drop table if exists user_profile;
CREATE TABLE `user_profile` (
`id` int NOT NULL,
`device_id` int NOT NULL,
`gender` varchar(14) NOT NULL,
`age` int ,
`university` varchar(32) NOT NULL,
`province` varchar(32) NOT NULL);
INSERT INTO user_profile VALUES(1,2138,'male',21,'北京大學','BeiJing');
INSERT INTO user_profile VALUES(2,3214,'male',null,'複旦大學','Shanghai');
INSERT INTO user_profile VALUES(3,6543,'female',20,'北京大學','BeiJing');
INSERT INTO user_profile VALUES(4,2315,'female',23,'浙江大學','ZheJiang');
INSERT INTO user_profile VALUES(5,5432,'male',25,'山東大學','Shandong');
複制輸出:
5432|male|25|山東大學
手把手帶你學SQL—牛客網SQL 查找年齡大于24歲的使用者資訊
代碼解析:
SELECT device_id
,gender
,age
,university
FROM user_profile
WHERE age >24