Introduction to Database System A primary key is a composite key that was selected to be the main identifier for the relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system dividing documents to be entered into batches None of these All of these controlling the input of each input clerk comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system dividing documents to be entered into batches None of these All of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In any hierarchy of data organization, the smallest entity to be processed as a single unit is called data field None of these data record database data file data field None of these data record database data file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If attributes A and B determine attribute C, then it is also true that: A → B → (A,B) is a composite determinant. C is a determinant. A → B → (A,B) is a composite determinant. C is a determinant. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An Enterprise Resource Planning application is an example of a(n) ________ . data mining database application single-user database application e-commerce database application multiuser database application data mining database application single-user database application e-commerce database application multiuser database application ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a large DBMS each user can "see" only a small part of the entire database all of the listed here each subschema contains every field in the logical schema each user can access every sub¬schema each user can "see" only a small part of the entire database all of the listed here each subschema contains every field in the logical schema each user can access every sub¬schema ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS