SYSTEM AND METHOD FOR SUPPORTING XQUERY UPDATE LANGUAGE

摘要

A system and a method for processing update of XML(eXtensible Markup Language) are provided to support XQuery update for XML schema, which is defined according to a basic SQL(Structured Query Language)/XML mapping rule, by an XML DBMS(DataBase Management System) of relational database basis in order to perform a query operation of XML data managed by a relational database with an XQuery(XML Query). A parser(123) generates an XQuery update context analysis tree by parsing an XQuery sentence received from the outside. A verifier(124) verifies validity of the received XQuery sentence by rounding the XQuery update context analysis tree. A converter(125) converts the XQuery update context analysis tree into an XQuery update query tree by rounding the XQuery update context analysis tree based on verification of the verifier. An executor(126) executes the relational database query sentence to the relational database(130) connected to the outside by generating the relational database query sentence while rounding the XQuery update query tree.