SELECT count(*) FROM web_client_accelerator WHERE id NOT IN ( SELECT accelerator_id FROM accelerator_compatible_browser );
How many accelerators are not compatible with the browsers listed ?
SELECT count ( * ) FROM web_client_accelerator WHERE id NOT IN ( SELECT accelerator_id FROM accelerator_compatible_browser ) ;
select count ( * ) from web_client_accelerator where id not in ( select accelerator_id from accelerator_compatible_browser )
How many accelerators are not compatible with the browsers listed ?