Oracle

Oracle Internet Directory or Oracle Access manager 12.2.1.4 fails to install on Red Hat Linux8

Recently I had to install Oracle Internet Directory (OID) and Oracle Access Manager (OAM) both in 12.2.1.4 on a Red Hat 8 for new QA and PRODUCTION environments. The installation of the OID 12.2.1.4 failed on packages prerequisites check. It(…)

Parameterized Views with SYS_CONTEXT in Oracle. How can the optimizer peek values?

There was a dicsussion a couple of years ago about a mssing feature in Oracle that the Optimizer is not peeking values when SYS_CONTEXT is being used in a predicate. I.e. specifically when using SYS_CONTEXT in Views to simulate passing(…)

Amazon RDS Oracle in Multitenant

By Franck Pachot . AWS has just added the possibility to create your oracle Database as as CDB (Container Database), the “new” architecture of Oracle where an instance can manage multiple databases, adding a new level between the heavy(…)

PostgreSQL on Oracle free tier ARM

By Franck Pachot . This follows the previous post about the Oracle Cloud ARM compute shape just announced on May 25th. The processor is ARM v8.2 with LSE (atomic instructions) and PostgreSQL can benefit from it (see(…)

Does it still make sense to deploy a virtualized HA ODA in 2021?

Introduction Starting from version 19.11 of the Oracle Database Appliance software bundle, OLVM will definitely replace OVM server as virtualization engine. This change has quite a big impact as there will be no more virtualized specific deployment. Bare metal will(…)

El Carro: The Oracle Operator for Kubernetes

By Franck Pachot . Google Cloud, Open Source and Oracle Databases… what seems to be a paradox is possible, thanks to cloud providers who contribute to open infrastructure. The idea is to use Operators (custom resource controllers on Kubernetes)(…)

Patching ODA HA from 19.8 to 19.10

In this blog I am describing the steps to patch an ODA HA from the version 19.8 to version 19.10. The patching was done with a customer. Thanks to Pierre. The name of the servers were changed The ODA(…)

Is it possible to switch a service between 2 pluggable databases?

Introduction In an Oracle database, services have multiple purposes: identifying group of users prior authenticating them enabling/disabling access to a database for particular groups managing preferred nodes on a RAC configuration redirecting users to the primary after a switchover/failover when(…)

An example of ORA-01152: file … was not restored from a sufficiently old backup

By Franck Pachot . Oracle Error: ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below ORA-01152: file ... was not restored from a sufficiently old backup ORA-01110: data file ... This error is one of(…)

Rename your DB clone completely

Introduction Have you ever renamed your database? When you cloned a DB, you probably started it with a new name and cloning (duplicating) with RMAN provided a new DBID, right? So why should we need to rename a(…)