ClickHouse/docs/en/sql-reference/window-functions/first_value.md

---
slug: /en/sql-reference/window-functions/first_value
sidebar_label: first_value
sidebar_position: 3
---

# first_value

Returns the first value evaluated within its ordered frame. By default, NULL arguments are skipped, however the `RESPECT NULLS` modifier can be used to override this behaviour.

**Syntax**

```sql
first_value (column_name) [[RESPECT NULLS] | [IGNORE NULLS]]
  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])
```

Alias: `any`.

:::note
Using the optional modifier `RESPECT NULLS` after `first_value(column_name)` will ensure that `NULL` arguments are not skipped.
See [NULL processing](../aggregate-functions/index.md/#null-processing) for more information.
:::

For more detail on window function syntax see: [Window Functions - Syntax](./index.md/#syntax).

**Returned value**

- The first value evaluated within its ordered frame.

**Example**

In this example the `first_value` function is used to find the highest paid footballer from a fictional dataset of salaries of Premier League football players.

Query:

```sql
DROP TABLE IF EXISTS salaries;
CREATE TABLE salaries
(
    `team` String,
    `player` String,
    `salary` UInt32,
    `position` String
)
Engine = Memory;

INSERT INTO salaries FORMAT Values
    ('Port Elizabeth Barbarians', 'Gary Chen', 196000, 'F'),
    ('New Coreystad Archdukes', 'Charles Juarez', 190000, 'F'),
    ('Port Elizabeth Barbarians', 'Michael Stanley', 100000, 'D'),
    ('New Coreystad Archdukes', 'Scott Harrison', 180000, 'D'),
    ('Port Elizabeth Barbarians', 'Robert George', 195000, 'M'),
    ('South Hampton Seagulls', 'Douglas Benson', 150000, 'M'),
    ('South Hampton Seagulls', 'James Henderson', 140000, 'M');
```

```sql
SELECT player, salary, 
       first_value(player) OVER (ORDER BY salary DESC) AS highest_paid_player
FROM salaries;
```

Result:

```response
   ┌─player──────────┬─salary─┬─highest_paid_player─┐
1. │ Gary Chen       │ 196000 │ Gary Chen           │
2. │ Robert George   │ 195000 │ Gary Chen           │
3. │ Charles Juarez  │ 190000 │ Gary Chen           │
4. │ Scott Harrison  │ 180000 │ Gary Chen           │
5. │ Douglas Benson  │ 150000 │ Gary Chen           │
6. │ James Henderson │ 140000 │ Gary Chen           │
7. │ Michael Stanley │ 100000 │ Gary Chen           │
   └─────────────────┴────────┴─────────────────────┘
```