access to my college class portal, so my students will be without me for a week. I will really be offline. I’ll see you in a week – hopefully a little more educated. See you then.   Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • Firefox 16 disponible : ajout du Developer Toolbar et d'un ramasse-miettes incrémental pour JavaScript

    Firefox s'offre une ligne de commande le Developer Toolbar permet d'interagir avec une page, la bêta de la version 16 sort Ce sont les vacances pour certains, mais pas pour la fondation Mozilla qui reste fidèle à son cycle de développement rapide de Firefox. À peine la version 15 du navigateur disponible, son successeur pointe déjà le bout de son nez. Mozilla vient de faire passer Firefox 16 du Canal Aurora au Canal bêta, et vante déjà la nouveauté phare qui sera disponible au sein du navigateur. Firefox 16 dispose d'une nouvelle ligne de commande, permettant aux développeurs d'interagir de façon ...

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  • Les travailleurs IT de plus de 55 ans connaissent le plus gros taux de chômage, pourquoi les entreprises rechignent-elles à les embaucher ?

    Les travailleurs IT de plus de 55 ans connaissent le plus gros taux de chômage, pourquoi les entreprises rechignent à embaucher les anciens ? Le recrutement pour les personnes de plus de 55 ans dans le domaine de l'IT semble être un problème, d'après une étude américaine. Le taux de chômages pour ces tranches d'âge ne cesse d'augmenter depuis deux ans (il est aujourd'hui, aux USA, de 8% pour les hommes, et 9.4% pour les femmes - et de 4.5% tous secteurs confondus-). Pourtant, dans le même temps, plus de postes sont offerts aux 25-54 ans. Nanci Schimizzi, présidente de Women in Technology, dit à ce sujet que les femmes de plus de 50 ans "reste sans emploi pendant de longues périodes, parfois pendan...

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  • Nouvelle version majeure du plugin PHP Documentation pour Google Chrome, elle intègre l'auto-complétion

    Vous connaissez surement le plugin Documentation PHP pour Google Chrome ? Pour rappel, c'est une extension qui permet de rechercher une fonction directement dans le manuel de PHP depuis Google Chrome. En ce jour de l'an, une nouvelle version majeure vient de voir le jour. Elle intègre les 2 fonctionnalités suivantes : La recherche contextuelle : Permet de lancer une recherche depuis une page web en faisant un clique-droit sur un nom de fonction. L'auto-complétion : Permet de simplifier la recherche dans la documentation php en suggérant des noms de fonctions lors de la saisie. Une extension bien pratique pour les développeurs PHP.

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  • Batch Script With SQLCMD Usage

    - by user52128
    Hi All I am Writing a Batch Script Which has to read a set of SQL Files which exists in a Folder then Execute Them Using SQLCMD utiliy. When I am Trying to execute it does not create any output file. I am not sure where I am wrong and I am not sure how to debug the script. Can someone help me out with script? @echo off FOR %F IN (C:\SQLCMD\*.SQL) DO sqlcmd -S LENOVO-C00 -U yam -P yam!@ -i %F -o C:\SEL.txt -p -b IF NOT [%ERRORLEVEL%] ==[0] goto get_Error :Success echo Finished Succesffuly exit /B 0 goto end :get_error echo step Failed exit /B 40 :end

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  • How are Reads Distributed in a Workload

    - by Bill Graziano
    People have uploaded nearly one millions rows of trace data to TraceTune.  That’s enough data to start to look at the results in aggregate.  The first thing I want to look at is logical reads.  This is the easiest metric to identify and fix. When you upload a trace, I rank each statement based on the total number of logical reads.  I also calculate each statement’s percentage of the total logical reads.  I do the same thing for CPU, duration and logical writes.  When you view a statement you can see all the details like this: This single statement consumed 61.4% of the total logical reads on the system while we were tracing it.  I also wanted to see the distribution of reads across statements.  That graph looks like this: On average, the highest ranked statement consumed just under 50% of the reads on the system.  When I tune a system, I’m usually starting in one of two modes: this “piece” is slow or the whole system is slow.  If a given piece (screen, report, query, etc.) is slow you can usually find the specific statements behind it and tune it.  You can make that individual piece faster but you may not affect the whole system. When you’re trying to speed up an entire server you need to identity those queries that are using the most disk resources in aggregate.  Fixing those will make them faster and it will leave more disk throughput for the rest of the queries. Here are some of the things I’ve learned querying this data: The highest ranked query averages just under 50% of the total reads on the system. The top 3 ranked queries average 73% of the total reads on the system. The top 10 ranked queries average 91% of the total reads on the system. Remember these are averages across all the traces that have been uploaded.  And I’m guessing that people mainly upload traces where there are performance problems so your mileage may vary. I also learned that slow queries aren’t the problem.  Before I wrote ClearTrace I used to identify queries by filtering on high logical reads using Profiler.  That picked out individual queries but those rarely ran often enough to put a large load on the system. If you look at the execution count by rank you’d see that the highest ranked queries also have the highest execution counts.  The graph would look very similar to the one above but flatter.  These queries don’t look that bad individually but run so often that they hog the disk capacity. The take away from all this is that you really should be tuning the top 10 queries if you want to make your system faster.  Tuning individually slow queries will help those specific queries but won’t have much impact on the system as a whole.

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  • Did You Know? I'm doing 3 more online seminars with SSWUG!

    - by Kalen Delaney
    As I told you in April , I recorded two more seminars with Stephen Wynkoop, on aspects of Query Processing. The first one will be broadcast on June 30 and the second on August 27. In between, we'll broadcast my Index Internals seminar, on July 23. Workshops can be replayed for up to a week after the broadcast, and you can even buy a DVD of the workshop. You can get more details by clicking on the workshop name, below, or check out the announcement on the SSWUG site at http://www.sswug.org/editorials/default.aspx?id=1948...(read more)

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  • Parameterize Charts using Excel Slicers in PowerPivot

    - by Marco Russo (SQLBI)
    One new nice feature of Excel 2010 is the Slicer. Usually, slicers are used to filter data in a PivotTable. But they might be also useful to parameterize an algorithm or a chart! We discussed this technique in our book , but Alberto Ferrari wrote a post that shows how to use this technique to allow the user to select two stocks that should be compared in an Excel Chart – as you might imagine, this will work also when you will publish the workbook on SharePoint! This is the result: Nice to see that...(read more)

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  • Working with legacy data

    - by John Paul Cook
    We encounter legacy data as a part of life. Colleges and universities have transcript records dating back decades or even centuries. Real estate property records in the United States go as far back as Spanish and British land grants in the 1500s. Very old records are completely paper based and may be completely manually prepared, perhaps typed on a typewriter or written in longhand with a quill pen. How long should transcripts be retained? Nola Ochs graduated from college at age 95 (can you imagine...(read more)

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