SQL query from a database named `c2_bi

SQL query from a database named `c2_bi.speed_mktp_eu5_dolla`. It defines `fx_rate_eur` as a selection of currency codes and their associated exchange rates. Each `UNION ALL SELECT` statement adds a new currency and rate pair to the result. Currencies include 'SGD', 'BRL', 'PLN', 'EGP', 'NGN', 'GBP', 'ZAR', 'EUR', 'AED', 'AUD', 'SEK', 'CAD', 'USD', 'MXN', 'SAR', 'INR', 'JPY' and 'TRY'. Another query involving `country_mapping` follows.