题解 | #截取出年龄#
截取出年龄
https://www.nowcoder.com/practice/b8d8a87fe1fc415c96f355dc62bdd12f
select (substring_index(substring_index(profile,',',-2),',',1)) as age, count(device_id) as number from user_submit group by age
截取出年龄
https://www.nowcoder.com/practice/b8d8a87fe1fc415c96f355dc62bdd12f
select (substring_index(substring_index(profile,',',-2),',',1)) as age, count(device_id) as number from user_submit group by age
相关推荐
秋招投简历提醒助手:个人经验是,一般面二十场左右就会进入侃侃而谈阶段。我今年七月末的时候开始的第一次面试,都是很多不会,回复很慢。后面慢慢迭代,到九月中的时候基本上面啥说啥,很放松的状态