建立信息系统学生的视图是（） A: CREATE VIEW is_student AS SELECT sno,sname,sage FROM student WHERE sdpt='is'; B: CREATE VIEW is_student SELECT sno,sname,sageFROM WHERE sdpt='is'; C: CREATE VIEW is_student AS select sno,sname,sage FROM WHERE sdpt='is' D: CREATE VIEW is_student AS SELECT sno,sname,sage WHERE sdpt='is';

向信息系学生视图IS_STUDENT中插入一个新的学生记录，其中，学号0002，姓名为王二小，年龄为16岁，正确的SQL语句是( )。 A: INSERT INTO IS_STUDENT B: VALUES('0002'，'王二小'，16) C: INSERT INTO IS_STUDENT D: VALUES(0002，'王二小'，16) E: SELECT INTO IS_STUDENT F: VALUES(0002，王二小，16) G: SELECT INTO IS_STUDENT H: VALUES('0002'，'王二小'，16)

【单选题】使用命令添加用户student,设置密码为student,然后使用命令删除该用户。 A. useradd student passwd student userdel student B. useradd student passwd student sudo userdel student C. useradd student sudo passwd student sudo userdel student D. su root useradd student passwd student userdel student

‏删除数据表student的命令是________。‏ A: drop table student; B: drop student; C: delete table student; D: drop student;

VBA中打开“student”表的语句是( )。 A: Docmd．OpenForm”student” B: Docmd．OpenQuery"student" C: Docmd．OpenTable"student" D: Docmd．Openreport"student"

【单选题】定义一个学生类Student,则初始化一个学生对象的语句是( A. Student s ； B. Student s = new Student(); C. Student s = new student(); D. Student s = s.student();

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 ();

Given that Student is a class, how many reference variables and objects are created by the following code? Student studentName, studentId; studentName = new Student(); Student stud_class = new Student();

用于删除数据表student正确的语句是： A: drop student B: delete student C: drop database student D: drop table student

Li Ting is a ______. A: first-year student B: second-year student C: third-year student