Data Cube: A Relational Aggregation Operator Generalizing Group-By, Cross-Tab, and Sub-Total

Data analysis applications typically aggregate data across many dimensions looking for anomalies or unusual patterns. The SQL aggregate functions and the GROUP BY operator produce zero-dimensional or one-dimensional aggregates. Applications need the N-...

In a heterogeneous database system, a query for one type of database system (i.e., a source query) may have to be translated to an equivalent query (or queries) for execution in a different type of database system (i.e., a target query). Usually, for a ...

A data cube provides aggregate information to support a class of queries such as a range-sum query. To process those queries efficiently, some auxiliary information, i.e. prefix sums, is pre-computed and maintained. In reality however most of high ...