Which statement adds a constraint that ensures the CUSTOMER_NAME column of the CUSTOMERS table holds a value?

Question

Options

• AALTER TABLE customers ADD CONSTRAINT cust_name_nn CHECK customer_name IS NOT
• BALTER TABLE customers MODIFY CONSTRAINT cust_name_nn CHECK customer_name IS
• CALTER TABLE customers MODIFY customer_name CONSTRAINT cust_name_nn NOT NULL;
• DALTER TABLE customers MODIFY customer_name CONSTRAINT cust_name_nn IS NOT NULL;
• EALTER TABLE customers MODIFY name CONSTRAINT cust_name_nn NOT NULL;
• FALTER TABLE customers ADD CONSTRAINT cust_name_nn CHECK customer_name NOT

• A
  3% (1)
• B
  11% (4)
• C
  74% (26)
• E
  9% (3)
• F
  3% (1)

No community discussion yet for this question.