学步园

select * from(

selsect a.*.rownum rc

from(

select * from goods order by goods_type asc

)     a where roenum<=endrow

) b where rc>=startrow

DB2

select * from
(select rownumber() over() as rc,a.*

from( select * from goods_type asc))

as a where rc between startrow and endrow

SQL Server 2000

select top perpagesize * from table where
(id not in(select top perpagesize*intpage id from table order by id))
order by id

SQL Server 2005

select * from
(

select id,ROW_NUMBER() OVER(order by iname)

as curr from table

)     as t where t.curr>=startrow and t.curr<=endrow

MySQL

select * from goods limit startrow perpagesize
startrow为起始行，perpagesize为每页显示数量

建立表：

CREATE TABLE [TestTable] (
 [ID] [int] IDENTITY (1, 1) NOT NULL ,
 [FirstName] [nvarchar] (100) COLLATE Chinese_PRC_CI_AS NULL ,
 [LastName] [nvarchar] (100) COLLATE Chinese_PRC_CI_AS NULL ,
 [Country] [nvarchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,
 [Note] [nvarchar] (2000) COLLATE Chinese_PRC_CI_AS NULL 
) ON [PRIMARY]
GO

插入数据：(2万条，用更多的数据测试会明显一些)

SET IDENTITY_INSERT TestTable ON

declare @i int
set @i=1
while @i<=20000
begin
     insert into TestTable([id], FirstName, LastName, Country,Note)
values(@i, 'FirstName_XXX','LastName_XXX','Country_XXX','Note_XXX')
     set @i=@i+1
end

SET IDENTITY_INSERT TestTable OFF

分页方案一：

(利用Not In和SELECT TOP分页)

语句形式：

SELECT TOP 10 *
FROM TestTable
WHERE (ID NOT IN
           (SELECT TOP 20 id
          FROM TestTable
          ORDER BY id))
ORDER BY ID

SELECT TOP 页大小 *
FROM TestTable
WHERE (ID NOT IN
           (SELECT TOP 页大小*页数 id
          FROM 表
          ORDER BY id))
ORDER BY ID

分页方案二：

(利用ID大于多少和SELECT TOP分页）

语句形式：

SELECT TOP 10 *
FROM TestTable
WHERE (ID >
           (SELECT MAX(id)
          FROM (SELECT TOP 20 id
                  FROM TestTable
                  ORDER BY id) AS T))
ORDER BY ID

SELECT TOP 页大小 *
FROM TestTable
WHERE (ID >
           (SELECT MAX(id)
          FROM (SELECT TOP 页大小*页数 id
                  FROM 表
                  ORDER BY id) AS T))
ORDER BY ID

分页方案三：

(利用SQL的游标存储过程分页)

create   procedure XiaoZhengGe
@sqlstr nvarchar(4000), --查询字符串
@currentpage int, --第N页
@pagesize int --每页行数
as
set nocount on
declare @P1 int, --P1是游标的id
 @rowcount int
exec sp_cursoropen @P1 output,@sqlstr,
@scrollopt=1,@ccopt=1,@rowcount=@rowcount output
select ceiling(1.0*@rowcount/@pagesize) 
as 总页数--,@rowcount as 总行数,@currentpage as 当前页 
set @currentpage=(@currentpage-1)*@pagesize+1
exec sp_cursorfetch @P1,16,@currentpage,@pagesize 
exec sp_cursorclose @P1
set nocount off

其它的方案：如果没有主键，可以用临时表，也可以用方案三做，但是效率会低。

建议优化的时候，加上主键和索引，查询效率会提高。

通过SQL 查询分析器，显示比较：我的结论是:

分页方案二：(利用ID大于多少和SELECT TOP分页）效率最高，需要拼接SQL语句。

分页方案一：(利用Not In和SELECT TOP分页)效率次之，需要拼接SQL语句。

分页方案三：(利用SQL的游标存储过程分页)效率最差，但是最为通用。