function getFormSubmitTime(){
 var form = FormApp.openById('dfsjfeifcnxzc121ii3ZZy');
 var formResponses = form.getResponses();
 var formResponse = formResponses[formResponses.length-1];
 var gettime = formResponse.getTimestamp();
}

function myonFormSubmit(e)
{
    var ts=e.values[0];
    runQuery("INSERT INTO `TABLENAME` (`timestamp`,....) VALUES ('ts')");
}


function runQuery(qry)//This is pretty bare bones as it has no error handling built in.  I removed it from a much more complicated function. Which you can find in the link in the text below.
{
    var address='address';
    var user='user';
    var userPwd='pass';
    var db='db';
    var dbUrl='jdbc:mysql://' + address + '/' + db;
    var conn=Jdbc.getConnection(dbUrl, user, userPwd);
    var stmt=conn.prepareStatement(qry)
    stmt.execute();
}