The jOOQ User Manual : SQL building : Column expressions : Aggregate functions : PERCENT_RANK | previous : next |
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PERCENT_RANK
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The PERCENT_RANK()
hypothetical set function calculates the percent rank of the hypothetical value, i.e. the relative rank from 0 to 1 (CUME_DIST produces values from 1/N to 1)
SELECT percent_rank(0) WITHIN GROUP (ORDER BY ID), percent_rank(2) WITHIN GROUP (ORDER BY ID), percent_rank(4) WITHIN GROUP (ORDER BY ID) FROM BOOK
create.select( percentRank(val(0)).withinGroupOrderBy(BOOK.ID), percentRank(val(2)).withinGroupOrderBy(BOOK.ID), percentRank(val(4)).withinGroupOrderBy(BOOK.ID)) .from(BOOK)
Producing:
+-----------------+-----------------+-----------------+ | percent_rank(0) | percent_rank(2) | percent_rank(4) | +-----------------+-----------------+-----------------+ | 0.0 | 0.25 | 0.75 | +-----------------+-----------------+-----------------+
Dialect support
This example using jOOQ:
percentRank(val(0)).withinGroupOrderBy(BOOK.ID)
Translates to the following dialect specific expressions:
-- ORACLE, POSTGRES percent_rank(0) WITHIN GROUP (ORDER BY BOOK.ID) -- ACCESS, ASE, AURORA_MYSQL, AURORA_POSTGRES, BIGQUERY, COCKROACHDB, DB2, DERBY, FIREBIRD, H2, HANA, HSQLDB, IGNITE, -- INFORMIX, MARIADB, MEMSQL, MYSQL, REDSHIFT, SNOWFLAKE, SQLDATAWAREHOUSE, SQLITE, SQLSERVER, SYBASE, TERADATA, VERTICA /* UNSUPPORTED */
(These are currently generated with jOOQ 3.15, see #10141)
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