CREATE TABLE county (county_id DECIMAL, county_name TEXT, population DECIMAL, zip_code TEXT)
CREATE TABLE election (election_id DECIMAL, counties_represented TEXT, district DECIMAL, delegate TEXT, party DECIMAL, first_elected DECIMAL, committee TEXT)
CREATE TABLE party (party_id DECIMAL, year DECIMAL, party TEXT, governor TEXT, lieutenant_governor TEXT, comptroller TEXT, attorney_general TEXT, us_senate TEXT)

Show the zip code of the county with name 'Howard'.
SELECT zip_code FROM county WHERE county_name = "Howard"
SELECT "zip_code" FROM "county" WHERE "Howard" = "county_name"