面试官：ROW_NUMBER() 和 GROUP BY 到底差在哪？5 分钟彻底秒杀！https://blog.csdn.net/RickyIT/article/details/156892518?sharetype=blogdetail&sharerId=156892518&sharerefer=PC&sharesource=RickyIT&spm=1011.2480.3001.8118
