多个（每页）与单个（静态/全局）数据库连接

I'm working on a Asp.Net website. Currently, I'm creating (and closing) a db connection per page (on load). But I'm not sure, that is the true way. I wonder, if I create a db connection in a static class or WebApplication's main Global.asax, may it be better than creating db connections per page?I'm working on a Asp.Net website. Currently, I'