MYSQL获取某月天数
作者：互联网
select day( last_day( concat(( SELECT CONCAT('2020','01') AS date ),'01') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','02') AS date ),'02') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','03') AS date ),'03') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','04') AS date ),'04') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','05') AS date ),'05') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','06') AS date ),'06') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','07') AS date ),'07') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','08') AS date ),'08') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','09') AS date ),'09') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','10') AS date ),'10') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','11') AS date ),'11') )) AS cm_day_cnt UNION all
select day( last_day( concat(( SELECT CONCAT('2020','12') AS date ),'12') )) AS cm_day_cnt 标签：cnt,cm,天数,SELECT,CONCAT,MYSQL,某月,day,select 来源： https://blog.csdn.net/Theshy08/article/details/122377738