> ## Documentation Index
> Fetch the complete documentation index at: https://private-7c7dfe99-fix-nav-issues.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

> Documentação da função de janela row_number

# row_number

Numera a linha atual dentro da sua partição, começando em 1.

**Sintaxe**

```sql theme={null}
row_number (column_name)
  OVER ([[PARTITION BY grouping_column] [ORDER BY sorting_column] 
        [ROWS or RANGE expression_to_bound_rows_withing_the_group]] | [window_name])
FROM table_name
WINDOW window_name as ([[PARTITION BY grouping_column] [ORDER BY sorting_column])
```

Para mais detalhes sobre a sintaxe de funções de janela, consulte: [Funções de janela - Sintaxe](/pt-BR/reference/functions/window-functions#syntax).

**Valor retornado**

* Um número para a linha atual dentro da sua partição. [UInt64](/pt-BR/reference/data-types/int-uint).

**Exemplo**

O exemplo a seguir é baseado no exemplo apresentado no vídeo tutorial [Ranking window functions in ClickHouse](https://youtu.be/Yku9mmBYm_4?si=XIMu1jpYucCQEoXA).

```sql title="Query" theme={null}
CREATE TABLE salaries
(
    `team` String,
    `player` String,
    `salary` UInt32,
    `position` String
)
Engine = Memory;

INSERT INTO salaries FORMAT Values
    ('Port Elizabeth Barbarians', 'Gary Chen', 195000, 'F'),
    ('New Coreystad Archdukes', 'Charles Juarez', 190000, 'F'),
    ('Port Elizabeth Barbarians', 'Michael Stanley', 150000, 'D'),
    ('New Coreystad Archdukes', 'Scott Harrison', 150000, 'D'),
    ('Port Elizabeth Barbarians', 'Robert George', 195000, 'M');
```

```sql title="Query" theme={null}
SELECT player, salary, 
       row_number() OVER (ORDER BY salary DESC) AS row_number
FROM salaries;
```

```response title="Response" theme={null}
   ┌─player──────────┬─salary─┬─row_number─┐
1. │ Gary Chen       │ 195000 │          1 │
2. │ Robert George   │ 195000 │          2 │
3. │ Charles Juarez  │ 190000 │          3 │
4. │ Scott Harrison  │ 150000 │          4 │
5. │ Michael Stanley │ 150000 │          5 │
   └─────────────────┴────────┴────────────┘
```