Youre creating a new table consisting of three columns: Col1, Col2, and Col3. Col1 should be the

Question:

You’re creating a new table consisting of three columns: Col1, Col2, and Col3. Col1 should be the primary key and can’t have any NULL values, and each entry should be unique. Col3 must not contain any NULL values either. How many total constraints do you have to create?
a. 1
b. 2
c. 3
d. 4