SQL select by desc

Question

这里是我的sql查询我只是想要我的salePrice从销售表中降序 需要帮助提前致谢。

例如

SELECT salesMan.salesmanID, salesMan.name, SUM(sale.sellingPrice) 
FROM salesMan 
INNER JOIN sale ON salesMan.salesmanID = sale.salesManID 
GROUP BY salesmanID, name; 

Answer 1

然后加：

order by SUM(sale.sellingPrice) desc 

Answer 2

别名添加到SUM列，并用它来订购您的结果集。

Select salesMan.salesmanID,salesMan.name, SUM(sale.sellingPrice) as sellingPriceSum 
FROM salesMan INNER JOIN 
    sale 
    ON salesMan.salesmanID = sale.salesManID 
GROUP BY salesmanID,name 
ORDER BY sellingPriceSum desc; 

Answer 3

这应该工作：

Select salesMan.salesmanID, salesMan.name, SUM(sale.sellingPrice) AS totalSale 
FROM salesMan INNER JOIN 
    sale 
    ON salesMan.salesmanID = sale.salesManID 
GROUP BY salesmanID, name 
ORDER BY totalSale DESC; 

可以简化像这样的查询：

SELECT sm.salesmanID, sm.name, SUM(s.sellingPrice) AS totalSale 
FROM salesMan sm 
INNER JOIN sale s ON sm.salesmanID = s.salesManID 
GROUP BY sm.salesmanID, sm.name 
ORDER BY totalSale DESC;