Object Oriented Database Before specifying a key for a class, you must specify its extent. False True False True 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). False True False True ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database 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 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 ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database The Object Query Language is which of the following? Similar to SQL and uses a from-where structure Similar to SQL and uses a select-from-where structure Similar to SQL and uses a select-where structure Not similar to SQL Similar to SQL and uses a from-where structure Similar to SQL and uses a select-from-where structure Similar to SQL and uses a select-where structure Not similar to SQL ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database The object definition language (ODL) is which of the following? A data definition language for OODB A method to implement a logical schema All of these Used to develop logical schemas A data definition language for OODB A method to implement a logical schema All of these Used to develop logical schemas ANSWER DOWNLOAD EXAMIANS APP
Object Oriented Database ODL supports which of the following types of association relationships? Unary and Binary Unary and Binary and Ternary Unary Unary and Binary and Ternary and higher Unary and Binary Unary and Binary and Ternary Unary Unary and Binary and Ternary and higher ANSWER DOWNLOAD EXAMIANS APP
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