Oracle8i Release 1 added support for the CUBE and ROLLUP extensions to the SELECT statement’s GROUP BY clause. Oracle8i Release 2 introduced a powerful group of SQL functions supporting business intelligence queries. These functions enable ranking, moving and cumulative aggregates, lead and lag and more. Along with the analytic functions, Oracle8i Release 2 also supports efficient multi-dimensional aggregations. These analytic functions and multi-dimensional aggregation features are a foundation for extending Oracle’s analytic capabilities. Oracle 9i beta enhances this foundation and expands its functional use to include list partitioning, bitmap join indexes, OLAP server, new families of analytic functions and important extensions for the GROUP BY clause. This session reviews Oracle’s SQL analytic functions, multi-dimensional aggregations and partitioning. Business examples are presented along with methods to utilize these potent enhancements.
Oracle’s SQL Analytic Functions in 8i and 9i
Presented by David Fuston
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