create foreign key

I try to create a foreign constraint on a table but the data
of the table is "bad". so how can I "disable" the constraint when I create it.

thansk in advance

Just add the word 'disable' as the last thing
before your semi-colon or '/' in your command
to create the constraint.

do I have to enable later? (even with bad records)

thanks

sorry, my quesiton should be:

how I enable the constriant without correct those bad records

thanks

I think you can say

alter constraint .... enable novalidate;

to make it only check for rows you will add in the future
and ignore rows that are there already. I have never
tried this though so I could be wrong about it. Just look
in the oracle documentation in the SQL reference section
under 'alter constraint'.

-John

thanks, I got the syntax and it works:

alter table tblname enable novalidate CONSTRAINT constname;