# dense_rank

> For the complete documentation index, see [llms.txt](https://docs.redpanda.com/llms.txt). Component-specific: [cloud-data-platform-full.txt](https://docs.redpanda.com/cloud-data-platform-full.txt)

---
title: dense_rank
latest-operator-version: v26.1.4
latest-console-tag: v3.7.3
latest-connect-version: 4.93.0
latest-redpanda-tag: v26.1.9
docname: sql/sql-functions/window-functions/dense-rank
page-component-name: cloud-data-platform
page-version: master
page-component-version: master
page-component-title: Cloud
page-relative-src-path: sql/sql-functions/window-functions/dense-rank.adoc
page-edit-url: https://github.com/redpanda-data/cloud-docs/edit/main/modules/reference/pages/sql/sql-functions/window-functions/dense-rank.adoc
description: The `dense_rank()` window function assigns a rank for each value within a specified group, based on the ORDER BY expression in the OVER clause.
page-topic-type: reference
page-git-created-date: "2026-05-26"
page-git-modified-date: "2026-05-26"
---

<!-- Source: https://docs.redpanda.com/cloud-data-platform/reference/sql/sql-functions/window-functions/dense-rank.md -->

The `dense_rank()` window function assigns a rank for each value within a specified group, based on the `ORDER BY` expression in the `OVER` clause. Unlike the `rank()` function, which can leave gaps in the ranking sequence when there are ties, `dense_rank()` provides consecutive rank values without any gaps. This function can be used with all [data types supported by Redpanda SQL](https://docs.redpanda.com/cloud-data-platform/reference/sql/sql-data-types/).

## [](#syntax)Syntax

The syntax for this function is:

```sql
DENSE_RANK() OVER (
  [PARTITION BY partition_expression]
  ORDER BY sort_expression
)
```

The output type for this function is a `bigint` and it indicates the rank of values in a table, regardless of the input types. If the `ORDER BY` expression is omitted, all ranks default to 1. If an optional `PARTITION BY` expression is included, the rankings are reset for each group of rows. The rows with equal values for the ranking criteria receive the same rank.

> 📝 **NOTE**
>
> Unlike `rank()` function, there is no gap in the sequence of ranked values (if two rows are ranked 1, the next rank is 2)

## [](#parameters)Parameters

-   `()`: This function does not take any arguments, but the parentheses are required.

-   `PARTITION BY`: Optional. Divides the result set into partitions, each processed independently. If omitted, the entire result set is treated as a single partition.

-   `ORDER BY`: Order of rows in each partition to which the function is applied.


## [](#examples)Examples

The following examples use a `winsales` table that stores information about some sales transactions:

```sql
CREATE TABLE winsales(
  salesid int,
  dateid date,
  sellerid int,
  buyerid text,
  qty int,
  qty_shipped int);
INSERT INTO winsales VALUES
    (30001, '8/2/2003', 3, 'b', 10, 10),
    (10001, '12/24/2003', 1, 'c', 10, 10),
    (10005, '12/24/2003', 1, 'a', 30, null),
    (40001, '1/9/2004', 4, 'a', 40, null),
    (10006, '1/18/2004', 1, 'c', 10, null),
    (20001, '2/12/2004', 2, 'b', 20, 20),
    (40005, '2/12/2004', 4, 'a', 10, 10),
    (20002, '2/16/2004', 2, 'c', 20, 20),
    (30003, '4/18/2004', 3, 'b', 15, null),
    (30004, '4/18/2004', 3, 'b', 20, null),
    (30007, '9/7/2004', 3, 'c', 30, null);
```

### [](#dense_rank-with-order-by)`dense_rank()` with ORDER BY

This example executes the `dense_rank()` function with `ORDER BY` keyword and calculates the descending dense rank of all rows based on the quantity sold:

```sql
SELECT salesid, qty,
  Dense_RANK() OVER (ORDER BY qty DESC) AS d_rnk,
  RANK() OVER (ORDER BY qty DESC) AS rnk
FROM winsales
ORDER BY 2,1;
```

Output that includes the sales ID along with the quantity sold and both dense and regular ranks:

```sql
  salesid | qty | d_rnk | rnk
---------+-----+-------+-----
   10001 |  10 |     5 |   8
   10006 |  10 |     5 |   8
   30001 |  10 |     5 |   8
   40005 |  10 |     5 |   8
   30003 |  15 |     4 |   7
   20001 |  20 |     3 |   4
   20002 |  20 |     3 |   4
   30004 |  20 |     3 |   4
   10005 |  30 |     2 |   2
   30007 |  30 |     2 |   2
   40001 |  40 |     1 |   1
(11 rows)
```

### [](#dense_rank-with-order-by-and-partition_by)`dense_rank()` with ORDER BY and PARTITION_BY

This example executes the `dense_rank()` function with `ORDER BY` keyword and `PARTITION BY` clause, partitions the table by seller ID, orders each partition by the quantity, and assigns a dense rank to each row:

```sql
SELECT salesid, sellerid, qty
  DENSE_RANK() OVER (PARTITION BY sellerid ORDER BY qty DESC) AS d_rnk
FROM winsales
ORDER BY 2,3,1;
```

The query returns:

```sql
 salesid | sellerid | qty | d_rnk
---------+----------+-----+-------
   10001 |        1 |  10 |     2
   10006 |        1 |  10 |     2
   10005 |        1 |  30 |     1
   20001 |        2 |  20 |     1
   20002 |        2 |  20 |     1
   30001 |        3 |  10 |     4
   30003 |        3 |  15 |     3
   30004 |        3 |  20 |     2
   30007 |        3 |  30 |     1
   40005 |        4 |  10 |     2
   40001 |        4 |  40 |     1
(11 rows)
```