A. select * from student order by sdept , sage
B. select sname, sdept, sage from student order by sdept , sage desc
C. select sname, sdept, sage from student order by sdept desc , sage
D. select * from student order by sdept desc, sage
举一反三
- 【多选题】针对学生表Student(Sno,Sname, Ssex,Sage,Sdept),其中sno为学号,sname为姓名,ssex为性别,sage为年龄,sdept为系别。要检索学生表中年龄在17至25岁之间(包括16和30)的学生的姓名及年龄,SQL语句正确的是()。 A. Select * From Student Where Sage between 16 and 30 B. Select Sname, Sage From Student Where Sage between 16 and 30 C. Select Sname, Sage From Student Where Sage >= 16and Sage<= 30 D. Select Sname, Sage From Student Where Sage >= 16 or Sage<= 30
- 针对学生表Student(Sno,Sname, Ssex,Sage,Sdept),其中sno为学号,sname为姓名,ssex为性别,sage为年龄,sdept为系别。要检索学生表中年龄在17至25岁之间(包括16和30)的学生的姓名及年龄,SQL语句正确的是( )。 A: Select Sname, Sage From Student Where Sage between 16 and 30; B: Select Sname, Sage From Student Where Sage >= 16and Sage<= 30; C: Select * From Student Where Sage between 16 and 30; D: Select Sname, Sage From Student Where Sage >= 16 or Sage<= 30;
- 现要利用Student(sno, sname, ssex, sage, sdept)表查询年龄最小的学生的姓名和年龄。下列实现此功能的查询语句正确的是( )。 A: SELECT sname, Min( sage )from student B: SELECT sname ,sage from student where sage=Min( sage ) C: SELECT TOP 1 Sname , Sage From student D: SELECT TOP 1 sname , sage from student order by sage
- 在所有学生中查询比计算机系学生平均年龄大的学生姓名,可以使用的查询语句是: A: SELECT Sname FROM Student WHERE Sage > ( SELECT AVG(Sage) FROM Student ); WHERE Sdept = 'CS' B: SELECT Sname FROM Student WHERE Sage > AVG( SELECT Sage FROM Student WHERE Sdept = 'CS' ); C: SELECT Sname FROM Student WHERE Sage > ( SELECT AVG(Sage) FROM Student WHERE Sdept = 'CS' ); D: SELECT Sname FROM Student WHERE AVG(Sage) > ( SELECT Sage FROM Student WHERE Sdept = 'CS' );
- 中国大学MOOC: 已知学生表为Student(Sno, Sname, Sage, Ssex, Sdept) 。用SQL实现:检索所有姓‘李’的学生姓名、年龄和所在系;select sname,sage,sdept from student where sname ’李%’ (答案请全部小写字母)
内容
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中国大学MOOC:"针对表Student(sno, sname, ssex, sage, sdept),其中sno为学号,sname为姓名,ssex为性别,sage为年龄,sdept为系别。查询女生平均年龄超过20岁的系别以及女生平均年龄。";
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在所有学生中查询比计算机系所有学生年龄都要大的学生姓名,正确的查询语句是___________________。 A: SELECT Sname FROM Student WHERE Sage > ( SELECT MAX(Sage) FROM Student WHERE Sdept = 'CS'); B: SELECT Sname FROM Student WHERE Sage > ALL ( SELECT Sage FROM Student WHERE Sdept = 'CS'); C: SELECT Sname FROM Student S1 WHERE EXISTS ( SELECT Sage FROM Student S2 WHERE Sdept = 'CS' AND S1.Sage > S2.Sage); D: SELECT Sname FROM Student S1 WHERE NOT EXISTS ( SELECT * FROM Student S2 WHERE Sdept = 'CS' AND S1.Sage <= S2.Sage);
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设学生关系Students(Sno,Sname,Sex,Sdept,Sage,Sadd),Sno、Sname、Sex、Sdept、Sage、Sadd分别表示学生的学号、姓名、性别、所在系、年龄和住址。查询比计算机系(CS)所有学生年龄都小于其他系的学生姓名及年龄的SQL语句为: SELECT Sname,Sage FROM Students WHERE Sage ______ (SELECT Sage FROM Students WHERE ______) A.Sdept=’CS’ B.Sdept<>’CS’ C.’Sdept’=CS D.’Sdept’<>CS A: AND Sdept<>’CS’;
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计算机系年龄最大的学生的信息select *from studentwhere __________________________________ A: sdept='计算机系' and sage=(select max(sage) from student where sdept='计算机系') B: sdept='计算机系' and sage=max(sage) C: sdept='计算机系' or sage=(select max(sage) from student ) D: sdept='计算机系' or sage=max(sage)
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要在student(sno,sname,ssex,sage,sdept)表中,查询全体女生的姓名、年龄,以下正确的查询语句是( )。 A: select * from student where ssex='女' B: select 姓名, 年龄 from student where 性别 ='女' C: select sname , sage from student where ssex='女’ D: select sname 姓名, sage 年龄 from student where ssex='女'