发明授权
- 专利标题： Efficient query processing of XML data using XML index
- 专利标题（中）： 使用XML索引对XML数据进行高效查询处理
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申请号： US10944170申请日： 2004-09-16
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公开(公告)号： US07398265B2公开(公告)日： 2008-07-08
- 发明人: Ashish Thusoo , Ravi Murthy , Sivasankaran Chandrasekar , Nipun Agarwal , Eric Sedlar
- 申请人： Ashish Thusoo , Ravi Murthy , Sivasankaran Chandrasekar , Nipun Agarwal , Eric Sedlar
- 申请人地址： US CA Redwood Shores
- 专利权人： Oracle International Corporation
- 当前专利权人： Oracle International Corporation
- 当前专利权人地址： US CA Redwood Shores
- 代理机构： Hickman Palermo Truong & Becker LLP
- 主分类号： G06F17/30
- IPC分类号： G06F17/30
摘要：
A method and apparatus is provided for translating queries, such as path expressions and SQL/XML constructs, into SQL statements to be executed against an XML index, which improves processor time as opposed to applying path expressions directly to the original XML documents to extract the desired information. Simple path expressions, filter expressions, descendant axes, wildcards, logical expressions, relational expressions, literals, and other path expressions are all translated into SQL for efficient querying of an XML index. Similarly, rules for translating SQL/XML constructs into SQL are provided.
公开/授权文献
- US20050229158A1 Efficient query processing of XML data using XML index 公开/授权日：2005-10-13
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