Introduction to Database System A candidate key is a determinant that determines all the other columns is a relation. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file refers to how closely the files fits into the allocated is a measure of the percentage of existing records updated during a run is a low percentages of number of records added or deleted from a file None of these if high, reduces processing efficiency for sequential and nonsequential files refers to how closely the files fits into the allocated is a measure of the percentage of existing records updated during a run is a low percentages of number of records added or deleted from a file None of these if high, reduces processing efficiency for sequential and nonsequential files ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the rows are sometimes called "fields". True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not an advantage of the data-base approach? All of these increased security ability to associate related data elimination of the data redundancy program/data independence All of these increased security ability to associate related data elimination of the data redundancy program/data independence ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data security threats include hardware failure all of the listed here privacy invasion fraudulent manipulation of data hardware failure all of the listed here privacy invasion fraudulent manipulation of data ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A logical schema is the entire database is a standard way of organizing information into accessible parts None of these All of these describes how data is actually stored on disk is the entire database is a standard way of organizing information into accessible parts None of these All of these describes how data is actually stored on disk ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS