Introduction to Database System Which type of entity represents an actual occurrence of an associated generalized entity? Archetype entity Subtype entity Supertype entity Instance entity Archetype entity Subtype entity Supertype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data encryption techniques are particularly useful for reducing storage space requirements improving data integrity All of these None of these protecting data in data communication systems reducing storage space requirements improving data integrity All of these None of these protecting data in data communication systems 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 file data field None of these database data record data file data field None of these database data record ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, GRANT command is used to grant system privileges, roles, and object privileges to uses and roles allow user to create databases None of the listed here allow user to access databases grant system privileges, roles, and object privileges to uses and roles allow user to create databases None of the listed here allow user to access databases ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System In SQL, which command(s) is(are) used to enable/disable a database trigger? CHANGE USER ALTER TRIGGER All of the listed here MODIFY USER CHANGE USER ALTER TRIGGER All of the listed here MODIFY USER ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An audit trail All of the listed here is used to make back-up copies is the recorded history of operations performed on a file can be used to restore lost information All of the listed here is used to make back-up copies is the recorded history of operations performed on a file can be used to restore lost information ANSWER DOWNLOAD EXAMIANS APP
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