ALTER TABLE profile_langskills ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE profile_medals ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE profile_mentor ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE profile_mentor_country ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE profile_mentor_sector ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE profile_langskills ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE profile_medals ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE profile_mentor ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE profile_mentor_country ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE profile_mentor_sector ADD FOREIGN KEY (pid) REFERENCES profiles (pid) ON DELETE CASCADE ON UPDATE CASCADE;