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DROP PROCEDURE IF EXISTS build_test_data;

DELIMITER #
CREATE PROCEDURE build_test_data()

  BEGIN
    DECLARE v_max INT UNSIGNED DEFAULT 20;
    DECLARE v_counter INT UNSIGNED DEFAULT 0;

    START TRANSACTION;
    WHILE v_counter < v_max DO
      INSERT INTO `np_customer_coin` (`customer_id`, `detail`, `type`, `coin`, `create_time`, `modified_time`, `create_user`)
      VALUES
        (2278, '12', '1', v_counter, '2016-07-28 13:46:37', '0000-00-00 00:00:00', 'admin');
      SET v_counter = v_counter + 1;
    END WHILE;

    COMMIT;
  END #

DELIMITER ;

CALL build_test_data();

SELECT *
FROM np_customer_coin
ORDER BY id;