MySQL賬戶表是一個關鍵的數據庫結構，用于存儲數據庫用戶的登錄信息和權限。在MySQL中，每個賬戶都有一個唯一的用戶名和密碼。

CREATE TABLE mysql.user (
Host           char(60)  NOT NULL DEFAULT '',
User           char(16)  NOT NULL DEFAULT '',
Password       char(41)      DEFAULT NULL,
Select_priv    enum('N','Y') NOT NULL DEFAULT 'N',
Insert_priv    enum('N','Y') NOT NULL DEFAULT 'N',
Update_priv    enum('N','Y') NOT NULL DEFAULT 'N',
Delete_priv    enum('N','Y') NOT NULL DEFAULT 'N',
Create_priv    enum('N','Y') NOT NULL DEFAULT 'N',
Drop_priv      enum('N','Y') NOT NULL DEFAULT 'N',
Reload_priv    enum('N','Y') NOT NULL DEFAULT 'N',
Shutdown_priv  enum('N','Y') NOT NULL DEFAULT 'N',
Process_priv   enum('N','Y') NOT NULL DEFAULT 'N',
File_priv      enum('N','Y') NOT NULL DEFAULT 'N',
Grant_priv     enum('N','Y') NOT NULL DEFAULT 'N',
References_priv enum('N','Y') NOT NULL DEFAULT 'N',
Index_priv     enum('N','Y') NOT NULL DEFAULT 'N',
Alter_priv     enum('N','Y') NOT NULL DEFAULT 'N',
Show_db_priv   enum('N','Y') NOT NULL DEFAULT 'N',
Super_priv     enum('N','Y') NOT NULL DEFAULT 'N',
Create_tmp_table_priv enum('N','Y') NOT NULL DEFAULT 'N',
Lock_tables_priv      enum('N','Y') NOT NULL DEFAULT 'N',
Execute_priv   enum('N','Y') NOT NULL DEFAULT 'N',
Repl_slave_priv enum('N','Y') NOT NULL DEFAULT 'N',
Repl_client_priv enum('N','Y') NOT NULL DEFAULT 'N',
Create_view_priv enum('N','Y') NOT NULL DEFAULT 'N',
Show_view_priv  enum('N','Y') NOT NULL DEFAULT 'N',
Create_routine_priv enum('N','Y') NOT NULL DEFAULT 'N',
Alter_routine_priv enum('N','Y') NOT NULL DEFAULT 'N',
Create_user_priv enum('N','Y') NOT NULL DEFAULT 'N',
Event_priv     enum('N','Y') NOT NULL DEFAULT 'N',
Trigger_priv   enum('N','Y') NOT NULL DEFAULT 'N',
Create_tablespace_priv enum('N','Y') NOT NULL DEFAULT 'N',
ssl_type       enum('','ANY','X509','SPECIFIED') DEFAULT NULL,
ssl_cipher     blob           DEFAULT NULL,
x509_issuer    blob           DEFAULT NULL,
x509_subject   blob           DEFAULT NULL,
authentication_string text         /*!50123 PASSWORD ... */,
password_expired enum('N','Y') NOT NULL DEFAULT 'N',
password_last_changed timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
password_lifetime smallint(5) unsigned DEFAULT NULL,
account_locked enum('N','Y') NOT NULL DEFAULT 'N',
PRIMARY KEY (Host,User)
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci COMMENT='Users and global privileges';

上面的代碼是MySQL賬戶表的示例。它定義了每個賬戶的字段，如用戶名和密碼，以及該賬戶具有的權限。通過管理MySQL賬戶表，管理員可以輕松地管理和授權數據庫用戶。