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SQL: Rank Salaries
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SQL: Rank Salaries

MediumSQL · PostgreSQL

Problem

HD Supply's workforce reporting team needs a compensation view across active employees, departments, and work locations. Write a PostgreSQL query to identify every active employee tied at the third-highest distinct current salary as of January 1, 2025.

Requirements

  1. Select each employee's latest salary record effective on or before the reporting date.
  2. Join employees to departments and locations, excluding rows without valid matches.
  3. Exclude inactive employees.
  4. Rank distinct salary values from highest to lowest and return all employees at rank 3.
  5. Return employee name, department, city, salary, and salary rank, ordered by employee name.

Schema

employees
ColumnTypeDescription
employee_idPKINTUnique employee identifier
employee_nameVARCHAR(100)Employee's full name
department_idINTDepartment assignment
location_idINTWork location assignment
employment_statusVARCHAR(20)Current employment status
salary_history
ColumnTypeDescription
salary_history_idPKINTUnique salary history identifier
employee_idINTEmployee receiving the salary
salaryNUMERIC(12,2)Annual salary amount
effective_dateDATEDate the salary became effective
departments
ColumnTypeDescription
department_idPKINTUnique department identifier
department_nameVARCHAR(100)Department name
locations
ColumnTypeDescription
location_idPKINTUnique work location identifier
cityVARCHAR(80)Location city
stateVARCHAR(2)Two-letter state code
Tablesemployeessalary_historydepartmentslocations
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