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.
tell me answer of this question
Answer is: C