Introduction to Database System Given the functional dependency R → S , R is called the determinant. True False True False ANSWER DOWNLOAD EXAMIANS APP
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? Instance entity Archetype entity Subtype entity Supertype entity Instance entity Archetype entity Subtype entity Supertype entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An operation that will increase the length of a list is Insert Look-up All of the listed here Modify Insert Look-up All of the listed here Modify ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A data dictionary is a special file that contains the names of all fields in all files the widths of all fields in all files the data types of all fields in all files None of these All of these the names of all fields in all files the widths of all fields in all files the data types of all fields in all files None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A computer file contains several records. What does each record contain? Fields Database Words Bytes Fields Database Words Bytes ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following is a single-entity instance of one type related to many entity instances of another type? Many-to-Many Relationship Composite Relationship One-to-One Relationship One-to-Many Relationship Many-to-Many Relationship Composite Relationship One-to-One Relationship One-to-Many Relationship ANSWER DOWNLOAD EXAMIANS APP
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