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[mysql] 2개 테이블에서 중복된거라도 한개씩만 추출하기

select count( a.mb_id ) AS cnt,a.mb_id, b.mb_nick, b.mb_name, b.mb_email, b.mb_homepage, b.mb_open, a.lo_ip, a.lo_location, a.lo_url
from g4_login a left join g4_member b on (a.mb_id = b.mb_id)

GROUP BY a.mb_id
HAVING cnt >=1

order by a.lo_datetime desc<div class='small'>[이 게시물은 관리자님에 의해 2011-10-31 17:27:00 MySQL에서 이동 됨]</div>
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감사합니다.^^
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