This page is a quick reference checkpoint for RANK in BigQuery: behavior, syntax rules, edge cases, and a minimal example; plus the official vendor documentation.
RANK assigns a ranking number to each row, giving equal values the same rank and leaving gaps after ties.
Assigns the same rank to peer rows; ranks may not be consecutive. Return type is INT64.
If this behavior feels unintuitive, the tutorial below explains the underlying pattern step-by-step.
RANK() OVER (window_clause)
SELECT RANK() OVER (PARTITION BY region ORDER BY sales DESC) AS sales_rank FROM sales_table;
If you came here to confirm syntax, you’re done. If you came here to get better at window functions, choose your next step.
RANK is part of a bigger window-function pattern. If you want the “why”, start here: Ranking Functions
Reading docs is useful. Writing the query correctly under pressure is the skill.
For the authoritative spec, use the vendor docs. This page is the fast “sanity check”.
View BigQuery Documentation →Looking for more functions across all SQL dialects? Visit the full SQL Dialects & Window Functions Documentation.