題目：現(xiàn)在運營想要分別查看學(xué)校為山東大學(xué)或者性別為男性的用戶的device_id、gender、age和gpa數(shù)據(jù)，請取出相應(yīng)結(jié)果，結(jié)果不去重。 示例：user_profile id device_id gender age university gpa active_days_within_30 question_cnt answer_cnt 1 2138 male 21 北京大學(xué) 3.4 7 2 12 2 3214 male 復(fù)旦大學(xué) 4 15 5 25 3 6543 female 20 北京大學(xué) 3.2 12 3 30 4 2315 female 23 浙江大學(xué) 3.6 5 1 2 5 5432 male 25 山東大學(xué) 3.8 20 15 70 6 2131 male 28 山東大學(xué) 3.3 15 7 13 7 4321 male 28 復(fù)旦大學(xué) 3.6 9 6 52 根據(jù)示例，你的查詢應(yīng)返回以下結(jié)果（注意輸出的順序，先輸出學(xué)校為山東大學(xué)再輸出性別為男生的信息）： device_id gender age gpa 5432 male 25 3.8 2131 male 28 3.3 2138 male 21 3.4 3214 male None 4 5432 male 25 3.8 2131 male 28 3.3 4321 male 28 3.6
示例1
輸入
drop table if exists `user_profile`;
drop table if exists `question_practice_detail`;
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,
`gpa` float,
`active_days_within_30` int ,
`question_cnt` int ,
`answer_cnt` int
);
CREATE TABLE `question_practice_detail` (
`id` int NOT NULL,
`device_id` int NOT NULL,
`question_id`int NOT NULL,
`result` varchar(32) NOT NULL
);
CREATE TABLE `question_detail` (
`id` int NOT NULL,
`question_id`int NOT NULL,
`difficult_level` varchar(32) NOT NULL
);
INSERT INTO user_profile VALUES(1,2138,'male',21,'北京大學(xué)',3.4,7,2,12);
INSERT INTO user_profile VALUES(2,3214,'male',null,'復(fù)旦大學(xué)',4.0,15,5,25);
INSERT INTO user_profile VALUES(3,6543,'female',20,'北京大學(xué)',3.2,12,3,30);
INSERT INTO user_profile VALUES(4,2315,'female',23,'浙江大學(xué)',3.6,5,1,2);
INSERT INTO user_profile VALUES(5,5432,'male',25,'山東大學(xué)',3.8,20,15,70);
INSERT INTO user_profile VALUES(6,2131,'male',28,'山東大學(xué)',3.3,15,7,13);
INSERT INTO user_profile VALUES(7,4321,'male',28,'復(fù)旦大學(xué)',3.6,9,6,52);
INSERT INTO question_practice_detail VALUES(1,2138,111,'wrong');
INSERT INTO question_practice_detail VALUES(2,3214,112,'wrong');
INSERT INTO question_practice_detail VALUES(3,3214,113,'wrong');
INSERT INTO question_practice_detail VALUES(4,6543,111,'right');
INSERT INTO question_practice_detail VALUES(5,2315,115,'right');
INSERT INTO question_practice_detail VALUES(6,2315,116,'right');
INSERT INTO question_practice_detail VALUES(7,2315,117,'wrong');
INSERT INTO question_practice_detail VALUES(8,5432,117,'wrong');
INSERT INTO question_practice_detail VALUES(9,5432,112,'wrong');
INSERT INTO question_practice_detail VALUES(10,2131,113,'right');
INSERT INTO question_practice_detail VALUES(11,5432,113,'wrong');
INSERT INTO question_practice_detail VALUES(12,2315,115,'right');
INSERT INTO question_practice_detail VALUES(13,2315,116,'right');
INSERT INTO question_practice_detail VALUES(14,2315,117,'wrong');
INSERT INTO question_practice_detail VALUES(15,5432,117,'wrong');
INSERT INTO question_practice_detail VALUES(16,5432,112,'wrong');
INSERT INTO question_practice_detail VALUES(17,2131,113,'right');
INSERT INTO question_practice_detail VALUES(18,5432,113,'wrong');
INSERT INTO question_practice_detail VALUES(19,2315,117,'wrong');
INSERT INTO question_practice_detail VALUES(20,5432,117,'wrong');
INSERT INTO question_practice_detail VALUES(21,5432,112,'wrong');
INSERT INTO question_practice_detail VALUES(22,2131,113,'right');
INSERT INTO question_practice_detail VALUES(23,5432,113,'wrong');
INSERT INTO question_detail VALUES(1,111,'hard');
INSERT INTO question_detail VALUES(2,112,'medium');
INSERT INTO question_detail VALUES(3,113,'easy');
INSERT INTO question_detail VALUES(4,115,'easy');
INSERT INTO question_detail VALUES(5,116,'medium');
INSERT INTO question_detail VALUES(6,117,'easy');
輸出
5432|male|25|3.8
2131|male|28|3.3
2138|male|21|3.4
3214|male|None|4.0
5432|male|25|3.8
2131|male|28|3.3
4321|male|28|3.6
加載中...