-- Database schema
| Web_client_accelerator : id [ INT ] primary_key , name [ TEXT ] , Operating_system [ TEXT ] , Client [ TEXT ] , Connection [ TEXT ] | browser : id [ INT ] primary_key , name [ TEXT ] , market_share [ INT ] | accelerator_compatible_browser : accelerator_id [ INT ] primary_key accelerator_compatible_browser.accelerator_id = Web_client_accelerator.id , browser_id [ INT ] accelerator_compatible_browser.browser_id = browser.id , compatible_since_year [ INT ] |
-- -- 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;