# 22. Virtuoso Functions Guide - XMLType.getSchemaURL

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Functions Index

## XMLType.getSchemaURL

Returns the URL of the XML schema definition for schema based instances, NULL for non-schema based.
XMLType.getSchemaURL
Description

The function returns the URL of the XML Types associate XML schema. This applies only to schema based instances. It will return NULL for non-schema based types.

Return Types

The function returns string.

Examples
Simple test

The call of XMLType constructor creates an schema-based instance and getSchemaURL() returns the specified URL

    select XMLType('<sample />', 'file://xmlschema/test0001/clean.xsd').getSchemaURL()
    callret
    VARCHAR
    _______________________________________________________________________________

    file://xmlschema/test0001/clean.xsd

    1 Rows. -- 00000 msec.

See Also

XMLType.isSchemaBased()