题目：现在运营举办了一场比赛，收到了一些参赛申请，表数据记录形式如下所示，现在运营想要统计每个年龄的用户分别有多少参赛者，请取出相应结果 示例：user_submit device_id profile blog_url 2138 180cm,75kg,27,male http:urbigboy777 3214 165cm,45kg,26,female http:urlkittycc 6543 178cm,65kg,25,male http:urltiger 4321 171cm,55kg,23,female http:urluhksd 2131 168cm,45kg,22,female http:urlsydney 根据示例，你的查询应返回以下结果： age number 27 1 26 1 25 1 23 1 22 1
示例1
输入
drop table if exists user_submit;
CREATE TABLE `user_submit` (
`id` int NOT NULL,
`device_id` int NOT NULL,
`profile` varchar(100) NOT NULL,
`blog_url` varchar(100) NOT NULL
);
INSERT INTO user_submit VALUES(1,2138,'180cm,75kg,27,male','http:/url/bisdgboy777');
INSERT INTO user_submit VALUES(1,3214,'165cm,45kg,26,female','http:/url/dkittycc');
INSERT INTO user_submit VALUES(1,6543,'178cm,65kg,25,male','http:/url/tigaer');
INSERT INTO user_submit VALUES(1,4321,'171cm,55kg,23,female','http:/url/uhsksd');
INSERT INTO user_submit VALUES(1,2131,'168cm,45kg,22,female','http:/url/sysdney');
加载中...