For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!
SELECT * FROM
(SELECT * FROM TABLE1) a
FULL JOIN
(SELECT * FROM TABLE2) b
ON a.ID = b.ID;
and this worked. But,
(SELECT * FROM TABLE3) c
ON a.ID = b.ID = c.ID;
this doesn't work.