Sql语句与存储过程查询数据的性能测试实现代码

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
三.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.