Mary Lamb is an insurance sales representative.Her company has provided her with a laptop computer that uses wireless connectivity to access the accounting information system from virtually anywhere in the country.She,and other sales reps,have access to view customer and insurance product information.All sales reps also have access that allows them to enter and cancel customer orders.The permissions for Mary define a ________ in the company's database management system.
A)conceptual-level schema
B)subschema
C)data dictionary
D)physical view

Question

Quizplus · Accepted Answer

Mary's permissions define a subschema, which is a portion of the overall database that is relevant to her role and access permissions. The conceptual-level schema defines the overall structure of the database, the data dictionary contains metadata about the data within the database, and the physical view displays the database in terms of its physical storage on a computer system.

Mary Lamb Is an Insurance Sales Representative