[프로그래머스SQL]조건에 맞는 사용자 정보 조회하기

-- 코드를 입력하세요
SELECT 
UGU.USER_ID, UGU.NICKNAME, 
CONCAT(CITY,' ',STREET_ADDRESS1, ' ', STREET_ADDRESS2) AS 전체주소 , 
CONCAT_WS("-", LEFT(UGU.TLNO, 3), SUBSTRING(UGU.TLNO, 4, 4), RIGHT(UGU.TLNO, 4)) AS 전화번호 
FROM USED_GOODS_USER AS UGU
JOIN USED_GOODS_BOARD AS UGB
ON UGU.USER_ID = UGB.WRITER_ID
GROUP BY UGB.WRITER_ID
HAVING COUNT(UGB.WRITER_ID) >= 3
ORDER BY UGU.USER_ID DESC