text: --insert/update/delete bind
  
  create class xoo ( a int, b int);;
  
  $int, $10, $int, $1
  insert into xoo values(?, ?);
  
  $int, $100, $int, $1;
  update xoo set a = a + ? where b = ?; 
  select * from xoo;
  
  $int, $100, $varchar, $1;
  update xoo set a = a + ? where b = ?; 
  select * from xoo;
  
  $int, $1, $varchar, $1;
  update xoo set a = a + decode(?, 100, 0, -1) where b = to_number(?); 
  select * from xoo;
  
  $int, $1;
  delete from xoo where b = ?;
  
  select * from xoo;
  
  drop xoo;
  