形式训练说所涉及的迁移本质上是（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32288' and id < 2569561 and id<>'2569561' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32288' and id > 2569561 and id<>'2569561' order by id asc limit 5