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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 in that they:

  • Assign the same rank to tied rows
  • Do not skip ranks 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 between ROW_NUMBER, RANK, and DENSE_RANK

Dialect support

This example using jOOQ:

denseRank().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, SQLDataWarehouse, SQLServer, SQLite, Snowflake, Sybase, Teradata, Trino, Vertica, YugabyteDB

dense_rank() OVER (ORDER BY BOOK.ID)

ASE, Access, Aurora MySQL, Derby, HSQLDB

/* UNSUPPORTED */

(These are currently generated with jOOQ 3.20, see #10141), or translate your own on our website

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