使用navicat生成数据库百万级数据库脚本

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使用navicat生成数据库百万级数据库脚本

1.建表语句

部门表

CREATE TABLE dept( /*部门表*/
deptno MEDIUMINT   UNSIGNED  NOT NULL  DEFAULT 0,
dname VARCHAR(20)  NOT NULL  DEFAULT "",
loc VARCHAR(13) NOT NULL DEFAULT ""
) ENGINE=MyISAM DEFAULT CHARSET=utf8 ;

人员表

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 ;

薪资表

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);

2.创建函数和存储过程

创建随机字符函数

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

创建随机数函数

create function rand_num( )
returns int(5)
begin 
 declare i int default 0;
 set i = floor(10+rand()*500);
return i;
  end

创建人员插入语句

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

创建部门插入语句

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

运行插入

call insert_dept(1,500)

注意：第二句会执行10分钟左右，请耐心等等。

call insert_emp(100001,1800000)