Define exactly which physical rows are included.
Section: OVER clause fundamentals
Explicit ROWS frame
sql
sql
SELECT created_at,
amount,
SUM(amount) OVER (
ORDER BY created_at
ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
) AS running_total
FROM orders;Explanation
Use `ROWS` when you want frame boundaries to follow row positions rather than peer groups.
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Same sheet · prioritizing OVER clause fundamentals
Exclude the current row from a frame
Compare a row against all earlier rows only.
Count all rows without collapsing them
Return total row count on every row.
Assign row numbers inside each partition
Number rows in order within each customer.
Use RANGE for peer-aware frames
Group rows that share the same ordering value.