10 A teacher has set up a database for a class library. The data about the books in the class library
will be entered by the teacher.
(a) The data can be verified by double data entry or visual verification.
Compare double data entry with visual verification. Your answer must include similarities and
differences.
[4]
(b) When data is entered into a date field it is validated. An example of the data that could be
entered is 01/04/2023
State two validation checks that could be used on this data.
1
2
[2]