T-SQL 資料排序

SELECT DISTINCT UnitPrice as abc , SupplierID as def , ProductID as ghi
FROM Products
ORDER BY UnitPrice DESC
DISTINCT:將重覆的除去
AS:將欄位命名為
ORDER BY 依序排列 DESC=降幕 沒打就是升幕ASC
以上會以abc先排再來比較def或ghi