XML Data Integration

WHERE <person>

<name></> ELEMENT_AS $n

<ssn> $ssn </>

</> IN “www.a.b.c/data.xml”

<taxpayer>

<ssn> $ssn </>

<income></> ELEMENT_AS $I

</> IN “www.irs.gov/taxpayers.xml”

CONSTRUCT <result> $n $I </>

Query can access more than one XML document.

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