如何理解回转交易

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select * from tbl_Articles WHERE ArticleID=3334046 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3334046 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3334046 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1554823,1633355,239505,401714,1614030,1128603,1647151,1051677,1045901,1052065,680547,223818,303560,136110,1614842,2858151,310305,309011,1642459,1066426,1083030,214157,266178,1112632,1720900,252954,1285433,1090396,1366406,1130366) ORDER BY field (ArticleID,1554823,1633355,239505,401714,1614030,1128603,1647151,1051677,1045901,1052065,680547,223818,303560,136110,1614842,2858151,310305,309011,1642459,1066426,1083030,214157,266178,1112632,1720900,252954,1285433,1090396,1366406,1130366)