的得地三个字的用法有啥不同

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select * from tbl_Articles WHERE ArticleID=1090494 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1090494 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1090494 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(3108368,672401,1164672,3249670,2865890,3262487,1743627,760082,1304718,1118118,1117085,100898,486027,1970711,1116329,1737308,358415,3527748,1303492,3392280,2989853,2577379,3333697,975111,2509051,1118579,3475715,705114,1103196,566891) ORDER BY field (ArticleID,3108368,672401,1164672,3249670,2865890,3262487,1743627,760082,1304718,1118118,1117085,100898,486027,1970711,1116329,1737308,358415,3527748,1303492,3392280,2989853,2577379,3333697,975111,2509051,1118579,3475715,705114,1103196,566891)