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报表中的group前半部分可以用,后半部分不能用,这是什么原因 SQL语句:- SELECT p.part part,p.name NAME,p.point POINT,r.ID ID,r.c c,rt.TWA TWA,rt.STEL STEL ,s.TWA sTWA,s.STEL sSTEL ,r.test test,r.SN sn FROM point_name p left JOIN(result r left JOIN (report rt LEFT JOIN samp_gbz s ON rt.test = s.name)ON r.SN = rt.SN AND r.test = rt.test) ON p.point = rt.point where p.SN = 'HKZJ170056' and r.SN = 'HKZJ170056'
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