发明授权
- 专利标题： Operators for accessing hierarchical data in a relational system
- 专利标题（中）： 用于访问关系系统中层次数据的操作员
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申请号： US10260138申请日： 2002-09-27
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公开(公告)号： US07028037B1公开(公告)日： 2006-04-11
- 发明人: Nipun Agarwal , Ravi Murthy , Eric Sedlar , Sivasankaran Chandrasekar , Fei Ge
- 申请人： Nipun Agarwal , Ravi Murthy , Eric Sedlar , Sivasankaran Chandrasekar , Fei Ge
- 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
- 代理商 Marcel K. Bingham
- 主分类号： G06F7/00
- IPC分类号： G06F7/00 ; G06F17/00
摘要：
Techniques and systems are provided for efficiently managing hierarchical relational data stored in object-relational database system by extending the syntax of the database language supported by the database system (e.g. SQL) to incorporate several new “hierarchical” operators. These operators are evaluated based on the hierarchical relationship defined for hierarchical relational data. The operators maybe incorporated in SQL queries along with relational operators.
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