select job,left(date,7) mon,sum(num) cnt from resume_info where left(date,4)=2025 group by job,mon order by mon desc,cnt desc
思路:使用left来截取字符串得到想要的年月,此题也可以用date_format 来对字符串进行处理
select job,left(date,7) mon,sum(num) cnt from resume_info where left(date,4)=2025 group by job,mon order by mon desc,cnt desc
思路:使用left来截取字符串得到想要的年月,此题也可以用date_format 来对字符串进行处理