select distinct wr_parent from g4_write_3020 where ca_name = '어학교재' and ((INSTR(wr_2, '옄:')) and (INSTR(wr_2, '씠닚떊,')) and (INSTR(wr_2, '뿭옄:')) and (INSTR(wr_2, '삱젆')) and (INSTR(wr_2, '굪濡쒖ㅈ瑗')) ) and (wr_num between '-83' and '9917')

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

error file : /bbs/board.php