Method and apparatus for access, integration, and analysis of heterogeneous data sources via the manipulation of metadata objects
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United States of America Patent
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May 1, 2012
Grant Date -
Oct 30, 2008
app pub date -
Jul 8, 2008
filing date -
Aug 10, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A computer-based method represents a subset of a dataset table of rows and columns. The method includes selecting a set of blocking variables corresponding to blocking columns of the dataset table. For each row in the dataset table, a tuple of values for the blocking columns uniquely identifies the row within the dataset table. The method also includes selecting a set of non-blocking variables that correspond to columns of the subset. The set of non-blocking variables does not intersect the set of blocking variables. The method also includes creating a block information structure that includes both the set of non-blocking variables and, for each blocking variable in the set of blocking variables, a set of values.
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