Question

I’m trying to write a query that extracts and transforms data from a table and then inserts into another table. It is working if I add string but when I add variable it doesn’t. It gave me empty table!

function dodb() {

    var name = document.getElementsByName('prezime');
    var elements = document.getElementsByName('bt');

    for (var i = 0; i <= elements.length; i++) {
        var oelements = elements[i];
        oelements.onclick = (function(){
        var name1 = name[i].firstChild.nodeValue;
        return function() {
            db.transaction(function (tx) {
                var a = "INSERT INTO racersA SELECT * FROM racers WHERE prezime=%name1%";
                tx.executeSql(a);
            });
        }
        })(i);
    }
}

Answer 1

You didn’t put any variables into your SQL, so since its simple Javascript you need to concatenate your variable with your string

Should be

var a = "INSERT INTO racersA SELECT * FROM racers WHERE prezime='" + name1 + "'";