【单选题】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。查询学生的姓名sname，系别sdept和年龄sage，显示时按系别升序排列，系别相同的再按年龄降序排列。()
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
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）