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  • Simulating Bad Networks to Test SQL Server Replication

    SQL Server Replication usually works just fine when testing in a development environment where theres low latency and high bandwidth. Real world conditions arent always like that. Ive published instructions on how to use the free WANem network emulator to simulate poor network conditions such as when SQL Server has to replicate over a satellite ...
    Posted to John Paul Cook (Weblog) by John Paul Cook on January 1, 2018
  • Workaround for SQL Server 2017 PolyBase Installer Bug

    To install PolyBase on SQL Server 2016 or 2917, there is a dependency on the Oracle Java Runtime Environment (JRE). Oracle made a breaking change to the JRE from version 8 to 9. I published a workaround that is available here.
    Posted to John Paul Cook (Weblog) by John Paul Cook on December 12, 2017
  • Learn Cosmos DB in edX Course

    Sign up for the new edX course Developing Planet-Scale Applications in Azure Cosmos DB at
    Posted to John Paul Cook (Weblog) by John Paul Cook on October 1, 2017
  • re: Can Uber, Lyft, and Waze Save Lives in Natural Disasters?

    The great successes in hurricane Harvey relief have often come from people focusing on doing the right thing. I don't think the Cajun Navy worries about insurance.
    Posted to John Paul Cook (Weblog) by John Paul Cook on August 30, 2017
  • Can Uber, Lyft, and Waze Save Lives in Natural Disasters?

    After working as a registered nurse and volunteer firefighter during hurricane Harvey, I came up with ideas on how Uber, Lyft, and Waze could help. See my article on LinkedIn here.
    Posted to John Paul Cook (Weblog) by John Paul Cook on August 30, 2017
  • Houston, Hurricane Harvey, and Technology

    Many people are staying in shelters after being displaced by the flooding caused by hurricane Harvey. There were requests made for mental health professionals to go to shelters and talk to people who need help. People with professional credentials were willing to help. Floodwaters prevented some of the willing and qualified to be able to get to ...
    Posted to John Paul Cook (Weblog) by John Paul Cook on August 29, 2017
  • SQL 101 Learn SQL. Not too much. Mostly online.

    Ive had people ask me how to learn SQL without installing a database. This past Sunday afternoon I saw a packed class of current and aspiring data scientists learn SQL in a great class taught by Ted Petrou. You can indeed learn SQL for free without installing anything. Let me paraphrase Michael Pollan, well known for Eat food. Not too much. ...
    Posted to John Paul Cook (Weblog) by John Paul Cook on August 21, 2017
  • Your Personal Health in Information Technology

    How is your health? How is your job in information technology affecting your health? I want to know! Since I started blogging here almost a decade ago as a new Microsoft Most Valuable Professional, Ive become a registered nurse and now Im a full-time psychiatric nurse practitioner student. There are articles and studies purporting that ...
    Posted to John Paul Cook (Weblog) by John Paul Cook on July 30, 2017
  • SQL Server Dump Analyzer

    Recently Microsoft released a preview version of the SQL Server Diagnostics extension to SSMS. You can read more about it here. I downloaded it from here and you can see the results below. If you install the extension while SSMS is up and running, youll have to stop and restart SSMS in order to see the new menu option. Figure 1. SQL Server ...
    Posted to John Paul Cook (Weblog) by John Paul Cook on July 11, 2017
  • BI Beginner: Using R Forecasting Visualization

    There are new HTML 5 enabled custom visualization for making interactive R visualizations in Power BI Desktop. Read the documentation and find the download links here. Because of the dependency on R packages that are loaded with the R library command. The end result is that your required R packages end up installed in your machines R library. ...
    Posted to John Paul Cook (Weblog) by John Paul Cook on June 25, 2017
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