Let us discussion "non recursive with clause" usage

Question

I think there are 3 "non recursive with clause" usage.
My question is do you know more "non recursive with clause" usage ?

Answer 1

Another option is to use it to materialize remote data on the fly. Especially in combination with the materialize hint.
I think I used this tecnique once, but can't find the proper example anymore. Very simplified it could looked like this:
with fetchData as (Select /*+materialize */ * from myremoteTable@databaselink where status = 'CURRENT')
select *
from fetchdata r
full outer join localData l on r.id = r.id
where l.status = 'CURRENT'
;From 11g onwards: use the with clause to create better column names in larger select from dual combinations.
Not sure with that results in a suitable use case.
So instead of
with orders as
(select 1 id , 173 order#, 'John' customer, 'America' region from dual union all
  select 2 id , 170 order#, 'Paul' customer, 'UK' region from dual union all
  select 3 id , 240 order#, 'Hans' customer, 'Europe' region from dual union all
  select 4 id , 241 order#, 'Francois' customer, 'Europe' region from dual )
select * from orders;you can now write
with
orders (id, order#, customer,region) as
(select 1 , 173 , 'John' , 'America' from dual union all
  select 2 , 170 , 'Paul' , 'UK' from dual union all
  select 3 , 240 , 'Hans' , 'Europe' from dual union all
  select 4 , 241 , 'Francois' , 'Europe' from dual )
select * from orders;THis makes it a little easier to create tase data useing some excel sheet I guess.