weixin_45879334的博客

1. 实习广场投递简历分析（一）题目链接具体实现：select job, sum(num)cnt from resume_info where date like '2025%' group by job order by cnt desc;总结：模糊查询使用like，我一开始使用=报错。group by应该在where后面2. 实习广场投递简历分析（二）题目链接具体实现：select job, date_format(date, '2025-%m') as mon, sum(