mysql 中的季度环比/月环比分析

Question

我有贷款数据，我想根据季度或月份比较不同年份的销售额

我的数据是这样的

disbursementdate | amount | product | cluster
2017-01-01       | 1000   | HL      | West
2018-02-01       | 1000   | PL      | East

所以在查询之后，我希望结果看起来像这样

 Quarter | 2017 | 2018
   Q1    | 1000 | 0
   Q2    | 100  | 1000

同样的，也可以做月度分析

我也不反对以不同的格式存储数据...可以在不同的字段中拆分日期，例如月季年

我正在为查询而苦苦挣扎

Answer 1

试试这个：

    SELECT YEAR(disbursementdate) as _year, quarter, SUM(amount)
    FROM
       (
      SELECT disbursementdate, QUARTER(disbursementdate) as quarter, 
       amount,  product, cluster
       FROM mytable
   ) AS sub_query
  GROUP BY _year, quarter

格式有点不同，但应该更利于分析

Answer 2

您可以使用条件聚合：

select quarter(disbursementdate) as quarter,
       sum(case when year(disbursementdate) = 2017 then amount else 0 end) as amount_2017,
       sum(case when year(disbursementdate) = 2018 then amount else 0 end) as amount_2018
from 
group by quarter(disbursementdate) ;

如果你想 year/quarter 在不同的行上，你可以这样做：

select year(disbursementdate) as year, quarter(disbursementdate) as quarter,
       sum(amount)
from 
group by year(disbursementdate), quarter(disbursementdate) ;

mysql 中的季度环比/月环比分析

Quarter on Quarter/ Month on Month analysis in mysql

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