Normalize the following schema, with given constraints, to 4NF. books(accessionno, isbn, title, author, publisher) users(userid, name, deptid, deptname) accessionno → isbn isbn → title isbn →...

Normalize the following schema, with given constraints, to 4NF.

books(accessionno, isbn, title, author, publisher)

users(userid, name, deptid, deptname)

accessionno → isbn

isbn → title

isbn → publisher

isbn →→ author

userid → name

userid → deptid

deptid → deptname