On Wed, Oct 27, 2004 at 05:59:46PM +0200, Pierre-Fr?d?ric Caillaud wrote:
>
> - add CHECK( test_array( yourcolumn )) in your table definition
> - create function test_array which takes an array and looks if all
> its elements are in your table T2, I do something like comparing the
> length of the array to SELECT count(1) FROM T2 WHERE key IN array
This provides only partial foreign key checking: depending on how
the application works, you might also need to ensure that updates
and deletes in T2 don't break the references in T1.
--
Michael Fuhr
http://www.fuhr.org/~mfuhr/
