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February 26, 2016 08:56
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Mysql sample query finding points with distanse from current coords 500m
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| -- 55.88846600 = current latitude | |
| -- 37.44916300 = current longitude | |
| SELECT Title, ROUND( 6371000 * acos( cos( radians('55.88846600') ) * cos( radians( Lat ) ) * cos( radians( Lng ) - radians('37.44916300') ) + sin( radians('55.88846600') ) * sin( radians( Lat ) ) ) ) AS distance FROM Points HAVING distance < 500 OR distance IS NULL ORDER BY distance LIMIT 1 |
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