SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_QnA WHERE ((INSTR(LOWER(wr_subject), LOWER('D008'))>0) and (INSTR(LOWER(wr_subject), LOWER('Pro'))>0) and (INSTR(wr_subject, '臾댐옙0占�0')>0) ) and (wr_num between '-119234' and '-109234')
Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate' : 1267