cume_dist()The cume_dist() window function returns a relative measure (0-1) of where the current row is in the result according to the order by clause.
SELECT cume_dist() OVER (ORDER BY …)
FROM …Similar functions: row_number(), rank(), percent_rank().
The cume_dist() window function is defined in ISO/IEC 9075:2016-2 as part of optional feature T612, “Advanced OLAP operations”.
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