Describe the following terms In the context of the relational data model,:

(i) relation 

(ii) primary key 

(iii) foreign key 

(iv) null                                                                                                               

Question 2

Normalization

(a) Explain the following data dependency terms and give examples from the student relation below:

(i) Functional dependency 

(ii) Full functional dependency 

(iii) Partial functional dependency 

(iv) Transitive dependency