Object Oriented Database An extent is which of the following? A keyword that indicates that the subclass inherits from a superclass The set of all instances of a class within a database A keyword that indicates that the superclass inherits from a subclass Only one instance of a class within a database A keyword that indicates that the subclass inherits from a superclass The set of all instances of a class within a database A keyword that indicates that the superclass inherits from a subclass Only one instance of a class within a database ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database Specifying a key ensures that no two objects belonging to a class have the same value for the key attribute(s). True False True False ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database ODL supports which of the following types of association relationships? Unary and Binary and Ternary and higher Unary and Binary Unary Unary and Binary and Ternary Unary and Binary and Ternary and higher Unary and Binary Unary Unary and Binary and Ternary ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database Database objects are almost always transient. True False True False ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database Which of the following is true concerning an ODBMS? All of these They have the ability to store complex data types on the Web. They are overtaking RDBMS for all applications. They are most useful for traditional, two-dimensional database table applications. All of these They have the ability to store complex data types on the Web. They are overtaking RDBMS for all applications. They are most useful for traditional, two-dimensional database table applications. ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database ODL supports the abstract keyword for classes and operations. True False True False ANSWER DOWNLOAD EXAMIANS APP