プログラマーと熱狂的なプログラマーのためのサイトに関する質問と回答
--SELECT top 10 p1.id, p1.parentid, p2.id, p2.parentid FROM Posts p1, Posts p2 --WHERE p1.id=p2.parentid select count(*), id from comments group by id having count(*)>1 --SELECT max(score) as maxscore, creationdate, postid --FROM comments --Group by postid, creationdate