Analytical Functions in Oracle 19c – A Complete, Practical Guide
Introduction Analytical (also called analytic or window) functions are one of the most powerful features of the Oracle database. They […]
Oracle SQL
Oracle SQL
Oracle SQL
SQL MERGE Statement
Problem: Table: CUSTOMER_FIN Table: CUSTOMER_RAW Use of MERGE Statement and insert new records. Syntax MERGE INTO table_name– specify the target
Oracle SQL
Demo of SQL CASE Statement
Problem: Required: The SQL CASE statement allows you to perform IF-THEN-ELSE functionality within an SQL statement. It’s good for displaying
Oracle SQL
Subquery in Oracle
A subquery is a query nested inside another query, typically used to perform more complex searches by querying results from
Oracle SQL
Practice Character, Date & Numeric Functions (Banking & FinTech)
📖 Introduction In Banking and FinTech applications, Oracle SQL functions are used daily for: This blog provides a complete hands-on
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 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