Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'like' select count(*) from ins_bbs48 where writer like('%ç¿%') OR email like('%ç¿%') OR homepage like('%ç¿%') OR subject like('%ç¿%') OR contents like('%ç¿%') OR count like('%ç¿%') OR userfile like('%ç¿%') OR topic like('%ç¿%') OR homepage2 like('%ç¿%') OR topic2 like('%ç¿%') OR name2 like('%ç¿%') OR homepage3 like('%ç¿%') OR topic3 like('%ç¿%') OR name3 like('%ç¿%') OR homepage4 like('%ç¿%') OR topic4 like('%ç¿%') OR name4 like('%ç¿%') OR homepage5 like('%ç¿%') OR topic5 like('%ç¿%') OR name5 like('%ç¿%') OR name_list like('%ç¿%') OR homepage6 like('%ç¿%') OR topic6 like('%ç¿%') OR name6 like('%ç¿%') OR homepage7 like('%ç¿%') OR topic7 like('%ç¿%') OR name7 like('%ç¿%') OR homepage8 like('%ç¿%') OR topic8 like('%ç¿%') OR name8 like('%ç¿%') OR homepage9 like('%ç¿%') OR topic9 like('%ç¿%') OR name9 like('%ç¿%') OR homepage10 like('%ç¿%') OR topic10 like('%ç¿%') OR name10 like('%ç¿%')