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
WHERE list_price = NULL;
The query returns no rows.
What changes would you make in the statement to get the desired result?
Change the WHERE clause to WHERE list_price = 0
Change the WHERE clause to WHERE list_price = ‘ ‘.
Change the WHERE clause to WHERE list_price IS NULL.
In the WHERE clause, enclose NULL within single quotation marks.
In the WHERE clause, enclose NULL within double quotation marks.