Scenario SQL Question

Hierarchy Level and Team Size for Each Employee

Build mastery in Self Joins Hierarchical with this scenario-based SQL challenge and live execution support.

Problem Statement

Write a recursive CTE to assign a level to each employee in the organizational hierarchy. Also calculate the team size (direct reports only) for each employee. Return employee_id, employee_name, hierarchy_level, and team_size.

Relevant Tables

employees

SQL Concepts Used in This Scenario

Strengthen your understanding with these targeted learning topics:

Self JoinsJoins & Relationships
Recursive CTEs for Hierarchical DataSubqueries & CTEs
Common Table ExpressionsSubqueries & CTEs