select wr_id, wr_subject from g4_write_earlyliteracy where wr_is_comment = 0 and wr_num = '-90' and wr_reply < '' and ((INSTR(wr_2, '첼')) (INSTR(wr_2, '트')) ) order by wr_num desc, wr_reply desc limit 1

1064 : 'SQL 구문에 오류가 있습니다.' 에러 같읍니다. ('(INSTR(wr_2, '트')) ) order by wr_num desc, wr_reply desc limit 1' 명령어 라인 1)

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