| The jOOQ User Manual : SQL building : Column expressions : Aggregate functions : RANK | previous : next |
New versions: Dev (3.14) | Latest (3.13) | 3.12 | 3.11 | 3.10 | 3.9 | 3.8 | Old versions: 3.7 | 3.6 | 3.5
RANK
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
The RANK() hypothetical set function calculates the rank with gaps of the hypothetical value, i.e. ranks will be 1, 1, 1, 4, 5, 5, 7 (DENSE_RANK produces values without gaps, e.g. 1, 1, 1, 2, 3, 3, 4)
SELECT rank(0) WITHIN GROUP (ORDER BY AUTHOR_ID), rank(1) WITHIN GROUP (ORDER BY AUTHOR_ID), rank(2) WITHIN GROUP (ORDER BY AUTHOR_ID) FROM BOOK
create.select(
rank(val(0)).withinGroupOrderBy(BOOK.AUTHOR_ID),
rank(val(2)).withinGroupOrderBy(BOOK.AUTHOR_ID),
rank(val(4)).withinGroupOrderBy(BOOK.AUTHOR_ID))
.from(BOOK)
Producing:
+---------+---------+---------+ | rank(0) | rank(1) | rank(2) | +---------+---------+---------+ | 1 | 1 | 3 | +---------+---------+---------+
Dialect support
This example using jOOQ:
rank(val(0)).withinGroupOrderBy(BOOK.ID)
Translates to the following dialect specific expressions:
-- ORACLE, POSTGRES rank(0) WITHIN GROUP (ORDER BY BOOK.ID) -- ACCESS, ASE, AURORA_MYSQL, AURORA_POSTGRES, COCKROACHDB, DB2, DERBY, FIREBIRD, H2, HANA, HSQLDB, INFORMIX, INGRES, MARIADB, -- MEMSQL, MYSQL, REDSHIFT, SQLDATAWAREHOUSE, SQLITE, SQLSERVER, SYBASE, TERADATA, VERTICA /* UNSUPPORTED */
(These are currently generated with jOOQ 3.14, see #10141)
