string strSelect="SELECT baseeight.filename,baseeight.section_name,baseeight.category_name,baseeight.section_code,baseeight.category_code,copyline.signature,copyline.[section],copyline.brandcode,copyline.[desc],copyline.[date] FROM baseeight INNER JOIN copyline ON baseeight.section_code=copyline.[section] AND baseeight.category_code=copyline.category WHERE copyline.sinature>'"+temp+"'";便用显式关联(INNER JOIN [left join][right join)即可行。
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