SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g5_write_notice WHERE ca_name = '���ֱ�����' and (wr_num between -500 and (-500 + 10000))

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

error file : /bbs/board.php