select and null

I have a table and want to print out all entries that are not Null ...

select * from test;
 entry
-------
 1
 2
 3

(4 rows)

select * from test where entry=Null;
 entry
-------

(1 row)

select * from test where entry<>Null;
 entry
-------
(0 rows)


select * from test except select * from test where entry=Null;
 entry
-------
(0 rows)


What is my brain missing here ???

thanks,
peter


--
mag. peter pilsl
email: pilsl@goldfisch.at
pgp-key available