Important

Helios features are now enabled during weekly update windows and are no longer directly tied to SingleStore engine releases. Refer to the release notes to view the latest features available in your Helios cluster.

PERCENT_RANK

Syntax

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

Return Type

A DOUBLE data type.

Examples

SQL

CREATE TABLE pr_example (a int, b int);

INSERT INTO pr_example VALUES(1,2),(2,2),(3,3),(4,3);

SQL

SELECT a,b, PERCENT_RANK() OVER(ORDER BY a,b) FROM pr_example;

+------+------+-----------------------------------+
| a    | b    | percent_rank() over(order by a,b) |
+------+------+-----------------------------------+
|    1 |    2 |                                 0 |
|    2 |    2 |                0.3333333333333333 |
|    3 |    3 |                0.6666666666666666 |
|    4 |    3 |                                 1 |
+------+------+-----------------------------------+

SQL

SELECT a,b, PERCENT_RANK() OVER(ORDER BY b) FROM pr_example;

+------+------+---------------------------------+
| a    | b    | percent_rank() over(order by b) |
+------+------+---------------------------------+
|    1 |    2 |                               0 |
|    2 |    2 |                               0 |
|    3 |    3 |              0.6666666666666666 |
|    4 |    3 |              0.6666666666666666 |
+------+------+---------------------------------+

PERCENT_RANK

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Syntax

Return Type

Examples

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