On Line Analytical Processing
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In computing, online analytical processing, or OLAP (), is an approach to answering multi-dimensional analytical (multi-dimensional analytical|MDA) queries swiftly. OLAP is part of the broader category of business intelligence, which also encompasses relational database report writing and data mining. Typical applications of OLAP include business reporting for sales, marketing, management reporting, business process management (BPM), budgeting and forecasting|forecasting, financial reporting and similar areas, with new applications coming up, such as agriculture. OLAP tools enable users to analyze multidimensional data interactively from multiple perspectives. OLAP consists of three basic analytical operations: consolidation (roll-up), drill-down, and slicing and dicing. Consolidation involves the aggregation of data that can be accumulated and computed in one or more dimensions. For example, all sales offices are rolled up to the sales department or sales division to anticipate sales...
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