在SQL Server 2000、2005、2008、2012中分页结果的最佳方法(性能方面)是什么?如果你还想获得结果的总数(在分页之前)?


当前回答

试试这个方法:

SELECT TOP @offset a.*
FROM (select top @limit b.*, COUNT(*) OVER() totalrows 
        from TABLENAME b order by id asc) a
ORDER BY id desc;

其他回答

http://www.codeproject.com/KB/aspnet/PagingLarge.aspx上有关于不同分页技术的很好的概述

我经常在SQL Server 2000中使用ROWCOUNT方法(也可以在2005和2008中使用,只测量与ROW_NUMBER相比的性能),它的速度非常快,但你需要确保排序的列(大多数)具有唯一的值。

对于ROW_NUMBER技术,如果你没有一个排序列,你可以使用CURRENT_TIMESTAMP,如下所示:

SELECT TOP 20 
    col1,
    col2,
    col3,
    col4
FROM (
    SELECT 
         tbl.col1 AS col1
        ,tbl.col2 AS col2
        ,tbl.col3 AS col3
        ,tbl.col4 AS col4
        ,ROW_NUMBER() OVER (
            ORDER BY CURRENT_TIMESTAMP
            ) AS sort_row
    FROM dbo.MyTable tbl
    ) AS query
WHERE query.sort_row > 10
ORDER BY query.sort_row

对于我来说,这种方法在搜索表大小甚至高达700,000的情况下效果很好。

这将获取记录11到30。

   CREATE view vw_sppb_part_listsource as 
    select row_number() over (partition by sppb_part.init_id order by sppb_part.sppb_part_id asc ) as idx, * from (
      select 
          part.SPPB_PART_ID
          , 0 as is_rev
          , part.part_number 
          , part.init_id 
      from t_sppb_init_part part 
      left join t_sppb_init_partrev prev on ( part.SPPB_PART_ID = prev.SPPB_PART_ID )
      where prev.SPPB_PART_ID is null 
      union 
      select 
          part.SPPB_PART_ID
          , 1 as is_rev
          , prev.part_number 
          , part.init_id 
      from t_sppb_init_part part 
      inner join t_sppb_init_partrev prev on ( part.SPPB_PART_ID = prev.SPPB_PART_ID )
    ) sppb_part

当涉及到不同的init_id时会重新启动idx吗

试试这个方法:

SELECT TOP @offset a.*
FROM (select top @limit b.*, COUNT(*) OVER() totalrows 
        from TABLENAME b order by id asc) a
ORDER BY id desc;

用例方面,以下内容似乎易于使用和快速。只需设置页码。

use AdventureWorks
DECLARE @RowsPerPage INT = 10, @PageNumber INT = 6;
with result as(
SELECT SalesOrderDetailID, SalesOrderID, ProductID,
ROW_NUMBER() OVER (ORDER BY SalesOrderDetailID) AS RowNum
FROM Sales.SalesOrderDetail
where 1=1
)
select SalesOrderDetailID, SalesOrderID, ProductID from result
WHERE result.RowNum BETWEEN ((@PageNumber-1)*@RowsPerPage)+1
AND @RowsPerPage*(@PageNumber)

同样没有CTE

use AdventureWorks
DECLARE @RowsPerPage INT = 10, @PageNumber INT = 6
SELECT SalesOrderDetailID, SalesOrderID, ProductID
FROM (
SELECT SalesOrderDetailID, SalesOrderID, ProductID,
ROW_NUMBER() OVER (ORDER BY SalesOrderDetailID) AS RowNum
FROM Sales.SalesOrderDetail
where 1=1
 ) AS SOD
WHERE SOD.RowNum BETWEEN ((@PageNumber-1)*@RowsPerPage)+1
AND @RowsPerPage*(@PageNumber)