Oracle

OCM 12c preparation: Transportable Tablespaces

By Franck Pachot . I use transportable tablespaces a lot since 8i, here are just a few examples. Same disclaimer here as in the first post of the series: don’t expect to get those posts close to what(…)

SQL Plan Directive: disabling usage and column groups

By Franck Pachot . Yesterday I came upon a comment on oracle-l while I was reading my slides for the UKOUG TECH15 SuperSunday. I've one slide and one demo about disabling SPD usage but that's not(…)

OCM 12c preparation: Manage PDB

By Franck Pachot . Let’s see the different ways to create a PDB, with different tools. Same disclaimer here as in the first post of the series: don’t expect to get those posts close to what you(…)

OCM 12c preparation: Create CDB in command line

By Franck Pachot . This post starts a series about things I wrote while preparing the OCM 12c upgrade exam. Everything in those posts are written before taking the exam - so don't expect any clue about the exam here.

Trying AppDynamix – monitoring application from user to database

By Franck Pachot . I like to come upon new monitoring software that help to go quickly from user response time to root cause. And I love applications that can be installed easily and at which I can give a(…)

Real life audience vs. Twitter audience

By Franck Pachot . I was looking at twitter analytics showing my top tweets in November and that puzzled me because tweets with the most 'impressions' and 'engagement' are related to events that had low audience in real. Any comment(…)

In-Memory synchronous population with hidden parameters

By Franck Pachot . By default, In-Memory Column Store population is done in background, asynchronously. There are two hidden parameters that can change this behavior, let's see how it works.

Cloud Control 12c on your laptop

By Franck Pachot . Today every DBA should have a lab on his laptop. This is where I reproduce most of cases before opening a SR, or to investigate something, to demo, to learn new features, or to prepare an(…)

Interested in a deep dive of logical replication?

By Franck Pachot . It's next week at #DOAG2015 Interested in a deep dive of logical replication? Let's try it. The best way to learn is to try it and this is the idea of #RepAttack where you can quickly(…)

set “_rowsets_enabled”=false

By Franck Pachot . This 12c 'wrong results' issue is thoroughly described by Mike Dietrich (https://blogs.oracle.com/UPGRADE/entry/switch_off_rowsets_enabled_in) and I've nothing to add. This blog post is there to be used as a reference for the comment in(…)