CREATE TABLE accelerator_compatible_browser (accelerator_id DECIMAL, browser_id DECIMAL, compatible_since_year DECIMAL)
CREATE TABLE browser (id DECIMAL, name TEXT, market_share DECIMAL)
CREATE TABLE web_client_accelerator (id DECIMAL, name TEXT, operating_system TEXT, client TEXT, connection TEXT)

Which accelerator name contains substring 'Opera'?
SELECT name FROM web_client_accelerator WHERE name LIKE "%Opera%"
SELECT "name" FROM "web_client_accelerator" WHERE "name" LIKE "%Opera%"