1、安装你须要准备什么?mysql
- 能够链接互联网的一台Macbook
- Terminal终端
brew install mysql
Tips:brew是MacOS下的包管理工具,若命令不存在,请安装后执行。nginx
Updating Homebrew... ==> Auto-updated Homebrew! Updated 1 tap (homebrew/services). No changes to formulae. ==> Downloading https://mirrors.aliyun.com/homebrew/homebrew-bottles/bottles/protobuf-3.13.0.catalina.bottle.tar.gz ==> Downloading https://mirrors.aliyun.com/homebrew/homebrew-bottles/bottles/mysql-8.0.21_1.catalina.bottle.tar.gz ==> Installing dependencies for mysql: protobuf ==> Installing mysql dependency: protobuf ==> Pouring protobuf-3.13.0.catalina.bottle.tar.gz ==> Caveats Emacs Lisp files have been installed to: /usr/local/share/emacs/site-lisp/protobuf ==> Summary ? /usr/local/Cellar/protobuf/3.13.0: 266 files, 19.8MB ==> Installing mysql ==> Pouring mysql-8.0.21_1.catalina.bottle.tar.gz ==> /usr/local/Cellar/mysql/8.0.21_1/bin/mysqld --initialize-insecure --user=yunnasheng --basedir=/usr/local/Cellar/mysql/8.0.21_1 --datadir=/usr/local/var/mysql --tmpdir=/tmp ==> Caveats We've installed your MySQL database without a root password. To secure it run: mysql_secure_installation MySQL is configured to only allow connections from localhost by default To connect run: mysql -uroot To have launchd start mysql now and restart at login: brew services start mysql Or, if you don't want/need a background service you can just run: mysql.server start ==> Summary ? /usr/local/Cellar/mysql/8.0.21_1: 290 files, 291.2MB ==> `brew cleanup` has not been run in 30 days, running now... Removing: /usr/local/Cellar/gettext/0.20.1... (1,893 files, 18.4MB) Removing: /Users/yunnasheng/Library/Caches/Homebrew/gettext--0.20.1.catalina.bottle.tar.gz... (8.3MB) Removing: /usr/local/Cellar/openssl@1.1/1.1.1d... (7,983 files, 17.9MB) Removing: /usr/local/Cellar/pcre/8.43... (204 files, 5.5MB) Removing: /Users/yunnasheng/Library/Logs/Homebrew/tree... (64B) Removing: /Users/yunnasheng/Library/Logs/Homebrew/wget... (64B) Removing: /Users/yunnasheng/Library/Logs/Homebrew/libidn2... (64B) Removing: /Users/yunnasheng/Library/Logs/Homebrew/libunistring... (64B) Removing: /Users/yunnasheng/Library/Logs/Homebrew/nginx... (64B) Removing: /Users/yunnasheng/Library/Logs/Homebrew/gettext... (64B) Removing: /Users/yunnasheng/Library/Logs/Homebrew/openssl@1.1... (64B) Removing: /Users/yunnasheng/Library/Logs/Homebrew/pcre... (64B) Pruned 1 symbolic links and 3 directories from /usr/local ==> Caveats ==> protobuf Emacs Lisp files have been installed to: /usr/local/share/emacs/site-lisp/protobuf ==> mysql We've installed your MySQL database without a root password. To secure it run: mysql_secure_installation MySQL is configured to only allow connections from localhost by default To connect run: mysql -uroot To have launchd start mysql now and restart at login: brew services start mysql Or, if you don't want/need a background service you can just run: mysql.server start
mysql.server start
Starting MySQL . SUCCESS!
执行命令sql
mysql_secure_installation
执行命令后,根据提示完成密码设置,执行结果数据库
Securing the MySQL server deployment. Connecting to MySQL using a blank password. VALIDATE PASSWORD COMPONENT can be used to test passwords and improve security. It checks the strength of password and allows the users to set only those passwords which are secure enough. Would you like to setup VALIDATE PASSWORD component? Press y|Y for Yes, any other key for No: y There are three levels of password validation policy: LOW Length >= 8 MEDIUM Length >= 8, numeric, mixed case, and special characters STRONG Length >= 8, numeric, mixed case, special characters and dictionary file # 选择一个密码级别 Please enter 0 = LOW, 1 = MEDIUM and 2 = STRONG: 0 Please set the password for root here. # 设置密码 New password: Re-enter new password: Estimated strength of the password: 50 Do you wish to continue with the password provided?(Press y|Y for Yes, any other key for No) : y By default, a MySQL installation has an anonymous user, allowing anyone to log into MySQL without having to have a user account created for them. This is intended only for testing, and to make the installation go a bit smoother. You should remove them before moving into a production environment. # 是否要删除匿名用户?按 y 表示赞成,其余任意键表示拒绝 Remove anonymous users? (Press y|Y for Yes, any other key for No) : y Success. # 一般root用户只从本地登陆,这样能够确保有人没法猜想来自网络的root密码 Normally, root should only be allowed to connect from 'localhost'. This ensures that someone cannot guess at the root password from the network. # 是否要禁止远程root登陆? Disallow root login remotely? (Press y|Y for Yes, any other key for No) : no ... skipping. By default, MySQL comes with a database named 'test' that anyone can access. This is also intended only for testing, and should be removed before moving into a production environment. # 是否要删除测试数据库? Remove test database and access to it? (Press y|Y for Yes, any other key for No) : no ... skipping. Reloading the privilege tables will ensure that all changes made so far will take effect immediately. # 如今从新加载受权表? Reload privilege tables now? (Press y|Y for Yes, any other key for No) : y Success. All done!2、快速开始
mysql -u root -p
Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 10 Server version: 8.0.21 Homebrew Copyright (c) 2000, 2020, 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> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | mysql | | performance_schema | | sys | +--------------------+ 4 rows in set (0.00 sec)
create database local_test character set utf8mb4;
mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | local_test | | mysql | | performance_schema | | sys | +--------------------+ 5 rows in set (0.00 sec)
mysql>create user 'dev_user'@'%' identified by '@dev6pWd'; Query OK, 0 rows affected (0.01 sec)
若是建立用户时出现错误:Your password does not satisfy the current policy requirements 请先查看密码策略后,修改密码再建立。安全
mysql> SHOW VARIABLES LIKE 'validate_password%'; +--------------------------------------+--------+ | Variable_name | Value | +--------------------------------------+--------+ | validate_password.check_user_name | ON | | validate_password.dictionary_file | | | validate_password.length | 8 | | validate_password.mixed_case_count | 1 | | validate_password.number_count | 1 | | validate_password.policy | MEDIUM | | validate_password.special_char_count | 1 | +--------------------------------------+--------+ 7 rows in set (0.00 sec)
扩展语法bash
- 修改用户 - bash rename user '用户名'@'IP地址' to '新用户名'@'IP地址';
- 修改密码 - set password for '用户名'@'IP地址'=Password('新密码');
- 指定ip登陆 -( 192.168.1.开头的local_admin用户,密码为admin登陆) create user 'local_admin'@'192.168.1.%' identified by 'admin';
grant all privileges on local_test.* to 'dev_user'@'%'; Query OK, 0 rows affected (0.01 sec)
flush privileges;
# 退出MySQL mysql> exit Bye # 使用dev_user用户登陆 mysql -u dev_user -p # 输入密码 Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 13 Server version: 8.0.21 Homebrew Copyright (c) 2000, 2020, 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>
# 查看拥有的数据库 mysql> show databases; +--------------------+ | Database | +--------------------+ | information_schema | | local_test | +--------------------+ 2 rows in set (0.00 sec) # 使用local_test库 mysql> use local_test; Database changed mysql> # 显示全部表 mysql> show tables; Empty set (0.00 sec)
CREATE TABLE IF NOT EXISTS `lt_dict`( `id` VARCHAR(64) NOT NULL , `code` VARCHAR(128) NOT NULL, `name` VARCHAR(128) NOT NULL, `status` VARCHAR(12) NOT NULL, PRIMARY KEY ( `id` ) )ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
INSERT INTO lt_dict (id, code, name, status) VALUES ('3c3da1d4b3b94bd9b33fb340dfdb605c', '001', 'cjack-60', '0');
mysql> select * from lt_dict; +----------------------------------+------+----------+--------+ | id | code | name | status | +----------------------------------+------+----------+--------+ | 3c3da1d4b3b94bd9b33fb340dfdb605c | 001 | cjack-60 | 0 | +----------------------------------+------+----------+--------+ 1 row in set (0.00 sec)
恭喜你!完成了MySQL的基本入门!!网络