. If an attribute of a composite key is dependent on an attribute of the other composite key, a normalization called ................ is needed.

The ability to modify the conceptual schema without causing any change to the application program is known as :

• [A] Physical data independence
• [B] Logical data independence
• [C] External data independence
• [D] Static data

The ---- data base can be a choice for the SFMS use ---

• [A] My SQL
• [B] Oracle
• [C] Both (1) & (2)
• [D] D Base

the tradition storage of data that is organized by customer,stored in separate folders in filling cabinets is an example of what type of database system #

Which is not true of a correlated subquery?

• [A] EXISTS/NOT EXISTS is a form of a correlated subquery.
• [B] The processing of the SELECT statements is nested.
• [C] They can be used to verify functional dependencies.
• [D] They are very similar to a regular subquery.

The fact that the same operation may apply to two or more classes is called what?

• [A] Inheritance
• [B] Polymorphism
• [C] Encapsulation
• [D] Multiple classification