../code/conceptPage.scroll

id xml-ql
name XML Query Language
appeared 1998
tags queryLanguage
description We propose a query language for XML, called XML-QL, as one possible answer to these questions. The language has a SELECT-WHERE construct, like SQL, and borrows features of query languages recently developed by the database research community for semistructured data.

reference https://www.w3.org/TR/1998/NOTE-xml-ql-19980819/

example
 WHERE <book>
         <publisher><name>Addison-Wesley</></>
         <title> $t</>
         <author> $a</>
       </> IN "www.a.b.c/bib.xml"
 CONSTRUCT <result>
              <author> $a</>
              <title> $t</>
           </>