最近在做一个几百万条数据的分页查询，研究了各种方案，在本机上用项目的实际数据库做测试，测试过程 is very 痛苦，不堪回首ing。现在废话不多说，直接上结果，相信这也是大多数搜索答案的人最愿意看的方式。
以下是存储过程的代码：
代码如下:
CREATE PROCEDURE [dbo].[P_GridViewPager] (
@recordTotal INT OUTPUT,--输出记录总数
@viewName VARCHAR(800),--表名
@fieldName VARCHAR(800) = '*',--查询字段
@keyName VARCHAR(200) = 'Id',--索引字段
@pageSize INT = 20,--每页记录数
@pageNo INT =1,--当前页
@orderString VARCHAR(200),--排序条件
@whereString VARCHAR(800) = '1=1' --WHERE条件
)
AS
BEGIN
DECLARE @beginRow INT
DECLARE @endRow INT
DECLARE @tempLimit VARCHAR(200)
DECLARE @tempCount NVARCHAR(1000)
DECLARE @tempMain VARCHAR(1000)
--declare @timediff datetime set nocount on
--select @timediff=getdate() --记录时间 SET @beginRow = (@pageNo - 1) * @pageSize + 1
SET @endRow = @pageNo * @pageSize
SET @tempLimit = 'rows BETWEEN ' + CAST(@beginRow AS VARCHAR) +' AND '+CAST(@endRow AS VARCHAR) --输出参数为总记录数
SET @tempCount = 'SELECT @recordTotal = COUNT(*) FROM (SELECT '+@keyName+' FROM '+@viewName+' WHERE '+@whereString+') AS my_temp'
EXECUTE sp_executesql @tempCount,N'@recordTotal INT OUTPUT',@recordTotal OUTPUT --主查询返回结果集
SET @tempMain = 'SELECT * FROM (SELECT ROW_NUMBER() OVER (order by '+@orderString+') AS rows,'+@fieldName+' FROM '+@viewName+' WHERE '+@whereString+') AS main_temp WHERE '+@tempLimit --PRINT @tempMain
EXECUTE (@tempMain)
--select datediff(ms,@timediff,getdate()) as 耗时 set nocount off
END
@recordTotal INT OUTPUT,--输出记录总数
@viewName VARCHAR(800),--表名
@fieldName VARCHAR(800) = '*',--查询字段
@keyName VARCHAR(200) = 'Id',--索引字段
@pageSize INT = 20,--每页记录数
@pageNo INT =1,--当前页
@orderString VARCHAR(200),--排序条件
@whereString VARCHAR(800) = '1=1' --WHERE条件
)
AS
BEGIN
DECLARE @beginRow INT
DECLARE @endRow INT
DECLARE @tempLimit VARCHAR(200)
DECLARE @tempCount NVARCHAR(1000)
DECLARE @tempMain VARCHAR(1000)
--declare @timediff datetime set nocount on
--select @timediff=getdate() --记录时间 SET @beginRow = (@pageNo - 1) * @pageSize + 1
SET @endRow = @pageNo * @pageSize
SET @tempLimit = 'rows BETWEEN ' + CAST(@beginRow AS VARCHAR) +' AND '+CAST(@endRow AS VARCHAR) --输出参数为总记录数
SET @tempCount = 'SELECT @recordTotal = COUNT(*) FROM (SELECT '+@keyName+' FROM '+@viewName+' WHERE '+@whereString+') AS my_temp'
EXECUTE sp_executesql @tempCount,N'@recordTotal INT OUTPUT',@recordTotal OUTPUT --主查询返回结果集
SET @tempMain = 'SELECT * FROM (SELECT ROW_NUMBER() OVER (order by '+@orderString+') AS rows,'+@fieldName+' FROM '+@viewName+' WHERE '+@whereString+') AS main_temp WHERE '+@tempLimit --PRINT @tempMain
EXECUTE (@tempMain)
--select datediff(ms,@timediff,getdate()) as 耗时 set nocount off
END
GO
