求线段长度的几种常用方法

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select * from tbl_Articles WHERE ArticleID=668174 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=668174 LIMIT 0,1
select * from tbl_Articles_sphinx where id=668174 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1105087,1074618,1062488,1063213,1068264,1092656,1097779,1084667,1095011,1100667,1101629,1065713,1091625,1099089,1096719,1057710,1047441,1114166,1032968,1077533,1069741,1100639,1050395,1042815,1063021,1064173,1094771,1054136,1083113,1093154) ORDER BY field (ArticleID,1105087,1074618,1062488,1063213,1068264,1092656,1097779,1084667,1095011,1100667,1101629,1065713,1091625,1099089,1096719,1057710,1047441,1114166,1032968,1077533,1069741,1100639,1050395,1042815,1063021,1064173,1094771,1054136,1083113,1093154)