> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/sql-statements/geometry-constructors/linestring-properties/st_numpoints.md).

# ST\_NUMPOINTS

## Syntax

```bnf
ST_NumPoints(ls)
NumPoints(ls)
```

## Description

Returns the number of [Point](/docs/server/reference/sql-statements/geometry-constructors/geometry-constructors/point.md) objects in the [LineString](/docs/server/reference/sql-statements/geometry-constructors/geometry-constructors/linestring.md) value `ls`.

`ST_NumPoints()` and `NumPoints()` are synonyms.

## Examples

```sql
SET @ls = 'LineString(1 1,2 2,3 3)';

SELECT NumPoints(GeomFromText(@ls));
+------------------------------+
| NumPoints(GeomFromText(@ls)) |
+------------------------------+
|                            3 |
+------------------------------+
```

<sub>*This page is licensed: GPLv2, originally from*</sub> [<sub>*fill\_help\_tables.sql*</sub>](https://github.com/MariaDB/server/blob/main/scripts/fill_help_tables.sql)

{% @marketo/form formId="4316" %}