Is "the degree of the table" a database concept? You should provide a definition. In mathematics, this is not a universally accepted concept.
How do you figure the degree of the table?
Let A_i, 1 ≤ i ≤ 5, be the domains for a table D ⊆ A_1 x A_2 x A_3 x A_4 x A_5, where A_1 = {U, V, W, X, Y, Z} (used as code names for different cereals in a test), and A_2 = A_3= A_4 = A_5 = Z^+.
Table D:
Code Name of Cereal Grams of Sugar per 1-oz Serving % of RDA^a of Vitamin A per 1-oz Serving % of RDA Vitamin C per 1-oz Serving % of RDA of Protein per 1-oz Serving U 1 25 25 6 V 7 25 2 4 W 12 25 2 4 X 0 60 40 20 Y 3 25 40 10 Z 2 25 40 10