Query regarding Intersect clause

Sir,

I have created the following tables,

Create table abc (srno int, name varchar(32))
Create table def (srno int, name varchar(32))

abc
srno name
1 Aaaa
2 Bbbb

def
srno name
1 Aaaa
2 Cccc

each having two tuples.

If I run the following query I get the following result.
(Select name from abc) intersect (select name from def)

Srno Name
1 Aaaa

If I run the following query I get the following result.
(Select name from abc) intersect all (select name from def)

Srno Name
1 Aaaa

I think result of INTERSECT ALL query may be :

Srno Name
1 Aaaa
1 Aaaa

Because intersect all clause returns the duplicate values.
Please tell me I am wrong or correct.

Thank you in anticipation.

--
Sincerely,
Ajit Pradnyavant.
Email:- ajit(dot)pradnyavant(at)gmail(dot)com
Phone No. 7385758326