和与的区别在哪里

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select * from tbl_Articles WHERE ArticleID=1119281 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1119281 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1119281 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1147264,1120739,1119902,1119127,1100589,1121546,3173084,1108582,1116097,1466972,365452,3495936,583676,1105725,2469706,1108922,1180548,588538,514412,2337267,1021654,1905428,1811731,1146694,1101627,1187936,1099461,100461,1087093,671016) ORDER BY field (ArticleID,1147264,1120739,1119902,1119127,1100589,1121546,3173084,1108582,1116097,1466972,365452,3495936,583676,1105725,2469706,1108922,1180548,588538,514412,2337267,1021654,1905428,1811731,1146694,1101627,1187936,1099461,100461,1087093,671016)