数据量暂时在10来万，排序字段是几个索引里面的一个索引的二级索引
第一方案是比较传统的，
第二方案用了表变量，有说数据量大的时候应该用临时表，不知道这个量要多少。
感觉。。
DECLARE @pagesize int
DECLARE @pageindex int
DECLARE @docount bit
DECLARE @this_id INT
SET @this_id = 114
SET @docount = 3
SET @pagesize = 10
set @pageindex = 11983
--select count(*) from wn_pARTSnEWS where NEWSCLASSid=@this_id
-- where NEWSCLASSid=@this_id
--方案一
BEGIN
select TOP 10 * from wn_partsNews where partsNewsId not in (SELECT TOP 119830 PARTSNEWSID FROM WN_PARTSNEWS ORDER BY ADDTIME DESC) ORDER BY ADDTIME DESC
END
--方案二
begin
declare @indextable table(id int identity(1,1),nid int)
declare @PageLowerBound int
declare @PageUpperBound int
set @PageLowerBound=(@pageindex-1)*@pagesize --开始
set @PageUpperBound=@PageLowerBound+@pagesize --结束
set rowcount @PageUpperBound
insert into @indextable(nid) select PARTSNEWSid from WN_PartsNews order by ADDTIME desc
select a.* from WN_PartsNews a,@indextable t where a.PARTSNEWSID=t.nid and t.id>@PageLowerBound and t.id<=@PageUpperBound order by t.id
end
GO
DECLARE @pageindex int
DECLARE @docount bit
DECLARE @this_id INT
SET @this_id = 114
SET @docount = 3
SET @pagesize = 10
set @pageindex = 11983
--select count(*) from wn_pARTSnEWS where NEWSCLASSid=@this_id
-- where NEWSCLASSid=@this_id
--方案一
BEGIN
select TOP 10 * from wn_partsNews where partsNewsId not in (SELECT TOP 119830 PARTSNEWSID FROM WN_PARTSNEWS ORDER BY ADDTIME DESC) ORDER BY ADDTIME DESC
END
--方案二
begin
declare @indextable table(id int identity(1,1),nid int)
declare @PageLowerBound int
declare @PageUpperBound int
set @PageLowerBound=(@pageindex-1)*@pagesize --开始
set @PageUpperBound=@PageLowerBound+@pagesize --结束
set rowcount @PageUpperBound
insert into @indextable(nid) select PARTSNEWSid from WN_PartsNews order by ADDTIME desc
select a.* from WN_PartsNews a,@indextable t where a.PARTSNEWSID=t.nid and t.id>@PageLowerBound and t.id<=@PageUpperBound order by t.id
end
GO