(a) What is a Database ? What is a DBMS ? What are its advantages and…

Question

(a) What is a Database ? What is a DBMS ? What are its advantages and limitations ?

(b) Find the essential attributes and calculate candidate key for relation R with attributes (I, J, K, L, M) and functional dependencies (IJ -> KL; L -> I; JK -> LM). Also find (KLM)+.

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