SQL Server - kéo X bản ghi ngẫu nhiên cho mỗi trạng thái

Sử dụng:

WITH sample AS (
 SELECT t.*,
        ROW_NUMBER() OVER (PARTITION BY t.state
                               ORDER BY NEWID()) AS rank
   FROM ZIPCODES t)
SELECT s.*
  FROM sample s
 WHERE s.rank <= 5