1的负二分之一次方等于多少

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select * from tbl_Articles WHERE ArticleID=486719 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=486719 LIMIT 0,1
select * from tbl_Articles_sphinx where id=486719 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1053584,1102674,1066020,1117914,1109132,1072314,1113471,1116877,1086122,1055361,1087133,1086530,1095598,1103895,1073832,1091625,1095828,1042815,1100889,1096531,1097575,1110113,1097283,1110027,1089237,1109669,1103602,1096611,1071119,1084667) ORDER BY field (ArticleID,1053584,1102674,1066020,1117914,1109132,1072314,1113471,1116877,1086122,1055361,1087133,1086530,1095598,1103895,1073832,1091625,1095828,1042815,1100889,1096531,1097575,1110113,1097283,1110027,1089237,1109669,1103602,1096611,1071119,1084667)