Sql语句与存储过程查询数据的性能测试

测试目的：测试执行一条SQL语句，直接执行与放在存储过程中执行速度比较

 

一.建立数据库Liezui_Test

     ID         int    主键 自增
    Title     varchar(100)
    ReadNum     int

 

二.向数据库中插入100万条数据

 

declare @i int

set @i=1

while @i<=500000

begin

         insert into Liezui_Test(Title,ReadNum) values( '执行总数统计',@i)

         set @i=@i+1

end

GO
declare @i int

set @i=1

while @i<=500000

begin
             insert into Liezui_Test(Title,ReadNum) values( '毛巾因经常处于潮湿状态而极易滋生有害细菌',@i)

         set @i=@i+1

end

GO

 

三.增加SelectByTitle存储过程

 

Create PROCEDURE [dbo].[SelectByTitle]
AS
BEGIN
Select top 10000 * from Liezui_Test where Title Like '%执行%'
END

 

四.开始测试

首先在页面内放一个repeater 用于绑定数据  二个label 用于显示结果

测试场景一 : 不绑定Repeater,只进行数据库源的绑定

代码如下：

 

                        Stopwatch st = new Stopwatch();
                        st.Start();
                        Repeater1.DataSource = Jinlong.Data.DBHelper.ReturnDataSet( "Select top 10000 * from Liezui_Test where Title Like '%执行%'").Tables[0];
                        st.Stop();
                        Label1.Text = st.ElapsedMilliseconds.ToString() + "ms";


                        Stopwatch st2 = new Stopwatch();
                        st2.Start();
                        SqlParameter[] para = { };
                        Repeater1.DataSource = Jinlong.Data.DBHelper.RunProcedure( "SelectByTitle", para, "ds");
                        st2.Stop();
                        Label2.Text = st2.ElapsedMilliseconds.ToString() + "ms";

 

结果如下：

 Label1  Label2
  52ms    48ms
  39ms    46ms
  45ms    44ms
  43ms    42ms
  37ms    40ms
  43ms    44ms

 

结论：用Sql语句和存储过程的速度差不多.

测试场景二 : 绑定Repeater

代码如下：

 

                        Stopwatch st = new Stopwatch();
                        st.Start();
                        Repeater1.DataSource = Jinlong.Data.DBHelper.ReturnDataSet( "Select top 10000 * from Liezui_Test where Title Like '%执行%'").Tables[0];
                        Repeater1.DataBind();
                        st.Stop();

                        Label1.Text = st.ElapsedMilliseconds.ToString() + "ms";

                        Stopwatch st2 = new Stopwatch();
                        st2.Start();
                        SqlParameter[] para = { };
                        Repeater1.DataSource = Jinlong.Data.DBHelper.RunProcedure( "SelectByTitle", para, "ds");
                        Repeater1.DataBind();
                        st2.Stop();
                        Label2.Text = st2.ElapsedMilliseconds.ToString() + "ms";

 

结果如下：
 Label1   Label2
161ms    192ms
205ms    191ms
142ms    208ms
153ms    198ms
134ms    209ms
280ms    335ms

 

 

结论：用存储过程的速度居然比直接用Sql语句还要慢.