ALTER TABLE genbank.rrna_function ADD FOREIGN KEY (id) REFERENCES genbank.rrna(id) ON DELETE CASCADE;
ALTER TABLE genbank.rrna_names ADD FOREIGN KEY (id) REFERENCES genbank.rrna(id) ON DELETE CASCADE;
ALTER TABLE genbank.rrna_note ADD FOREIGN KEY (id) REFERENCES genbank.rrna(id) ON DELETE CASCADE;
