Question

您好所有人都会根据日期对销售进行分组来显示每个月的销售情况但是我想在每个月的销量旁边展示一下。我尝试了以下查询，它将只返回销售。但没有几个月。

SELECT 
CASE 
    WHEN created_at BETWEEN "2012-01-01" and "2012-01-31" THEN "Jan"
    WHEN created_at BETWEEN "2012-02-01" and "2012-02-28" THEN "Feb"
    WHEN created_at BETWEEN "2012-03-01" and "2012-03-31" THEN "Mar"
    WHEN created_at BETWEEN "2012-04-01" and "2012-04-30" THEN "April"
    WHEN created_at BETWEEN "2012-05-01" and "2012-05-31" THEN "May" 
    WHEN created_at BETWEEN "2012-06-01" and "2012-06-30" THEN "June"
    WHEN created_at BETWEEN "2012-07-01" and "2012-07-31" THEN "July"
    WHEN created_at BETWEEN "2012-08-01" and "2012-08-31" THEN "Aug"
    WHEN created_at BETWEEN "2012-09-01" and "2012-09-30" THEN "Sep"
    WHEN created_at BETWEEN "2012-10-01" and "2012-10-31" THEN "Oct"
    WHEN created_at BETWEEN "2012-11-01" and "2012-11-30" THEN "Nov"
    ELSE "Dec" 
END AS "month" , SUM(grand_total) AS total
FROM sales
WHERE created_at >="2012-01-01" AND created_at <="2013-01-01"
GROUP BY TIMESTAMPDIFF(MONTH, "2012-01-01" + INTERVAL 1 DAY, created_at)

如何在销售旁边显示月份，如下所示。

+------+-------+
| Month| Total |
+------+-------+
| Jan  |  1200 |
| Feb  |  5555 |
| Mar  |  1235 | 
| Apr  |  1299 | 
+------+-------+

提前致谢。

Answer 1

试试这个：

SELECT MONTHNAME(created_at) AS month , SUM(grand_total) AS total
FROM sales
WHERE created_at BETWEEN '2012-01-01' AND '2013-01-01'
GROUP BY MONTHNAME(created_at)

Answer 2

使用group by和monthname()：

SELECT monthname(created_at), SUM(grand_total) AS total
FROM sales
WHERE created_at >= '2012-01-01' AND created_at < '2013-01-01'
GROUP BY monthname(created_at)
order by month(created_at);

按月分组并每月显示相应的值

2 个答案: