Practice · Economy · Easy

The worst inflation year

Return the single highest annual inflation rate on record, as a column named max_rate.

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What you are given

inflation(year, rate_pct). Use MAX(rate_pct).

SELECT MAX(rate_pct) AS max_rate
FROM inflation;

The reference solution is checked automatically when you run your query on the practice page — results are compared row by row.

MIN and MAX are aggregates too — they collapse a whole column to one value. (SQLite docs)