计算机工作原理?

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select * from tbl_Articles WHERE ArticleID=1729296 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1729296 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1729296 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1286231,1240070,2632917,1627671,2015181,1084747,1093977,2508563,1110049,1095882,1258176,1107048,1305516,632882,1235850,1225515,1115455,3482380,1105435,1241829,2485552,1255752,1243327,725678,1225068,1107893,2759015,1141144,1107192,1256957) ORDER BY field (ArticleID,1286231,1240070,2632917,1627671,2015181,1084747,1093977,2508563,1110049,1095882,1258176,1107048,1305516,632882,1235850,1225515,1115455,3482380,1105435,1241829,2485552,1255752,1243327,725678,1225068,1107893,2759015,1141144,1107192,1256957)