> ## Documentation Index
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> Use this file to discover all available pages before exploring further.

# ST_Z

Returns Z Coordinate of given Point, null otherwise.

<img src="https://mintcdn.com/wherobots/wLm_IRUSNlHZTHJP/images/sql-functions/ST_Z/ST_Z.svg?fit=max&auto=format&n=wLm_IRUSNlHZTHJP&q=85&s=de7a261dcfd1712e338152ff1b4592f7" alt="ST_Z" width="500" height="300" data-path="images/sql-functions/ST_Z/ST_Z.svg" />

## Signatures

```sql theme={"system"}
ST_Z(pointA: Point)
```

## Parameters

<ParamField body="pointA" type="Point" required>
  The input point.
</ParamField>

## Return type

<ResponseField type="Double">
  A numeric value.
</ResponseField>

## Example

```sql theme={"system"}
SELECT ST_Z(ST_POINT(0.0 25.0 11.0))
```

```
11.0
```