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首先,使用DESC命令检查MySQL数据库。
mysql>DESC mysql.db;
以下是输出。
+-----------------------+---------------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-----------------------+---------------+------+-----+---------+-------+ | Host | char(|60) | NO | PRI | | | | | | Db | char(|64) | NO | PRI | | | | | | User | char(|32) | NO | PRI | | | | | | Select_priv | enum('N','Y') | NO | | N | | | | Insert_priv | enum('N','Y') | NO | | N | | | | Update_priv | enum('N','Y') | NO | | N | | | | Delete_priv | enum('N','Y') | NO | | N | | | | Create_priv | enum('N','Y') | NO | | N | | | | Drop_priv | enum('N','Y') | NO | | N | | | | Grant_priv | enum('N','Y') | NO | | N | | | | References_priv | enum('N','Y') | NO | | N | | | | Index_priv | enum('N','Y') | NO | | N | | | | Alter_priv | enum('N','Y') | NO | | N | | | | Create_tmp_table_priv | enum('N','Y') | NO | | N | | | | Lock_tables_priv | enum('N','Y') | NO | | N | | | | Create_view_priv | enum('N','Y') | NO | | N | | | | Show_view_priv | enum('N','Y') | NO | | N | | | | Create_routine_priv | enum('N','Y') | NO | | N | | | | Alter_routine_priv | enum('N','Y') | NO | | N | | | | Execute_priv | enum('N','Y') | NO | | N | | | | Event_priv | enum('N','Y') | NO | | N | | | | Trigger_priv | enum('N','Y') | NO | | N | | | +-----------------------+---------------+------+-----+---------+-------+ 22 Zeilen in Set (0.06 sec)
Nun schauen wir uns die Abfrage zur Berechtigungszuweisung an.
mysql> UPDATE mysql.user SET Super_Priv='Y' WHERE user='Manish' AND host='%'; Zeilen gematcht: 1 Geändert: 0 Warnungen: 0
Nun lassen wir uns die Tabelle mit dem Befehl DESC anzeigen.
mysql> desc mysql.user; +------------------------+-----------------------------------+------+-----+-----------------------+-------+ | Field | Type | Null | Key | Default | Extra | +------------------------+-----------------------------------+------+-----+-----------------------+-------+ | Host | char(|60) | NO | PRI | | | | | | | User | char(|32) | NO | PRI | | | | | | | Select_priv | enum('N','Y') | NO | | N | | | | | Insert_priv | enum('N','Y') | NO | | N | | | | | Update_priv | enum('N','Y') | NO | | N | | | Delete_priv | enum('N','Y') | NO | | N | | | Create_priv | enum('N','Y') | NO | | N | | | Drop_priv | enum('N','Y') | NO | | N | | | Reload_priv | enum('N','Y') | NO | | N | | | Shutdown_priv | enum('N','Y') | NO | | N | | | Process_priv | enum('N','Y') | NO | | N | | | File_priv | enum('N','Y') | NO | | N | | | Grant_priv | enum('N','Y') | NO | | N | | | References_priv | enum('N','Y') | NO | | N | | | | | Index_priv | enum('N','Y') | NO | | N | | | | | Alter_priv | enum('N','Y') | NO | | N | | | | | Show_db_priv | enum('N','Y') | NO | | N | | | | | Super_priv | enum('N','Y') | NO | | N | | | | | Create_tmp_table_priv | enum('N','Y') | NO | | N | | | | | Lock_tables_priv | enum('N','Y') | NO | | N | | | | | Execute_priv | enum('N','Y') | NO | | N | | | | | Repl_slave_priv | enum('N','Y') | NO | | N | | | | | Repl_client_priv | enum('N','Y') | NO | | N | | | | | Create_view_priv | enum('N','Y') | NO | | N | | | | | Show_view_priv | enum('N','Y') | NO | | N | | | | | Create_routine_priv | enum('N','Y') | NO | | N | | | | | Alter_routine_priv | enum('N','Y') | NO | | N | | | | | Create_user_priv | enum('N','Y') | NO | | N | | | | | Event_priv | enum('N','Y') | NO | | N | | | | | Trigger_priv | enum('N','Y') | NO | | N | | | | | Create_tablespace_priv | enum('N','Y') | NO | | N | | | | | ssl_type | enum('','ANY','X')509','SPECIFIED') | NO | | | | | | ssl_cipher | blob | NO | | NULL | | | x |509_issuer | blob | NO | | NULL | | | x |509_subject | blob | NO | | NULL | | | max_questions | int( |11) unsigned | NO | | 0 | | | max_updates | int( |11) unsigned | NO | | 0 | | | max_connections | int( |11) unsigned | NO | | 0 | | | max_user_connections | int( |11) unsigned | NO | | 0 | | | plugin | char( |64) | NO | | caching_sha | |2_password | | | authentication_string | text | YES | | NULL | | | | | password_expired | enum('N','Y') | NO | | N | | caching_sha | | | password_last_changed | timestamp | YES | | NULL | | | password_lifetime | smallint(5) unsigned | YES | | NULL | | | account_locked | enum('N','Y') | NO | | N | | | Create_role_priv | enum('N','Y') | NO | | N | | | Drop_role_priv | enum('N','Y') | NO | | N | | | Password_reuse_history | smallint(5) unsigned | YES | | NULL | | | Password_reuse_time | smallint(5) unsigned | YES | | NULL | | +------------------------+-----------------------------------+------+-----+-----------------------+-------+ 49 Zeilen in Set (0.01 sec)
In der obigen Tabelle können Sie leicht die hinzugefügten Privilegien sehen. Um Superrechte auf die MySQL-Datenbank hinzuzufügen, ist die folgende Syntax erforderlich.
mysql> GRANT SUPER ON *.* TO user@'localhost' IDENTIFIED BY 'passwordName';
Nachdem Sie die obige Abfrage ausgeführt haben, vergessen Sie nicht, sie mit dem folgenden Befehl abzuschließen.
FLUSH PRIVILEGES;