select t1.job,t1.first_year_mon,t1.first_year_cnt, t2.second_year_mon,t2.second_year_cntfrom(select job, -- concat(job,month(date))as id, date_format(date,'%Y-%m')as first_year_mon, sum(num)as first_year_cnt -- y是两位数25,Y才是四位数2025from resume_infowhere year(date)=2025group by job,date_format(date,'%Y-...