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第 21 章 Database Administration

目錄

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 資料庫維護
21.3.1. CHECK 檢查表
21.3.2. ANALYZE 分析表
21.3.3. CHECKSUM
21.3.4. OPTIMIZE 優化表
21.3.5. REPAIR 修復
21.4. INFORMATION_SCHEMA
21.4.1. 查詢表欄位
21.4.2. 列出所有觸發器
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. 備份表數據
21.5.1.5. source
21.5.1.6. 使用 mysqlhotcopy 備份 MyISAM 引擎的資料庫
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';