Introduction to Database System Two files may be joined into a third file if they have a field in common both (b) and (c) None of these they have a row in common they have no records with the same value in the common field they have a field in common both (b) and (c) None of these they have a row in common they have no records with the same value in the common field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a group of one or more attributes that uniquely identifies a row? Relation Key Tuple Determinant Relation Key Tuple Determinant ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The only reason for the existence of relations is to store instances of functional dependencies. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Periodically adding, changing and deleting file records is called file upgrading Updating restructuring renewing upgrading Updating restructuring renewing 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. Database Records Fields File structure Database Records Fields File structure ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity. False True False True ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS