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SQL • LESSON 81

JOIN with WHERE

How can we find engineers and their department information?

Intermediate3 Minutes940 XP
🤔 THE QUESTION

How can we find engineers and their department information?

💡 WHAT IS IT?

The WHERE clause filters joined datasets after the join relationship is evaluated.

🎯 WHAT IS IT USED FOR?

Departmental staff directories, joined regional filtering, scoped relational queries.

💻 EXAMPLE
SELECT e.name, d.department_name
FROM employees e
JOIN departments d
ON e.department_id = d.department_id
WHERE d.department_name = 'Engineering';

🎯 Mission Objectives

Practice typing production-grade SQL code for JOIN with WHERE.

  • JOIN + WHERE
  • Joined filtering
  • Scoped lookups
  • Clean SQL structure