--视图V_test:
select a.1,a.2,a.3,b.1,b.2,b.3 from a inner join b on a.0=b.0
--语句1:
Select top 15 * FROM
(
select ROW_NUMBER() Over(order by id) as rowId, * from V_test
where type=123 and zt='测试'
) as tempTable where rowId > 0
--语句2:
Select top 15 * FROM
(
select ROW_NUMBER() Over(order by id) as rowId, * from V_test
where type=123 and zt='测试'
) as tempTable where rowId > 15
--说明,所有相关子段都加了索引,视图数据总量277万。
--语句1瞬间就出来了,语句2接近一分钟才出结果
--查看数据库记录,语句2逻辑读非常高
--为什么?两个语句完全一样,除了最后那个分页起始条件不同!
--求教各路高手不吝赐教啊[img=http://forum.csdn.net/PointForum/ui/scripts/csdn/Plugin/001/face/54.gif][/img]