select wr_id, wr_subject from g4_write_notice where wr_is_comment = 0 and wr_num = '-3' and wr_reply < '' and ca_name = '공\\\\\' order by wr_num desc, wr_reply desc limit 1

1267 : Illegal mix of collations (euckr_korean_ci,IMPLICIT) and (utf8_general_ci,COERCIBLE) for operation '='

error file : /bbs/board.php