Attribute-based access for multi-dimensional databases
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United States of America Patent
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Aug 17, 1999
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N/A
app pub date -
Jun 30, 1997
filing date -
Jun 30, 1997
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Abstract
A method, apparatus, and article of manufacture for using a relational database management system to support on-line analytical processing (OLAP) systems. A multi-dimensional database is represented as a relational schema in the relational database. The multi-dimensional database has one or more dimensions having one or more members. Each value in the multi-dimensional database is identified by the intersection of one member from each dimension. The relational schema includes a fact table and related dimension tables. The fact table has a dimension column for all but one of the dimensions of the multi-dimensional database and a value column for each member of the remaining dimension. The fact table has at least one row that contains the values corresponding to the intersection of the members identified by the dimension columns and the members associated with the value columns. Each dimension table has a row for each member of a dimension. At least one dimension table has one or more attribute columns for holding attribute values for members defined by the dimension table.
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