Which normal form does this table violate?

Question

Consider this table:

   +-------+-------+-------+-------+  
   | name  |hobby1 |hobby2 |hobby3 |  
   +-------+-------+-------+-------+   
   | kris  | ball           


        

Answer 1

Without knowing what keys exist and what dependencies the table is supposed to satisfy it's impossible to determine for sure what Normal Form it satisfies. All we can do is make guesses based on your attribute names.

Does the table have a key? Suppose for the sake of example that Name is a candidate key. If there is exactly one value permitted for each of the other attributes for each tuple (which means that no attribute can be null) then the table is in at least First Normal Form.