Introduction to Database System The different classes of relations created by the technique for preventing modification anomalies are called: referential integrity constraints. normal forms. functional dependencies. None of these referential integrity constraints. normal forms. functional dependencies. None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System If the record management system allows you to edit values before they are recorded on disk, you can change the width of a field correct spelling changes before they are recorded All of the listed here change the name of a field change the width of a field correct spelling changes before they are recorded All of the listed here change the name of a field ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Periodically adding, changing and deleting file records is called file renewing restructuring upgrading Updating renewing restructuring upgrading Updating ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to enable/disable all triggers on a table? ALTER TABLE ALTER TRIGGERS All of the listed here MODIFY TRIGGERS IN TABLE ALTER TABLE ALTER TRIGGERS All of the listed here MODIFY TRIGGERS IN TABLE ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a serious problem of file management systems? All of these program dependence difficult to update data redundancy lack of data independence All of these program dependence difficult to update data redundancy lack of data independence ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System The activity of a file None of these refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files is a low percentages of number of records added or deleted from a file is a measure of the percentage of existing records updated during a run None of these refers to how closely the files fits into the allocated if high, reduces processing efficiency for sequential and nonsequential files is a low percentages of number of records added or deleted from a file is a measure of the percentage of existing records updated during a run ANSWER DOWNLOAD EXAMIANS APP
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