Mastering SQL Subqueries for Data Analysis

Introduction

In this project, you will learn how to use subqueries to retrieve relevant information from the employee (emp) and department (dept) tables in the personnel database. You will practice writing complex SQL queries to access and analyze data from multiple tables.

👀 Preview

🎯 Tasks

In this project, you will learn:

• How to start the MySQL server and import the personnel database
• How to use a subquery to find the employee with the highest salary
• How to calculate the proportion of employees in a specific department compared to the entire company
• How to retrieve all employees working in a specific location using a subquery
• How to find employees whose salary exceeds the average salary in their department

🏆 Achievements

After completing this project, you will be able to:

• Understand the concept and use of subqueries in SQL
• Write complex SQL queries that combine data from multiple tables
• Analyze and extract meaningful insights from a database using subqueries
• Demonstrate your SQL skills in a practical, real-world scenario