XMLISVALID

Syntax

Description of the illustration xmlisvalid.gif

Purpose

XMLISVALID checks whether the input XMLType_instance conforms to the relevant XML schema. It does not change the validation status recorded for XMLType_instance.

If the input XML document is determined to be valid, then XMLISVALID returns 1; otherwise, it returns 0. If you provide XMLSchema_URL as an argument, then that is used to check conformance. Otherwise, the XML schema specified by the XML document is used to check conformance.