mysql中的concat函数的使用问题

2025-05-14 19:21:46
推荐回答(2个)
回答1:

SELECT a.*,group_concat(b.picture_path) FROM ep_pollution_comments a LEFT
JOIN ep_pollution_comments_picture b ON a.comments_id = b.comments_id group by a.comments_id,a.pollution_id,a.comments_chile,a.comments_info, a.create_time,a.user_id;

回答2:

p拼接字符串用的