Oracle Database 19c Statistics Gathering
Introduction For every SQL statement, the Oracle Optimizer considers multiple execution plans and selects the plan with the lowest estimated […]
Oracle DBA
Oracle SQL Interview Practice
Oracle SQL Query-Based Interview Questions (0–5 Years)
Query-based questions are the most important part of Oracle SQL technical rounds.Interviewers use these questions to test: Below are commonly
Oracle SQL Interview Practice
Oracle SQL & PL/SQL Interview Questions (0–5 Years Experience)
With Real-Time Examples Asked in Top IT Companies & Banks If you are preparing for an Oracle SQL / PL-SQL
Oracle SQL
Database Normalization Explained with a Real-Time Banking Use Case
DisclaimerAll names, phone numbers, account numbers, branch names, and transaction details used in this article are purely fictional and created
Oracle DBA
Steps to auto-start an Oracle Database on boot in RHEL 7
Step 1: Verify Oracle Environment Login as oracle user and confirm: Example: 🔹 Step 2: Update /etc/oratab Edit the file
Oracle SQL
BANKING TRAINING SCHEMA – DESIGN OVERVIEW
We will use one common schema: user will: 📐 ENTITY DESIGN (CORE BANKING) Plus: 🔹 STEP 1: Create BANKING Schema
Oracle SQL
Multi-user practice setup / lab for Oracle 19c NON-CDB with N trainees
Requirements 🏗️ HIGH-LEVEL DESIGN (BEST PRACTICE) 🔹 STEP 1: Core Database Hardening (DBA – Once) Login as SYS: 1️⃣ Enable
Oracle DBA
Steps to install JDK 17 and Oracle SQL Developer on a RHEL 7 machine using RPM files
Assume: 🔹 PART 1: Install JDK 17 (RPM) 1️⃣ Switch to root 2️⃣ Verify the RPM file (Optional check) 3️⃣
Oracle DBA
Steps to completely uninstall all existing Oracle databases and software from your RHEL 7 machine
IMPORTANT WARNING (READ FIRST) This process will: 👉 Proceed only if you are 100% sure no data is required(If needed,
Oracle DBA
Installation of Oracle Database 19c on RHEL 7
OS: RHEL 7.x (64-bit) User: oracle Install type: Single Instance – Enterprise/Standard Edition Filesystem based (not ASM) You have root