예제 쿼리
중복 레코드 갯수 구하기 SELECT rownum, uid, cnt FROM ( select uid, count(uid) cnt from member group by name having count(uid) > 1 ) mysql 에서 ROWNUM SELECT @RNUM:=@RNUM+1 AS ROWNUM , a.* FROM (SELECT @RNUM:=0) R, table a Top 100 순위를 뿌려주는 mysql query를 만들었다. SELECT @RNUM:=@RNUM+1 AS ROWNUM ,a.* FROM (SELECT @RNUM:=0) R, ( select a.account, sum(score) as score from table1 a where a.account = b.account group b..