What is TRUE about the BCNF ?a.A single-valued attribute can only be stored in it.b.If a relation contains an atomic value, it will be BCNF.c.All of the aboved.A table attribute cannot contain more than one value, according to this rule.

The correct answer is b. If a relation contains an atomic value, it will be BCNF.

BCNF, or Boyce-Codd Normal Form, is a level of database normalization that ensures certain dependencies among data in a table. The main goal of BCNF is to reduce redundancy in data.

a. A single-valued attribute can be stored in any form, not just BCNF.

b. This is true. BCNF requires that for every non-trivial functional dependency X -> Y, X must be a superkey. This means that if a relation contains an atomic value (a value that cannot be divided), it will be in BCNF.

c. As explained above, not all of the statements are true.

d. This is not necessarily true. A table attribute can contain more than one value, but it would not be in 1NF (First Normal Form), let alone BCNF. BCNF is a stricter form of 3NF (Third Normal Form).

The correct answer is b. If a relation contains an atomic value, it will be BCNF.

BCNF, or Boyce-Codd Normal Form, is a level of database normalization that ensures certain dependencies among data in a table. The main goal of BCNF is to reduce redundancy in data.

a. A single-valued attribute can be stored in any form, not just BCNF.

c. All of the above is not correct because not all statements are true.

d. A table attribute can contain more than one value, according to this rule. BCNF does not limit the number of values an attribute can have. It only ensures that there are no non-trivial functional dependencies of attributes on something other than a superset of a candidate key.