每个推销员每月的总数

Question

我有一个带有订单的mySQL表。 每个表格行均包含订单日期，金额和销售人员

 order_id   | 
 amount     |  
 saleman_id | 
 order_date

我想对其进行查询，以便可以生成带有此报告的HTML表。

 Year | Month | Total | Total for salesman 1 | Total for salesman 2 | etc...
 2014 | 10    | 5000  | 2000                 | 3000                 | etc...
 2014 | 11    | 6000  | 5000                 | 1000                 | etc...

这已经部分起作用了，这意味着我有一个查询，可以让我创建一个报告，显示所有推销员每个月的总数，但是我想知道是否有一种方法可以在单个SQL查询中实现我想要的如果值得的话，还可以提高性能。 否则，我只能在PHP while循环中查询每个推销员的结果，该结果会生成我已经拥有的表。

当前查询亩为：

SELECT 
YEAR(ord_date) AS year, 
MONTH(ord_date) AS month,  
ROUND(SUM(...colum calculations...),2) AS sales, 
COUNT(o.ord_id) AS count_orders 
FROM 
orders_ord AS o 
GROUP BY 
year, month
ORDER BY year DESC, month DESC;

我正在将PHP 5.4与经典的mysql模块和mySQL5.5一起使用

Answer 1

您可以使用with rollup ：

SELECT YEAR(ord_date) AS year, MONTH(ord_date) AS month, repid, MONTHNAME(ord_date) AS monthname, 
       ROUND(SUM(...colum calculations...),2) AS profit,
       ROUND(SUM(...colum calculations...),2) AS sales, 
       COUNT(o.ord_id) AS count 
FROM orders_ord  o 
GROUP BY year, month
ORDER BY year DESC, month desc, repid with rollup;

然而，由于累积的性质，我会建议的年份和月份结合在group by ：

SELECT YEAR(ord_date) AS year, MONTH(ord_date) AS month, repid, MONTHNAME(ord_date) AS monthname, 
       ROUND(SUM(...colum calculations...),2) AS profit,
       ROUND(SUM(...colum calculations...),2) AS sales, 
       COUNT(o.ord_id) AS count 
FROM orders_ord  o 
GROUP BY YEAR(ord_date) * 100 + MONTH(ord_date) desc, repid with rollup;

这将只放置各个月份的摘要行，而不是年份和月份的摘要行。

Answer 2

没有看到您的节目创建表，很难给您确切的查询。 通俗地说，我喜欢用SQL而不是PHP来完成所有工作。 但是，如果您有一个数据网格，并且想要显示小计或总计，则可以使用PHP来添加行。

无论如何，这是一些可以帮助您的查询

该查询将为您提供四舍五入的利润和四舍五入的销售额

SELECT 
rep_id,
YEAR(ord_date) AS year, 
MONTH(ord_date) AS month,  
MONTHNAME(ord_date) AS monthname, 
ROUND(SUM(...colum calculations...),2) AS profit,
ROUND(SUM(...colum calculations...),2) AS sales, 
COUNT(o.ord_id) AS count 
FROM 
orders_ord AS o 
GROUP BY rep_id, year, month
ORDER BY year DESC, month DESC;

Answer 3

让数据库完成所有工作，这是您擅长的。 （并填补PHP的空白时，将所有其他行程保存到数据库中。）

SELECT 
YEAR(ord_date) AS year, 
MONTH(ord_date) AS month,  
MONTHNAME(ord_date) AS monthname, 
saleman_id,
ROUND(SUM(...colum calculations...),2) AS profit,
ROUND(SUM(...colum calculations...),2) AS sales, 
COUNT(o.ord_id) AS count 
FROM 
orders_ord 
GROUP BY  year, month, saleman_id

UNION ALL

SELECT 
YEAR(ord_date) AS year, 
MONTH(ord_date) AS month,  
MONTHNAME(ord_date) AS monthname,
'zzz Total zzz', 
ROUND(SUM(...colum calculations...),2) AS profit,
ROUND(SUM(...colum calculations...),2) AS sales, 
COUNT(o.ord_id) AS count 
FROM 
orders_ord 
GROUP BY  year, month
ORDER BY year DESC, month DESC;

如果真的没有提供年份总计，请进行调整。