设置多个日期范围的多个总和

Question

这是我要完成的查询。

SELECT salesrep, 
    SUM(lines_total) AS OTSUM,
    SUM(order_type = 'NEW') OTNEW,
    SUM(order_type = 'REPEAT') OTREPEAT,
    SUM(lines_total 
      WHERE order_closed BETWEEN '2020-11-01' AND '2020-11-30') AS OTLMSUM
    SUM(lines_total 
      WHERE order_closed BETWEEN '2020-12-01' AND '2020-12-31') AS OTTMSUM
FROM `ranger_orders`
WHERE order_closed BETWEEN '2020-01-01' AND '2020-12-31'

这当然失败了，但是我如何为多个日期范围设置 SUMS，末尾的 WHERE 日期范围需要保持原样。

对于这些行：

SUM(lines_total WHERE order_closed BETWEEN '2020-11-01' AND '2020-11-30') AS OTLMSUM
SUM(lines_total WHERE order_closed BETWEEN '2020-12-01' AND '2020-12-31') AS OTTMSUM

Answer 1

条件聚合需要 CASE 个表达式，例如：

SUM(CASE WHEN order_closed BETWEEN '2020-12-01' AND '2020-12-31' THEN lines_total ELSE 0 END) AS OTTMSUM

对于每个总和，相应地更改 BETWEEN '2020-12-01' AND '2020-12-31'。

Answer 2

要使销售代表的数据按行对齐，您仍然需要添加所有数字 - 但您可以在超出范围的地方用零替换....

SUM(IF (order_closed BETWEEN '2020-11-01' AND '2020-11-30', lines_total, 0)) AS OTLMSUM

您指出出现语法错误，但这看起来像是语义错误：

SUM(order_type = 'NEW') OTNEW

你真的想把这些加起来吗？算他们吗？对它们进行分类？

查询可能类似于...

SELECT salesrep, 
    SUM(lines_total) AS OTSUM,
    SUM(IF(order_type = 'NEW', 1, 0)) OTNEW,
    SUM(IF(order_type = 'REPEAT', 1, 0)) OTREPEAT,
    SUM(IF (order_closed BETWEEN '2020-11-01' AND '2020-11-30', lines_total, 0)) AS OTLMSUM
    SUM(if(order_closed BETWEEN '2020-12-01' AND '2020-12-31', lines_total, 0)) AS OTTMSUM
FROM `ranger_orders`
WHERE order_closed BETWEEN '2020-01-01' AND '2020-12-31'

此外，对于聚合查询（SUM、AVERAGE、COUNT...），您应该有一个 GROUP BY 子句....

GROUP BY salesrep

但是这样做不是更简单吗....

SELECT salesrep, 
    SUM(lines_total) AS OTSUM,
    SUM(IF(order_type = 'NEW', 1, 0)) AS OTNEW,
    SUM(IF(order_type = 'REPEAT', 1, 0)) AS OTREPEAT,
    DATE_FORMAT(order_closed, '%Y-%m') AS month,
    SUM(lines_total) AS otsum
FROM `ranger_orders`
WHERE order_closed BETWEEN '2020-01-01' AND '2020-12-31'
GROUP BY salesrep, DATE_FORMAT(order_closed, '%Y-%m')

设置多个日期范围的多个总和

SETUP multiple sums with multiple date ranges

mysql

sum

conditional-aggregation