发明申请
- 专利标题: Index for accessing XML data
- 专利标题(中): 用于访问XML数据的索引
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申请号: US10884311申请日: 2004-07-02
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公开(公告)号: US20050228792A1公开(公告)日: 2005-10-13
- 发明人: Sivasankaran Chandrasekaran , Ravi Murthy , Ashish Thusoo , Anh-Tuan Tran , Sreedhar Mukkamalla , Eric Sedlar , Nipun Agarwal
- 申请人: Sivasankaran Chandrasekaran , Ravi Murthy , Ashish Thusoo , Anh-Tuan Tran , Sreedhar Mukkamalla , Eric Sedlar , Nipun Agarwal
- 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
- 主分类号: G06F17/00
- IPC分类号: G06F17/00 ; G06F17/22 ; G06F17/30
摘要:
Techniques are provided for indexing XML documents. According to one embodiment, a PATH table created for storing one row for each indexed node of the XML documents. The PATH table row for a node includes (1) information for locating the XML document that contains the node, (2) information that identifies the path of the node, and (3) information that identifies the position of the node within the hierarchical structure of the XML document that contains the node. If the node is associated with the value, then the PATH table row for the node may also include the value. Use of the PATH table to answer XPath queries is facilitated by secondary indexes.
公开/授权文献
- US07499915B2 Index for accessing XML data 公开/授权日:2009-03-03