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Efficiently query DBA_EXTENTS for FILE_ID / BLOCK_ID

By Franck Pachot . This was initially posted to CERN Database blog on Thursday, 27 September 2018 where it seems to be lost. Here is a copy thanks to web.archive.org Did you ever try to(…)

Amazon Aurora: calling a lambda from a trigger

By Franck Pachot . You may want your RDS database to interact with other AWS services. For example, send a notification on a business or administration situation, with a “push” method rather than a “pull” one from a Cloud(…)

Validate your SQL Server infrastructure with dbachecks

Introduction In this blog post, I’ll do an introduction to the PowerShell module dbachecks. dbachecks uses Pester and dbatools to validate your SQL Server infrastructure. With very minimal configuration you can check that(…)

Oracle write consistency bug and multi-thread de-queuing

By Franck Pachot . This was initially posted on CERN Database blog where it seems to be lost. Here is a copy thanks to web.archive.org Additional notes: – I’ve tested and got the(…)

Oracle 21c Security : Mandatory Profile

By Mouhamadou Diaw With Oracle 21c, it is now possible to enforce a password policy (length, number of digits…) for all pluggable databases or for specific pluggable databases via profiles. This is done by creating a mandatory profile in the(…)

pg_auto_failover: Failover and switchover scenarios

In the last post we had a look at the installation and setup of pg_auto_failover. We currently have one primary cluster and two replicas synchronizing from this primary cluster. But we potentially also have an issue(…)

Recovery in the ☁ with Google Cloud SQL (PostgreSQL)

By Franck Pachot . In a previous post I started this series of “Recovery in the ☁” with the Oracle Autonomous database. My goal is to explain the recovery procedures, especially the Point-In-Time recovery procedures(…)

Easy failover and switchover with pg_auto_failover

One the really cool things with PostgreSQL is, that you have plenty of choices when it comes to tooling. For high availability we usually go with Patroni, but there is also pg_auto_failover(…)

Oracle 21c Security : Gradual Database Password Rollover

By Mouhamadou Diaw Starting with Oracle 21c, a password of an application can be changed without having to schedule a downtime. This can be done by using the new profile parameter PASSWORD_ROLLOVER_TIME This will set a rollover period of(…)

Oracle 21c Security : ORA_STIG_PROFILE and ORA_CIS_PROFILE

By Mouhamadou Diaw In my previous blog I was testing the creation of a new Oracle 21c database. In this blog I am talking about two changes about the security. In each new(…)