Available in versions: Dev (3.19) | Latest (3.18) | 3.17 | 3.16 | 3.15 | 3.14 | 3.13 | 3.12 | 3.11 | 3.10 | 3.9
PERCENT_RANK
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
PERCENT_RANK works like RANK, but assigns ranks between 0 and 1:
SELECT LANGUAGE_ID, percent_rank() OVER (ORDER BY LANGUAGE_ID) FROM BOOK;
create.select(
BOOK.LANGUAGE_ID,
percentRank().over(orderBy(BOOK.LANGUAGE_ID)))
.from(BOOK)
.fetch();
Producing:
+-------------+--------------+ | language_id | percent_rank | +-------------+--------------+ | 1 | 0 | | 1 | 0 | <-- Tied rows are both ranked first | 2 | 0.6666666667 | | 4 | 1 | +-------------+--------------+
Dialect support
This example using jOOQ:
percentRank().over(orderBy(BOOK.ID))
Translates to the following dialect specific expressions:
-- AURORA_POSTGRES, BIGQUERY, COCKROACHDB, DB2, DUCKDB, EXASOL, FIREBIRD, H2, HANA, INFORMIX, MARIADB, MEMSQL, MYSQL, -- ORACLE, POSTGRES, REDSHIFT, SNOWFLAKE, SQLDATAWAREHOUSE, SQLITE, SQLSERVER, SYBASE, TERADATA, TRINO, VERTICA, YUGABYTEDB percent_rank() OVER (ORDER BY BOOK.ID) -- ACCESS, ASE, AURORA_MYSQL, DERBY, HSQLDB /* UNSUPPORTED */
(These are currently generated with jOOQ 3.19, see #10141), or translate your own on our website
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