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題目：現(xiàn)在運營舉辦了一場比賽，收到了一些參賽申請，表數(shù)據(jù)記錄形式如下所示，現(xiàn)在運營想要統(tǒng)計每個年齡的用戶分別有多少參賽者，請取出相應(yīng)結(jié)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 根據(jù)示例，你的查詢應(yīng)返回以下結(jié)果： age number 27 1 26 1 25 1 23 1 22 1
示例1

輸入

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');

輸出

age|number
27|1
26|1
25|1
23|1
22|1
加載中...