Database management

Near Zero Downtime Migration and failback with GoldenGate

Oracle GoldenGate allows to migrate Oracle database with Near Zero Downtime and with failback capability. Near Zero Downtime migration means very minimal application switchover downtime. The failback consists to rollback the migration from 19c to 12c. The goal of this(…)

Oracle Data Guard : Where to Host The Master Observer

By Mouhamadou Diaw An observer is an OCI client that connects to the primary and target standby databases using the same SYS credentials you used when you connected to the Oracle Data Guard configuration with DGMGRL. The observer is(…)

Oracle 21c : Dealing with FastStartFailoverActionOnPreCalloutFailure

By Mouhamadou Diaw In a previous blog I talked about the FSFO callout scripts which is a new feature with Oracle 21c with the broker. This feature will allow to execute some tasks before and after a(…)

Striim, real-time data integration

In my first blog-post about Striim, I showed you how to create an Initial Load from an on-premise database to an Azure SQL DB. In this second blog post I will create an application which will stream Data(…)

Active Duplicate from standby database

By Mouhamadou Diaw Generally we do active duplicate from primary database, but I think it should be fine to see what happen if we do active duplicate a database from a standby database. So, I do some tests and I(…)

Striim, first step

In this blog-post I will discuss about my first test with Striim. Striim is a data integration platform which can ingest real-time data from a variety of sources (SQL Server, Oracle, Kafka, Hadoop…) and quickly deliver it to Cloud(…)

How to solve Stored Procedure parameter sniffing problems

Since Tuesday, I have the chance to follow the SQLBits 2022 conference. Sadly, I have to do it remotely this year but I promise next time I will come in-person 😉 SQLBits is one of the largest(…)

Oracle 21c Broker : Fast-Start Failover Callout Scripts in Action

By Mouhamadou Diaw With Oracle 21c (In fact Oracle 20c), we have a nice new feature with the broker which is the Fast-start Failover Callout Configuration scripts. I talked about this feature in some presentations I did about the(…)

Patch 19.14 is out for ODA: new features and how to apply

Introduction Patch 19.14 is now available on Oracle Database Appliance. It’s time to test it. What’s new? This version brings January’s PSU to database and grid homes with their bug fixes, as usual. It also brings latest 21.5 but only(…)

ODA 19.13: odacli update-dbhome raises DCS-10001 and PRGH-1153

Introduction While patching ODAs from 19.10 to 19.13, the update-dbhome could fail if some databases inside this dbhome are stopped or only mounted. Job would then stop with a DCS-10001:Internal error encountered: PRGH-1153 : RHPHelper call to get runing nodes(…)