En CTE er kun god til én forespørgsel, men det ser ud til, at du kan bruge en CTE i hver forespørgsel:
WITH ds AS
(
Select a, b, c from test1
)
Select * from ds (the result set of ds, am exporting this to csv)
WITH xy AS
(
select d,e,f from test2 where (uses conditions from test1)
)
Insert into AuditTest
(
Select * from xy
)