显示销售月份以及按销售额降序排列的当月销售数量

Question

显示销售月份以及按销售额降序排列的当月完成的销售数量。

我使用了提取函数从日期中提取月份，但它给出的是月份编号而不是月份的全名

select extract(month from sldate) as month, count(sid) as number_sale from sale 
 group by sldate  
order by sid desc

这是桌子

销售表

SALEID  SID SLDATE
1001    1   01-JAN-14
1002    5   02-JAN-14
1003    4   01-FEB-14
1004    1   01-MAR-14
1005    2   01-FEB-14
1006    1   01-JUN-15

预期结果

MONTH        NUMBER_SALE
February    2
January         2
March           1
June            1

Answer 1

这回答了用 MySql 标记的原始问题。
您需要将其与年份结合起来，而不是仅提取月份，因为您不想混合不同年份同月的销售额，因此使用

year_month

，然后使用

monthname()

来获取当月的销售额名称：

select 
  monthname(concat(extract(year_month from sldate), '01')) as month, 
  count(sid) as number_sale 
from sale 
group by month
order by number_sale desc

查看演示。
结果：

| month    | number_sale |
| -------- | ----------- |
| February | 2           |
| January  | 2           |
| March    | 1           |
| June     | 1           |

Answer 2

select to_char(sldate,'Month') as Month,count(*) as number_sale from sale group by to_char(sldate,'Month') order by count(*) desc

这是更简单的解决方案

Answer 3

SELECT TO_CHAR(SLDATE, 'Month') Month, COUNT(SALEID) NUMBER_SALE FROM Sale GROUP BY TO_CHAR(SLDATE, 'Month') ORDER BY NUMBER_SALE DESC

Answer 4

 select to_char(sldate,'Month') Month, 
 count(to_char(sldate,'Month')) NUMBER_SALE
 from sale  group by (to_char(sldate,'Month')) 
 order by  NUMBER_SALE desc

1. 显示销售月份以及当月完成的销售数量（按销售额降序排列）。

输出

MONTH   NUMBER_SALE
January     2
February    2
March       1
June        1

Answer 5

select to_char(sldate,'Month') as month,count(sid) as NUMBER_SALE from sale 
  group by to_char(sldate,'Month') 
order by NUMBER_SALE desc

Answer 6

检查下面的查询

SELECT TO_CHAR(SLDATE,'Month')"MONTH", COUNT(SID) AS NUMBER_SALE
FROM SALE
GROUP BY TO_CHAR(SLDATE,'Month')
ORDER BY COUNT(SID) DESC