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MIS 451 Building Business Intelligence Systems. Data Analysis. Project Planning. Requirements Analysis. Logical Design. Designer. Physical Design. Data Staging. Builder. Data Analysis (OLAP). Discoverer. What is OLAP?.
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MIS 451Building Business Intelligence Systems Data Analysis
Project Planning Requirements Analysis Logical Design Designer Physical Design Data Staging Builder Data Analysis (OLAP) Discoverer
What is OLAP? • OLTP On-Line Transaction Processing. OLTP is a type of computing in which the emphasis is on processing transactions as they are received by the application. • OLAP On-Line Analytical Processing. OLAP is a category of software technology that enables analysts, managers, and executives to gain insight into data through fast, consistent, interactive access to a wide variety of possible views of information that has been transformed from raw data to a data warehouse.
OLAP tool – Oracle Discoverer • Step 1: log into sql*plus with username/password: dbsr/mis • Step 2: type in sql commnad grant select on table_name to your_designer_username; • Step 3: log into Oracle Discover user edition with your designer username and password. Make sure EUL is DBSR
OLAP tool – Oracle Discoverer • Step 4: Create a new workbook • Step 5: select a table (report) layout and create a report • List sales by month table • List sales by month and by gender cross-tab • List sales by year and by product category page-detail table • Step 6: Save the workbook
OLAP tool – Oracle Discoverer • Step 7: drill-up and drill-down operations • Adding/removing dimensions • Concept hierarchy of dimension attributes City State Country Month Quarter Year Product Product Category • Step 8: Drill across operation • Readings: Data Mining book pp58-61.