CREATE TABLE "oklahoma_counties_ranked_by_per_capita_i" (
  "county" text,
  "per_capita_income" text,
  "median_household_income" text,
  "median_family_income" text,
  "population" real,
  "number_of_households" real
);

Question: How many households are in Ottawa?
SQL: SELECT SUM("number_of_households") FROM "oklahoma_counties_ranked_by_per_capita_i" WHERE "county"='ottawa';

Question: What county has a population more than 603,403 and a mediuan family income of $61,694?
SQL: SELECT "county" FROM "oklahoma_counties_ranked_by_per_capita_i" WHERE "population">'603,403' AND "median_family_income"='$61,694';