since和for的区别用法

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select * from tbl_Articles WHERE ArticleID=2337010 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2337010 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2337010 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1116813,1064645,1043033,1106360,1071481,1103226,1086194,1102437,1118096,1058843,1058867,1080086,1092365,1087879,1057545,1129267,1077621,1091621,1074306,1051711,1083383,1125353,1083208,1101847,1071243,1099121,1063517,1107851,1090937,1106647) ORDER BY field (ArticleID,1116813,1064645,1043033,1106360,1071481,1103226,1086194,1102437,1118096,1058843,1058867,1080086,1092365,1087879,1057545,1129267,1077621,1091621,1074306,1051711,1083383,1125353,1083208,1101847,1071243,1099121,1063517,1107851,1090937,1106647)