Centos 6.x 对 mysql 添加数据库、用户、授权，删除数据库、用户

2023年5月14日 201次阅读 来源: 阿波罗程序猿
查看数据库
mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.00 sec)
创建数据库
mysql> create database test default character set utf8mb4 collate utf8mb4_unicode_ci;
Query OK, 1 row affected (0.00 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
| test               |
+--------------------+
5 rows in set (0.00 sec)
授权并创建用户
mysql> grant all privileges on test.*  to zb@'%' identified by '***?!';
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> exit
Bye
[root@lyf ~]# mysql -uzb -p***?!
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 4
Server version: 5.7.22 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> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| test               |
+--------------------+
2 rows in set (0.00 sec)

删除用户

用root登陆
mysql> use mysql;
Database changed
mysql> delete from user where user='zb' and host='localhost' ;
mysql>flush privileges ;
mysql>exit
[root@lyf ~]# mysql -uzb -p****?!
mysql: [Warning] Using a password on the command line interface can be insecure.
ERROR 1045 (28000): Access denied for user 'zb'@'localhost' (using password: YES)

删除数据库

mysql> drop DATABASE test;
Query OK, 0 rows affected (0.00 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
+--------------------+
4 rows in set (0.00 sec)
    原文作者：阿波罗程序猿
    原文地址: https://www.jianshu.com/p/356552699227
    本文转自网络文章，转载此文章仅为分享知识，如有侵权，请联系博主进行删除。
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