what are the ids and names of the web accelerators that are compatible with two or more browsers?
select t1.id, t1.name from web_client_accelerator as t1 join accelerator_compatible_browser as t2 on t2.accelerator_id = t1.id group by t1.id having count ( * ) > = 2
how many browser id?
select count ( distinct browser_id ) from accelerator_compatible_browser
what are using CProxy in Operating system?
select operating_system from web_client_accelerator where name = "CProxy"
yes
select name from web_client_accelerator where operating_system = "Appliance ( linux ) "