改进的意思是什么

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select * from tbl_Articles WHERE ArticleID=550944 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=550944 LIMIT 0,1
select * from tbl_Articles_sphinx where id=550944 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1099443,928497,1880098,1002318,1094497,482601,1113113,1117085,499655,850318,1093212,1119714,161621,913804,583002,1055248,582023,781981,1088914,1106942,396551,771974,1117900,365832,1122400,1085232,2792107,1085532,989152,1048147) ORDER BY field (ArticleID,1099443,928497,1880098,1002318,1094497,482601,1113113,1117085,499655,850318,1093212,1119714,161621,913804,583002,1055248,582023,781981,1088914,1106942,396551,771974,1117900,365832,1122400,1085232,2792107,1085532,989152,1048147)