下面变量中属于顺序变量的是（ ）。[中央财经大学2012研]

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30461' and id < 2461087 and id<>'2461087' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30461' and id > 2461087 and id<>'2461087' order by id asc limit 5