如何从多个数据库中提取数据

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select * from tbl_Articles WHERE ArticleID=2634464 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2634464 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2634464 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1062130,815873,2026858,1106348,1567297,789440,1114476,1129993,2591446,1083540,1122956,1129153,1127027,1055081,1588585,1128299,1121206,1120205,1107006,1058415,1062866,1126630,1534359,1123409,463652,1114136,1132081,1132449,1640117,1110277) ORDER BY field (ArticleID,1062130,815873,2026858,1106348,1567297,789440,1114476,1129993,2591446,1083540,1122956,1129153,1127027,1055081,1588585,1128299,1121206,1120205,1107006,1058415,1062866,1126630,1534359,1123409,463652,1114136,1132081,1132449,1640117,1110277)