mysql子查询用法

mysql子查询用法1 可以当值来用
select id from hcyuyin_share where id=(select id from hcyuyin_share limit 200000,1)
2 可以当做表来用
select o.nickName,o.sex,o.province,o.city,from_unixtime(m.time,'%Y-%m-%d %H:%i:%s') as starttime,from_unixtime(z.time,'%Y-%m-%d %H:%i:%s') as endtime,ROUND((z.time-m.time)/60) as haoshifenzhong,from_unixtime(z1.time,'%Y-%m-%d') as choujiangtime from (select openid,time from xintjiashen_zhongjiang2   union select openid,time from xintjiashen_meizhong2) as z left join xintjiashen_my as m on z.openid=m.openid left join xintjiashen_zhongjiang1 as z1 on m.openid=z1.openid left join xintjiashen_oauthinfo as o on m.openid=o.wechatId where z1.prize_id !=8


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