Compute the closure of the following set F of functional dependencies for relation schema
R = (A, B, C, D, E).
A → BC
CD → E
B → D
E → A
List the candidate keys for R
To compute the closure of a set of functional dependencies for a given relation schema and to find the candidate keys for that schema, we need to perform a series of steps. Let's start by calculating the closure of the given set of functional dependencies F for the relation schema R = (A, B, C, D, E).
Given Functional Dependencies:
- A → BC
- CD → E
- B → D
- E → A
Step 1: Start with the given functional dependencies
Closure of A: A+ Closure of B: B+ Closure of C: C+ Closure of D: D+ Closure of E: E+
Step 2: Apply Armstrong's transitivity rule
For each functional dependency X ___ ______ __________ __________ ________.
_________ __________ ______ ______ ________ _______ ___ ______ __________ ____.
_______ ____ _________ ____ __________ __________ ___ _______ _____.
____ _________ ____ __________ ______ ____ ____.
__________ _________ _______ ______ ______ ______ ______ ___ ________ __________.
_________ ___ _____ _____ __________ __________ ______ ______ ___ _____.
______ ____ ___ ____ _______ ___ _________ _______ _________ _________ _________.
______ _____ ______ _______ ________ ______ _____.
_____ ________ ______ ________ ____.
_______ ___ _______ ________ _______ _________ _____ _________ ___.
___ _______ __________ ________ ________ ______ _________ ___ ______ _______ _______ ______.
______ __________ _________ __________ ______ _______ _________ _________.
_____ ____ ____ __________ __________ ________ ________ _______ _________ _________ ____.
_________ ____ _________ ____ ____ ______ _________ ________ ______ ___.
__________ _____ ____ _______ ________ ____ ____ _____ __________ _______ ___.
__________ _________ ________ ______ _____ ___ _________ _______.
________ _______ ______ ________ _______.
___ __________ _______ __________ ________ ___ ______ _________ _________.
____ _______ ________ ______ _______.
________ _____ _____ __________ _________ ____ _________ __________ ____ _________ _________ ________.
___ ____ _____ ___ _______.
________ __________ ___ __________ ____ __________.
______ ____ __________ _____ _______ _________ ___ ____ ____ ____ _________ ___.
______ __________ _________ ______ __________ _________ __________ ________.
___ ________ _____ ____ _________ _____ _________ ____.
_________ __________ ______ _______ ______ _______ ___ ____ ____ _________.
________ ____ ___ __________ _________.
______ _____ ________ ______ _______ _____ _______ ___.
______ ___ _____ ___ _______.
________ __________ ______ ____ __________.
_______ ________ ________ _______ _____ _________ _________.
______ ___ _______ __________ ______ ____ _________ _____ _____ ______ __________ ________.
______ _______ ________ ______ _______ ________ _______ ________ _______ _________ _________ ___.
________ ______ ______ ______ ________ _________ ____ ____ ___ _____ _______.
___ __________ ___ ___ __________ ________ ___ _______ __________.
____ _______ ___ _______ ______ ________ ______ ____.
_________ ______ ___ _________ ______.
_________ ________ ____ _____ ____.
_______ ___ _____ __________ ____ ____ __________ ____ ___.
________ ________ ____ _________ ________.
__________ ____ _______ ____ __________ _________ ____ ________ _________ __________ ________.
Get Full Answer on WhatsApp