Examine the structure of the STUDENTS table:You need to create a report of the 10 students

题目

Examine the structure of the STUDENTS table:You need to create a report of the 10 students who achieved the highest ranking in the course INT SQL and who completed the course in the year 1999.Which SQL statement accomplishes this task?()

A.

B.

C.

D.

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相似问题和答案

第1题:

Teaching activities must be based on the students' cognitive development level and the existing experienced knowledge, thus, students' personal knowledge, students' life world and are also the important curriculum resources except textbook.

A.game activities
B.labour activities
C.attitude
D.direct experience

答案:D
解析:
考查教学活动。教学活动必须建立在学生的认知发展水平和已有的知识经验基础之上。因此.学生的个人知识储备、生活世界和直接经验都是重要的课程资源。所以D项正确。

第2题:

Teaching activities must be based on the students' cognitive development level and the existing experienced knowledge, thus, students' personal knowledge, students' life world and__________ are also the important curriculum resources except textbook.

A.game activities
B.labour activities
C.attitude
D.direct experience

答案:D
解析:
考查教学活动。教学活动必须建立在学生的认知发展水平和已有的知识经验基础之上。因此,学生的个人知识储备、生活世界和直接经验都是重要的课程资源。所以D项正确。

第3题:

Students: Professor Lance, your lecture on cloning is very interesting!

Professor: .Are you a student of biology?

Students: No, I major in chemistry.

A. I think so

B. I'm glad to hear that

C. It must be

D. It's not so interesting


正确答案:B
学生告诉教授Lance说教授的讲座很有趣,教授对此做了回答,并问他是否是学习生物学的。只有选项B(听你这么说我很高兴)符合英语国家人民在受到赞扬情况下的答话习惯。

第4题:

【单选题】按照年龄的升序显示学生信息,正确的命令是?

A.db.students.find().sort({"age":1})

B.db.students.find().sort({"age":-1})

C.db.students.find().sort("age")

D.db.students.find().sort({"age":"asc"})


Select MAX(Sage),MIN(Sage),AVG(Sage) from Student

第5题:

创建students对象,_______语句可以选出第二个同学的身高。 students数据如下: age height weight 1 19 170 68 2 20 165 65 3 18 175 65

A.students[1,'height']

B.students.loc[2,'height']

C.students.iloc[1, 1]

D.students['height'][3]


students.loc[2,'height'];students.iloc[1, 1]

第6题:

Teaching activities must be based on the students' cognitive development level and theexistingexperiencedknowledge,thus,students'personal knowledge,students'
Lifeworld and__________ are also the important curriculum resources except textbook.

A.game activities
B.labour activities
C.attitudes
D.direct experience

答案:D
解析:
考查教学活动。教学活动必须建立在学生的认知发展水平和已有的知识经验基础之上。因此,学生的个人知识储备、生活世界和直接经验都是重要的课程资源.所以D项正确。

第7题:

声明并创建一个学生类Student的对象s,下列语法格式正确的是()。

A.Student s = Student();

B.Student s;

C.Student s = new Student();

D.Student s = new ();


C

第8题:

下面关于的视图管理的语句不正确的是:()

A.CREATEVIEWview_students_computerASSELECT*FROMstudentsWHEREdept='计算机技术';

B.CREATEORREPLACEVIEWview_students_computerASSELECT*FROMstudentsWHEREdept='计算机技术';

C.UPDATEVIEWview_students_computerASSELECT*FROMstudentsWHEREdept='计算机技术';

D.ALTERVIEWview_students_computerASSELECT*FROMstudentsWHEREdept='计算机技术';


参考答案:C

第9题:

【单选题】查询成绩在60-80之间的学生信息,正确的语句是?

A.db.students.find({"score":{$gte:60,$lte:80}})

B.db.students.find({"score":{$gte:80},{"score":{$lte:60}}})

C.db.students.find({"score":{$gte:60},{"score":{$te:80}}})

D.db.students.find({"score":{$gt:80},{"score":{$lt:60}}})


select a.stud_id,stud_name,course_name,score from tblscore a join tblstudent b on a.stud_id=b.stud_id join tblcourse c on a.course_id=c.course_id where score between 80 and 90 order by score

第10题:

创建students对象,_______语句可以选出第二个同学的身高。 students数据如下: age height weight 1 19 170 68 2 20 165 65 3 18 175 65

A.students.loc[2,'height']

B.students.iloc[1, 1]

C.students[1,'height']

D.students['height'][3]


students.loc[2,'height'];students.iloc[1, 1]