如何计算以下回潮率

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select * from tbl_Articles WHERE ArticleID=1857206 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1857206 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1857206 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(377104,1469932,1447784,430555,1095850,2686269,2416620,2071115,153870,2187923,2506739,2085145,2907741,2981882,304444,239155,783854,1065001,1358420,2404009,2408826,1317597,3097212,3031896,1670628,1841268,291264,1092752,709815,1129029) ORDER BY field (ArticleID,377104,1469932,1447784,430555,1095850,2686269,2416620,2071115,153870,2187923,2506739,2085145,2907741,2981882,304444,239155,783854,1065001,1358420,2404009,2408826,1317597,3097212,3031896,1670628,1841268,291264,1092752,709815,1129029)