The SQL DESC keyword specifies a descending sort order for a column within in ORDER BY clause. Values are sorted in Z to A order.

Example using DESC

The following statement sorts each Person LastName in descending order. Since noting is specified for FirstName, they are sorted in ascending order within LastName.

SELECT LastName, FirstName, EmailPromotion FROM Person.Person ORDER BY LastName Desc, FirstName
/* Answer */
SELECT Last, First, EmailPromotion
FROM Person.Person
ORDER BY Last Desc, First

Other Resources to Learn DESC

If you want to learn more about sorting and the ORDER BY clause, I would recommend reading the following articles:

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}