怎么区分内部成本与外部成本

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select * from tbl_Articles WHERE ArticleID=130373 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=130373 LIMIT 0,1
select * from tbl_Articles_sphinx where id=130373 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1059781,1126150,1092804,1004983,1132059,1071247,1072875,1067213,1125189,1080557,1116717,1306928,1052425,1064105,1110301,1099857,1128067,1099353,1089626,1062208,1299000,1049046,1123493,1056734,1089150,1116433,1089658,1108464,1096711,1118503) ORDER BY field (ArticleID,1059781,1126150,1092804,1004983,1132059,1071247,1072875,1067213,1125189,1080557,1116717,1306928,1052425,1064105,1110301,1099857,1128067,1099353,1089626,1062208,1299000,1049046,1123493,1056734,1089150,1116433,1089658,1108464,1096711,1118503)