MySQL 安装 & MySQL 服务启动、停止、重启

1 下载 MySQL

下载 mysql-8.0.13-macos10.14-x86_64.dmg

下载即可

或者官网，选择下载平台。

选择下载平台

2 安装 MySQL

打开安装包，按照提示安装即可，最关键的一步，就是设置root密码
建立数据库连接的时候要用。

设置 root 密码

3 使用 MySQL

3.1 启动 / 停止 / 重启 MySQL 服务

命令

# 启动 MySQL 服务
sudo /usr/local/MySQL/support-files/mysql.server start

# 停止 MySQL 服务
sudo /usr/local/mysql/support-files/mysql.server stop

# 重启 MySQL 服务
sudo /usr/local/mysql/support-files/mysql.server restart

MySQL配置界面

也可以手动启动 / 停止 MySQL服务

启动 / 停止 MySQL服务

启动 MySQL，报错

jake@Jake:~/Documents/demo$     sudo /usr/local/MySQL/support-files/mysql.server start
Password:
Starting MySQL
.Logging to '/usr/local/mysql/data/Jake.local.err'.
.................................................................................................... ERROR! The server quit without updating PID file (/usr/local/mysql/data/Jake.local.pid).

解决
那是因为 MySQL 已经启动，停止MySQL服务，再次使用启动命令
或者直接使用即可

jake@Jake:/usr/local/mysql/bin$     sudo /usr/local/MySQL/support-files/mysql.server start
Password:
Starting MySQL
. SUCCESS!

使用 MySQL

切换目录到 /usr/local/mysql/bin ，输入下面命令

# 和 127.0.0.1 发生关系
jake@Jake:/usr/local/mysql/bin$     mysql -uroot -h 127.0.0.1 -p
Enter password:
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 15
Server version: 8.0.13 MySQL Community Server - GPL

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

mysql 命令

mysql> SHOW DATABASES;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.00 sec)

验证安装成功

jake@Jake:/usr/local/mysql/bin$     mysqladmin --version
mysqladmin  Ver 8.0.13 for macos10.14 on x86_64 (MySQL Community Server - GPL)