数据库的几种查询数值的方式
1.
select age
from test
where age >=10;
2.where age<>10
3.where age<=10;
4.where age between 10 and 20;
5.where age!=10;
6.where age like '1__'; 查询百位数为1的数值
复习总结旧知识
数据库的几种查询数值的方式
1.
select age
from test
where age >=10;
2.where age<>10
3.where age<=10;
4.where age between 10 and 20;
5.where age!=10;
6.where age like '1__'; 查询百位数为1的数值
复习总结旧知识