Explain what the RIGHT JOIN operation in SQL means and how it works.

The RIGHT JOIN operation in SQL is used to combine two tables such that the result includes all rows from the right table and the matching rows from the left table. If there are no matching records in the left table, the result set will contain NULL values for those fields.

Example:

SELECT A.id, A.name, B.order_date
FROM Customers A
RIGHT JOIN Orders B ON A.id = B.customer_id;

This example will show all orders, even if there is no corresponding customer for some orders. For such orders, the fields from Customers will be NULL.