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网上给出的计算公式是这样的:
select *,(2 * 6378.137* ASIN(SQRT(POW(SIN(PI()*(111.86141967773438-lng)/360),2)+COS(PI()*33.07078170776367/180)* COS(lat * PI()/180)*POW(SIN(PI()*(33.07078170776367-lat)/360),2)))) as juli from `area` order by juli asc limit 0,20
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原文地址:http://www.cnblogs.com/rnckty/p/5498764.html