Introduction to Database System The main idea behind computer files is that it is convenient to arrange them create them access them store information together arrange them create them access them store information together ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An entity class is a collection of entities and is described by the structure of the entities in that class. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator? Instance entity Supertype entity Archetype entity Subtype entity Instance entity Supertype entity Archetype entity Subtype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if None of these they have a row in common both (b) and (c) they have a field in common they have no records with the same value in the common field None of these they have a row in common both (b) and (c) they have a field in common they have no records with the same value in the common field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The model for a _____ resembles the hierarchical model in many respects. Hierarchical database Distributed database None of these Network database Relational database Hierarchical database Distributed database None of these Network database Relational database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An application where only one user accesses the database at a given time is an example of a(n) ________ . multiuser database application e-commerce database application data mining database application single-user database application multiuser database application e-commerce database application data mining database application single-user database application ANSWER DOWNLOAD EXAMIANS APP
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