완충제로 보내주신 과자도 맛있었습니다.
SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_unbox WHERE ((INSTR(wr_subject, '무�0�0�조�0���0�0�폰�0�0�')>0) )
Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate' : 1267