mysql壓力測試劇本實例。本站提示廣大學習愛好者：（mysql壓力測試劇本實例）文章只能為提供參考，不一定能成為您想要的結果。以下是mysql壓力測試劇本實例正文
本文實例講述了mysql壓力測試的劇本，分享給年夜家供年夜家參考。詳細以下：
創立表DEPT
CREATE TABLE dept( /*部分表*/
deptno MEDIUMINT UNSIGNED NOT NULL DEFAULT 0,
dname VARCHAR(20) NOT NULL DEFAULT "",
loc VARCHAR(13) NOT NULL DEFAULT ""
) ENGINE=MyISAM DEFAULT CHARSET=utf8 ;
創立表EMP雇員
CREATE TABLE emp
(empno MEDIUMINT UNSIGNED NOT NULL DEFAULT 0,
ename VARCHAR(20) NOT NULL DEFAULT "",
job VARCHAR(9) NOT NULL DEFAULT "",
mgr MEDIUMINT UNSIGNED NOT NULL DEFAULT 0,
hiredate DATE NOT NULL,
sal DECIMAL(7,2) NOT NULL,
comm DECIMAL(7,2) NOT NULL,
deptno MEDIUMINT UNSIGNED NOT NULL DEFAULT 0
)ENGINE=MyISAM DEFAULT CHARSET=utf8 ;
工資級別表
CREATE TABLE salgrade
(
grade MEDIUMINT UNSIGNED NOT NULL DEFAULT 0,
losal DECIMAL(17,2) NOT NULL,
hisal DECIMAL(17,2) NOT NULL
)ENGINE=MyISAM DEFAULT CHARSET=utf8;
INSERT INTO salgrade VALUES (1,700,1200);
INSERT INTO salgrade VALUES (2,1201,1400);
INSERT INTO salgrade VALUES (3,1401,2000);
INSERT INTO salgrade VALUES (4,2001,3000);
INSERT INTO salgrade VALUES (5,3001,9999);
隨機發生字符串
界說一個新的敕令停止相符
delimiter $$
刪除自定的函數
drop function rand_string $$
這裡我創立了一個函數.
create function rand_string(n INT)
returns varchar(255)
begin
declare chars_str varchar(100) default
'abcdefghijklmnopqrstuvwxyzABCDEFJHIJKLMNOPQRSTUVWXYZ';
declare return_str varchar(255) default '';
declare i int default 0;
while i < n do
set return_str =concat(return_str,substring(chars_str,floor(1+rand()*52),1));
set i = i + 1;
end while;
return return_str;
end $$
delimiter ;
select rand_string(6);
隨機發生部分編號
delimiter $$
drop function rand_num $$
這裡我們又自定了一個函數
create function rand_num( )
returns int(5)
begin
declare i int default 0;
set i = floor(10+rand()*500);
return i;
end $$
delimiter ;
select rand_num();
向emp表中拔出記載(海量的數據)
delimiter $$
drop procedure insert_emp $$
create procedure insert_emp(in start int(10),in max_num int(10))
begin
declare i int default 0;
set autocommit = 0;
repeat
set i = i + 1;
insert into emp values ((start+i) ,rand_string(6),'SALESMAN',0001,curdate(),2000,400,rand_num());
until i = max_num
end repeat;
commit;
end $$
delimiter ;
挪用方才寫好的函數, 1800000筆記錄,從100001號開端
call insert_emp(100001,1800000);
向dept表中拔出記載
delimiter $$
drop procedure insert_dept $$
create procedure insert_dept(in start int(10),in max_num int(10))
begin
declare i int default 0;
set autocommit = 0;
repeat
set i = i + 1;
insert into dept values ((start+i) ,rand_string(10),rand_string(8));
until i = max_num
end repeat;
commit;
end $$
delimiter ;
call insert_dept(100,10);
向salgrade 表拔出數據
delimiter $$
drop procedure insert_salgrade $$
create procedure insert_salgrade(in start int(10),in max_num int(10))
begin
declare i int default 0;
set autocommit = 0;
ALTER TABLE emp DISABLE KEYS;
repeat
set i = i + 1;
insert into salgrade values ((start+i) ,(start+i),(start+i));
until i = max_num
end repeat;
commit;
end $$
delimiter ;
#測試不須要了
#call insert_salgrade(10000,1000000);
願望本文所述對年夜家的MySQL數據庫法式設計有所贊助。
