mysql按月統計六個月內不同類型訂單的成交金額

創建數據庫

 

CREATE DATABASE test;

 

創建訂單表

CREATE TABLE `t_order` (
  `id` bigint(4) NOT NULL AUTO_INCREMENT COMMENT '主鍵，自增',  
  `source` smallint(1) NOT NULL COMMENT '訂單來源:1:商城 2:訂單導入',
  `status` smallint(1) NOT NULL COMMENT '訂單狀態:1: 待確認 2：已確認 3:已完成',
  `order_amt` decimal(20,8) NOT NULL COMMENT '訂單總金額',
  `create_user_id` bigint(4) DEFAULT NULL COMMENT '創建人id',
  `create_time` datetime DEFAULT NULL COMMENT '創建日期',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COMMENT='訂單表';

 

此處訂單表只涉及統計需要的字段，實際開發應該會復雜一些。

 

插入測試數據

INSERT INTO `t_order` (`id`, `source`, `status`, `order_amt`, `create_user_id`, `create_time`) VALUES ('1', '1', '2', '8000.00000000', '1', '2018-01-01 22:12:41');
INSERT INTO `t_order` (`id`, `source`, `status`, `order_amt`, `create_user_id`, `create_time`) VALUES ('2', '2', '3', '9000.00000000', '1', '2018-05-16 22:13:24');
INSERT INTO `t_order` (`id`, `source`, `status`, `order_amt`, `create_user_id`, `create_time`) VALUES ('3', '1', '3', '5000.00000000', '1', '2018-01-17 22:14:00');
INSERT INTO `t_order` (`id`, `source`, `status`, `order_amt`, `create_user_id`, `create_time`) VALUES ('4', '1', '3', '12000.00000000', '2', '2017-11-16 22:15:03');
INSERT INTO `t_order` (`id`, `source`, `status`, `order_amt`, `create_user_id`, `create_time`) VALUES ('5', '2', '3', '7000.00000000', '2', '2018-04-18 22:15:43');

 

統計六個月內不同類型已完成狀態訂單的成交額

SELECT
    six_month.`month` `month`,
    source.source source,
    IFNULL(SUM(o.order_amt), 0) orderAmt
FROM
    (
        SELECT DATE_FORMAT(now(), '%Y-%c') month FROM DUAL
        UNION ALL SELECT DATE_FORMAT(date_sub(now(), INTERVAL 1 MONTH), '%Y-%c') month FROM DUAL
        UNION ALL SELECT DATE_FORMAT(date_sub(now(), INTERVAL 2 MONTH), '%Y-%c') month FROM DUAL
        UNION ALL SELECT DATE_FORMAT(date_sub(now(), INTERVAL 3 MONTH), '%Y-%c') month FROM DUAL
        UNION ALL SELECT DATE_FORMAT(date_sub(now(), INTERVAL 4 MONTH), '%Y-%c') month FROM DUAL
        UNION ALL SELECT DATE_FORMAT(date_sub(now(), INTERVAL 5 MONTH), '%Y-%c') month FROM DUAL
    ) six_month
CROSS JOIN (
    SELECT 1 source FROM DUAL
    union all 
    SELECT 2 source FROM DUAL
) source
LEFT JOIN t_order o ON o.source = source.source
AND DATE_FORMAT(o.create_time, '%Y-%c') = six_month.`month`
AND `status` = 3
GROUP BY
    six_month.`month`,
    source.source;

 

統計結果

 

從結果可以看出，統計出了最近六個月內每個月每一種訂單類型的已完成狀態的訂單的成交額。