一除零等于多少为什么

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select * from tbl_Articles WHERE ArticleID=1978504 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1978504 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1978504 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1108141,1112058,2783158,1045346,3152322,1130394,1112086,1118264,1101641,1104033,2681759,2460281,1044609,1063229,1132367,120918,623158,1304908,1298135,1131747,1129269,1956644,1087475,1121252,3411308,2236476,1098569,1132817,1130414,1372281) ORDER BY field (ArticleID,1108141,1112058,2783158,1045346,3152322,1130394,1112086,1118264,1101641,1104033,2681759,2460281,1044609,1063229,1132367,120918,623158,1304908,1298135,1131747,1129269,1956644,1087475,1121252,3411308,2236476,1098569,1132817,1130414,1372281)