对数据进行排序

1SELECT DISTINCT SalesPerson
2FROM SalesData

报告 1：销售人员列表

按降序排列

1SELECT column1, column2, ...
2FROM table_name
3ORDER BY column1, column2, ... ASC|DESC

1SELECT DISTINCT SalesPerson, SalesAmount 
2FROM SalesData 
3ORDER BY SalesAmount DESC

1SELECT * FROM SalesData
2LIMIT 5

-- 在此处编写你的查询语句。