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Click to edit Master subtitle style 10/2/11 Business Intelligence Software and Techniques Syam Menon MIS 6324
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10/2/11 Databases Used to maintain and access data efficiently Mostly applied for On-Line Transaction Processing (OLTP) Designed and optimized for fast transactions Inserts, updates, and deletes Typically contains current, “active” data. Old data are archived. Have reporting capabilities Can query database via a query language like SQL Example: List all student IDs and corresponding grades of students enrolled in MIS 6324 and whose grade is at least B. Query result is: 22 ID Grade utd121 B utd124 A- utd126 B+
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10/2/11 Databases Consist of flat, 2-dimensional tables Some tables (e.g. pivot table in MS-Excel) can be multi-dimensional, but generation is manual Can multi-dimensional tables be represented automatically? Data Warehousing and O n L ine A nalytical P rocessing (OLAP) Queries not intended for knowledge discovery Business Intelligence 33
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10/2/11 Data Warehouse An application database is designed (and optimized) to record . A data warehouse is designed (and optimized) to respond to analytical questions that are critical for a business.
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