Important

New database features are no longer connected to engine versions; features are now enabled independently during scheduled update windows, and “major” and “minor” releases no longer exist in Helios. Please visit the release notes to view the latest features available in your database clusters.

RANK

Syntax

RANK () OVER (
    [PARTITION BY (col | expr), ...]
    [ORDER BY (col | expr), ...]
)

Return Type

An integer

Example

The following example demonstrates how the partition clause groups results and then rank is applied to those groups. Order by orders the results.

SQL

CREATE TABLE rank_t (a int, b int);

INSERT INTO rank_t VALUES(1,1), (1,2), (3,2), (3,3), (3,-4);

SQL

SELECT a,b, RANK() OVER (PARTITION BY a ORDER BY b) FROM rank_t;

+------+------+-----------------------------------------+
| a    | b    | RANK() OVER (PARTITION BY a ORDER BY b) |
+------+------+-----------------------------------------+
|    1 |    1 |                                       1 |
|    1 |    2 |                                       2 |
|    3 |   -4 |                                       1 |
|    3 |    2 |                                       2 |
|    3 |    3 |                                       3 |
+------+------+-----------------------------------------+