select distinct wr_parent from g4_write_B13 where ((INSTR(wr_subject%7C%7Cwr_content, '��ï¿\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\½')) ) and (wr_num between '-556' and '9444')

1054 : Unknown column '7C' in 'where clause'

error file : /bbs/board.php