Introduction to Database System Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity? Supertype entity Subtype entity Archetype entity Instance entity Supertype entity Subtype entity Archetype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attributes A and B determine attribute C, then it is also true that: C is a determinant. B → A → (A,B) is a composite determinant. C is a determinant. B → A → (A,B) is a composite determinant. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to changes data in a table? UPDATE INSERT BROWSE APPEND UPDATE INSERT BROWSE APPEND ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is true of a network structure? It is a physical representation of the data It allows a many-to-many relationship It will be the dominant data base of the future It is conceptually simple It is a physical representation of the data It allows a many-to-many relationship It will be the dominant data base of the future It is conceptually simple ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The main idea behind computer files is that it is convenient to arrange them store information together access them create them arrange them store information together access them create them ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A functional dependency is a relationship between or among attributes. False True False True ANSWER DOWNLOAD EXAMIANS APP
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