Oracle

Automate OVM deployment for a production ready Oracle RAC 12.2 architecture – (part 01)

After having worked with OVM on various architectures I can say that it is a good technology to easily build virtualized environments for production applications. Because it is based on XEN and has simple ways to deal with existing storage(…)

Multitenant internals: INT$ and INT$INT$ views

By Franck Pachot . This month, I'll talk - with lot of demos - about multitenant internals at DOAG conference. The multitenant dictionary architecture starts with a simple idea: system metadata and data are(…)

Multitenant dictionary: what is consolidated and what is not

By Franck Pachot . The documentation says that for Reduction of duplication and Ease of database upgrade the Oracle-supplied objects such as data dictionary table definitions and PL/SQL packages are represented only in the root. Unfortunately,(…)

Quick history on database growth

By Franck Pachot . AWR collects segment statistics, and this can be used to quickly understand an abnormal database growth. Here is a script I use to get, from the AWR history, the segments that have grown by more than(…)

Dbvisit replicate – SQL Developer chart

By Franck Pachot . Here is a quick SQL Developer report which display a chart about the Dbvisit replicate lag over the last hours(…)

Max PDBs in Standard Edition

By Franck Pachot . Here is a small warning. In Standard Edition, you may expect that the features that are not available for your edition are blocked, but in 12.2 you can create more than one PDB in Standard Edition,(…)

Database is more than persistence. It is shared. My thoughts about Microservice Database.

By Franck Pachot . The development teams often see the database as a 'persistence layer' only. And sometimes it is mentioned that the database is always the cause of the problems, especially when implementing continuous integration and trying to be(…)

Archivelog deletion policy on Data Guard configuration

By Franck Pachot . The deletion policy on a dataguard configuration should be: CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON ALL STANDBY; for the site where you don't backup. It can be the standby or the primary. and: CONFIGURE ARCHIVELOG(…)

Managing Oracle Big Data Cloud – CE with REST API

In this blog post, we will see how to manage Oracle Public Cloud Big Data service Compute Edition with REST API. Scheduling the start/stop/restart of a metered PaaS in the Oracle Cloud can be interesting for managing efficiently the consumption(…)

Oracle Database Multilingual Engine (MLE)

By Franck Pachot . My ODC appreciation blog post was about Javascript in the database running in the beta of the Oracle Database Multilingual Engine (MLE). Here I'll detail my first test which is a comparison,(…)