什么叫总起句

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select * from tbl_Articles WHERE ArticleID=839208 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=839208 LIMIT 0,1
select * from tbl_Articles_sphinx where id=839208 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1131271,1049170,1074340,1069125,1067901,1063467,1051283,1089008,1083971,1071341,1086120,1086376,1066812,1028715,1057028,1090310,1062963,1085052,1060875,1071701,1074409,1077826,1079227,156284,1053224,1065155,1073437,1071243,1070614,1085310) ORDER BY field (ArticleID,1131271,1049170,1074340,1069125,1067901,1063467,1051283,1089008,1083971,1071341,1086120,1086376,1066812,1028715,1057028,1090310,1062963,1085052,1060875,1071701,1074409,1077826,1079227,156284,1053224,1065155,1073437,1071243,1070614,1085310)