DENSE_RANK()

Overview

Returns the number of the given row, starting at 1 and following the ORDER BY sequence of the window function.

See also: Functions in 10.6 ES, in 10.6 CS, in 10.5 ES, in 10.5 CS, in 10.4 ES, in 10.4 CS, in 10.3 ES, in 10.3 CS, in 10.2 ES, and in 10.2 CS

EXAMPLES

CREATE TABLE t1 (a INT, b INT);
INSERT INTO t1 VALUES
  (1,3), (1,5), (8,2), (5,7), (5,6),
  (10,1), (6,4), (3,9), (3,9), (7,2),
  (7,5), (2,6), (9,10), (9,5), (4,8);
SELECT a,b,
       ROW_NUMBER() OVER w AS 'row_number',
       RANK() OVER w AS 'rank',
       DENSE_RANK() OVER w AS 'dense_rank'
 FROM t1
 WINDOW w AS (ORDER BY a, b);
+------+------+------------+------+------------+
| a    | b    | row_number | rank | dense_rank |
+------+------+------------+------+------------+
|    1 |    3 |          1 |    1 |          1 |
|    1 |    5 |          2 |    2 |          2 |
|    2 |    6 |          3 |    3 |          3 |
|    3 |    9 |          4 |    4 |          4 |
|    3 |    9 |          5 |    4 |          4 |
|    4 |    8 |          6 |    6 |          5 |
|    5 |    6 |          7 |    7 |          6 |
|    5 |    7 |          8 |    8 |          7 |
|    6 |    4 |          9 |    9 |          8 |
|    7 |    2 |         10 |   10 |          9 |
|    7 |    5 |         11 |   11 |         10 |
|    8 |    2 |         12 |   12 |         11 |
|    9 |    5 |         13 |   13 |         12 |
|    9 |   10 |         14 |   14 |         13 |
|   10 |    1 |         15 |   15 |         14 |
+------+------+------------+------+------------+

CHANGE HISTORY

Release Series

History

10.6 Enterprise

  • Present starting in MariaDB Enterprise Server 10.6.4-1.

10.6 Community

  • Present starting in MariaDB Community Server 10.6.0.

10.5 Enterprise

  • Present starting in MariaDB Enterprise Server 10.5.3-1.

10.5 Community

  • Present starting in MariaDB Community Server 10.5.0.

10.4 Enterprise

  • Present starting in MariaDB Enterprise Server 10.4.6-1.

10.4 Community

  • Present starting in MariaDB Community Server 10.4.0.

10.3 Enterprise

  • Present starting in MariaDB Enterprise Server 10.3.16-1.

10.3 Community

  • Present starting in MariaDB Community Server 10.3.0.

10.2 Enterprise

  • Present starting in MariaDB Enterprise Server 10.2.25-1.

10.2 Community

  • Present starting in MariaDB Community Server 10.2.0.

EXTERNAL REFERENCES