ALTER TABLE ADD CONSTRAINT

Hi all,

  I do it in table synop:

ALTER TABLE synop
ADD CONSTRAINT estacoes_fk
FOREIGN KEY (id_estacao)
REFERENCES estacoes

Then I check the DDL and it is like this:
....
CONSTRAINT estacoes_fk FOREIGN KEY (id_estacao, id_estacao) REFERENCES
estacoes (id_estacao, id_estacao)
....

- Why id_estacao is duplicated????
- id_estacao is the only column in pk of estacoes.

Tks

--
Jose Roberto M. Garcia, MSc
Systems Analist - Database Group
Voice: (12) 3186-8405
--
http://www.cptec.inpe.br
http://www.inpe.br