A Query Question

[selenin]

Hi

I make a query to a database, normally it gives back a 0, now I want that the script keeps in touch with the database till the row gives back one. Till now I made it with a setInterval and went through the function again and again, but I think it's not really good for the database. Can't the function wait in the query till comes back a 1 and then doing something? Here is what I got so far:

 

    function latestCheckFB()

 

    {

 

 

var query = FB.Data.query('SELECT uid FROM page_fan WHERE page_id = 164524456919432 AND uid = 100001762758708');

 

    query.wait(function (rows) {

 

        if (rows.length > 0) { // like found

 

        var msg = "you like it";

        $("#halloA").text(msg);     

 

        }else{

        var msg = "you do not like it";

        $("#halloA").text(msg);   

}

 

    });

 

 

    }

 

   

 

      setInterval(function() {

 

          latestCheckFB();

 

        }, 100);