每日分享之二

[AntTech_VIOEBO]

统计每个客户的订单总数和总金额则主要利用GROUP BY和聚合函数来完成。通过GROUP BY按客户分组，使用COUNT(*)统计订单数量，使用SUM(amount)计算订单总金额。例如：

sqlCopy Code

SELECT customer_id, COUNT(*) AS total_orders, SUM(amount) AS total_amount
FROM orders
GROUP BY customer_id;

[AntTech_2FGT7O]

14:38:45,逛逛，留个评论！