Home | 简体中文 | 繁体中文 | 杂文 | 打赏(Donations) | 云栖社区 | OSChina 博客 | Facebook | Linkedin | 知乎专栏 | Github | Search | About

第 21 章 Database Administration

目录

21.1. User Account Management
21.1.1. Create User
21.1.2. Drop User
21.1.3. Rename User
21.1.4. SET PASSWORD
21.2. Access Privilege System
21.2.1. SHOW GRANTS
21.2.2. show privileges
21.2.3. Grant privileges
21.2.4. Revoke privileges
21.2.5. Show Privileges
21.2.6. MAX_QUERIES_PER_HOUR/MAX_UPDATES_PER_HOUR
21.2.7. Table Privileges
21.2.8. Column Privileges
21.3. Maintenance 数据库维护
21.3.1. CHECK 检查表
21.3.2. ANALYZE 分析表
21.3.3. CHECKSUM
21.3.4. OPTIMIZE 优化表
21.3.5. REPAIR 修复
21.4. INFORMATION_SCHEMA
21.4.1. 查询表字段
21.4.2. 列出所有触发器
21.5. Backup and Recovery
21.5.1. Import / Export
21.5.1.1. Export(Backup)
21.5.1.2. Import(Recovery)
21.5.1.3. xml
21.5.1.4. 备份表数据
21.5.1.5. source
21.5.1.6. 使用 mysqlhotcopy 备份 MyISAM 引擎的数据库
21.5.1.7. AutoMySQLBackup
21.5.1.8. xtrabackup - Open source backup tool for InnoDB and XtraDB.
21.5.1.8.1. Percona yum Repository
21.5.1.8.2. Creating an Incremental Backup
21.5.2. Snapshot Backup
21.5.2.1. LVM Snapshot
21.5.2.2. Btrfs Snapshot

21.1. User Account Management

21.1.1. Create User

CREATE USER user [IDENTIFIED BY [PASSWORD] 'password']
    [, user [IDENTIFIED BY [PASSWORD] 'password']] ...
			
CREATE USER 'test'@'xxx.xxx.xxx.xxx' IDENTIFIED BY  'your_password';
			
CREATE USER 'root'@'192.168.1.%' IDENTIFIED BY 'password';
			

add a new user by grant

			
GRANT ALL PRIVILEGES ON opencart.* TO 'neo'@'localhost' IDENTIFIED BY 'chen' WITH GRANT OPTION;

GRANT ALL PRIVILEGES ON *.* TO 'neo'@'localhost' IDENTIFIED BY 'chen' WITH GRANT OPTION;

FLUSH PRIVILEGES;
			
			

MySQL 8.0

			
mysql> CREATE USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'pMQiEge1ikst7S_6tlXzBOmt_4b';
Query OK, 0 rows affected (0.06 sec)

mysql> grant all on *.* to 'root'@'%';
Query OK, 0 rows affected (0.11 sec)

			
			

21.1.2. Drop User

DROP USER user [, user] ...
			
			
mysql> drop user 'root'@'%';
Query OK, 0 rows affected (0.02 sec)
			
mysql> drop user admin@'localhost';
Query OK, 0 rows affected (0.00 sec)

mysql> drop user admin@'127.0.0.1';
Query OK, 0 rows affected (0.00 sec)
			
			

21.1.3. Rename User

RENAME USER old_user TO new_user [, old_user TO new_user] ...
			

21.1.4. SET PASSWORD

mysql 5.7 之前的版本

SET PASSWORD FOR 'bob'@'%.loc.gov' = PASSWORD('newpass');

SET PASSWORD FOR 'root'@'%' = PASSWORD('co2uqAMAho1aSOS62146Xoci6ogu4I');
			

MySQL 5.7

ALTER USER 'root'@'localhost' IDENTIFIED BY 'your_password';