교육자료
Software education use coding drone, Coconut-drone.
select distinct wr_parent from g4_write_drone_edu where INSTR(ca_name, '�떆裕щ젅�씠��\�') and (wr_num between '-2' and '9998')
1267 : Illegal mix of collations (utf8_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate'
error file : /gnuboard4/bbs/board.php