I built a massive bank of 200+ advanced Oracle Exadata questions. To help the community, I’ve pulled out 30 of the these questions and put them into a free assessment guide. Test your knowledge on: 🔹 Smart Scans & Storage Indexes 🔹 Exadata Architecture 🔹 + many other Exadata topics Grab the free 30-question PDF … Continue reading Oracle Exadata Master Practice Guide
الدليل الشامل لحماية قواعد بيانات أوراكل في عصر الحروب السيبرانية
نحن نعيش اليوم واقعاً رقمياً لم يسبق له مثيل. لقد ولى الزمن الذي كانت فيه حماية قواعد بيانات أوراكل تقتصر على إعدادات جدار الحماية ، وتطبيق التحديثات الربع سنوية بشكل روتيني، والامتثال الشكلي للمعايير. في ظل التحولات الجيوسياسية المتسارعة التي تشهدها منطقة الشرق الأوسط والعالم، لم تعد الهجمات السيبرانية مجرد احتمالات تقنية أو محاولات فردية … Continue reading الدليل الشامل لحماية قواعد بيانات أوراكل في عصر الحروب السيبرانية
How to Fix ‘Application Express files have not been loaded’ in Oracle APEX (EPG)
If you are setting up Oracle APEX and find yourself staring at a screen complaining that your "Application Express files have not been loaded," you are not alone. This is a classic configuration hurdle, especially when using the Embedded PL/SQL Gateway (EPG). In this post, we'll walk through a specific scenario (Oracle 19c, APEX 18.2, … Continue reading How to Fix ‘Application Express files have not been loaded’ in Oracle APEX (EPG)
How to Manage (Kill, Cancel, and Resume) Datapump Jobs
We’ve all been there. You fire off a massive expdp or impdp job, grab a coffee, and then realize you forgot a specific table, the load is killing the CPU production, or you simply clicked "Enter" before you were ready. Panic sets in. Do you kill the OS process? Should you shut down the database? … Continue reading How to Manage (Kill, Cancel, and Resume) Datapump Jobs
The Oracle DBA’s Guide to SQL Server Integration: Implementing DG4ODBC on Oracle Linux 9
In modern data warehousing, the "pure" Oracle environment is a myth. We often manage dozens of Oracle databases but still encounter that one necessary SQL Server instance holding critical data. When you need to pull data from SQL Server into Oracle, you have two primary options: the paid "Oracle Database Gateway for SQL Server" (DG4MSQL) … Continue reading The Oracle DBA’s Guide to SQL Server Integration: Implementing DG4ODBC on Oracle Linux 9
Introduction to the Oracle Exadata Database Machine (Arabic version).
Introduction to the Oracle Exadata Database Machine (Arabic version). https://youtu.be/7mA_uuLAyQ8
Oracle RAC 19c: Key Network Requirements Explained
This document provides the network requirements for Oracle RAC 19c installation on a two-nodecluster running Red Hat Enterprise Linux (RHEL) 9 OR Oracle Linux 9Prepared for Client Review and ImplementationsNote that all IPs and Hostnames in this document are just examples.Replace it with your environment’s specific IPs. Network Overview Oracle RAC 19c cluster environment requires at … Continue reading Oracle RAC 19c: Key Network Requirements Explained
Solving the Country Dimension Chaos in a Data Warehouse: Smart Design Tips You Can Use
If you’ve ever worked on a data warehouse with multiple subject areas, you’ve likely run into a seemingly small issue that turns into a huge problem: inconsistent dimension values — especially for something as basic as countries, Gender and others. Recently, I faced this exact challenge and wanted to share how I tackled it, along … Continue reading Solving the Country Dimension Chaos in a Data Warehouse: Smart Design Tips You Can Use
Patching Oracle Linux against CVE-2023-48795 Vulnerability on Air-Gapped Servers
We’ve all been there. That email from the security team lands in your inbox, or a routine scan flags a new, critical vulnerability. This time, it’s CVE-2023-48795, also known as the "SSH Terrapin Prefix Truncation Weakness." It sounds intimidating, and the thought of a man-in-the-middle attack. For many, the fix is straightforward. But what if … Continue reading Patching Oracle Linux against CVE-2023-48795 Vulnerability on Air-Gapped Servers
Real-World Oracle Migration Magic: 10g to 19c, Step by Step Guide
Are you facing the daunting task of migrating an Oracle database across platforms and versions? Struggling to find a reliable, step-by-step resource that actually works in the real world? Look no further. This isn’t just another generic tutorial—it’s a battle-tested, hands-on guide born from a real-life customer project, meticulously crafted by an expert who’s been … Continue reading Real-World Oracle Migration Magic: 10g to 19c, Step by Step Guide