ETG vs. insert add in parallel (which is faster)?

Hi all

The oracle is 11.2.0.3 on a linux machine.

I would like to know what the most rapid between the ETG and insert add in parallel (not index).

----------------

case A: ETG

create table table_a nologging Parallels 32
as
Select / * + full (t) parallel (32 t) * / *.
of table_b t;

case B: table_a was established in nologgig mode without index.

Insert / * + full (t) parallel (32 t) * / into table_a
Select / * + full (b) parallel (32B) * / *.
of table_b b;

-----------------------

As far as I know, both use "direct path write."
According to my experience, both show similar performance.

I would like to hear your experience which is faster in general and in THEORY.

Thanks in advance.
Best regards.

>
I would like to know what the most rapid between the ETG and insert add in parallel (not index).
. . .
in my test case, the two sql show similar performance.
>
How do you know? You don't post any case INSERT ADD then why don't test you what you posted and we seek clarification?

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