实用单表千万级分页存储过程二(不敢独享,特此分享)
此存储过程适合所有排序字段,属于通用类型
本存储过程本人做了小修改
/**********************************************************************************************
********************通过指定的条件分页查询数据表【TableName
or
ViewName】记录******************
**********************************************************************************************/
IF
EXISTS (SELECT * FROM dbo.sysobjects WHERE id = object_id
(N'[dbo].[ThePaginationProcedureIsAllPurpose]') AND OBJECTPROPERTY(id,
N'IsProcedure') = 1)
DROP PROCEDURE
[dbo].[ThePaginationProcedureIsAllPurpose]
GO
--参数说明
-------------------------------------------------------------
/*
*
@tblName ----要显示的表或多个表的连接
* @fldName ----要查询出的字段列表,*表示全部字段
*
@pageSize ----每页显示的记录个数
* @page ----要显示那一页的记录
*
@fldSort ----排序字段列表或条件,如:id desc (多个id desc,dt asc)
*
@Sort ----排序方法,0为升序,1为降序
* (如果是多字段排列Sort指代最后一个排序字段的排列顺序(最后一个排序字段
* 不加排序标记)--程序传参如:'
SortA Asc,SortB Desc,SortC ')
* @strCondition ----查询条件,不需where
*
@ID ----主表的主键
* @Dist ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
*
@pageCount ----查询结果分页后的总页数
* @Counts ----查询到的总记录数
*
@UsedTime ----耗时测试时间差
*/
CREATE PROCEDURE
[dbo].[ThePaginationProcedureIsAllPurpose]
(
@tblName
nvarchar(max),
@fldName nvarchar(max) = '*',
@pageSize int =
40,
@page int = 1,
@fldSort nvarchar(max) = null,
@Sort bit =
1,
@strCondition nvarchar(max) = null,
@ID nvarchar(max),
@Dist bit
= 0,
@pageCount int = 1 output,
@Counts int = 1 OUTPUT,
@UsedTime
int OUTPUT
)
AS
SET NOCOUNT ON
Declare @sqlTmp
nvarchar(max) ----存放动态生成的SQL语句
Declare @strTmp
nvarchar(max) ----存放取得查询结果总数的查询语句
Declare @strID
nvarchar(max) ----存放取得查询开头或结尾ID的查询语句
Declare @strSortType
nvarchar(max) ----数据排序规则A
Declare @strFSortType nvarchar(max) ----数据排序规则B
Declare @SqlSelect nvarchar(max) ----对含有DISTINCT的查询进行SQL构造
Declare
@SqlCounts nvarchar(max) ----对含有DISTINCT的总数查询进行SQL构造
Declare @timediff
DATETIME --耗时测试时间差
select @timediff=getdate()
if @Dist = 0
begin
set @SqlSelect = 'select '
set @SqlCounts =
'Count(*)'
end
else
begin
set @SqlSelect = 'select distinct
'
set @SqlCounts = 'Count(DISTINCT '+@ID+')'
end
if @Sort=0
begin
set @strFSortType=' ASC '
set @strSortType='
DESC '
end
else
begin
set @strFSortType=' DESC '
set
@strSortType=' ASC '
end
--------生成查询语句--------
--此处@strTmp为取得查询结果数量的语句
if @strCondition is null or
@strCondition='' --没有设置显示条件
begin
set @sqlTmp = @fldName + ' From
' + @tblName
set @strTmp = @SqlSelect+' @Counts='+@SqlCounts+' FROM '+@tblName
set @strID = ' From ' + @tblName
end
else
begin
set @sqlTmp = + @fldName + 'From ' +
@tblName + ' where (1>0) ' + @strCondition
set @strTmp = @SqlSelect+'
@Counts='+@SqlCounts+' FROM '+@tblName + ' where
(1>0) ' + @strCondition
set @strID = ' From ' + @tblName + ' where
(1>0) ' + @strCondition
end
----取得查询结果总数量-----
exec
sp_executesql @strTmp,N'@Counts int out ',@Counts out
declare @tmpCounts
int
if @Counts = 0
set @tmpCounts = 1
else
set @tmpCounts
= @Counts
--取得分页总数
set
@pageCount=(@tmpCounts+@pageSize-1)/@pageSize
/**当前页大于总页数 取最后一页**/
if @page>@pageCount
set @page=@pageCount
--/*-----数据分页2分处理-------*/
declare @pageIndex int --总数/页大小
declare @lastcount int --总数%页大小
--
set
@pageIndex = @tmpCounts/@pageSize
set @lastcount = @tmpCounts%@pageSize
if @lastcount > 0
set @pageIndex = @pageIndex + 1
else
set @lastcount = @pagesize
--//***显示分页
if
@strCondition is null or @strCondition='' --没有设置显示条件
begin
if
@pageIndex<2 or @page<=@pageIndex / 2 +
@pageIndex % 2 --前半部分数据处理
begin
if @page=1
set
@strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from
'+@tblName
+'
order by '+ @fldSort +' '+ @strFSortType
else
begin
if @Sort=1
begin
set
@strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from
'+@tblName
+' where '+@ID+' <(select min('+ @ID +') from ('+
@SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from
'+@tblName
+' order by '+ @fldSort +'
'+ @strFSortType+') AS TBMinID)'
+' order by '+ @fldSort +' '+
@strFSortType
end
else
begin
set
@strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from
'+@tblName
+' where '+@ID+' >(select max('+ @ID +') from ('+
@SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from
'+@tblName
+' order by '+ @fldSort +'
'+ @strFSortType+') AS TBMinID)'
+' order by '+ @fldSort +' '+
@strFSortType
end
end
end
else
begin
set @page = @pageIndex-@page+1 --后半部分数据处理
if
@page <= 1 --最后一页数据显示
set @strTmp=@SqlSelect+' *
from ('+@SqlSelect+' top '+ CAST(@lastcount
as VARCHAR(4))+' '+ @fldName+' from '+@tblName
+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by
'+ @fldSort +' '+ @strFSortType
else
if @Sort=1
begin
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as
VARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' >(select max('+ @ID
+') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as
Varchar(20)) +' '+ @ID +' from '+@tblName
+' order by '+ @fldSort +' '+ @strSortType+') AS TBMaxID)'
+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by
'+ @fldSort +' '+ @strFSortType
end
else
begin
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as
VARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' <(select min('+ @ID
+') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as
Varchar(20)) +' '+ @ID +' from '+@tblName
+' order by '+ @fldSort +' '+ @strSortType+') AS TBMaxID)'
+' order by '+ @fldSort +' '+ @strSortType+') AS TempTB'+' order by
'+ @fldSort +' '+ @strFSortType
end
end
end
else --有查询条件
begin
if @pageIndex<2 or @page<=@pageIndex / 2 + @pageIndex % 2 --前半部分数据处理
begin
if @page=1
set @strTmp=@SqlSelect+' top '+
CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
+'
where 1=1 ' + @strCondition + ' order by '+ @fldSort +' '+ @strFSortType
else if(@Sort=1)
begin
set
@strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from
'+@tblName
+' where '+@ID+' <(select min('+ @ID +') from ('+
@SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from
'+@tblName
+' where (1=1) ' +
@strCondition +' order by '+ @fldSort +' '+ @strFSortType+') AS TBMinID)'
+' '+ @strCondition +' order by '+ @fldSort +' '+ @strFSortType
end
else
begin
set @strTmp=@SqlSelect+'
top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' >(select max('+ @ID +') from ('+
@SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from
'+@tblName
+' where (1=1) ' +
@strCondition +' order by '+ @fldSort +' '+ @strFSortType+') AS TBMinID)'
+' '+ @strCondition +' order by '+ @fldSort +' '+ @strFSortType
end
end
else
begin
set
@page = @pageIndex-@page+1 --后半部分数据处理
if @page <= 1 --最后一页数据显示
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@lastcount as
VARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where (1=1) '+ @strCondition +' order by '+ @fldSort +' '+
@strSortType+') AS TempTB'+' order by '+ @fldSort +' '+
@strFSortType
else if(@Sort=1)
set
@strTmp=@SqlSelect+' * from ('+@SqlSelect+'
top '+ CAST(@pageSize as VARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' >(select max('+ @ID +') from('+
@SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+
@ID +' from '+@tblName
+' where
(1=1) '+ @strCondition +' order by '+ @fldSort +' '+ @strSortType+') AS
TBMaxID)'
+' '+ @strCondition+' order by '+ @fldSort +' '+
@strSortType+') AS TempTB'+' order by '+ @fldSort +' '+ @strFSortType
else
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as
VARCHAR(4))+' '+ @fldName+' from '+@tblName
+' where '+@ID+' <(select min('+ @ID
+') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as
Varchar(20)) +' '+ @ID +' from '+@tblName
+' where (1=1) '+ @strCondition +' order by '+ @fldSort +' '+
@strSortType+') AS TBMaxID)'
+' '+ @strCondition+' order by '+
@fldSort +' '+ @strSortType+') AS TempTB'+' order by '+ @fldSort +' '+
@strFSortType
end
end
------返回查询结果-----
exec sp_executesql @strTmp
set @UsedTime =
datediff(ms,@timediff,getdate())
--select datediff(ms,@timediff,getdate()) as
耗时
--print @strTmp
SET NOCOUNT OFF
GO
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