NVQ level 5 ICT Database Management Systems 1 Final Examination (MCQ) Page 3

NVQ level 5 ICT Database Management Systems 1 Final Examination (MCQ)

NVQ 5 ICT Database Management Systems  (MCQ) set 3

Select which statement indicate about NULL is

Select one:

a. the same as 0 for integer

b. the same as 0 for integer and blank for character

c. the same as blank for character

d. not a value

A set of possible data values is called

Select one:

a. attribute

b. tuple

c. domain

d. degree

Minimal super key is the

Select one:

a. Primary key

b. Foreign key

c. Golden key

d. Composite key

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