Introduction to Database System The degree of a relationship refers to the number of entity classes in the relationship. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A scheme describes All of these data elements None of these record relationships records and files All of these data elements None of these record relationships records and files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In which of the following is a single-entity instance of one type of related to a single-entity instance 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
Introduction to Database System An audit trail is used to make back-up copies is the recorded history of operations performed on a file All of the listed here can be used to restore lost information is used to make back-up copies is the recorded history of operations performed on a file All of the listed here can be used to restore lost information ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A number of related records that are treated as a unit is called batch data file field batch data file field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A ____ Contains the smallest unit of meaningful data, so you might call it the basic building block for a data file. Fields File structure Records Database Fields File structure Records Database ANSWER DOWNLOAD EXAMIANS APP
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