got this table from a website and trying to normalized it into 3nf but not sure if it is or not.
there is a transitive dependency from date till tutemail.
based on my practice i made these changes to normalize it.
tbl 1 :unit id,std id, topic, grade.
tbl 2 :tutid,tutemail.
tbl 3 :unitid, book
tbl 4:Date,room
could anyone please guide me whethwe it is correct or not,