按信息编码、存储和提取方式把记忆分为（ ）。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30476' and id < 2461680 and id<>'2461680' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30476' and id > 2461680 and id<>'2461680' order by id asc limit 5