Change: formfrom Datadata already present inside Oracle Database. Data MartDatamarts are systems designed for a particular line of business. The image below llustrates an example where purchasing, sales, and inventories are separated. In this example, a financial analyst might want to analyze historical data for purchases and sales.   View changes from previous version. (Word count: 2025)

Change: Data from flat/text files on the operating system, even Excel Spreadsheets, can be acessed using Oracle Database's 'external tables' feature (which makes flat files look as if they are tables which can be selected from using SQL just like other objects inside the Database) Data from other   View changes from previous version. (Word count: 2025)

Change: The DECIMAL data type is smaller at 8 bytes for each value and thus takes up less disk space than NUMBER data types. All calculations   View changes from previous version. (Word count: 1924)

Change:  A star schemaprovides one table or view with columns containing member id's representing all levels of a hierarchy for each dimension. Each row in the   View changes from previous version. (Word count: 1255)

Change: The data in the retailer's data warehouse system has two important components: dimensions and facts. The dimensions are products, customers, promotions, channels, and time. One   View changes from previous version. (Word count: 690)