A、Select*FromStudentWhereLeft(姓名,1)="王"
B、Select*FromStudentWhere姓名Like"王*"
C、Select*FromStudentWhere姓名="王*"
D、Select*FromStudentWhere姓名In"王"
A、Select*FromStudentWhereLeft(姓名,1)="王"
B、Select*FromStudentWhere姓名Like"王*"
C、Select*FromStudentWhere姓名="王*"
D、Select*FromStudentWhere姓名In"王"
对考生文件夹下的“student”表、“course”表和“score”表f进行如下操作:
(1)用SQL语句查询“成绩”在80分以上(包括80分)的学生姓名,并将结果按学号升序存入表文件“resuh.dbf”中,将SQL语句保存在考生文件夹下的“result.txt”文本中。
(2)使用表单向导制作一个表单。要求:选择“student”表中的全部字段,表单样式为“彩色式”,按钮类型为“文本按钮”,排序字段选择“学号”(升序),表单标题为“学生信息浏览”,最后将表单保存为“bd1”。
A.创建一个student表
B.修改student表
C.创建一个查看student表的存储过程
D.查询student
A、Select * from Student where Sno = (Select Sno from SC where Grade >90)
B、Select * from Student where Sno In (Select Sno from SC where Grade >90)
C、Select * from Student where Sno Not In (Select Sno from SC where Grade >90)
D、Select * from Student where Sno Exists (Select Sno from SC where Grade >90)
A、String sql="Select * from Student where Sname="+txtName.getText();
B、String sql="Select * from Student where Sname='"+txtName.getText()+"'";
C、String sql="Select * from Student where Sname like "+txtName.getText();
D、String sql="Select * from Student where Sname like '"+txtName.getText()+"'";
从数据表 student 中查询张姓的所有学生,正确的 SQL语句是()。
A.SELECT sno,sname FROM student WHERE sname LIKE N' 张%'
B.SELECT sname FROM student WHERE sname = N'% 张%'
C.SELECT sno,sname FROM student WHERE sname LIKE N'% 张%'
D.SELECT sname FROM student WHERE sname = N' 张%'
A. Select* From Student Where Age>=20 ANDAge>=30
B. Select* From Student Where Age>=20 ANDAge<=30c. select* from student where age bet wenn 20and30d. select* from student where age>=20&&Age>=30"
A、Select * From STUDENT Where Sdept = '计算机工程' or Gender='女'
B、Delete From STUDENT Where Sdept like '计算机%' and Gender='女'
C、Select * From STUDENT Where Sdept= '计算机工程' and Gender='女'
D、Update STUDENT Set Sdept='计算机工程' Where Gender='女'
A、Select * From Student Where Age>=20 AND Age>=30
B、Select * From Student Where Age>=20 AND Age<=30
C、Select * From Student Where Age>=20 OR Age>=30
D、Select * From Student Where Age>=20 && Age>=30
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