select distinct wr_parent from g4_write_7070 where ((INSTR(wr_2, '듅由ъ젣떒')) and (INSTR(wr_2, '寃쎌쟾렪李ъ쐞썝쉶')) ) and (wr_num between '-12' and '9988')

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

error file : /bbs/board.php