title: laravel getting error on using alias in joins 4.1
body: <p>Getting error as ORA-00905: missing keyword Position in laravel 4.1</p>
  
  <blockquote>
    <p>->leftjoin('table1','table1.portid','=','ordertable.order_id')</p>
    
    <p>->leftjoin('table2 as  dep','dep.portid','=','ordertable.departure')</p>
    
    <p>->leftjoin('table2 as arr','arr.portid','=','ordertable.arrival')</p>
  </blockquote>
  
  <p>On using alias for join 2(table2 as  dep) and 3 (table2 as arr) getting error, Can Someone let me know where I have to use as, am I correct with the syntax V4.1</p>