Thomas wrote: > have tested further combinations - without success - any other > idea? > [attempts to use Java parameter list for PostgreSQL OUT parameters] My guess is that for a single PostgreSQL OUT parameter you should make your Java function return a value of that type and omit the parameter from the Java function signature. PostgreSQL implements OUT parameters in a different way from what I've seen in other products: a single OUT parrameter is the same as specifying the type in the RETURNS for the function. Specifying multiple OUT parameters returns a record with matching fields. That always seems odd to me, but at this point it is very unlikely to change. -Kevin -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general