我有一张表product
:
proID Proname sellprice qty_istock qty_outstock remark
001 fish 20,000 5 20 Paid
002 tofu 5,000 2 32 paid
003 desert 10,000 10 50 paid
004 Salad 30,000 9 5 paid
005 wisky 12,000 100 2 paid
006 sprite 5,000 200 40 paid
我的代码如下所示:
SELECT *
FROM
(
SELECT *, DENSE_RANK() OVER (ORDER BY qty_outstock DESC) dr
FROM product
) t
WHERE dr <= 3;
此代码返回前三个热门产品,如:
PID qty_outstock
003 50
006 40
002 32
现在我需要改为三分钟。
PID qty_outstock
005 2
004 5
001 20
My Question:
如何更改它以从表中获得三分钟或三分不受欢迎的销售产品?
答案 0 :(得分:0)
ORDER BY
中的OVER
将确定DENSE_RANK
如何生成排名。
因此,如果您希望按最低限度排序,只需ORDER BY qty_outstock ASC
。
SELECT *
FROM
(
SELECT *, DENSE_RANK() OVER (ORDER BY qty_outstock ASC) dr
FROM product
) t
WHERE dr <= 3;