Write a SELECT statement that returns these two columns:
Category Name The Category Name column from the Categories table
Product ID The Product ID column from the Products table
Return one row for each category that has never been used.
Hint: Use an outer join and only return rows where the Product ID column contains a null value.

In researching his history report about the civil war, why is ariq most likely to use secondary data than primary data? secondary data provides a starting point to find primary data. secondary data is easier and less time consuming to find. secondary data is always more reliable and credible. secondary data eliminates the need for other research.