XQuery Update to return values

Hi,

 

The problem I am trying to solve is that with XQuery Update faicility, I
will update an element and at the same time, I want the same element to
be returned. Something like the following:

 

1. update a book element's author 

2. return the updated book element

 

Is there a way to do it in one query instead of two separate queries?
And it looks like update expression does not return anything

 

Thanks,

Emma