保留整数应该精确到哪一位

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select * from tbl_Articles WHERE ArticleID=2910247 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2910247 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2910247 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(260634,215328,1126164,142260,174329,203556,1099193,1075684,166614,1275346,231295,121426,2567458,170504,2871838,258141,685292,1100587,1128645,1131281,1091332,1121374,1103718,1769162,1093625,234452,193093,1113381,3040044,1077138) ORDER BY field (ArticleID,260634,215328,1126164,142260,174329,203556,1099193,1075684,166614,1275346,231295,121426,2567458,170504,2871838,258141,685292,1100587,1128645,1131281,1091332,1121374,1103718,1769162,1093625,234452,193093,1113381,3040044,1077138)