Blog Post: CDB Views and Query Optimizer Cardinality Estimations

Blog Post: CDB Views and Query Optimizer Cardinality Estimations

Today I faced a performance problem caused by a bad cardinality estimation involving a CDB view in a 12.1.0.2 multitenant environment. While solving the problem I did a number of observations that I try to summarize in this blog post. First of all, when checking the execution plan of a query already running for more […]

Blog Post: DBCA (Oracle 12.2) Vorlage für das Enterprise Manager Cloud Control 13c Release 2 Repository

Blog Post: DBCA (Oracle 12.2) Vorlage für das Enterprise Manager Cloud Control 13c Release 2 Repository

Bekanntermassen braucht der Oracle Enterprise Manager Cloud Control 13c Release 2 genauso wie seine Vorgänger eine Repository-Datenbank. Diese kann eine Oracle 12.1.0.2-Datenbank oder eine Oracle 12.2-Datenbank sein (12.2.0.1). Leider stellt Oracle auf dem Oracle Technet (http://www.oracle.com/technetwork/oem/enterprise-manager/downloads/db-templates-3233309.html) nur DBCA-Vorlagen für Oracle … Weiterlesen →

Blog Post: Last Week in Stream Processing & Analytics – 15.1.2018

Blog Post: Last Week in Stream Processing & Analytics – 15.1.2018

This is the 98th edition of my blog series blog series around Stream Processing and Analytics! As every week I was also updating the following two lists with the presentations/videos of the current week: Presentations from SlideShare Videos from YouTube As usual, find below the new blog articles, presentations, videos and software releases from last […]

Blog Post: BigDecimal rounding to the nearest 5 cents with Java’s BigDecimal

Blog Post: BigDecimal rounding to the nearest 5 cents with Java’s BigDecimal

Recently I hat to implement a function that would round to the nearest 5 cents and after googling around a bit I found bits and pieces here and there but none just worked for me, so below you can find a function that should do just that /** * Rounds a decimal number to the nearest 5 cents using the following rules * * Rounding rules : * – 0.1299 = 0.10 * – 0.1300 = 0.15 * – 0.1799…

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Blog Post: Announcing participants in Oracle Dev Gym SQL Championship 2017

Blog Post: Announcing participants in Oracle Dev Gym SQL Championship 2017

Another year, another Oracle Dev Gym SQL Annual Championship. Woohoo! Players have exercised their mental muscles with the SQL puzzles throughout 2017. Congratulations to everybody digging in all year, trying to figure out the pretzelbenders of me and other quiz authors. And hopefully you’ve learned something as well, improving your SQL skills. And a very special congratulations to the Top 50 in the „Select for SQL“ Tournament in Oracle Dev Gym in 2017. It takes an effort solving the quizzes…

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User: Dave Halstead

User: Dave Halstead

Expertise Questions about standards, helmet testing, performance, injury reduction, biomechanics of head and neck injuries and other technical helmet issues that might increase education, knowledge and awareness of helmets, the limitations and benefits of wearing them. Past/Present Clients Nearly every helmet company world wide What do you like about this subject? It is very challenging and includes aspects of engineering, design and medicine as well as good investigation skills. What do you still hope to achieve/learn in this field? Find…

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Blog Post: Last Week in Stream Processing & Analytics – 8.1.2018

Blog Post: Last Week in Stream Processing & Analytics – 8.1.2018

This is the 97th edition of my blog series blog series around Stream Processing and Analytics! As every week I was also updating the following two lists with the presentations/videos of the current week: Presentations from SlideShare Videos from YouTube As usual, find below the new blog articles, presentations, videos and software releases from last […]

Blog Post: Last Week in Stream Processing & Analytics – 1.1.2018

Blog Post: Last Week in Stream Processing & Analytics – 1.1.2018

Happy New Year! This is the 96th edition of my blog series blog series around Stream Processing and Analytics! As every week I was also updating the following two lists with the presentations/videos of the current week: Presentations from SlideShare Videos from YouTube As usual, find below the new blog articles, presentations, videos and software […]