2015年7月6日
sql_1
摘要： order bySELECT Company, OrderNumber FROM Orders ORDER BY Company DESC;SELECT Company, OrderNumber FROM Orders ORDER BY Company DESC, OrderNumber ASC;i... 阅读全文
posted @ 2015-07-06 23:33 ~清风煮酒~ 阅读(268) 评论(0) 推荐(0) 编辑