> 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/geometry-properties.md).

# Geometry Properties

* [BOUNDARY](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/geometry-properties-boundary.md)
* [DIMENSION](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/dimension.md)
* [ENVELOPE](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/geometry-properties-envelope.md)
* [GeometryN](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/geometry-properties-geometryn.md)
* [GeometryType](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/geometry-properties-geometrytype.md)
* [IsClosed](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/isclosed.md)
* [IsEmpty](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/geometry-properties-isempty.md)
* [IsRing](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/isring.md)
* [IsSimple](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/geometry-properties-issimple.md)
* [NumGeometries](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/geometry-properties-numgeometries.md)
* [SRID](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/geometry-properties-srid.md)
* [ST\_BOUNDARY](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_boundary.md)
* [ST\_DIMENSION](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_dimension.md)
* [ST\_ENVELOPE](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_envelope.md)
* [ST\_GEOMETRYN](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_geometryn.md)
* [ST\_GEOMETRYTYPE](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_geometrytype.md)
* [ST\_ISCLOSED](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_isclosed.md)
* [ST\_ISEMPTY](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_isempty.md)
* [ST\_IsRing](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_isring.md)
* [ST\_IsSimple](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_issimple.md)
* [ST\_NUMGEOMETRIES](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_numgeometries.md)
* [ST\_RELATE](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_relate.md)
* [ST\_SRID](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_srid.md)