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# SHA256



#### Syntax {#syntax}


```
SHA256( value )
```

#### Description {#description}
Returns the SHA-256 hash of `value` as a hexadecimal string.

**Argument types:**
- `value` — `String`


**Return type**: `String`

#### Example {#examples}

```
SHA256("DataLens") = "7466C4153CEB3184D0FDABEA1C7EAE86B24E184191C197845B96E1D8B3817F98"
```


#### Data source support {#data-source-support}

`ClickHouse 21.8`, `MySQL 5.7`, `Oracle Database 12c (12.1)`, `PostgreSQL 9.3`, `Trino`, `YDB`.