SQL queries

How to Add Two Numbers Using PL/SQL Program Query

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Introduction PL/SQL (Procedural Language/Structured Query Language) is an extension of SQL that allows programmers to write procedural code, such as loops, conditional statements, and exception handling. One of the most fundamental operations in any programming language is adding two numbers, and in this guide, we will explore how to achieve this using a PL/SQL program … Read more

Understanding SQL Joins: Inner Join, Left Outer Join, and Right Outer Join

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When working with relational databases, SQL Joins are essential for combining data from multiple tables. This blog focuses on three commonly used joins: INNER JOIN, LEFT OUTER JOIN, and RIGHT OUTER JOIN, using a clear scenario to demonstrate how they work and how many rows they return. Scenario: Two Tables We’ll use two simple tables, … Read more