The Object Query Language is which of the following? Similar to SQL and uses a select-from-where structure Similar to SQL and uses a select-where structure Similar to SQL and uses a from-where structure Not similar to SQL TRUE ANSWER : ? YOUR ANSWER : ?
The object definition language (ODL) is which of the following? A method to implement a logical schema Used to develop logical schemas All of these A data definition language for OODB TRUE ANSWER : ? YOUR ANSWER : ?
An atomic literal is which of the following? Long Boolean All of these Strings TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is true concerning the following statement: class Manager extends Employee Manager is an abstract class and a subclass. Manager is a concrete class and a superclass. Manager is an abstract class and a superclass. Manager is a concrete class and a subclass. TRUE ANSWER : ? YOUR ANSWER : ?
Literals do not have identifiers, and, therefore, cannot be individually referenced like objects. True False TRUE ANSWER : ? YOUR ANSWER : ?
The keyword "inverse" is used in which of the following? Relationship All of these Attribute Class TRUE ANSWER : ? YOUR ANSWER : ?
An extent is which of the following? The set of all instances of a class within a database A keyword that indicates that the subclass inherits from a superclass Only one instance of a class within a database A keyword that indicates that the superclass inherits from a subclass TRUE ANSWER : ? YOUR ANSWER : ?
A relationship should be specified how in the ODL? One direction starting with the first class Both directions Neither direction One direction starting with the second class TRUE ANSWER : ? YOUR ANSWER : ?