For Complete Source: visit https://www.businessintelligence.bi/2025/03/05/sql-correlated-sub-query-explained-fetch-employees-with-above-average-salary-using-ctes/ In this video, we break down an advanced SQL query step by step! Learn how to use Common Table Expressions (CTEs) to fetch the latest salary and department of employees, filter out those earning above the department’s average salary, and optimize queries using ROW_NUMBER() and JOINs. Perfect for SQL learners […]

A Common Table Expression (CTE) is the result set of a query which exists temporarily and for use only within the context of a larger query. Learn how to write an SQL query to retrieve the latest pay rate and department for employees. This tutorial covers key SQL techniques such as JOIN, GROUP BY, and […]

Want to level up your SQL skills? In this tutorial, we break down Subqueries and Joins step by step, helping you understand when and how to use them efficiently. Whether you’re a beginner or an experienced SQL user, this video will enhance your database query skills. 🚀 What You’ll Learn: ✅ What are Subqueries & […]

Video on Relational Databases Master SQL Databases with MS Access: A Step-by-Step Tutorial -https://youtu.be/0Qg6-kxQbyQ Learn Sql Databases using MS Access – An end-to-end project covers Referential Integrity, SQL & more https://youtu.be/0Qg6-kxQbyQ Video on Table Join SQL for Data Analysis: Selecting & Joining Data from Multiple Tables! https://youtu.be/fXsQvTc62FU Description: Want to take your SQL skills to […]

In this video, we break down SQL’s GROUP BY, ORDER BY, and Aggregate Functions with simple explanations and real-world examples. Whether you’re a beginner or looking to sharpen your SQL skills, this tutorial covers everything you need to know! 📌 Topics Covered: ✅ What is GROUP BY in SQL? ✅ How ORDER BY Works with […]

Master SQL for Data Analysis! In this video, we’ll explore how to extract and analyze data from multiple tables using SQL JOINs. Learn how to efficiently combine data from Product, Subcategories and Categories. 🔹 What You’ll Learn: ✅ How to join multiple tables in SQL ✅ How to show categories and subcategories of product ✅ […]