在链式査询方式下，若有/V个设备，则 。

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29991' and id < 2430520 and id<>'2430520' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29991' and id > 2430520 and id<>'2430520' order by id asc limit 5