下面 语句和”select * from student where sex=’男’ && age=20;”语句查询出的结果是一样的。（ ） A: select * from student where sex=’男’ or age=20; B: select * from student where sex=’男’ || age=20; C: select * from student where sex=’男’ and age=20; D: select * from student where sex,age in(’男’,20);

查询年龄在20到23岁之间的学生的信息，所使用的语法命令为（） A: select * from student where age between 20 to 23 B: select * from student where age from 20 to 23 C: select * from student where age between 20 and 23 D: select * from student

查询年龄不在20到23岁之间的学生的信息，所使用的语法命令为（） A: select * from student where age not between 20 and 23 B: select * from student where age between 20 and 23 C: select * from student where age not between 20 to 23 D: select * from student where not age from 20 to 23

从Student表检索年龄为20岁的学生信息，已知年龄字段是数值类型，最规范的SQL语句是( )。 A: Select * From Student where Sage=20 B: Select * From Student where Sage='20' C: Select * From Student where Sage=【20】 D: Select * From Student where Sage EQUAL 20

在学生信息表中，查询年龄在18岁到20岁的学生姓名和年龄，正确的SQL语句是（）。 A: select sn,agefrom swhere age between 18 and 20 B: select sn,agefrom swhere age>=18 and age<=20 C: select sn,agefrom swhere age>18 and age<20 D: select sn,agefrom swhere age>=18 or sAge<=20

在学生表STUD中查询所有小于20岁的学生的姓名(XM)及其年龄(SA) 。实现该功能的正确SQL语句是______。 A: SELECT XM,SA FROM STUD FOR SA＜20 B: SELECT XM,SA FROM STUD WHERE NOT SA＞＝20 C: SELECT XM,SA ON STUD FOR SA＜20 D: SELECT XM,SA ON STUD WHERE SA＜20

下面哪条语句可以查询姓“张”并且年龄等于20岁的用户，请问用哪条语句？ A: Select * From table Where name like "%张%" And intAge=20 B: Select * From table Where name like "张%" And intAge=20 C: Select * From table Where name like "张%" And intAge="20" D: Select * From table Where name="张" And intAge=20

下面哪一条语句是正确的() A: select from b B: select sno from a where sno 2000 C: select * from a order by sno where age>20 D: select * from B group by cno where cno>1

查看年龄为20的所有人的记录，SQL语句为（） A:  SELECT * FROM CUSTOMERS WHERE AGE=20 B:  DROP FROM CUSTOMERS WHERE AGE=20 C:  SELECT FROM CUSTOMERS WHERE AGE=20 D:  DELETE  FROM CUSTOMERS WHERE CUSTID=5

‏下列SQL语句，_____________可以在“学生-课程”数据库正确实现“查询年龄在20-23岁（包括20岁和23岁）之间的学生的姓名、系别和年龄”。‍ A: SELECT Sname，Sdept，SageFROM StudentWHERE Sage BETWEEN 20 AND 23 B: SELECT Sname，Sdept，SageFROM StudentWHERE Sage 20 AND 23 C: SELECT Sname，Sdept，SageFROM StudentWHERE Sage >=20 AND <=23 D: SELECT Sname，Sdept，SageFROM StudentWHERE Sage NOT BETWEEN 20 AND 23