怎么样正确降档

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select * from tbl_Articles WHERE ArticleID=1523749 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1523749 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1523749 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(971241,1112359,3276623,1040256,633953,1177030,2003133,3067299,601418,1511261,3065908,3143918,2882563,1869746,1102910,3258908,2339865,473760,1777928,757451,2862963,1585497,973321,2272933,975404,1303024,1627787,2482974,1141236,404982) ORDER BY field (ArticleID,971241,1112359,3276623,1040256,633953,1177030,2003133,3067299,601418,1511261,3065908,3143918,2882563,1869746,1102910,3258908,2339865,473760,1777928,757451,2862963,1585497,973321,2272933,975404,1303024,1627787,2482974,1141236,404982)