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Second Highest Salary
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Second Highest Salary

MediumSQL · PostgreSQL

Problem

Find the second highest salary.

Asked in the Virtual Onsite stage. SQL question testing window functions or aggregated ranking techniques.

Task

Write a PostgreSQL query that returns the second highest distinct salary from the employees table.

Requirements

  1. Return exactly one row with the second highest distinct salary.
  2. Ignore duplicate salary values when ranking salaries.
  3. If there is no second highest salary, return no rows.

Schema

employees
ColumnTypeDescription
employee_idPKINTPrimary key for each employee
employee_nameVARCHAR(100)Employee name
salaryNUMERIC(12,2)Employee salary
Tablesemployees
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