题解 | #截取出年龄#
截取出年龄
https://www.nowcoder.com/practice/b8d8a87fe1fc415c96f355dc62bdd12f
#俄罗斯套娃式截取 select substring_index(substring_index(profile,",",3),",",-1) as age, count(*) as number from user_submit group by age
截取出年龄
https://www.nowcoder.com/practice/b8d8a87fe1fc415c96f355dc62bdd12f
#俄罗斯套娃式截取 select substring_index(substring_index(profile,",",3),",",-1) as age, count(*) as number from user_submit group by age
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嵌入式的小白:很多面试,面试前不会去打扰cto的,但一般cto不会在这些小事上刷人,只能说这个cto比较操心,啥重要不重要,紧急不紧急的,估计都会过问,平淡看待吧