How to get xml attribute with plsql?

Question

create table xtest01(col1 xmltype);
insert into xtest01 values ('<car><model>Audi TT</model></car>');
insert into xtest01 values ('<car model="BMW X5"/>');

-- I know how to get Audi TT:

select x.col1.extract('//car/model/text()').getStringVal() from xtest01 x;

-- But how to get BMW X5?

Answer 1

select x.col1.extract('//car/@model').getStringVal() from xtest01 x;