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DENSE_RANK
Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition
DENSE_RANK assigns a series of "dense" rankings (where dense means, no gaps), which are different from RANK.
- The same rank is assigned to tied rows
- Ranks are not skipped after tied rows
SELECT LANGUAGE_ID, dense_rank() OVER (ORDER BY LANGUAGE_ID) FROM BOOK;
create.select(
BOOK.LANGUAGE_ID,
denseRank().over(orderBy(BOOK.LANGUAGE_ID)))
.from(BOOK)
.fetch();
Producing:
+-------------+------------+ | language_id | dense_rank | +-------------+------------+ | 1 | 1 | | 1 | 1 | <-- Tied rows are both ranked first | 2 | 2 | <-- The next rank is 2 as no ranks are skipped | 4 | 3 | +-------------+------------+
See this article for a comparison betweenROW_NUMBER,RANK, andDENSE_RANK
Dialect support
This example using jOOQ:
denseRank().over(orderBy(BOOK.ID))
Translates to the following dialect specific expressions:
Aurora Postgres, BigQuery, ClickHouse, CockroachDB, DB2, DuckDB, Exasol, Firebird, H2, Hana, Informix, MariaDB, MemSQL, MySQL, Oracle, Postgres, Redshift, SQLDataWarehouse, SQLServer, SQLite, Snowflake, Sybase, Teradata, Trino, Vertica, YugabyteDB
dense_rank() OVER (ORDER BY BOOK.ID)
ASE, Access, Aurora MySQL, Derby, HSQLDB
/* UNSUPPORTED */
Generated with jOOQ 3.20. Translate your own SQL on our website
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