对比的作用有什么

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select * from tbl_Articles WHERE ArticleID=2041923 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2041923 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2041923 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(86122,1089594,1102102,678070,1094319,1103123,2999217,1114162,940835,371737,100714,1101311,1225024,369239,1111528,2674200,86169,1106611,1087723,1114802,1108355,161621,1098137,376015,1115227,400588,1113135,838481,3508404,1122701) ORDER BY field (ArticleID,86122,1089594,1102102,678070,1094319,1103123,2999217,1114162,940835,371737,100714,1101311,1225024,369239,1111528,2674200,86169,1106611,1087723,1114802,1108355,161621,1098137,376015,1115227,400588,1113135,838481,3508404,1122701)