mssql分页

今天在ms sql 里想弄个分页，可是发现mssql 里是没 mysql 里的 limit 函数的，于是在网上找了一些解决的方法，发现这样可以做到。。。

mySql 输入：
select * from table_news order by news_id desc limit 5,4
ms Sql 输出：
select * from ( select top 4 * from ( select top 9 * from table_news order by news_id desc ) as totleResult order by news_id ) as allResult order by news_id desc

其实可以这样认为 vPagesize=10, vPageNo=2, 语句就可以写成：

"select * from ( select top " +vPagesize+ " * from ( select top" + int.Parse(vPageNo * vPagesize)+" * from chenhua_news order by news_id desc ) as totleResult order by news_id/*要注意这里是没有desc的*/ ) as allResult order by news_id desc

***例如我今天写的: 这里的 10 就是指一页显示10条记录, 40 是指这里读取第4页的数据, 而这里还有一个条件就是以c开头的记录 like 'c%'

select vendno,company ,(select count(*) from cust0001 where ltrim(rtrim(status))='U') as countRecords from
( select top 10 vendno,company from (select top 40
vendno,company from cust0001 where ltrim(rtrim(status))='U' and company like 'c%' order by company )
as totleResult order by company desc) as allResult
order by company

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。

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。

SQLServer:
select * from
(
select top @pageSize * from
(
select top (@pageSize*@currentPage) * from page order by _id asc
)t1 order by _id desc
)t2 order by _id asc