what do you mean by decomposition and dependencies preservation explain?
Answers
Answered by
0
Explanation:
Decomposition of a relation is done when a relation in relational model is not in appropriate normal form. Relation R is decomposed into two or more relations if decomposition is lossless join as well as dependency preserving.
mark as brainliest....
Answered by
1
Answer:
plzz mark it as brainliest
Explanation:
The dependency preservation decomposition is another property of decomposed relational database schema D in which each functional dependency X -> Y specified in F either appeared directly in one of the relation schemas Ri in the decomposed D or could be inferred from the dependencies that appear in some Ri
Similar questions