求select 在线等

[森之树]

用TSQL在Sql Server 2005中实现分页获取查询结果

[--小F--]

使用SQL Server 2005中新增的ROW_NUMBER 

几种写法分别如下： 

  

SELECT TOP 20 * FROM (SELECT
   ROW_NUMBER() OVER (ORDER BY Namec) AS RowNumber,
   *
FROM
   dbo.mem_member) _myResults
WHERE
   RowNumber > 10000 

SELECT * FROM (SELECT
   ROW_NUMBER() OVER (ORDER BY Namec) AS RowNumber,
   *
FROM
   dbo.mem_member) _myResults
WHERE
   RowNumber between 10000 and 10020
WITH OrderedResults AS 

(SELECT *, ROW_NUMBER() OVER (order by Namec) as RowNumber FROM dbo.mem_member) 

SELECT * 

FROM OrderedResults 

WHERE RowNumber between 10000 and 10020
不管哪种写法，性能都不理想。在8,9万条数据的情况下要运行6秒左右。
2、使用临时表再加存储过程
BEGIN
                DECLARE @PageLowerBound int
                DECLARE @PageUpperBound int
                
                -- Set the page bounds
                SET @PageLowerBound = 10000
                SET @PageUpperBound = 10020 

                -- Create a temp table to store the select results
                Create Table #PageIndex
                (
                    [IndexId] int IDENTITY (1, 1) NOT NULL,
                    [Id] varchar(18) 
                )
                
                -- Insert into the temp table
                declare @SQL as nvarchar(4000) 
                SET @SQL = 'INSERT INTO #PageIndex (Id)'
                SET @SQL = @SQL + ' SELECT'
                SET @SQL = @SQL + ' TOP ' + convert(nvarchar, @PageUpperBound)
                SET @SQL = @SQL + ' m_id'
                SET @SQL = @SQL + ' FROM dbo.mem_member'
                SET @SQL = @SQL + ' ORDER BY NameC'
                
                -- Populate the temp table 
                exec sp_executesql @SQL 

                -- Return paged results
                SELECT O.*
                FROM
                    dbo.mem_member O,
                    #PageIndex PageIndex
                WHERE
                    PageIndex.IndexID > @PageLowerBound
                    AND O.[m_Id] = PageIndex.[Id]
                ORDER BY 
                    PageIndex.IndexID 




                
drop table #PageIndex            
                END
而使用这种方法，在同样的情况下用时只需1秒。 

看样子，row_number是个鸡肋。 

3、如果觉得临时表不好，还可以使用SET ROWCOUNT 

 
begin
DECLARE @first_id varchar(18), @startRow int
    
SET ROWCOUNT 10000
SELECT @first_id = m_id FROM mem_member ORDER BY m_id 

SET ROWCOUNT 20 

SELECT m.* 
FROM mem_member m
WHERE m_id >= @first_id
ORDER BY m.m_id 

SET ROWCOUNT 0
end
不过，这种方法有缺点。按ID排序就快，按其他字段排序就慢。

[喜-喜]

--参考....
--sql server中分页获取数据的存储过程 
CREATE PROCEDURE dbo.xp_GetPage 
( 
    @sql varchar(1000), 
    @page int = 1, 
    @pageSize int = 20, 
    @needCount bit = 1 
) 
AS 
    SET NOCOUNT ON 
    DECLARE @P1 int    --P1是游标的id 
 
    SET @page = (@page-1) * @pagesize + 1 
    EXEC sp_cursoropen @P1 output,@sql 
    EXEC sp_cursorfetch @P1, 16, @page, @pagesize 
    EXEC sp_cursorclose @P1 
 
    --上面的就够了，下面的代码是为了统计总记录条数 
     select @RowCount 
GO 

[森之树]

还有 连接sql的代码 ，没用户的那种

[zhengduan964532]

查询第X页,每页Y条记录

最基本的处理方法(原理):

如果表中有主键(记录不重复的字段也可以),可以用类似下面的方法,当然y,(x-1)*y要换成具体的数字,不能用变量:

select top y * from 表 where 主键 not in(select top (x-1)*y 主键 from 表)



如果表中无主键,可以用临时表,加标识字段解决.这里的x,y可以用变量.

select id=identity(int,1,1),*  into #tb from 表
select * from #tb where id between (x-1)*y and x*y-1

[xk1126]

DECLARE @i SMALLINT SET @i = 1 WHILE (@i <=100) BEGIN INSERT INTO SalesHistory (Product, SaleDate, SalePrice) VALUES ('Computer', DATEADD(mm, @i, '3/11/1919'), DATEPART(ms, GETDATE()) + (@i + 57) ) INSERT INTO SalesHistory (Product, SaleDate, SalePrice) VALUES ('BigScreen', DATEADD(mm, @i, '3/11/1927'), DATEPART(ms, GETDATE()) + (@i + 13) ) INSERT INTO SalesHistory (Product, SaleDate, SalePrice) VALUES ('PoolTable', DATEADD(mm, @i, '3/11/1908'), DATEPART(ms, GETDATE()) + (@i + 29) ) SET @i = @i + 1 END

[htl258_Tony]

http://blog.csdn.net/htl258/archive/2009/09/22/4580094.aspx