测试环境 硬件:CPU 酷睿双核T5750 内存:2G 软件:Windows server 2003 + sql server 2005 OK,我们首先创建一数据库:data_Test,并在此数据库中创建一表:tb_TestTable 复制代码 代码如下: create database data_Test --创建数据库 data_Test GO use data_Test GO create table tb_TestTable --创建表 (id int identity(1,1) primary key, userName nvarchar(20) not null, userPWD nvarchar(20) not null, userEmail nvarchar(40) null) GO
然后我们在数据表中插入2000000条数据:
复制代码 代码如下: --插入数据 set identity_insert tb_TestTable on declare @count int set @count=1 while @count<=2000000 begin insert into tb_TestTable(id,userName,userPWD,userEmail) values(@count,"admin","admin888","lli0077@yahoo.com.cn") set @count=@count+1 end set identity_insert tb_TestTable off
我首先写了五个常用存储过程: 1,利用select top 和select not in进行分页,具体代码如下: 复制代码 代码如下:create procedure proc_paged_with_notin --利用select top and select not in ( @pageIndex int, --页索引 @pageSize int --每页记录数 ) as begin set nocount on; declare @timediff datetime --耗时 declare @sql nvarchar(500) select @timediff=Getdate() set @sql="select top "+str(@pageSize)+" * from tb_TestTable where(ID not in(select top "+str(@pageSize*@pageIndex)+" id from tb_TestTable order by ID ASC)) order by ID" execute(@sql) --因select top后不支技直接接参数,所以写成了字符串@sql select datediff(ms,@timediff,GetDate()) as 耗时 set nocount off; end
2,利用select top 和 select max(列键) 复制代码 代码如下:create procedure proc_paged_with_selectMax --利用select top and select max(列) ( @pageIndex int, --页索引 @pageSize int --页记录数 ) as begin set nocount on; declare @timediff datetime declare @sql nvarchar(500) select @timediff=Getdate() set @sql="select top "+str(@pageSize)+" * From tb_TestTable where(ID>(select max(id) From (select top "+str(@pageSize*@pageIndex)+" id From tb_TestTable order by ID) as TempTable)) order by ID" execute(@sql) select datediff(ms,@timediff,GetDate()) as 耗时 set nocount off; end
3,利用select top和中间变量--此方法因网上有人说效果最佳,所以贴出来一同测试 复制代码 代码如下:create procedure proc_paged_with_Midvar --利用ID>最大ID值和中间变量 ( @pageIndex int, @pageSize int ) as declare @count int declare @ID int declare @timediff datetime declare @sql nvarchar(500) begin set nocount on; select @count=0,@ID=0,@timediff=getdate() select @count=@count+1,@ID=case when @count<=@pageSize*@pageIndex then ID else @ID end from tb_testTable order by id set @sql="select top "+str(@pageSize)+" * from tb_testTable where ID>"+str(@ID) execute(@sql) select datediff(ms,@timediff,getdate()) as 耗时 set nocount off; end
4,利用Row_number() 此方法为sql server 2005中新的方法,利用Row_number()给数据行加上索引 复制代码 代码如下:create procedure proc_paged_with_Rownumber --利用SQL 2005中的Row_number() ( @pageIndex int, @pageSize int ) as declare @timediff datetime begin set nocount on; select @timediff=getdate() select * from (select *,Row_number() over(order by ID asc) as IDRank from tb_testTable) as IDWithRowNumber where IDRank>@pageSize*@pageIndex and IDRank<@pageSize*(@pageIndex+1) select datediff(ms,@timediff,getdate()) as 耗时 set nocount off; end
5,利用临时表及Row_number 复制代码 代码如下:create procedure proc_CTE --利用临时表及Row_number ( @pageIndex int, --页索引 @pageSize int --页记录数 ) as set nocount on; declare @ctestr nvarchar(400) declare @strSql nvarchar(400) declare @datediff datetime begin select @datediff=GetDate() set @ctestr="with Table_CTE as (select ceiling((Row_number() over(order by ID ASC))/"+str(@pageSize)+") as page_num,* from tb_TestTable)"; set @strSql=@ctestr+" select * From Table_CTE where page_num="+str(@pageIndex) end begin execute sp_executesql @strSql select datediff(ms,@datediff,GetDate()) set nocount off; end
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