Object Oriented Database ODL supports the abstract keyword for classes and operations. False True False True ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database An attribute's value is either a literal or an object identifier. False True False True ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database An extent is which of the following? A keyword that indicates that the superclass inherits from a subclass The set of all instances of a class within a database Only one instance 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 The set of all instances of a class within a database Only one instance of a class within a database A keyword that indicates that the subclass inherits from a superclass ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database Using OQL, you may do which of the following? Return a collection of elements without duplicates. All of these Return a specific subset of elements using a given criteria. Return an entire collection of elements including duplicates. Return a collection of elements without duplicates. All of these Return a specific subset of elements using a given criteria. Return an entire collection of elements including duplicates. ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database The reserved word enum is used for which of the following? All of these To define a range for an attribute. To define a range for a relationship. To define a range for a class. All of these To define a range for an attribute. To define a range for a relationship. To define a range for a class. 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
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