/*取表中5--8條資料*/
select top 4 employeeid from dbo.employees where employeeid not in(
select top 4 employeeid from dbo.employees order by employeeid asc)
select top 4 employeeid from
(select top 8 employeeid from dbo.employees order by employeeid asc) a
order by employeeid desc
--identity(int)是在臨時表上面新增一列用於標示原來的非連續的記錄
--這種情況是原來的表中沒有identity列
select identity(int) id0,* into #tmp1 from yo
select * from #tmp1 where id0>=5 and id0<=8
--identitycol是乙個關鍵字
select * from yo where identitycol between 5 and 8
--利用差集
select top 8 * from yo
except
select top 4 * from yo
--資料庫分頁
declare @pagesize int
declare @pageindex int
set @pagesize=4
set @pageindex=2
select top (@pagesize) yoid from yo where yoid not in
(select top (@pagesize*(@pageindex-1)) yoid from yo order by yoid)
order by yoid
declare @pagesize int
declare @pageindex int
set @pagesize=4
set @pageindex=2
select top (@pagesize) yoid from yo
where yoid >
(select isnull(max(yoid),0) from
(select top (@pagesize*(@pageindex-1)) yoid from yo order by yoid) a ) order by yoid
--08/05平台上使用;另乙個排序的是rank() over 是乙個跳躍排序
--這樣的程式在面對資料量大的情況下可以使用
declare @pagesize int
declare @pageindex int
set @pagesize=4
set @pageindex=2
select top (@pagesize) * from
(select row_number() over (order by yoid) as rownumber,* from yo) a
where rownumber>(@pagesize*(@pageindex-1))
declare @pagesize int
declare @pageindex int
set @pagesize=4
set @pageindex=2
select * from
(select row_number() over (order by yoid) as rownum,* from yo) as y
where rownum between (@pagesize*(@pageindex-1))+1 and (@pagesize*@pageindex)
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