Third Highest Salary in SQL | Dataford Interview Questions

Your question is Third Highest Salary in SQL. Start with the requirements and the two tables on the right.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

NCR Voyix wants to review compensation levels across teams supporting its retail products. Write a PostgreSQL query to identify employees earning the third-highest distinct salary among active employees in departments belonging to NCR Voyix Retail Solutions.

Requirements

Join employees to departments using department_id.
Consider only active employees in the NCR Voyix Retail Solutions product area with non-null salaries.
Rank distinct salary values from highest to lowest and return every employee earning the third-highest salary.
Return the employee name, salary, and salary rank, ordered by employee name.

Use a window function such as DENSE_RANK, so employees with equal salaries share the same rank and do not create gaps in the distinct salary ranking.

Schema

employees

Column	Type	Description
employee_idPK	INT	Unique employee identifier
employee_name	VARCHAR(100)	Employee full name
department_id	INT	References departments.department_id
salary	NUMERIC(12,2)	Annual employee salary
employment_status	VARCHAR(20)	Current employment status

departments

Column	Type	Description
department_idPK	INT	Unique department identifier
department_name	VARCHAR(100)	Department name
product_area	VARCHAR(100)	NCR Voyix product or business area