表观密度和堆积密度的区别

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select * from tbl_Articles WHERE ArticleID=254145 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=254145 LIMIT 0,1
select * from tbl_Articles_sphinx where id=254145 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1084197,1097575,1109669,1062930,1064173,1070692,1091362,1095700,1089040,1078677,1129683,1065469,1087912,1107995,1076029,1132481,1089526,1125104,1097633,1062602,1106232,1082203,1063429,1069505,1083059,1090771,1124955,1047441,1049440,1062062) ORDER BY field (ArticleID,1084197,1097575,1109669,1062930,1064173,1070692,1091362,1095700,1089040,1078677,1129683,1065469,1087912,1107995,1076029,1132481,1089526,1125104,1097633,1062602,1106232,1082203,1063429,1069505,1083059,1090771,1124955,1047441,1049440,1062062)