Which query is used to list a unique value for V_CODE, where the list will produce only a list of those values that are different from one another?
a. SELECT ONLY V_CODE
FROM PRODUCT;
b. SELECT UNIQUE V_CODE
FROM PRODUCT;
c. SELECT DIFFERENT V_CODE
FROM PRODUCT;
d. SELECT DISTINCT V_CODE
FROM PRODUCT;
Answer: a. SELECT ONLY V_CODE
FROM PRODUCT;
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