数据库转模型图

Navicat Premium 数据库管理客户端工具，

选择已经连接的数据库，右键，逆向数据库到模型，即可生成表模型

生成结果

0或1个：

唯一1个：

  

0个或多个：

符号：

0个：O

0个或1个：|O 

唯一1个（有且仅1个）：| |

0个或多个：O<

1个或多个：|<

多个：< 

 如常见的外键关系：

 auth_group_permissions

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for auth_group_permissions
-- ----------------------------
DROP TABLE IF EXISTS `auth_group_permissions`;
CREATE TABLE `auth_group_permissions` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `group_id` int(11) NOT NULL,
  `permission_id` int(11) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `auth_group_permissions_group_id_permission_id_0cd325b0_uniq` (`group_id`,`permission_id`),
  KEY `auth_group_permissio_permission_id_84c5c92e_fk_auth_perm` (`permission_id`),
  CONSTRAINT `auth_group_permissio_permission_id_84c5c92e_fk_auth_perm` FOREIGN KEY (`permission_id`) REFERENCES `auth_permission` (`id`),
  CONSTRAINT `auth_group_permissions_group_id_b120cbf9_fk_auth_group_id` FOREIGN KEY (`group_id`) REFERENCES `auth_group` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

 auth_group

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for auth_group
-- ----------------------------
DROP TABLE IF EXISTS `auth_group`;
CREATE TABLE `auth_group` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(150) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

auth_permission

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for auth_permission
-- ----------------------------
DROP TABLE IF EXISTS `auth_permission`;
CREATE TABLE `auth_permission` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(255) NOT NULL,
  `content_type_id` int(11) NOT NULL,
  `codename` varchar(100) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `auth_permission_content_type_id_codename_01ab375a_uniq` (`content_type_id`,`codename`),
  CONSTRAINT `auth_permission_content_type_id_2f476e4b_fk_django_co` FOREIGN KEY (`content_type_id`) REFERENCES `django_content_type` (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=53 DEFAULT CHARSET=utf8;

django_content_type

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for django_content_type
-- ----------------------------
DROP TABLE IF EXISTS `django_content_type`;
CREATE TABLE `django_content_type` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `app_label` varchar(100) NOT NULL,
  `model` varchar(100) NOT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `django_content_type_app_label_model_76bd3d3b_uniq` (`app_label`,`model`)
) ENGINE=InnoDB AUTO_INCREMENT=14 DEFAULT CHARSET=utf8;

django_admin_log

SET FOREIGN_KEY_CHECKS=0;

-- ----------------------------
-- Table structure for django_admin_log
-- ----------------------------
DROP TABLE IF EXISTS `django_admin_log`;
CREATE TABLE `django_admin_log` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `action_time` datetime(6) NOT NULL,
  `object_id` longtext,
  `object_repr` varchar(200) NOT NULL,
  `action_flag` smallint(5) unsigned NOT NULL,
  `change_message` longtext NOT NULL,
  `content_type_id` int(11) DEFAULT NULL,
  `user_id` int(11) NOT NULL,
  PRIMARY KEY (`id`),
  KEY `django_admin_log_content_type_id_c4bce8eb_fk_django_co` (`content_type_id`),
  KEY `django_admin_log_user_id_c564eba6_fk_auth_user_id` (`user_id`),
  CONSTRAINT `django_admin_log_content_type_id_c4bce8eb_fk_django_co` FOREIGN KEY (`content_type_id`) REFERENCES `django_content_type` (`id`),
  CONSTRAINT `django_admin_log_user_id_c564eba6_fk_auth_user_id` FOREIGN KEY (`user_id`) REFERENCES `auth_user` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;