-
Oracle Performance Tuning in 2025 — Starting With AWR Before Touching Anything Else?
Every Oracle performance engagement I’ve been part of has followed the same pattern when done correctly: start with AWR, form a hypothesis, validate with deeper tools, then act. The engagements that go badly almost always involve someone who acted before they understood — adding an index, changing a parameter, rewriting a query — based on… Continue reading
-
Oracle Scheduler in 2026— Need to Replacing Cron Jobs?
If you’re still running Oracle-related batch jobs as OS cron jobs or Windows scheduled tasks, you’re missing one of Oracle’s most underused built-in capabilities. Oracle Scheduler (DBMS_SCHEDULER) has been available since Oracle 10g and in 2025 it’s significantly more capable than most DBAs realize. It provides job scheduling, dependency chains, windowed execution, resource integration, logging,… Continue reading
-
OCI Exadata Database Service vs Base Database Service — Making the Right Choice? But how?
When customers start their Oracle Cloud journey, one of the first decisions they face is which compute platform to run their databases on. OCI offers several options, but the choice most production Oracle shops wrestle with is between Base Database Service (DB System) and Exadata Database Service (ExaDB-D, formerly Exadata Cloud Service). The cost difference… Continue reading
-
Oracle 23ai SQL Domains — Writing Less Code While Enforcing More Rules
One of the quieter but genuinely useful features in Oracle 23ai is SQL Domains. It doesn’t have the headline appeal of AI Vector Search, but for development teams building new applications on Oracle, it addresses a real and persistent problem: the same validation logic duplicated across dozens of table columns, the same formatting rules re-implemented… Continue reading
-
Oracle Database Backup to OCI Object Storage — The Complete Guide for 2026
Object Storage is the right destination for Oracle Database backups in OCI environments. It’s dramatically cheaper than Block Volume for backup retention, it’s geographically redundant by default, and it integrates with RMAN through Oracle’s database cloud backup module. But “integrates with RMAN” covers a lot of ground — the configuration details matter, and the defaults… Continue reading
-
Oracle APEX 24.x on OCI — Building Internal Tools Without Buying More Software
One of the most underappreciated cost-saving opportunities in Oracle shops is APEX. Every Oracle Database license includes APEX at no additional cost. On OCI, Oracle offers APEX Application Development as a managed service where you don’t even manage the database — you just build. I’ve watched teams pay for Retool, internal dashboard tools, and custom-built… Continue reading
-
ORA-12545 and ORA-12541 — Listener Troubleshooting That Goes Beyond the Basics! Let’s us check!
Every Oracle DBA knows how to check if a listener is running. lsnrctl status. If it’s down, start it. Problem solved, right? In a simple environment, yes. But in 2025, Oracle environments are rarely simple — they involve OCI networking layers, VCNs, Security Groups, firewalls, multiple listeners, RAC scan listeners, and PDB-specific services. The listener… Continue reading
-
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
-
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
-
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
AWARDED TOP 60 ORACLE BLOGS SINCE 2018
Recent Posts
- Oracle Performance Tuning in 2025 — Starting With AWR Before Touching Anything Else?
- Oracle Scheduler in 2026— Need to Replacing Cron Jobs?
- OCI Exadata Database Service vs Base Database Service — Making the Right Choice? But how?
- Oracle 23ai SQL Domains — Writing Less Code While Enforcing More Rules
- Oracle Database Backup to OCI Object Storage — The Complete Guide for 2026
CATEGORIES
- Cloud Computing Tutorials
- My Presentations
- Oracle Cloud Journey
- Oracle Database&EBS General
- Oracle E-Business Suite Release 11
- Oracle E-Business Suite Release 12
- Scripts for Oracle E-Business Suite
- Some other Oracle Products Installation
- Step by Step Oracle E-Business Suite Installation
- Video Tutorials
HELIOS BLOG 