java 异常
我的SQL报异常：java.sql.SQLException: Parameter index out of range (3 > number of parameters, which is 2).
下面是我的SQL语句：String sql="select * from product where mprice bettwean ? and ? , cname like '%?%' ";请高手帮下忙看看哪里错了！

[解决办法]
select * from product where mprice bettwean ? and ? , cname like '%?%'
like 写法错误

select * from product where mprice bettwean ? and ? , cname like ?
like的值要写成ps.setString("%查询值%")