发明名称 |
Methods and apparatus for maintaining consistency during analysis of large data sets |
摘要 |
Methods and apparatus for updating a database using a multi-dimensional data model in which data corresponding to the database are organized in multi-dimensional data blocks. Each data block has summary information associated therewith corresponding to a current state of evolution of the associated data block. Dependency information is maintained in the data model which identifies data dependencies within and among the data blocks. A list of change entries identifies changes made to the data blocks and times at which the changes were made. A request to apply a change entry to a data block is received. The change entry is applied to the data block, including generating a dependency list of data blocks whose data depends directly or indirectly from the updated data block. The data blocks in the dependency list are processed in accordance with a dependency update algorithm to update the data blocks in the dependency list.
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申请公布号 |
US7571192(B2) |
申请公布日期 |
2009.08.04 |
申请号 |
US20050154259 |
申请日期 |
2005.06.15 |
申请人 |
ORACLE INTERNATIONAL CORPORATION |
发明人 |
GUPTA ANURAG;RAMAIYER KUMAR;SHORE MATTHEW;XIAO JOHN |
分类号 |
G06F12/00;G06F17/30 |
主分类号 |
G06F12/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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