The STUDENT_GRADES table has these columns:STUDENT_ID NUMBER(12)SEMESTER_END DATEGPA NUMBER(4,3)The registrar requested a report listing the students‘ grade point averages (GPA) sorted from highest grade point average to lowest.Which statement produces a report that displays the student ID and GPA in the sorted order requested by the registrar? （）A. SELECT student_id, gpa FROM student_grades ORDER BY gpa ASC;B. SELECT student_id, gpa FROM student_grades SORT ORDER BY gpa ASC;C. SELECT student_id, gpa FROM student_grades SORT ORDER BY gpa;D. SELECT student_id, gpa FROM student_grades ORDER BY gpa;E. SELECT student_id, gpa FROM student_grades SORT ORDER BY gpa DESC;F. SELECT student_id, gpa FROM student_grades ORDER BY gpa DESC;
The STUDENT_GRADES table has these columns:STUDENT_ID NUMBER(12)SEMESTER_END DATEGPA NUMBER(4,3)The registrar requested a report listing the students‘ grade point averages (GPA) sorted from highest grade point average to lowest.Which statement produces a report that displays the student ID and GPA in the sorted order requested by the registrar? （）
A. SELECT student_id, gpa FROM student_grades ORDER BY gpa ASC;
B. SELECT student_id, gpa FROM student_grades SORT ORDER BY gpa ASC;
C. SELECT student_id, gpa FROM student_grades SORT ORDER BY gpa;
D. SELECT student_id, gpa FROM student_grades ORDER BY gpa;
E. SELECT student_id, gpa FROM student_grades SORT ORDER BY gpa DESC;
F. SELECT student_id, gpa FROM student_grades ORDER BY gpa DESC;
相关考题：
You need to design a student registration database that contains several tables storing academic information.The STUDENTS table stores information about a student. The STUDENT_GRADES table storesinformation about the student‘s grades. Both of the tables have a column named STUDENT_ID. The STUDENT_ID column in the STUDENTS table is a primary key.You need to create a foreign key on the STUDENT_ID column of the STUDENT_GRADES table thatpoints to the STUDENT_ID column of the STUDENTS table. Which statement creates the foreign key?（）A. CREATE TABLE student_grades (student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT student_id_fk REFERENCES (student_id) FOREIGN KEY student (student_id));B. CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id));C. CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT FOREIGN KEY (student_id) REFERENCES student (student_id));D. CREATE TABLE student_grades(student_id NUMBER(12),semester_end DATE, gpa NUMBER(4,3), CONSTRAINT student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id));
You need to modify the STUDENTS table to add a primary key on the STUDENT_ID column. The table is currently empty. Which statement accomplishes this task?() A. ALTER TABLE students ADD PRIMARY KEY _ id;B. ALTER TABLE students ADD CONSTRAINT PRIMARY KEY (student_id);C. ALTER TABLE students ADD CONSTRAINT stud_id_pk PRIMARY KEY student_id;D. ALTER TABLE students ADD CONSTRAINT stud_id_pk PRIMARY KEY (student_id);E. ALTER TABLE students MODIFY CONSTRAINT stud_id_pk PRIMARY KEY (student_id);
Which statement explicitly names a constraint? () A. ALTER TABLE student_grades ADD FOREIGN KEY (student_id) REFERENCES students (student_id);B. ALTER TABLE student_grades ADD CONSTRAINT NAME = student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id);C. ALTER TABLE student_grades ADD CONSTRAINT student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id);D. ALTER TABLE student grades ADD NAMED CONSTRAINT student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id);E. ALTER TABLE student grades ADD NAME student_id_fk FOREIGN KEY (student_id) REFERENCES students (student_id);
The STUDENT_GRADES table has these columns:The register has requested a report listing the students‘ grade point averages (GPA), sorted from highest grade point average to lowest within each semester, starting from the earliest date. Which statement accomplishes this?（）A. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end DESC, gpa DESC;B. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end ASC, gpa ASC;C. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY semester_end, gpa DESC;D. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC, semester_end DESC;E. SELECT student_id, semester_end, gpa FROM student_grades ORDER BY gpa DESC, semester_end ASC;
有以下程序:includeusing namespace std;class MyClass{public:MyClass(int n){numbe 有以下程序： #include＜iostream＞ using namespace std； class MyClass { public： MyClass(int n){number=n；} //拷贝构造函数 MyClass(MyClassother) {number＝other.number；} ～MyClass() {} private： int number； }； MyClass fun(MyClass p)A．5B．4C．3D．2
阅读以下Java代码，填充（1）~（5）的空缺，将解答填入答题纸的对应栏内。 【说明】进行两个整数之间的比较，由考生通过输入窗口分别输入两个整数，程序比较出结果。例如：先后输入的两个数分别为25和36。 比较结果显示： 25!=36 25＜36 25＜=36 【Java代码】 import javax.swing.JOptionPane; public class Java3 { public static void main(String args[]) { String （1） //用户输入第1个字符串 secondNuimber, //用户输入第2个字符串 result; //包含输出结果的字符串 int number1, //比较的第1个数 number2; //比较的第2个数 //读用户输入的第1个字符串 firstNumber= JOptionPane（2）("Enter first integer:"); //读用户输入的第2个字符串 secondNumber= JOpttionPane.showlnputDialog("Enter second integer:"); //将字符串类型转换成整数类型 number1=Integer.（3）(firstNumber); number2=Integer.parselnt(secondNumber); result=""; if(（4）) result=number1+"=="+number2; if(number1!=number2) result=number1+"!=”"+number2; if(number1＜number2) result=result+"\n"+number1+"＜"+number2; if(numbe1＞number2) result=result+"\n"+number1+"＞"+number2; if(number1＜=number2) result=result+"\n"+number1+"＜="+number2; if(number1＞=number2) result=result+"\n"+number1+"＞="+number2; //显示结果 JOptionPane.（5）( null,result,"Comparison Results", JOptionPane.INFORMATION_MESSAGE.; //程序正常退出 System.exit(0); }}
16、MySQL数据库中，通常将用户写入对应的权限表来控制访问权限的，以下属于用户权限得选项（）。A．UserB．dbC．table_privD．columns_priv