的得地有什么区别都在什么时候使用

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select * from tbl_Articles WHERE ArticleID=1104009 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1104009 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1104009 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1045464,1078847,1051331,1081865,1096156,1123376,1011371,1126444,1112024,1064403,1077661,1114500,1275225,1086682,1103845,1103483,1085092,1128663,1125610,1128103,986059,1043963,1122408,1005389,1370581,1062166,1128455,1111598,1129713,1084255) ORDER BY field (ArticleID,1045464,1078847,1051331,1081865,1096156,1123376,1011371,1126444,1112024,1064403,1077661,1114500,1275225,1086682,1103845,1103483,1085092,1128663,1125610,1128103,986059,1043963,1122408,1005389,1370581,1062166,1128455,1111598,1129713,1084255)