openEuler23.09安装MySQL8.4.0

在openEuler-23.09上安装MySQL8.4.0

一、MySQL数据库服务环境搭建

操作系统版本
openEuler-23.09-x86_64-dvd.iso ，安装步骤此处省略。。。

MySQL8.4.0下载地址
https://dev.mysql.com/downloads/mysql/

1.1、下载及上传mysql二进制安装包

在这里插入图片描述
上传mysql-8.4.0-linux-glibc2.17-x86_64.tar.xz到soft目录
ls -lsa /soft

1.2、关闭防火墙

systemctl status firewalld.service
systemctl stop firewalld.service
systemctl disable firewalld.service

1.3、关闭SELINUX防火墙

vi /etc/selinux/config

将内容
SELINUX=enforcing
更改为
SELINUX=disabled

1.4、创建用户及用户组

1.4.1、创建myql的HOME目录

mkdir -p /home/mysql

1.4.2、创建mysql组

groupadd mysql

1.4.3、创建mysql用户，并指定组和默认路径

useradd -r -d /home/mysql -g mysql mysql

1.4.4、将Mysql默认路径的用户和组改成mysql

chown -R mysql:mysql /home/mysql

1.5、解压mysql到/usr/local

cd /soft
xz -d mysql-8.4.0-linux-glibc2.17-x86_64.tar.xz
tar xvf mysql-8.4.0-linux-glibc2.17-x86_64.tar -C /usr/local

cd /usr/local
mv mysql-8.4.0-linux-glibc2.17-x86_64 mysql

1.6、编辑环境变量增加MySQL HOME路径和登陆提示

vi ~/.bash_profile

PATH=$PATH:/usr/local/mysql/bin:$HOME/bin

export MYSQL_PS1="(\u@\h:\p)[\d]>"

source ~/.bash_profile

二、安装配置MySQL

2.1、MySQL -V 检查版本

[root@openEuler local]# mysql -V
mysql: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory

使用find命令在系统查找libncurses.so.5 文件

[root@openEuler local]# find / -name libncurses.so.5

[root@openEuler local]# find / -name libncurses.so*
/usr/lib64/libncurses.so.6
/usr/lib64/libncurses.so.6.4
/usr/lib64/libncurses.so

设置软连接libncurses.so.5

[root@openEuler local]# ln -sf /usr/lib64/libncurses.so.6 /usr/lib64/libncurses.so.5
[root@openEuler local]# find / -name libncurses.so.5
/usr/lib64/libncurses.so.5

检查版本

[root@openEuler local]# mysql -V
mysql  Ver 8.4.0 for Linux on x86_64 (MySQL Community Server - GPL)

2.2、创建mysql数据目录

mkdir -p /mysql_data/3306/data
chown -R mysql:mysql /mysql_data
chmod -R 750 /mysql_data

2.3、编辑my.cnf

vi /etc/my.cnf

[mysqld]
server-id=802393306
port=3306
basedir=/usr/local/mysql
datadir=/mysql_data/3306/data
log-error=/mysql_data/3306/data/error.log
socket=/tmp/mysql.sock
pid-file=/mysql_data/3306/data/mysql.pid
character-set-server=utf8mb4
lower_case_table_names=1
innodb_log_file_size=1G
default-storage-engine=INNODB
mysql_native_password=ON

[mysql]
prompt=(\\u@\\h)[\\d]>\\_

[client]
port=3306
default-character-set=utf8mb4

2.4、初始化数据库

mysqld --initialize --user mysql

[root@openEuler local]# mysqld --initialize --user mysql

-- 初始化完成检查错误日志
cat /mysql_data/3306/data/error.log

-- 检查数据目录下文件
cd /mysql_data/3306/data
ls -lst

2.5、设置开机启动

启动并检查状态

[root@openEuler local]# /usr/local/mysql/support-files/mysql.server start
Starting MySQL.. SUCCESS!

[root@openEuler local]# /usr/local/mysql/support-files/mysql.server status
 SUCCESS! MySQL running (36869)

设置开机启动

[root@openEuler mysql]# cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld

[root@openEuler mysql]# chkconfig --list

[root@openEuler mysql]# chkconfig --add mysqld

[root@openEuler mysql]# chkconfig --list

Note: This output shows SysV services only and does not include native
      systemd services. SysV configuration data might be overridden by native
      systemd configuration.

      If you want to list systemd services use 'systemctl list-unit-files'.
      To see services enabled on particular target use
      'systemctl list-dependencies [target]'.

mysqld          0:off   1:off   2:on    3:on    4:on    5:on    6:off

[root@openEuler ~]# service mysqld status
 SUCCESS! MySQL running (10724)

[root@openEuler ~]# service mysqld stop
Shutting down MySQL. SUCCESS!

[root@openEuler ~]# service mysqld start
Starting MySQL. SUCCESS!

2.5、设置用户密码

2.5.1、设置用户’root’@'localhost’密码

[root@openEuler mysql]# cat /mysql_data/3306/data/error.log |grep temporary
2022-08-29T07:41:00.038502Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: sNa1sks(DG,n

[root@openEuler mysql]# mysql -uroot -p

mysql> alter user 'root'@'localhost' identified  by 'Root@2024';
Query OK, 0 rows affected (0.00 sec)

2.5.2、创建用户’root’@‘%’ 并授权所有权限

create user 'root'@'%' identified  by 'Root@2024';
grant all privileges on *.* to 'root'@'%' ;
flush privileges;

三、创建数据库及数据表

3.1、创建数据库superdb

mysql -uroot -p -h192.168.80.239

create database superdb;

use superdb;

3.2、数据表及插入数据

create table dept
( deptno int unsigned auto_increment primary key COMMENT '部门编号',
dname  varchar(15) COMMENT '部门名称'  ,
loc  varchar(50) COMMENT '部门所在位置'
)engine = InnoDB DEFAULT charset=utf8mb4 COMMENT='员工部门表';

create table emp(
empno int unsigned auto_increment primary key COMMENT '雇员编号',
ename varchar(15)  COMMENT '雇员姓名' ,
job varchar(10)   COMMENT '雇员职位'  ,
mgr int unsigned  COMMENT '雇员对应的领导的编号',
hiredate  date    COMMENT '雇员的雇佣日期' ,
sal decimal(7,2)  COMMENT '雇员的基本工资' ,
comm  decimal(7,2)   COMMENT '奖金'  ,
deptno int unsigned   COMMENT '所在部门' ,
foreign key(deptno) references dept(deptno)
)engine = innodb default charset =utf8mb4 comment='雇员信息表';


create table salgrade
(
grade int COMMENT '工资等级',
losal int COMMENT '此等级的最低工资',
hisal int COMMENT '此等级的最高工资'
)engine=innodb DEFAULT charset=utf8mb4 COMMENT='工资等级表';


create table bonus
( ename  varchar(10) COMMENT '雇员姓名',
  job    varchar(9) COMMENT '雇员职位',
  sal    decimal(7,2) COMMENT '雇员工资',
  comm   decimal(7,2) COMMENT '雇员奖金'
)engine=innodb DEFAULT charset=utf8mb4 COMMENT='雇员奖金表' ;

INSERT INTO dept VALUES (10,'ACCOUNTING','NEW YORK');
INSERT INTO dept VALUES (20,'RESEARCH','DALLAS');
INSERT INTO dept VALUES (30,'SALES','CHICAGO');
INSERT INTO dept VALUES (40,'OPERATIONS','BOSTON');

INSERT INTO emp VALUES    (7369,'SMITH','CLERK',7902,'1980-12-17',800,NULL,20);
INSERT INTO emp VALUES    (7499,'ALLEN','SALESMAN',7698,'1981-2-20',1600,300,30);
INSERT INTO emp VALUES    (7521,'WARD','SALESMAN',7698,'1981-2-22',1250,500,30);
INSERT INTO emp VALUES    (7566,'JONES','MANAGER',7839,'1981-4-2',2975,NULL,20);
INSERT INTO emp VALUES    (7654,'MARTIN','SALESMAN',7698,'1981-9-28',1250,1400,30);
INSERT INTO emp VALUES    (7698,'BLAKE','MANAGER',7839,'1981-5-1',2850,NULL,30);
INSERT INTO emp VALUES    (7782,'CLARK','MANAGER',7839,'1981-6-9',2450,NULL,10);
INSERT INTO emp VALUES    (7788,'SCOTT','ANALYST',7566,'87-7-13',3000,NULL,20);
INSERT INTO emp VALUES    (7839,'KING','PRESIDENT',NULL,'1981-11-17',5000,NULL,10);
INSERT INTO emp VALUES    (7844,'TURNER','SALESMAN',7698,'1981-9-8',1500,0,30);
INSERT INTO emp VALUES    (7876,'ADAMS','CLERK',7788,'87-7-13',1100,NULL,20);
INSERT INTO emp VALUES    (7900,'JAMES','CLERK',7698,'1981-12-3',950,NULL,30);
INSERT INTO emp VALUES    (7902,'FORD','ANALYST',7566,'1981-12-3',3000,NULL,20);
INSERT INTO emp VALUES    (7934,'MILLER','CLERK',7782,'1982-1-23',1300,NULL,10);

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);

select empno,ename,job,deptno,sal,row_number() over(partition by deptno order by sal desc) Rn from emp;

在这里插入图片描述

命名 status 和 \s 等价都是查看数据库状态信息

-- 执行 status 命令
(root@localhost)[superdb]> status
--------------
mysql  Ver 8.4.0 for Linux on x86_64 (MySQL Community Server - GPL)

Connection id:          9
Current database:       superdb
Current user:           root@localhost
SSL:                    Not in use
Current pager:          stdout
Using outfile:          ''
Using delimiter:        ;
Server version:         8.4.0 MySQL Community Server - GPL
Protocol version:       10
Connection:             Localhost via UNIX socket
Server characterset:    utf8mb4
Db     characterset:    utf8mb4
Client characterset:    utf8mb4
Conn.  characterset:    utf8mb4
UNIX socket:            /tmp/mysql.sock
Binary data as:         Hexadecimal
Uptime:                 1 min 58 sec

Threads: 2  Questions: 14  Slow queries: 0  Opens: 164  Flush tables: 3  Open tables: 83  Queries per second avg: 0.118
--------------
-- 执行 \s 命令
root@localhost)[superdb]> \s
--------------
mysql  Ver 8.4.0 for Linux on x86_64 (MySQL Community Server - GPL)

Connection id:          10
Current database:       superdb
Current user:           root@localhost
SSL:                    Not in use
Current pager:          stdout
Using outfile:          ''
Using delimiter:        ;
Server version:         8.4.0 MySQL Community Server - GPL
Protocol version:       10
Connection:             Localhost via UNIX socket
Server characterset:    utf8mb4
Db     characterset:    utf8mb4
Client characterset:    utf8mb4
Conn.  characterset:    utf8mb4
UNIX socket:            /tmp/mysql.sock
Binary data as:         Hexadecimal
Uptime:                 34 min 7 sec

Threads: 2  Questions: 27  Slow queries: 0  Opens: 175  Flush tables: 3  Open tables: 94  Queries per second avg: 0.013
--------------