Object Oriented Database Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s). False True False True ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database A relationship should be specified how in the ODL? Both directions Neither direction One direction starting with the first class One direction starting with the second class Both directions Neither direction One direction starting with the first class One direction starting with the second class ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database An extent is which of the following? A keyword that indicates that the subclass inherits from a superclass A keyword that indicates that the superclass inherits from a subclass Only one instance of a class within a database The set of all instances of a class within a database A keyword that indicates that the subclass inherits from a superclass A keyword that indicates that the superclass inherits from a subclass Only one instance of a class within a database The set of all instances of a class within a database ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database Before specifying a key for a class, you must specify its extent. True False True False ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database The reserved word enum is used for which of the following? To define a range for a relationship. All of these To define a range for an attribute. To define a range for a class. To define a range for a relationship. All of these To define a range for an attribute. To define a range for a class. ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database ODL supports the abstract keyword for classes and operations. True False True False ANSWER DOWNLOAD EXAMIANS APP
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