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title: stddev_samp()
collection: developer
version: current
locale: en-us
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canonical_url: https://developer.salesforce.com/docs/analytics/bi-dev-guide-sql/guide/bi-sql-aggregate-stddev-samp.html
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content_type: documentation
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products:
  - SQL for Analytics Developer Guide
  - analytics
---

# stddev_samp()

Returns the standard deviation of values in a field. Accepts measure fields as input. This function does not accept expressions.

`stddev_samp()` follows this syntax.

```nolang
SELECT stddev_pop(FIELD1, FIELD2)
FROM DATASET;
```