小弟遇到一个小问题,请教高手赐教,谢谢! select a.dwcdh,b.dwmc,count(a.grcdh) as cdrs from gr_cd a,dw_xx b,dw_cd c where a.dwid=b.dwid and a.dwid=c.dwid and a.dwid<>'0000000000' and a.flag<>'1' and
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