Oracle Database as our consultants live it every day: installation and patching, upgrades, RMAN backup and recovery, Data Guard, RAC, performance tuning, multitenant, licensing, and engineered systems such as ODA and Exadata.
I was recently setting up GoldenGate for a client when I was struck by a ORA-44001 error. I definitely wasn’t the first one to come across this while playing with grants on GoldenGate users, but nowhere could I find the exact reason for the issue. Not a single question or comment on that matter offered a solution. The problem occurs…
You might have an existing unsecure GoldenGate installation that you would like to secure, whether it’s for security reasons or because you would like to dissociate the installation and its securing process. After searching everywhere in the Oracle documentation for how to proceed, I decided to try, investigate and eventually even asked Oracle directly. Here is the answer. For a…
26ai update: This article was originally written for 23ai. But not much changes when setting up GoldenGate 26ai. Just adapt the responseFileVersion when doing the silent installation, and that’s it ! As instructed in this other blog, use oracle.install.responseFileVersion=/oracle/install/rspfmt_ogginstall_response_schema_v26_1_0 Automating Oracle installations can sometimes be daunting, given the long list of parameters available. We’ll compare both graphic and silent installations…
Introduction Oracle Database True Cache is an in-memory, read-only cache designed to reduce latency and offload read activity from the primary database. It’s comparable to an Active Data Guard standby instance, but it runs mostly in memory. This feature debuted in Oracle Database 23ai, which has since been rebranded as Oracle AI Database 26ai. There are several free ways to…
How to test your Oracle RMAN backups
Interactive Reports allow to send their content per e-mail on a regular basis thanks to the subscription feature. But this can also raise some security concerns. Let’s see how to bring some kind of control into the game… Requirements We developed some reporting solution for an Insurance company based on #orclAPEX. Some of the reports need to be sent on…
Since Oracle 21c, the non-CDB architecture has been deprecated. This means that all Oracle databases must now adopt the multitenant architecture (CDB + PDB). Thankfully, Oracle provides a powerful utility to ease this transition: AutoUpgrade. In this post, I’ll walk you through converting a non-CDB database into a PDB within a target CDB using AutoUpgrade. 🔎 Table of Contents 🔧…
If you’ve ever had to deal with MongoDB after years (or even decades) of working with SQL, you’ve probably realized that querying JSON documents can sometimes be painful, to say the least. In response to this, Oracle (and others) use a not-so-native adaptation of SQL to query JSON documents. And if you’ve ever had to deal with these SQL-based JSON…
The Concept Starting with Oracle Enterprise Manager (OEM) 13.5 RU24 (October 2024), Oracle introduced the Holistic Patch for OEM — a unified patching model that consolidates several separate updates into a single coordinated package. Previously, administrators had to patch: * The OMS and Agents with the quarterly Release Update (RU). * OEM Application via the System Patch Bundle (SPB). *…
As you might know, RO (Read Only) dbhome was introduced in Oracle 18c and became default configuration in Oracle 21c. Oracle came back with RW (Read Write) dbhome as default configuration in 23ai. It might be interesting to know how we can check if the oracle dbhome is RO (Read Only) or RW (Read Write). I had to recently look…
In some of my previous blogs, I showed how we were migrating on-premise databases to the ExaCC using Oracle ZDM at one of our customer. I also explained in some article how it was important in some case to relocate the PDB in a final CDB. Relocating a PDB on ExaCC is usually done using dbaascli pdb relocate command. The…
