用SQL语句写代码,写出每个用户1-12月的销售额,比较用户哪个月份最大的销售额最高
时间: 2024-03-01 07:55:28 浏览: 33
好的,以下是我给出的 SQL 代码:
```
SELECT user_id,
SUM(CASE WHEN MONTH(sale_date) = 1 THEN sale_amount ELSE 0 END) AS jan_sales,
SUM(CASE WHEN MONTH(sale_date) = 2 THEN sale_amount ELSE 0 END) AS feb_sales,
SUM(CASE WHEN MONTH(sale_date) = 3 THEN sale_amount ELSE 0 END) AS mar_sales,
SUM(CASE WHEN MONTH(sale_date) = 4 THEN sale_amount ELSE 0 END) AS apr_sales,
SUM(CASE WHEN MONTH(sale_date) = 5 THEN sale_amount ELSE 0 END) AS may_sales,
SUM(CASE WHEN MONTH(sale_date) = 6 THEN sale_amount ELSE 0 END) AS jun_sales,
SUM(CASE WHEN MONTH(sale_date) = 7 THEN sale_amount ELSE 0 END) AS jul_sales,
SUM(CASE WHEN MONTH(sale_date) = 8 THEN sale_amount ELSE 0 END) AS aug_sales,
SUM(CASE WHEN MONTH(sale_date) = 9 THEN sale_amount ELSE 0 END) AS sep_sales,
SUM(CASE WHEN MONTH(sale_date) = 10 THEN sale_amount ELSE 0 END) AS oct_sales,
SUM(CASE WHEN MONTH(sale_date) = 11 THEN sale_amount ELSE 0 END) AS nov_sales,
SUM(CASE WHEN MONTH(sale_date) = 12 THEN sale_amount ELSE 0 END) AS dec_sales
FROM sales_table
GROUP BY user_id
ORDER BY GREATEST(jan_sales, feb_sales, mar_sales, apr_sales, may_sales, jun_sales, jul_sales, aug_sales, sep_sales, oct_sales, nov_sales, dec_sales) DESC
```
这段代码会计算每个用户在每个月份的销售额,并按照最大销售额进行排序。请注意,这里的 `sales_table` 是你的销售数据表,包括 `user_id`,`sale_date` 和 `sale_amount` 等字段。
希望这能回答你的问题!
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