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#0348
Orders Above Average Amount
MediumSQL24 min20 XP
Problem
Return order_id and amount for orders above the overall average amount.
Why This Matters
SQL interviews usually test whether you can turn a business question into the right rows, grouping level, join type, and edge-case behavior.
Schema
orders(order_id INTEGER, amount INTEGER)
Examples
Example 1
Inputaverage amount is 100
Outputorder 3 only
Only 150 is greater than the average 100.
Constraints
- Return only the requested columns.
- Use deterministic ORDER BY when multiple rows are returned.
- Assume SQLite-compatible SQL unless the prompt states otherwise.
CodeSQL
Visible browser tests run here when available.
Testcases1 visible / 3 hidden categories
Core SQL case
Inputaverage amount is 100
Expected[[3,150]]
Only 150 is greater than the average 100.
Hidden Test Categories
Empty or missing matchesDuplicate rows or tiesNULL values where the pattern commonly breaks