Help Me/Question What Are The Types Of Functional Dependencies?

Doominic anderson

White Belt
Functional dependencies specifies the constraints between two sets of attributes in a relation denoted by X->Y.
Where X and Y are attributes that are subset of relations(R). that specifies the constraints on the possible tuples that can form a relation.
What are the types of functional dependencies and their use in DBMS?
 

steve taylor

White Belt
There are five types of functional dependency are there in relational database management system that are listed below.
  1. trivial functional dependency
  2. semi non trivial functional dependency
  3. non trivial functional dependency
  4. multi-valued functional dependency
  5. transitive functional dependency
  6. and the partial functional dependency
Dependency helps to find related data in the database there are connection exist between all the columns to find out all the attributes Value.
 
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