Exact Keyword Counts in Logs

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

Domain

SQL

Difficulty

hard

Seniority

junior

Problem

The SRE team is building a severity distribution chart and needs exact counts of ERROR and WARN log entries from the server logs. Show each log level and its total count.

Practice This Problem

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