作者: Steven M. Beitzel , Eric C. Jensen , Frederick J. Ingham , David A. Grossman , Tim Lewis
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摘要: We present an innovative method for implementing XML-QL using a relational database back-end and ad hoc query translation to SQL. Our system guarantees support XML documents of any schema, or combination schemas. Furthermore, we ensure that changes the schema source will not require change underlying database. have developed prototype which accepts queries translates them set equivalent SQL queries. These are then posed back-end, results obtained. discuss architecture implementation details our prototype, give detailed description algorithms used in translation.