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  • Data Mining Algorithms – Hierarchical Clustering

    Clustering is the process of grouping the data into classes or clusters so that objects within a cluster have high similarity in comparison to one another, but are very dissimilar to objects in other clusters. Dissimilarities are assessed based on the attribute values describing the objects. There are a large number of clustering algorithms. The ...
    Posted to Dejan Sarka (Weblog) by Dejan Sarka on March 28, 2015
  • Off to Richmond for SQL Saturday

    I got the email prodding speakers to blog about our upcoming sessions, so I got myself up and started to write this blog. It has been such a long time since I have done much side SQL work (other than doing quite a bit of tech editing, along with doing some work for PASS leading up to speaker submissions), that my blog didn't even show up in the ...
    Posted to Louis Davidson (Weblog) by drsql on March 13, 2015
  • SQLRally Nordic - after conference thoughts

    Hello All I was extremely honored to be able to participate in the SQLRally Nordic this year. The event took place this week in Copenhagen and I think it was a great success - from every angle. Many thanks to the organizers and many thanks to the community for being in that place. There was a great atmosphere during the whole event and what I ...
    Posted to Damian Widera (Weblog) by Damian Widera on March 6, 2015
  • Data Mining Algorithms – an Introduction

    Data mining is the most advanced part of business intelligence. With statistical and other mathematical algorithms, you can automatically discover patterns and rules in your data that are hard to notice with on-line analytical processing and reporting. However, you need to thoroughly understand how the data mining algorithms work in order to ...
    Posted to Dejan Sarka (Weblog) by Dejan Sarka on February 19, 2015
  • T-SQL Querying

    We are close to the publishing day of the T-SQL Querying book. Of course, like always in this series, the main author of the book is Itzik Ben-Gan. This time, besides me, Adam Machanic and Kevin Farlee are the coauthors. The information I want to share now is that you can get a substantial discount if you preorder the book today, Monday, February ...
    Posted to Dejan Sarka (Weblog) by Dejan Sarka on February 16, 2015
  • SQL Server 2012 SP2 Cumulative Update 4 Released - information from the SQL Server SE Operations Team

    As per information from Microsoft: ''It is my pleasure to announce the release of SQL Server 2012 SP2 Cumulative Update 4 on behalf of the team.  SQL Server 2012 SP2 Cumulative Update 4 incorporates 42 issues. This CU will be available for download from the associated cumulative KB article that has also been ...
    Posted to Damian Widera (Weblog) by Damian Widera on January 20, 2015
  • Getting Started with SSIS: Get the Software and Tools

    People often ask me for tips on getting started with SSIS. My advice is always the same: Get a copy of SQL Server Developer Edition. At the time of this writing, the current version of SQL Server is SQL Server 2014. If you work in an organization that uses SQL Server, you may be able to obtain a copy of SQL Server 2014 Developer Edition from ...
    Posted to Andy Leonard (Weblog) by andyleonard on January 1, 2015
  • PASS SQL Saturday #356 Slovenia Recapitulation

    So the event is over. I think I can say for all three organizers, Mladen Prajdić, Matija Lah, and me, that we are tired now. However, we are extremely satisfied. It was a great event. First few numbers and comparison with SQL Saturday #274, the first SQL Saturday Slovenia event that took place last year. ...
    Posted to Dejan Sarka (Weblog) by Dejan Sarka on December 15, 2014
  • Columnstore Indexes in SQL Server 2014: Flipping the DW /faster Bit at #SQLSaturday347 / #SQLSatDC

    This weekend on December 6, 2014 I continue my evangelization of Columnstore—possibly the most exciting unheralded feature in SQL Server 2014—at SQL Saturday 347 at an auspicious venue: the Microsoft Technology Center in Chevy Chase, proximal to the US capital city of Washington DC. Register, see the schedule, or see the event home page on the ...
    Posted to Jimmy May (Weblog) by aspiringgeek on December 5, 2014
  • It’s That Time of Year to Think About Your Career

    If you work with SQL Server (or want to work with SQL Server), this is a good time of the year to think about your career. Why? It’s the holiday season and you should have some time off… unless you have a Crappy Job. You can use some of this time to advance your knowledge about SQL Server, especially the new version: SQL Server 2014. How? You can ...
    Posted to Andy Leonard (Weblog) by andyleonard on December 5, 2014
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