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将子查询转化成连表查询有关问题

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2016-06-13 12:26:091047browse

将子查询转化成连表查询问题
SELECT * FROM (SELECT a.video_name NAME,a.vid,a.pos,a.pic,a.definition,b.app_code,a.strength,a.ad_mark FROM access_app_video a 
LEFT JOIN access_app b ON a.app_id=b.id WHERE tag_interest=2 AND app_id=1 AND a.ad_mark=1 AND a.status=0 ORDER BY ABS(tag_sex-16),ABS(tag_figure-10)) aa 
ORDER BY aa.strength DESC LIMIT 0,12

该子查询如何改为连表查询
------解决思路----------------------

SELECT a.video_name NAME,a.vid,a.pos,a.pic,a.definition,b.app_code,a.strength,a.ad_mark<br />  FROM access_app_video a LEFT JOIN access_app b ON a.app_id=b.id<br />  WHERE tag_interest=2 AND app_id=1 AND a.ad_mark=1 AND a.status=0 <br />  ORDER BY a.strength, ABS(tag_sex-16),ABS(tag_figure-10) DESC<br />  LIMIT 0,12

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