mysql的测试和造数据脚本

mysql的测试和造数据脚本:

use cim;
drop table if exists student;
create table student
(
    s_id      int(11) not null auto_increment,
    sno       int(11),
    sname     varchar(50),
    sage      int(11),
    ssex      varchar(8),
    father_id int(11),
    mather_id int(11),
    note      varchar(500),
    primary key (s_id),
    unique key uk_sno (sno)
) engine = innodb
  default charset = utf8mb4;
truncate table student;
delimiter $$
drop function if exists insert_student_data $$
create function insert_student_data()
    returns int deterministic
begin
    declare i int;
    set i = 1;
    while i < 50000000
        do
            insert into student
            values (i, i, concat('name', i), i, case when floor(rand() * 10) % 2 = 0 then 'f' else 'm' end,
                    floor(rand() * 100000), floor(rand() * 1000000), concat('note', i));
            set i = i + 1;
        end while;
    return 1;
end$$
delimiter ;
select insert_student_data();
select count(*)
from student;
use cim;
create table course
(
    c_id  int(11) not null auto_increment,
    cname varchar(50),
    note  varchar(500),
    primary key (c_id)
) engine = innodb
  default charset = utf8mb4;
truncate table course;
delimiter $$
drop function if exists insert_course_data $$
create function insert_course_data()
    returns int deterministic
begin
    declare i int;
    set i = 1;
    while i <= 1000
        do
            insert into course values (i, concat('course', i), floor(rand() * 1000), concat('note', i));
            set i = i + 1;
        end while;
    return 1;
end$$
delimiter ;
select insert_course_data();
select count(*)
from course;
use cim;
drop table if exists sc;
create table sc
(
    s_id  int(11),
    c_id  int(11),
    t_id  int(11),
    score int(11)
) engine = innodb
  default charset = utf8mb4;
truncate table sc;
delimiter $$
drop function if exists insert_sc_data $$
create function insert_sc_data()
    returns int deterministic
begin
    declare i int;
    set i = 1;
    while i <= 50000000
        do
            insert into sc values (i, floor(rand() * 1000), floor(rand() * 10000000), floor(rand() * 750));
            set i = i + 1;
        end while;
    return 1;
end$$
delimiter ;
select insert_sc_data();
commit;
select insert_sc_data();
commit;
create index idx_s_id on sc (s_id);
create index idx_t_id on sc (t_id);
create index idx_c_id on sc (c_id);
select count(*)
from sc;
use cim;
drop table if exists teacher;
create table teacher
(
    t_id  int(11) not null auto_increment,
    tname varchar(50),
    note  varchar(500),
    primary key (t_id)
) engine = innodb
  default charset = utf8mb4;

truncate table teacher;
delimiter $$
drop function if exists insert_teacher_data $$
create function insert_teacher_data()
    returns int deterministic
begin
    declare i int;
    set i = 1;
    while i <= 10000000
        do
            insert into teacher values (i, concat('tname', i), concat('note', i));
            set i = i + 1;
        end while;
    return 1;
end$$
delimiter ;
select insert_teacher_data();
commit;
select count(*)
from teacher;

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