--建表
create table tb_TestTable
(
id int identity(1,1) primary key not null,
userName nvarchar(50) null,
userPwd nvarchar(50) null,
useremail nvarchar(200) null
)
--插入数据
declare @count int
set @count = 1
while @count<=10000000
begin
insert into tb_TestTable(userName,userPwd,useremail)
values('admin','admin888','lli0077@yahoo.com.cn')
set @count=@count+1
end
if exists(select * from dbo.sysobjects where name='proc_paged_2part_selectMax')
drop procedure proc_paged_2part_selectMax
go
create proc proc_paged_2part_selectMax
(
@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
/**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 ')
**/
@Sort bit = 0,
@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
@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
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
select datediff(ms,@timediff,getdate()) as 耗时
--print @strTmp
set nocount off
go
exec proc_paged_2part_selectMax 'tb_testTable','ID,userName,userPWD,userEmail',22,100000,'ID',0,null,'ID',0
