# ST\_PolyFromWKB

## Syntax

```sql
ST_PolyFromWKB(wkb[,srid])
ST_PolygonFromWKB(wkb[,srid])
PolyFromWKB(wkb[,srid])
PolygonFromWKB(wkb[,srid])
```

## Description

Constructs a [POLYGON](https://mariadb.com/docs/server/reference/sql-statements/geometry-constructors/geometry-constructors/polygon) value using its [WKB](https://mariadb.com/docs/server/reference/sql-statements/geometry-constructors/wkb/well-known-binary-wkb-format) representation and [SRID](https://mariadb.com/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_srid).

`ST_PolyFromWKB()`, `ST_PolygonFromWKB()`, `PolyFromWKB()` and `PolygonFromWKB()` are synonyms.

## Examples

```sql
SET @g = ST_AsBinary(ST_PolyFromText('POLYGON((1 1,1 5,4 9,6 9,9 3,7 2,1 1))'));

SELECT ST_AsText(ST_PolyFromWKB(@g)) AS p;
+----------------------------------------+
| p                                      |
+----------------------------------------+
| POLYGON((1 1,1 5,4 9,6 9,9 3,7 2,1 1)) |
+----------------------------------------+
```

<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" %}