Second Highest Salary

A easy SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

easy

Seniority

L3

Problem

HR is setting the salary band for a new role and needs the second-highest unique salary on record as a benchmark. If all employees share the same salary, return NULL.

Summary

Silver medal. Almost the top, but not quite.

Practice This Problem

Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.