Introduction to Database System An attribute is a(n): column of a table. row of a table. key of a table. two dimensional table. column of a table. row of a table. key of a table. two dimensional table. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Given the functional dependency R → S , R is called the determinant. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Prior to 1970, all data was stored in separate files, which were mostly stored on reels of magnetic tape. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The physical location of a record is determined by a mathematical formula that transforms a file key into a record location in a sequential file a tree file an indexed file None of these a hashed file a sequential file a tree file an indexed file None of these a hashed file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Two files may be joined into a third file if they have a row in common both (b) and (c) they have no records with the same value in the common field None of these they have a field in common they have a row in common both (b) and (c) they have no records with the same value in the common field None of these they have a field in common ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to enable/disable a database trigger? All of the listed here ALTER TRIGGER CHANGE USER MODIFY USER All of the listed here ALTER TRIGGER CHANGE USER MODIFY USER ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS