CREATE TABLE table_name_2 (erp_w VARCHAR2, frequency_mhz NUMBER)

What's the sum of ERP W with a Frequency MHz that larger than 97.7?
SELECT COUNT(erp_w) FROM table_name_2 WHERE frequency_mhz > 97.7
SELECT COUNT("erp_w") FROM "table_name_2" WHERE "frequency_mhz" > 97.7