Introduction to Database System The data-base environment has all of the following components except: None of these users data base data-base administrator separate files None of these users data base data-base administrator separate files 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 A key is a group of one or more attributes that uniquely identifies a row. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In a relation, the order of the columns does not matter. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A form defines none of the listed here the width of each field both of the listed here where data is placed on the screen none of the listed here the width of each field both of the listed here where data is placed on the screen ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is not a restriction for a table to be a relation? All of the entries in any column must be of the same kind. No two rows in a table may be identical. The cells of the table must contain a single value. The columns must be ordered. All of the entries in any column must be of the same kind. No two rows in a table may be identical. The cells of the table must contain a single value. The columns must be ordered. ANSWER DOWNLOAD EXAMIANS APP