# NQL sum()

`sum()` 関数は数値の列の合計を返します。

{% code overflow="wrap" lineNumbers="true" %}

```
users
| include web.events during past 24h
| where application.name == "Salesforce"
| compute usage_duration = duration.sum()
| where usage_duration != 0
| sort usage_duration desc
```

{% endcode %}

| ユーザー名            | ADフルネーム               | 使用期間   |
| ---------------- | --------------------- | ------ |
| jmansel\@kanopy  | ジェシー・マンサル             | 34分20秒 |
| lahmir\@kanopy   | ラトレル・アーミール            | 26分16秒 |
| abilete\@kanopy  | アディバー・バイレーテ           | 25分46秒 |
| kkamilah\@kanopy | Kolton Mariam Kamilah | 24分53秒 |
| jadnan\@kanopy   | Jimmie Adnan          | 24分47秒 |
| bkyrie\@kanopy   | ブレーデン・ブランデン・カイリー      | 24分7秒  |
| melyssa\@kanopy  | ミカ・マッケナ・エリッサ          | 23分6秒  |
| csami\@kanopy    | Cody Treyton Sami     | 23分3秒  |


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