一中同表是什么意思

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select * from tbl_Articles WHERE ArticleID=3208552 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3208552 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3208552 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1108662,1097857,476851,1114422,491956,365728,392969,388179,365250,396591,427867,1101311,428753,453045,441267,494399,475496,1091922,1097945,1113323,1121708,417724,1102750,3013329,1106148,414364,1103216,1381604,1114296,1304858) ORDER BY field (ArticleID,1108662,1097857,476851,1114422,491956,365728,392969,388179,365250,396591,427867,1101311,428753,453045,441267,494399,475496,1091922,1097945,1113323,1121708,417724,1102750,3013329,1106148,414364,1103216,1381604,1114296,1304858)