Calculate summary metrics with COUNT, SUM, AVG, group rows by category with GROUP BY, and filter grouped results with HAVING.
⏱ 2 Mins • ⭐ 170 XP • Intermediate
⏱ 2 Mins • ⭐ 180 XP • Intermediate
⏱ 2 Mins • ⭐ 190 XP • Intermediate
⏱ 3 Mins • ⭐ 220 XP • Advanced