mysql如何快速生成测试大数据库

云闲不收2025-06-12 15:57

快速生成1000W测试数据库；

创建测试表：

sql 复制代码

create table user (  
    id int(10) not null auto_increment,   
    uname  varchar(20) ,  
    regtime  char(30)  ,  
    age  int(11)   ,
    primary key (id)
)  
engine=myisam default charset=utf8 collate=utf8_general_ci  ,
auto_increment=1 ;

编写存储过程：

sql 复制代码

delimiter $$
SET AUTOCOMMIT = 0$$
 
create  procedure test()
begin
declare v_cnt decimal (10)  default 0 ;
dd:loop
          insert  into user values
    (null,rand()*10,now(),rand()*50),
        (null,rand()*10,now(),rand()*50),
        (null,rand()*10,now(),rand()*50),
        (null,rand()*10,now(),rand()*50),
        (null,rand()*10,now(),rand()*50),
        (null,rand()*10,now(),rand()*50),
        (null,rand()*10,now(),rand()*50),
        (null,rand()*10,now(),rand()*50),
        (null,rand()*10,now(),rand()*50),
        (null,rand()*10,now(),rand()*50);
      commit;
        set v_cnt = v_cnt+10 ;
           if  v_cnt = 10000000 then leave dd;
          end if;
         end loop dd ;
end;$$
 
delimiter ;

调用存储过程：

sql 复制代码

call test();