Complex XML documents can be dynamically constructed by Teiid using XML Document Models. A document model is generally created from a schema. The document model is bound to relevant SQL statements through mapping classes. See the Designer guide for more on creating document models.

XML documents may also created via XQuery with the XMLQuery function or with various other SQL/XML functions.

Querying XML documents is similar to querying relational tables. An idiomatic SQL variant with special scalar functions gives control over which parts of a given document to return.