XML查询技术研究。
Query optimization technology in DB2 9.7 provides increased efficiency for processing queries against relational views of XML data.
DB 2 9.7中的查询优化技术能够提高针对XML数据的关系视图的查询处理效率。
New optimization technology in DB2 9.7 enables DB2 to automatically use the XML index officeIdx defined on the underlying XML column to process this query.
DB 2 9.7中新的优化技术让DB2能够自动地使用底层xml列上定义的xml索引officeidx来处理这个查询。
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