SELECT COUNT(DISTINCT `wr_parent`) AS `cnt` FROM g4_write_QnA WHERE ((INSTR(wr_subject, '�0��0��0�')>0) ) and (wr_num between '-118101' and '-108101')
Illegal mix of collations (utf8mb3_general_ci,IMPLICIT) and (euckr_korean_ci,COERCIBLE) for operation 'locate' : 1267
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