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October 2020

Oracle Cloud Infrastructure: using Network Security Groups and the caveat with the subnet’s default security list

This is going to be one of these posts I’m mainly writing to myself, in the hope that a) I don’t forget about that topic too soon and b) someone might have the same question and doesn’t want to spin up an environment to find out.

Broadly speaking Oracle Cloud Infrastructure (and some other cloud providers) give you 2 different means of securing the Virtual Cloud Network at the VCN level:

The Spearhead Theme: A Minimal Design and Clean Slate for All Content Creators

When AngelList and Venture Hacks co-founder Babak Nivi came to us and wanted to donate a theme, our team was excited to work on the design to make it available to everyone on WordPress.com for free. Designed by Cece Yu and originally developed for the Spearhead podcast, the new Spearhead theme is fully block-powered and the first among our themes to support dark mode.

Expert Advice: How to Improve Remote Education Collaboration

As we’re witnessing with schools and learning communities around the world, education is shifting dramatically. With the right set of tools, your class, team, or group can learn to communicate and collaborate more efficiently online. Since our company was founded over fifteen years ago, the people behind the scenes at WordPress.com have worked from home — or from anywhere they choose in the world — and have learned a lot along the way.

Introducing Patterns: Prebuilt Blocks for Beautifully Designed Websites

The WordPress Editor is a powerful tool that can help bring your design ideas to life but one of the best parts is, you don’t have to start from scratch. Building sophisticated designs can be as easy as picking Patterns from our growing library, and snapping them together to create beautiful-looking posts and pages. As of today, we’re now offering over 100 individual Patterns — with more being added all the time!

If you’ve never used Patterns before we’ve got an introduction to help you get started and also highlight some new features.

The best way to introduce Patterns is to use them. Here’s how you can add them to a post or a page on WordPress.com.

Upgrading oraclelinux-release-el7 might trigger an upgrade to UEK Release 6

While building a demo environment for an upcoming presentation I noticed an upgrade from UEK 5 to UEK 6 on my Oracle Linux 7 VM. As it turned out, the kernel change has been triggered by an upgrade of oraclelinux-release-el7 RPM. I am a great fan of Oracle’s UEK and the team behind it, so this is a welcome change for me. It might however meet you unprepared, which is why I put this little article together.

Whether or not the contents of my article applies to you depends on your yum configuration, and the source of your packages.

APEX 20.2 comes to town (well, to my PC)

As always, you should read the Installation/Upgrade manual from top to bottom before upgrading any piece of software, and be aware of all of the pre-requisites and processes.  But for me, my Application Express 20.2 upgrade was as simple as:

  • Download Application Express
  • Unzip to my target location
  • sqlplus / as sysdba
    • SQL> @apexins.sql SYSAUX SYSAUX TEMP /i/
  • Validate my ORDS installation
    • java -jar ords.war validate
  • sqlplus / as sysdba

And voila! A freshly upgraded Application Express in a matter of minutes…

Enforcing a re-parse of a cursor in Autonomous Database. Using a hammer

While setting up a demo environment in my Autonomous Database I found that one of my tuning techniques – evicting a cursor from the shared pool – isn’t quite as straight forward as it could be. In fact, at the time of writing it wasn’t possible to force a cursor reparse in Autonomous Database (to the best of my knowledge).

The problem

Executing my flush.sql script failed, and from what I can tell, dbms_shared_pool is not exposed to users in Autonomous Transaction Processing database at the moment:

Video : Scalable Sequences in Oracle Database 18c Onward

In today’s video we’ll discuss Scalable Sequences, which were documented for the first time in Oracle 18c.

The video is based on this article.

The star of today’s video is David Peak, who is now working on the Oracle Pandemic Response Systems. This video is a throwback to a hotel we stayed in at São Paulo a few years back.

Cheers

Tim…

Vagrant & Docker Builds : APEX 20.2 and other updates

The recent release of APEX 20.2 has triggered a build frenzy.

Vagrant

All my GitHub Vagrant builds that include APEX have been updated to APEX 20.2. The builds themselves are unchanged. This was literally an update to the environment files, so it took longer to test the builds than it did to make the changes.