基于教材上的学生表Student、课程表Course和选课表SC,查找所有比学生“王华”年龄大的学生姓名、年龄和性别,正确的SQL语句是________。
A: SELECTSname, Sage, Ssex FROMStudentWHERE Sage >; ( SELECT Sage FROM Student WHERESname = '王华' )
B: SELECTSname, Sage,Ssex FROM Student WHERESname = '王华'
C: SELECTSname, Sage,Ssex FROMStudentWHERE Sage >; ( SELECT Sage WHERESname = '王华' )
D: SELECTSname, Sage,SsexFROM StudentWHERE Sage >; '王华'.Sage
A: SELECTSname, Sage, Ssex FROMStudentWHERE Sage >; ( SELECT Sage FROM Student WHERESname = '王华' )
B: SELECTSname, Sage,Ssex FROM Student WHERESname = '王华'
C: SELECTSname, Sage,Ssex FROMStudentWHERE Sage >; ( SELECT Sage WHERESname = '王华' )
D: SELECTSname, Sage,SsexFROM StudentWHERE Sage >; '王华'.Sage
举一反三
- 基于这样的三个表即学生表S、课程表C和学生选课表SC,它们的结构如下:S(SNO,SNAME,SSEX,SAGE,SDEPT),C(CNO,CNAME),SC(SNO,CNO,GRADE),其中:SNO为学号,SNAME为姓名,SSEX为性别,SAGE为年龄,SDEPT为系别,CNO为课程号,CNAME为课程名,GRADE为成绩。检索所有比“王华”年龄大的学生姓名、年龄和性别。正确的SELECT语句是()。 A: SELECTSNAME,SAGE,SSEXFROMSWHEREAGE>;(SELECTSAGEFROMSWHERESNAME=’王华’) B: SELECTSNAME,SAGE,SSEXFROMSWHERESNAME=’王华’ C: SELECTSNAME,SAGE,SSEXFROMSWHERESAGE>;(SELECTSAGEWHERESNAME=’王华’) D: SELECTSNAME,SAGE,SSEXFROMSWHERESAGE>;王华.SAGE
- 【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)。要检索学生表中年龄在17至25岁之间(包括17和25)的学生的姓名及年龄,SQL语句正确的是( )。 A: Select * From Student Where Sage between 17 and 25 B: Select Sname, Sage From Student Where Sage between 17 and 25 C: Select Sname, Sage From Student Where Sage >= 17 and Sage<= 25 D: Select Sname, Sage From Student Where Sage >= 17 or Sage<= 25
- 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
- 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;