我需要查询当天、本周、本月或指定日期或指定日期段的某一商店的订单销售总额、退单总额、毛利润，sql怎么写

你好！针对你的问题，可以使用以下 SQL 查询语句实现：

查询当天某商店的订单销售总额、退单总额、毛利润：

SELECT SUM(order_amount) AS sales_amount,
       SUM(refund_amount) AS refund_amount,
       SUM(profit) AS total_profit
FROM orders
WHERE store_id = '商店ID'
  AND DATE(order_time) = CURDATE();

查询本周某商店的订单销售总额、退单总额、毛利润：

SELECT SUM(order_amount) AS sales_amount,
       SUM(refund_amount) AS refund_amount,
       SUM(profit) AS total_profit
FROM orders
WHERE store_id = '商店ID'
  AND YEARWEEK(DATE(order_time),1) = YEARWEEK(CURDATE(),1);

查询本月某商店的订单销售总额、退单总额、毛利润：

SELECT SUM(order_amount) AS sales_amount,
       SUM(refund_amount) AS refund_amount,
       SUM(profit) AS total_profit
FROM orders
WHERE store_id = '商店ID'
  AND YEAR(order_time) = YEAR(CURDATE())
  AND MONTH(order_time) = MONTH(CURDATE());

查询指定日期或指定日期段某商店的订单销售总额、退单总额、毛利润：

SELECT SUM(order_amount) AS sales_amount,
       SUM(refund_amount) AS refund_amount,
       SUM(profit) AS total_profit
FROM orders
WHERE store_id = '商店ID'
  AND order_time >= '开始日期'
  AND order_time < '结束日期';

其中，orders 表为订单表，包含订单金额、退款金额和毛利润等字段；store_id 为商店 ID，可以根据具体情况进行修改。