Using javascript

You should use ajax call to access server side methods from client side. :)
Some what like below:

$.ajax({
    url:"/CONTROLLER/ACTION",
    type:"GET" //since you are fetching(POST if you are posting/sending data to server),
    success: function(data){ //here data is the records fetched from db/server
                $("#ANYID").html(data);
        }
});

This would help you access database from javascript. Remember by default ajax call is asynchronous, to make it synchronous add 
async:false inside ajax call.
I hope this helps.
Thanks.

Hi,

You can use Ajax method to access your Data Access Layer, which in turn access data base.