## Syntax
```mermaid
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'themeVariables': {
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flowchart LR
Start((START)) --> SQRT[SQRT]:::quoted
SQRT --> End((END))
```
## Purpose
The `SQRT` SQL function returns the square root of the provided number.
See also [[POWER]].
Parameters:
- Input (`decimal`): the number to get the square root of.
Returns: A number which represents the square root of the provided number.
## Examples
The following example retrieves the square root of 256:
```sql
select sqrt(256)
-------------------
16
```
The following example retrieves the square root of 2:
```sql
select sqrt(2)
-------------------
1.4142135623731
```