View the Exhibit and examine the data in the PRODUCT_INFORMATION table. There are some products listed in the PRODUCT_INFORMATION table that have no value in the LIST_PRICE column. You issued the following SQL statement to find out the PRODUCT_NAME for these products:
SELECT product_name, list_price
FROM product_information
WHERE list_price = NULL;
The query returns no rows. What changes would you make in the statement to get the desired result?
A. Change the WHERE clause to WHERE list_price = 0
B. Change the WHERE clause to WHERE list_price = ”.
C. Change the WHERE clause to WHERE list_price IS NULL.
D. In the WHERE clause, enclose NULL within single quotation marks.
E. In the WHERE clause, enclose NULL within double quotation marks.
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