SQL String, Date] 조건에 맞는 사용자 정보 조회하기

SQL String, Date] 조건에 맞는 사용자 정보 조회하기

-- 코드를 입력하세요
SELECT u.USER_ID, 
    u.NICKNAME, 
    CONCAT(u.CITY, ' ',u.STREET_ADDRESS1,' ', u.STREET_ADDRESS2) as 전체주소, 
    CONCAT(SUBSTRING(u.TLNO, 1,3), 
           '-',SUBSTRING(u.TLNO, 4,4), '-', 
           SUBSTRING(u.TLNO, 8) ) as  전화번호
    FROM USED_GOODS_BOARD b
    INNER JOIN USED_GOODS_USER u on b.WRITER_ID = u.USER_ID

    GROUP BY b.WRITER_ID
    HAVING COUNT(b.WRITER_ID) >= 3
    ORDER BY u.USER_ID DESC;