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();
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();
查询学生信息表student和中相关简单信息。(1)查询课程表subject所有在学期ID(gradeId)为1课程名称(subjectName)(2)查询学生信息表student所有在学期ID(gradeId)为2的所有男同学(sex)的姓名(studentName)和住址(address)(3)查询学生信息表student无电子邮件(email)的学生姓名(studentName)和年级信息(gradeID)
查询学生信息表student和中相关简单信息。(1)查询课程表subject所有在学期ID(gradeId)为1课程名称(subjectName)(2)查询学生信息表student所有在学期ID(gradeId)为2的所有男同学(sex)的姓名(studentName)和住址(address)(3)查询学生信息表student无电子邮件(email)的学生姓名(studentName)和年级信息(gradeID)
INSERT INTO student(studentname,gender,age) VALUES(#{sname}, #{sex}, #{age}) </insert> 在insert标签中,命名空间唯一标识符的属性是_______,取出由数据库内部生成主键的属性是___________,keyProperty属性的作用是________
INSERT INTO student(studentname,gender,age) VALUES(#{sname}, #{sex}, #{age}) </insert> 在insert标签中,命名空间唯一标识符的属性是_______,取出由数据库内部生成主键的属性是___________,keyProperty属性的作用是________
1.查询学生信息表student和课程表subject中相关简单信息。(1)查询学生信息表student所有在学期ID(gradeId)为1的全部学生信息。(2)查询学生信息表student所有在学期ID(gradeId)为2的全部学生的姓名(studentName)和电话(phone)。(3)查询学生信息表student所有在学期ID(gradeId)为1的全部女同学(sex)的信息。(4)查询课程表subject中课时(classHour)超过60的课程信息。2.查询学生信息表student和中相关简单信息。(1)查询课程表subject所有在学期ID(gradeId)为1课程名称(subjectName)(2)查询学生信息表student所有在学期ID(gradeId)为2的所有男同学(sex)的姓名(studentName)和住址(address)(3)查询学生信息表student无电子邮件(email)的学生姓名(studentName)和年级信息(gradeID)
1.查询学生信息表student和课程表subject中相关简单信息。(1)查询学生信息表student所有在学期ID(gradeId)为1的全部学生信息。(2)查询学生信息表student所有在学期ID(gradeId)为2的全部学生的姓名(studentName)和电话(phone)。(3)查询学生信息表student所有在学期ID(gradeId)为1的全部女同学(sex)的信息。(4)查询课程表subject中课时(classHour)超过60的课程信息。2.查询学生信息表student和中相关简单信息。(1)查询课程表subject所有在学期ID(gradeId)为1课程名称(subjectName)(2)查询学生信息表student所有在学期ID(gradeId)为2的所有男同学(sex)的姓名(studentName)和住址(address)(3)查询学生信息表student无电子邮件(email)的学生姓名(studentName)和年级信息(gradeID)
中国大学MOOC: 在SQL Server中,创建存储过程如下:要在Students表中查找Age(年龄)是18岁的学生,( )可以正确的调用这个存储过程。[选两项] CREATE PROCEDURE MyP1 @p Int As SELECT Studentname,Age FROM Student WHERE Age=@p
中国大学MOOC: 在SQL Server中,创建存储过程如下:要在Students表中查找Age(年龄)是18岁的学生,( )可以正确的调用这个存储过程。[选两项] CREATE PROCEDURE MyP1 @p Int As SELECT Studentname,Age FROM Student WHERE Age=@p