percent_rank()The percent_rank() window function returns a relative measure (0-1) of where the current row is in the result according to the order by clause.
SELECT PERCENT_RANK() OVER (ORDER BY …)
FROM …Similar functions: row_number(), rank(), dense_rank(), cume_dist().
The percent_rank() window function is defined in ISO/IEC 9075:2016-2 as part of optional feature T612, “Advanced OLAP operations”.
You can’t catch up on 20 years of SQL evolution in one day. Subscribe the newsletter via E-Mail, Twitter or RSS to gradually catch up and to keep modern-sql.com on your radar.
Markus Winand provides insights into SQL and shows how different systems support it at modern-sql.com. Previously he made use-the-index-luke.com, which is still actively maintained. Markus can be hired as trainer, speaker and consultant via winand.at.
The essence of SQL tuning in 200 pages
Buy now!
(paperback and/or PDF)
Paperback also available at Amazon.com.
Markus offers SQL training and consulting for developers working at companies of all sizes.
Learn more »