5选3有多少种组合

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select * from tbl_Articles WHERE ArticleID=2561262 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=2561262 LIMIT 0,1
select * from tbl_Articles_sphinx where id=2561262 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1080303,1126222,1126740,1049958,1110522,1127415,285070,1057641,110219,1065849,1050455,312384,1126577,1126034,195778,1100352,1130332,1077730,1128553,1066170,1078735,1129001,1097621,253978,1117498,1129181,1065441,1096443,1093396,1122098) ORDER BY field (ArticleID,1080303,1126222,1126740,1049958,1110522,1127415,285070,1057641,110219,1065849,1050455,312384,1126577,1126034,195778,1100352,1130332,1077730,1128553,1066170,1078735,1129001,1097621,253978,1117498,1129181,1065441,1096443,1093396,1122098)