> 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/wkb/mlinefromwkb.md).

# MLineFromWKB

## Syntax

```bnf
MLineFromWKB(wkb[,srid])
MultiLineStringFromWKB(wkb[,srid])
```

## Description

Constructs a [MULTILINESTRING](/docs/server/reference/sql-statements/geometry-constructors/geometry-constructors/multilinestring.md) value using its [WKB](/docs/server/reference/sql-statements/geometry-constructors/wkb/well-known-binary-wkb-format.md) representation and [SRID](/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_srid.md).

`MLineFromWKB()` and `MultiLineStringFromWKB()` are synonyms.

## Examples

```sql
SET @g = ST_AsBinary(MLineFromText('MULTILINESTRING((10 48,10 21,10 0),(16 0,16 23,16 48))'));

SELECT ST_AsText(MLineFromWKB(@g));
+--------------------------------------------------------+
| ST_AsText(MLineFromWKB(@g))                            |
+--------------------------------------------------------+
| MULTILINESTRING((10 48,10 21,10 0),(16 0,16 23,16 48)) |
+--------------------------------------------------------+
```

<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" %}