扩展性很好的一个分页存储过程分析

发布时间：2021-12-25 00:53:14 所属栏目：MsSql教程来源：互联网

导读：这是经常用的一个分页存储过程希望大家指点不足复制代码代码如下: USE [a6756475746] GO /****** Object: StoredProcedure [dbo].[tbl_order_SearchWhereAndPage] Script Date: 11/01/2011 09:37:39 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER O

这是经常用的一个分页存储过程希望大家指点不足
复制代码代码如下:

USE [a6756475746]
GO
/****** Object: StoredProcedure [dbo].[tbl_order_SearchWhereAndPage] Script Date: 11/01/2011 09:37:39 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER PROCEDURE [dbo].[tbl_order_SearchWhereAndPage]
@AllCount int OUTPUT,
@PageIndex int,
@PageSize int ,
@minDate datetime,
@maxDate datetime
AS
begin
DECLARE @PageLower int
set @PageLower=@PageSize * @PageIndex
DECLARE @PageUpper int
set @PageUpper= @PageLower + @PageSize - 1

DECLARE @SearchSQL nvarchar(4000)
set @SearchSQL='SELECT * ,( ROW_NUMBER() OVER (ORDER BY [ID] DESC) -1 ) AS RowNumber FROM tbl_order WHERE (1=1) '
DECLARE @SearchSQLCount nvarchar(4000)
set @SearchSQLCount='SELECT @count=Count(*) FROM tbl_order WHERE (1=1) '
declare @Result [varchar](5000)
set @Result=''

if @minDate>convert(datetime,'1900-1-2')
begin
set @Result=@Result+' and oDeliveryDate >= '''+convert(varchar(20),@minDate)+''''
end
if @maxDate > convert(datetime,'1900-1-2')
begin
set @Result=@Result+' and oDeliveryDate <= '''+convert(varchar(20),dateadd(dd,1,@maxDate))+''''
end
set @SearchSQLCount=@SearchSQLCount+@Result
set @SearchSQL=@SearchSQL+@Result

SET @SearchSQL = 'WITH t AS (' + @SearchSQL +' )
SELECT * FROM t
WHERE [RowNumber] BETWEEN '+ convert(varchar(50),@PageLower) +' AND '+ convert(varchar(50),@PageUpper) + '
ORDER BY RowNumber '

exec (@SearchSQL)

exec sp_executesql @SearchSQLCount ,N'@count as int out' ,@AllCount out

print @SearchSQL

print @AllCount
end
exec (@Result)

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