51工具盒子# mysql创建用户 {#mysql创建用户}
本文介绍mysql如何创建用户，mysql低版本和8.0以后版本的操作方法略有不同。低版本的grant命令支持自动创建用户，而8.0以后版本不支持。
# 1. 创建用户 {#_1-创建用户}
若mysql版本小于8.0，该步骤可以省略。
ubuntu@VM-0-6-ubuntu:~$ mysql -uroot -pbuzhidao -h 127.0.0.1
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 221
Server version: 8.0.16 MySQL Community Server - GPL
Copyright (c) 2000, 2022, Oracle and/or its affiliates.
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> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| sys |
+--------------------+
7 rows in set (0.00 sec)
mysql> create user gitea@'%' identified by 'gitea';
Query OK, 0 rows affected (0.01 sec)
# 2. 授权 {#_2-授权}
授权的维度如下：
- 哪个用户
- 哪个数据库
- 哪些表
- 增加、删除、修改或查询等
示例如下：
mysql> grant all privileges on gitea.* to gitea@'%' with grant option;
Query OK, 0 rows affected (0.01 sec)
mysql>
# 3. 验证 {#_3-验证}
ubuntu@VM-0-6-ubuntu:~$ mysql -ugitea -pgitea -h 127.0.0.1
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 224
Server version: 8.0.16 MySQL Community Server - GPL
Copyright (c) 2000, 2022, Oracle and/or its affiliates.
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> show databases;
+--------------------+
| Database |
+--------------------+
| gitea |
| information_schema |
+--------------------+
2 rows in set (0.00 sec)
mysql>
可以看出该用户只能访问到数据库gitea，说明权限配置已生效。
