CREATE TABLE table_66478 ("City of license" CLOB, "Identifier" CLOB, "Frequency" CLOB, "Power" CLOB, "Class" CLOB, "RECNet" CLOB)

What identifier has 90.3 as the frequency?
SELECT "Identifier" FROM table_66478 WHERE "Frequency" = '90.3'
SELECT "Identifier" FROM "table_66478" WHERE "Frequency" = '90.3'