SQL pattern

Ordering & Top-N

3 problemsin this pattern, climbing easy → medium → hard. Pick wherever you're calibrated. Read the P03 tutorial →

Easy

0 / 1 solved

Top 2 spenders by paid revenue
SQL · ~5 min
NEW

Medium

0 / 1 solved

Top 2 orders, ties broken by the earliest order
SQL · ~5 min
NEW

Hard

0 / 1 solved

Customers by latest order, never-ordered last
SQL · ~9 min
NEW