WHAT ARE THE BROWSERS LISTED IN THE TABLE
select name from browser
WHICH BROWSER IS COMPATIBLE WITH ACCELERATOR 'CPROXY' AFTER YEAR 1998
select t1.name from browser as t1 join accelerator_compatible_browser as t2 on t1.id = t2.browser_id join web_client_accelerator as t3 on t2.accelerator_id = t3.id where t3.name = 'CProxy' and t2.compatible_since_year > 1998
WHAT IS THE BROWSER ID OF OPERA
select t1.id from browser as t1 join accelerator_compatible_browser as t2 on t1.id = t2.browser_id join web_client_accelerator as t3 on t2.accelerator_id = t3.id where t1.name = "Opera"