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Oracle 23ai True Cache — In-Memory Read Scaling Without Application Changes
True Cache is one of those Oracle 23ai features that doesn’t get enough attention compared to AI Vector Search. It’s less glamorous — there’s no “AI” in the name — but for organizations running high-traffic Oracle applications with read-heavy workloads, it addresses a very real architectural problem that previously required significant application changes or expensive… Continue reading
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ORA-00600 Internal Error — How to Actually Diagnose Oracle’s Most Feared Error Code!!Still scare?
If you’ve been a DBA long enough, you remember the first time you saw ORA-00600 in your alert log. The reaction is always the same: a moment of panic, followed by the realization that the error message tells you almost nothing useful on its own. ORA-00600 is Oracle’s generic internal error code — it means… Continue reading
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OCI Database Migration Service — Moving Your On-Prem Oracle Database to the Cloud Without Losing Sleep
The question I get most often from customers considering OCI is not “how do we run Oracle in the cloud” — they understand that part. The question is: “how do we get there from here?” Moving a production Oracle database to OCI without a well-planned migration approach is one of the fastest ways to have… Continue reading
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Oracle Database Licensing in the Cloud — The Traps Every DBA Should Know!!
This might be the most important blog post on this site from a business perspective. Oracle Database licensing is complex on-premises. In the cloud, it’s complex in different ways, with different traps. DBAs are not typically licensing experts, but they make decisions daily that have significant licensing implications — which features to enable, which cloud… Continue reading
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Oracle GoldenGate in 2025 — Real-Time Data Integration Done Right
GoldenGate has evolved significantly over the last few years. With GoldenGate Microservices Architecture (MA), the old classic architecture with its manager, extract, replicat processes managed via GGSCI commands is giving way to a REST API-driven, web-console-managed platform. And on OCI, GoldenGate is available as a fully managed service. This post covers what’s changed, what stays… Continue reading
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Oracle GoldenGate in 2025 — Real-Time Data Integration Done Right
GoldenGate has evolved significantly over the last few years. With GoldenGate Microservices Architecture (MA), the old classic architecture with its manager, extract, replicat processes managed via GGSCI commands is giving way to a REST API-driven, web-console-managed platform. And on OCI, GoldenGate is available as a fully managed service. This post covers what’s changed, what stays… Continue reading
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Oracle Autonomous Database — What Happens Under the Hood? Let’s dive into it!
Autonomous Database (ADB) is marketed with phrases like “self-driving,” “self-securing,” and “self-repairing.” These are not meaningless marketing terms, but they’re also not magic. Understanding what ADB actually does automatically — and how — makes you a better operator of the service and helps you set realistic expectations with your business stakeholders. Auto-Tuning: What It Does… Continue reading
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ORA-01555 Snapshot Too Old — The Root Cause Analysis Your Team Isn’t Doing- Let us discuss this error again!
RA-01555 is one of the most mishandled errors in Oracle production support. The fix is almost always “increase undo retention” — and teams apply it, the error goes away for a while, and eventually it comes back. This cycle repeats because the team is treating the symptom. The error comes back because the root cause… Continue reading
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Oracle Database 23ai JSON Relational Duality — One Object, Two Faces
One of the most architecturally interesting features in Oracle 23ai is JSON Relational Duality Views. The concept is elegant: define a view that exposes your relational data as JSON documents, allow applications to read and write through that JSON interface, and have Oracle handle the translation to and from the underlying relational tables automatically. Same… Continue reading
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RMAN Backup Strategy in 2025 — Are You Actually Recovering or Just Backing Up?
There’s a critical distinction between running backups and having a recovery strategy. Many production databases have RMAN jobs that run nightly, complete with exit code 0, and the DBA who set them up three years ago is confident that the database is protected. Until the day they actually need to restore. I’ve seen this scenario… Continue reading
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