While there is typically only one conceptual (or logical) and physical (or internal) view of the data, there can be any number of different external views. This allows users to see database information in a more business-related way rather than from a technical, processing viewpoint. For example, a financial department of a company needs the payment details of all employees as part of the company's expenses, but does not need details about employees that are the interest of the human resources department. Thus different departments need different views of the company's database. COUNT 3
QSN1 How many conceptual or physical views of data are there? ANS1 one QSN2 How many different external views of data are there? ANS2 any number QSN3 What is the benefit of external views of data? ANS3 see database information in a more business-related way