Search

Top 60 Oracle Blogs

Recent comments

19c

Video : Using Podman With Existing Dockerfiles (Oracle Database and ORDS)

Today’s video shows me using some of my existing Docker builds with Podman. Specifically a 19c database container and an Oracle REST Data Services (ORDS) container.

For those with an understanding of Docker, it should look really familiar, but it does introduce a twist in the form of a pod.

The video is based on this article.

You can see more information about containers here.

Oracle Database 19c on Fedora 32

https://oracle-base.com/blog/wp-content/uploads/2020/05/f32-final-816x34... 300w, https://oracle-base.com/blog/wp-content/uploads/2020/05/f32-final-816x34... 768w" sizes="(max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 984px) 61vw, (max-width: 1362px) 45vw, 600px" />

Fedora 32 was released at the end of April (see here). Here comes the standard warning.

Oracle Linux 8 (OL8) : Vagrant and Docker builds for 19c Database

https://oracle-base.com/blog/wp-content/uploads/2020/05/penguin-161356_6... 300w" sizes="(max-width: 230px) 85vw, 230px" />

A couple of days ago I mentioned the certification of Oracle database 19c on Oracle Linux 8 (OL8) with UEK6.

I’ve had a bunch of OL8 articles and builds for a while, but up until now they’ve included warnings to say they weren’t certified. Over the last couple of evenings I’ve made some changes, so I thought I would summarise then here.

Oracle 19c Automatic Indexing: Dropping Automatic Indexes (Fall Dog Bombs The Moon)

  Julian Dontcheff recently wrote a nice article on the new Automatic Index Optimization feature available in the upcoming Oracle Database 20c release (I’ll of course blog about this new 20c feature in the near future). Within the article, Julian mentioned a clever method of how to effectively drop Automatic Indexes that I thought would […]

Oracle Linux 8 (OL8) : Updates – UEK6, Podman, Database 19c Certification

Last week I had a quick email exchange with Simon Coter from Oracle about a few things related to Oracle Linux 8. I’ve been a little out of the loop over the last few weeks because of some important world event or another, so I had a bit of catching up to do.

UEK6 Went GA

UEK6 had been in preview for a while. In March it went GA, and I managed to miss that until recently. Even if you don’t care directly about the Linux kernel, this was a big thing because it was the first UEK release on Oracle Linux 8, and most of us outside Oracle were thinking this would mark the start of certification of Oracle products on OL8 (see below).

Silent installation: Oracle Restart 19c, ASM Filter Driver, UEK 5 edition

As promised in an earlier post here are my notes about installing Oracle Restart with ASM Filter Driver (ASMFD) 19c on Oracle Linux 7 using UEK 5.

Since the approach you are about to read isn’t explicitly covered in the documentation I suggest you ask Oracle Support whether it is supported before using this outside a playground/lab environment.

I also forgot about this post waiting to be published in my drafts folder, it should have gone out early April. Some components I used to put the post together aren’t the latest and greatest, please adjust accordingly.

Oracle 19c Automatic Indexing: Mixing Manual and Automatic Indexes Part II (Stay)

  In my previous post, I discussed how Automatic Indexing did not recognise there was already an existing logically equivalent manually created index and so created effectively a redundant Automatic Index. I also discussed previously how Automatic Indexing was clever enough to logically add new columns to existing Automatic Indexes if it determined such a […]

Oracle 19c: Automatic Indexing. Part 2. Testing Automatic Indexing with Swingbench

This is the second of a two-part post that looks at the Automatic Indexing feature introduced in Oracle 19c.
I have used Dominic Giles' Swingbench utility to create a realistic and repeatable OLTP load test using the Sales Order Entry (SOE) benchmark.  This post explains how I set up and ran the test, and what results I obtained.

In-memory opportunities abound

There has always been a bit of a Catch-22 with some of the really cool options in the Oracle Database. You want to explore the value of them, but you don’t want to draw the ire of any licensing implications of doing so. Of course, you can use XE or a trial version of the software, but nothing really helps prove (or disprove) the value of some functionality as much as running it on real Production volumes with real Production data.

So I was very very excited to see this in the 20c documentation:

image

Oracle 19c: Automatic Indexing. Part 1. Introduction

This is the first of a two-part post that looks at the Automatic Indexing feature introduced in Oracle 19c, available on engineered systems only. Initially, I simply wanted to see what it does and to understand how it worked.
Next, I wanted to see how good it is. I created a test based on Dominic Giles' Swingbench Sales Order Entry benchmark. Having dropped the secondary indexes (ones not involved in key constraints), I wanted to see which Automatic Indexing would recreate and whether that would reinstate the original performance.

References and Acknowledgements 

This blog is not intended to provide a comprehensive description of Automatic Indexing.  I explain some things as I go along, but I have referenced the sources that I found helpful.