怎样使用示亡号

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select * from tbl_Articles WHERE ArticleID=2116303 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2116303 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2116303 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1910283,1848521,2496135,3049044,1438646,3156245,108401,162035,2480393,107677,3217720,2370438,2638121,3282486,2865402,3020054,3274440,1749597,1436267,1305614,2249104,2391258,174625,2347156,3316171,2242440,332526,896526,1346986,2749700) ORDER BY field (ArticleID,1910283,1848521,2496135,3049044,1438646,3156245,108401,162035,2480393,107677,3217720,2370438,2638121,3282486,2865402,3020054,3274440,1749597,1436267,1305614,2249104,2391258,174625,2347156,3316171,2242440,332526,896526,1346986,2749700)