专利名称:Creating Indexes for Databases发明人:Qi Chen,Hai Feng Li,Guang Zhou Zhang申请号:US13073377申请日:20110328
公开号:US20110246479A1公开日:20111006
专利附图:
摘要:An index is created for a database by selecting at least one column of adatabase table as a basis to create the index, generating at least one index of a treestructure according to the at least one column, where a pointer stored in a leaf node ofthe at least one index is null. In an example embodiment, a value to a pointer is stored in
a leaf node according to an intermediate result in response to the intermediate resultbeing generated, where the pointer stored in the leaf node points to a data page storingthe intermediate result. The created index can be reused and the intermediate result canbe effectively used, such that the efficiency of database operation is improved.
申请人:Qi Chen,Hai Feng Li,Guang Zhou Zhang
地址:Hayward CA US,Beijing CN,Beijing CN
国籍:US,CN,CN
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