完整SQL分页存储过程（支持多表联接）

http://www.cnblogs.com/andiki/archive/2009/03/24/1420289.html

Code
/*********************************************************
* 作 用：数据分页(完整SQL分页存储过程（支持多表联接）)
* 作 者：齐李平
* 创建日期：2009-03-23
* 使用说明：
1、单表调用方法：EXEC proc_DataPagination @tblName = 'ipa',@fldName = '*',@pageSize =50,@page = 6789,@fldSort = '',@Sort = 1,@strCondition = '',@ID = 'id',@Dist = 0,@pageCount = null,@Counts = NULL
2、多表调用方法：EXEC proc_DataPagination @tblName = 'Info LEFT JOIN InfoType it ON it.typeid=Info.tid',@fldName = 'info.*,it.tname',@pageSize =50,@page = 1806,@fldSort = '',@Sort = 0,@strCondition = '',@ID = 'id',@Dist = 0, @pageCount = null,@Counts = NULL
* 多表联合查询使用需注意：1、多表中的主键字段不能为相同的名称。2、多表中不能允许具有相同名称的字段，如果存在相同名称的字段你可以使用AS重命名
*********************************************************/
alter PROCEDURE [dbo].[proc_DataPagination]
(
@tblName nvarchar(200), ----要显示的表或多个表的连接
@fldName nvarchar(500) = '*', ----要显示的字段列表
@pageSize int = 10, ----每页显示的记录个数
@page int = 1, ----要显示那一页的记录
@fldSort nvarchar(200) = null, ----排序字段列表或条件
@Sort bit = 0, ----排序方法，1为升序，0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 nvarchar(1000) = null, ----查询条件,不需where
@ID nvarchar(150), ----主表的主键
@Dist bit = 0, ----是否添加查询字段的 DISTINCT 默认0不添加/1添加
@pageCount int = 1 output, ----查询结果分页后的总页数
@Counts int = 1 output ----查询到的记录数
)
AS
SET NOCOUNT ON
Declare @sqlTmp nvarchar(1000) ----存放动态生成的SQL语句
Declare @strTmp nvarchar(1000) ----存放取得查询结果总数的查询语句
Declare @strID nvarchar(1000) ----存放取得查询开头或结尾ID的查询语句

Declare @strSortType nvarchar(10) ----数据排序规则A
Declare @strFSortType nvarchar(10) ----数据排序规则B

Declare @SqlSelect nvarchar(50) ----对含有DISTINCT的查询进行SQL构造
Declare @SqlCounts nvarchar(50) ----对含有DISTINCT的总数查询进行SQL构造

if @Dist = 0
begin
set @SqlSelect = 'select '
set @SqlCounts = 'Count(0)'
end
else
begin
set @SqlSelect = 'select distinct '
set @SqlCounts = 'Count(DISTINCT '+@ID+')'
end

if @Sort=0
begin
set @strFSortType=' DESC '
set @strSortType=' DESC '
end
else
begin
set @strFSortType=' ASC '
set @strSortType=' ASC '
end

if(@fldSort is not null and @fldSort<>'')
begin
set @fldSort=','+@fldSort
end
else
begin
set @fldSort=' '
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

--为配合显示
--set nocount off
--select @page curpage,@pageSize pagesize,@pageCount countpage,@tmpCounts [Rowcount]
--set nocount on

--//***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(40))+' '+ @fldName+' from '+@tblName
+' order by '+ @ID+' '+ @strFSortType+@fldSort
else
begin
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(40))+' '+ @fldName+' from '+@tblName
+' where '+@ID
if @Sort=0
set @strTmp = @strTmp + '>(select max('
else
set @strTmp = @strTmp + '<(select min('
set @strTmp = @strTmp + @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName
+' order by '+ @ID+' '+ @strFSortType+@fldSort+') AS TBMinID)'
+' order by '+ @ID+' '+ @strFSortType+@fldSort
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(40))+' '+ @fldName+' from '+@tblName
+' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TempTB'+' order by '+ @ID+' '+ @strFSortType+@fldSort
else
begin
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(40))+' '+ @fldName+' from '+@tblName
+' where '+@ID
if @Sort=0
set @strTmp=@strTmp+' <(select min('
else
set @strTmp=@strTmp+' >(select max('
set @strTmp=@strTmp+ @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName
+' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TBMaxID)'
+' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TempTB'+' order by '+ @ID+' '+ @strFSortType+@fldSort
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(40))+' '+ @fldName+' from '+@tblName
+' where 1=1 ' + @strCondition + ' order by '+ @ID+' '+ @strFSortType+@fldSort
else
begin
set @strTmp=@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(40))+' '+ @fldName+' from '+@tblName
+' where '+@ID
if @Sort=0
set @strTmp = @strTmp + '>(select max('
else
set @strTmp = @strTmp + '<(select min('

set @strTmp = @strTmp + @ID +') from ('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-1) as Varchar(20)) +' '+ @ID +' from '+@tblName
+' where (1=1) ' + @strCondition +' order by '+ @ID+' '+ @strFSortType+@fldSort+') AS TBMinID)'
+' '+ @strCondition +' order by '+ @ID+' '+ @strFSortType+@fldSort
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(40))+' '+ @fldName+' from '+@tblName
+' where (1=1) '+ @strCondition +' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TempTB'+' order by '+ @ID+' '+ @strFSortType+@fldSort
else
begin
set @strTmp=@SqlSelect+' * from ('+@SqlSelect+' top '+ CAST(@pageSize as VARCHAR(40))+' '+ @fldName+' from '+@tblName
+' where '+@ID
if @Sort=0
set @strTmp = @strTmp + '<(select min('
else
set @strTmp = @strTmp + '>(select max('
set @strTmp = @strTmp + @ID +') from('+ @SqlSelect+' top '+ CAST(@pageSize*(@page-2)+@lastcount as Varchar(20)) +' '+ @ID +' from '+@tblName
+' where (1=1) '+ @strCondition +' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TBMaxID)'
+' '+ @strCondition+' order by '+ @ID +' '+ @strSortType+@fldSort+') AS TempTB'+' order by '+ @ID+' '+ @strFSortType+@fldSort
end
end

end

------返回查询结果-----
SET NOCOUNT off
exec sp_executesql @strTmp
print @strTmp