puede usar la construcción excepto para hacer coincidir las dos consultas.
select * from (select * from query1) as query1
except
select * from (select * from query2) as query2
EDITAR:
Luego invierta la consulta para encontrar diferencias con la consulta 2 como controlador:
select * from (select * from query2) as query2
except
select * from (select * from query1) as query1