基本的ER图由哪些元素构成

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select * from tbl_Articles WHERE ArticleID=1333989 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1333989 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1333989 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1059901,1093865,1092868,1088670,1045755,1069505,1092225,1105087,1075710,1061374,1103971,1068708,1062756,1074843,1102690,1070284,1061892,1110273,1071131,1098401,1068264,1071941,1044306,1056798,1113413,1103700,1102470,1080072,1053874,1110031) ORDER BY field (ArticleID,1059901,1093865,1092868,1088670,1045755,1069505,1092225,1105087,1075710,1061374,1103971,1068708,1062756,1074843,1102690,1070284,1061892,1110273,1071131,1098401,1068264,1071941,1044306,1056798,1113413,1103700,1102470,1080072,1053874,1110031)