MySQL DELETE con due INNER JOIN

[optime]

devi fare tre delete

delete ute_uni from ute_uni inner join unita on ute_uni.uniid=unita.uniid inner join scale on unita.scaid=scale.palid where scale.palid = '".$palid."'";
delete unita from unita inner join scale on unita.scaid=scale.palid where scale.palid = '".$palid."'";
delete scale where scale.palid = '".$palid."'";

scritte a occhio... provale prima con una select

facce sape'