CREATE TABLE table_63184 ("City of license" TEXT, "Identifier" TEXT, "Frequency" TEXT, "Power" TEXT, "Class" TEXT, "RECNet" TEXT)

What's the frequency when the identifier is cbf-fm-9?
SELECT "Frequency" FROM table_63184 WHERE "Identifier" = 'cbf-fm-9'
SELECT "Frequency" FROM "table_63184" WHERE "Identifier" = 'cbf-fm-9'