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19c New Features

Oracle Database 19c Automatic Indexing: Default Index Column Order Part II (Future Legend)

In Part I, we explored some options that Oracle might adopt when ordering the columns within an Automatic Index by default, in the absence of other factors where there is only the one SQL statement to be concerned with. A point worth making is that if all columns of an index are specified within SQL […]

Oracle Database 19c Automatic Indexing: Default Index Column Order Part I (Anyway Anyhow Anywhere)

The next thing I was curious about regarding Automatic Indexing was in which order would Oracle by default order the columns within an index. This can be a crucial decision with respect to the effectiveness of the index (but then again, may not be so crucial as well). Certainly one would expect the index column […]

Oracle 19c Automatic Indexing: How Many Executions Does It Take? (One Shot)

One of the first questions I asked when playing with the new Oracle Database 19c Automatic Indexing feature was how many executions of an SQL does it take for a new index to be considered? To find out, I create the following table: I then ran the following query just once and checked to see […]

Oracle 19c Automatic Indexing: My First Auto Index (Absolute Beginners)

I am SOOOO struggling with this nightmare block editor but here goes. Please excuse any formatting issues below: I thought it was time to show the new Oracle 19c Automatic Indexing feature in action and what better way than to go through how I created my first ever Automatic Index. To start, I create a […]

Intro: Initial Thoughts On Oracle Autonomous Database Cloud Services (Automatic For The People)

I’m currently writing up a few blog pieces on indexing in the Oracle Autonomous Database environments, but I thought I’ll begin by introducing what exactly are Oracle Autonomous Database Cloud Services and some of my initial thoughts, as there’s still some confusion on all this. Introduced by Uncle Larry at Oracle OpenWorld 2017, Oracle Autonomous […]