Consider the following relational schema: Suppliers(sid:integer, sname:string,…
GATE · 2009 · CS
Consider the following relational schema:
Suppliers(sid:integer, sname:string, city:string, street:string)
Parts(pid:integer, pname:string, color:string)
Catalog(sid:integer, pid:integer, cost:real)
Assume that, in the suppliers relation above, each supplier and each street within a city has a unique name, and (sname, city) forms a candidate key. No other functional dependencies are implied other than those implied by primary and candidate keys. Which one of the following is TRUE about the above schema?
- A.
The schema is in BCNF
- B.
The schema is in 3NF but not in BCNF
- C.
The schema is in 2NF but not in 3NF
- D.
The schema is not in 2NF
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