Select count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '51000' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '50900' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '50800' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '50700' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '50600' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '50500' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '50400' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '50300' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '50200' and c_category='공지사항' order by c_regist descSelect count(c_no) as comment from Gn_Board_Comm_bbs21 where c_bno = '50100' and c_category='공지사항' order by c_regist desc