A Qui, 2004-02-05 às 14:51, Kris Jurka escreveu:
> On 5 Feb 2004, Carlos Correia wrote:
>
> > Is there any way of obtaining a list of the constraints (table
> > constraints and column constraints) of a table? I mean, other then the
> > foreign key's description (getImportedKeys and getExportedKeys)?
> >
>
> You get retrive NOT NULL constraints by checking the NULLABLE column in
> DatabaseMetaData.getColumns(). If you are referring to check constraints
> the only way to retrieve that is by manually querying the system catalogs,
> although 7.4 has a view information_schema.check_constraints which makes
> this easy. JDBC doesn't have any concept of theses constraints because
> there is no portable way of representing them.
>
> Kris Jurka
>
thanks, if it's not portable i'll try not to use it by now ...
carlos
