Introduction to Database System Which of the following is a serious problem of file management systems? data redundancy program dependence difficult to update All of these lack of data independence data redundancy program dependence difficult to update All of these lack of data independence ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to add a column/integrity constraint to a table ALTER TABLE MODIFY TABLE ADD COLUMN INSERT COLUMN ALTER TABLE MODIFY TABLE ADD COLUMN INSERT COLUMN ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A logical schema describes how data is actually stored on disk All of these is a standard way of organizing information into accessible parts None of these is the entire database describes how data is actually stored on disk All of these is a standard way of organizing information into accessible parts None of these is the entire database ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System With respect to data input, the most accurate description of batch control is comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these controlling the input of each input clerk All of these dividing documents to be entered into batches comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system None of these controlling the input of each input clerk All of these dividing documents to be entered into batches ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command is used to select only one copy of each set of duplicable rows SELECT DIFFERENT SELECT DISTINCT All of these SELECT UNIQUE None of these SELECT DIFFERENT SELECT DISTINCT All of these SELECT UNIQUE None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Sophisticated report generators can All of the listed here selectively retrieve and print portions of a list perform arithmetic operations print row-oriented reports All of the listed here selectively retrieve and print portions of a list perform arithmetic operations print row-oriented reports ANSWER DOWNLOAD EXAMIANS APP
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