Question

我有一个带有订单的mySQL表。每个表行包括订单日期，金额和销售人员

 order_id   | 
 amount     |  
 saleman_id | 
 order_date

我想查询它，这样我就可以生成一个带有报告的HTML表格。

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

这已经部分有效了，这意味着我有一个查询，允许我创建一个报告，显示所有销售人员每个月的总数，但我想知道是否有办法实现我想要的在单个SQL查询中，如果值得，那么性能就可以了。否则，我可以在PHP while循环中查询每个销售人员的结果，该循环生成我已经拥有的表。

Mu当前查询是：

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;

我使用PHP 5.4和经典的mysql模块＆amp; mySQL5.5

Answer 1

您可以使用with rollup执行所需操作：

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;

但是，由于汇总的性质，我建议在group by中结合年份和月份：

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;

这将仅列出个别月份的摘要行，而不是年度和月份的摘要。

Answer 2

如果没有看到您的show create table，很难给出确切的查询。 Genarelly speeking我喜欢在SQL中完成所有工作而不是PHP。但是，如果您有一个数据网格，并且想要显示小计或总计，那么请使用PHP来添加行。

无论如何，这里有一些可以帮助你的查询

此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

让数据库做到全部，擅长。（并填补PHP的空白时，保存所有额外的数据库访问。）

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;

如果真的不提供年度总数，需要调整。

计算每个销售员每月的总数

3 个答案: