MIS 451 Building Business Intelligence Systems Data Analysis

2 Project Planning Requirements Analysis Physical Design Logical Design Data Staging Data Analysis (OLAP) Designer Discoverer Builder

3 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.

4 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

5 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

6 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.