Oye el delete me quedo asi:
$sql = ("delete from contabilizacioncp
where numdoc = $numdoc && codcuenta Not in ('11100506','11100507','11100508','11100509','1110 0510','11100511',
'11100512','11100513','11100514','11100515','11100 526'");
$respu = mysql_query($sql); mysql_close();
Pero no me elimina nada .... Que estara pasando ....
