比较 dbdiagram.io、DBeaver 和 A5M2 以自动生成 ER 图。

介绍

本文比较了以下三种自动生成用于数据库设计的ER图的工具。

• dbdiagram.io
• DBeaver
• A5：SQL Mk-2 (A5M2)

前几天，我在奇塔上发了这篇文章，很多人看到了这篇文章，也收到了很多评论。

许多人评论了 ER 图的推荐工具。

这次，我们将尝试免费使用的三个工具的“自动生成ER图”功能。

作为比较的结论，我觉得〇〇不是最好的，但是每个工具都有多种功能，可以做不同的事情，所以我以后使用它们时，我想根据用途使用它们和工作环境。

目录

下面是每个工具的说明。

1. DB dia g 等人。艾欧
　1-1. 开始
　1-2. 使用
　1-3. 印象
2.DBeaver
　2-1. 开始
　2-2. 使用
　2-3. 印象
3. A5：SQL Mk-2（A5M2）
　3-1. 开始
　3-2. 使用
　3-3. 印象

环境

• macOS Big Sur 版本：11.6
• 自制版本：3.5.4
• DBeaver 版本：22.1.4
• A5：SQL Mk-2 (A5M2) 版本：2.17.2

继续上一篇文章，我们将使用 Docker 和 MySQL 创建的数据库作为 Web 应用程序组合作为示例。

1. DB dia g 等人。艾欧

dbdiagram.io 是一个免费且简单的工具，用于输入 DSL 代码和绘制数据库图 (ERD)。 dbdiagram 使用常见的 DBML（数据库标记语言）。

你可以用 dbdiagram.io 做什么是

• 从 SQL 转储文件 (DDL) 快速生成图表（ER 图表）
• 可以直接生成SQL语句（DDL）创建数据库表

等等。

1-1. 开始

访问应用页面并使用 Google 帐户登录后，您可以立即在浏览器上开始使用它。

1-2. 使用

按照以下步骤自动生成 ER 图。

① 创建 SQL 转储文件（DDL）
② 生成ER图

① 创建 SQL 转储文件（DDL）

首先，我使用 Sequel Ace（macOS 的 MySQL/MariaDB 数据库管理工具）准备了一个 SQL 转储文件 (DDL)。 （我现在正在使用另一个工具......）

这是我为导入 dbdiagram.io 而创建的 SQL 转储文件。

用于导入 dbdiagram.io 的 SQL 转储文件

我是按照上面文章中的方法创建的，但是作为准备，注释掉#会导致SQL出错，所以我删除了所有以#开头的行。

此外，LOCK 和 UNLOCK 已被删除，因为它们在导入 dbdiagram.io 时会导致错误。

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
SET NAMES utf8mb4;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE='NO_AUTO_VALUE_ON_ZERO', SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;

DROP TABLE IF EXISTS `child_read_record`;

CREATE TABLE `child_read_record` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `read_record_id` bigint unsigned NOT NULL,
  `child_id` bigint unsigned NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `child_read_record_read_record_id_foreign` (`read_record_id`),
  KEY `child_read_record_child_id_foreign` (`child_id`),
  CONSTRAINT `child_read_record_child_id_foreign` FOREIGN KEY (`child_id`) REFERENCES `children` (`id`) ON DELETE CASCADE,
  CONSTRAINT `child_read_record_read_record_id_foreign` FOREIGN KEY (`read_record_id`) REFERENCES `read_records` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `children`;

CREATE TABLE `children` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `family_id` bigint unsigned NOT NULL,
  `name` varchar(100) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `gender_code` int DEFAULT NULL,
  `birthday` date DEFAULT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `children_family_id_foreign` (`family_id`),
  CONSTRAINT `children_family_id_foreign` FOREIGN KEY (`family_id`) REFERENCES `families` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- LOCK TABLES `children` WRITE;
/*!40000 ALTER TABLE `children` DISABLE KEYS */;

INSERT INTO `children` (`id`, `family_id`, `name`, `gender_code`, `birthday`, `created_at`, `updated_at`)
VALUES
	(1,1,'ゆきまさ',1,'2020-04-01','2022-07-15 06:45:00','2022-07-15 06:45:00'),
	(2,1,'みくり',2,'2021-04-01','2022-07-15 06:45:00','2022-07-15 06:45:00'),
	(3,2,'お子さま',0,NULL,'2022-07-15 06:50:06','2022-07-15 06:50:06');

/*!40000 ALTER TABLE `children` ENABLE KEYS */;
-- UNLOCK TABLES;

DROP TABLE IF EXISTS `contacts`;

CREATE TABLE `contacts` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `email` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `nickname` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `name` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `title` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `body` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `failed_jobs`;

CREATE TABLE `failed_jobs` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `connection` text COLLATE utf8mb4_unicode_ci NOT NULL,
  `queue` text COLLATE utf8mb4_unicode_ci NOT NULL,
  `payload` longtext COLLATE utf8mb4_unicode_ci NOT NULL,
  `exception` longtext COLLATE utf8mb4_unicode_ci NOT NULL,
  `failed_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `families`;

CREATE TABLE `families` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL,
  `nickname` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `introduction` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `families_name_unique` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- LOCK TABLES `families` WRITE;
/*!40000 ALTER TABLE `families` DISABLE KEYS */;

INSERT INTO `families` (`id`, `name`, `nickname`, `introduction`, `created_at`, `updated_at`)
VALUES
	(1,'guest','ゲスト','ゲストログインユーザー用です。よろしくお願いします。','2022-07-15 06:45:00','2022-07-15 06:45:00'),
	(2,'y6E2867HyrBuG9fT','よんで','よろしくお願いします。','2022-07-15 06:50:06','2022-07-15 06:50:06');

/*!40000 ALTER TABLE `families` ENABLE KEYS */;
-- UNLOCK TABLES;

DROP TABLE IF EXISTS `follows`;

CREATE TABLE `follows` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `user_id` bigint unsigned NOT NULL,
  `family_id` bigint unsigned NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `follows_user_id_foreign` (`user_id`),
  KEY `follows_family_id_foreign` (`family_id`),
  CONSTRAINT `follows_family_id_foreign` FOREIGN KEY (`family_id`) REFERENCES `families` (`id`) ON DELETE CASCADE,
  CONSTRAINT `follows_user_id_foreign` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `invites`;

CREATE TABLE `invites` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `family_id` bigint unsigned NOT NULL,
  `email` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `token` varchar(16) COLLATE utf8mb4_unicode_ci NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `invites_token_unique` (`token`),
  KEY `invites_family_id_foreign` (`family_id`),
  CONSTRAINT `invites_family_id_foreign` FOREIGN KEY (`family_id`) REFERENCES `families` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- LOCK TABLES `invites` WRITE;
/*!40000 ALTER TABLE `invites` DISABLE KEYS */;

INSERT INTO `invites` (`id`, `family_id`, `email`, `token`, `created_at`, `updated_at`)
VALUES
	(1,2,'test2@test','9UyZzBbWeNL41Dcr','2022-07-15 06:51:23','2022-07-15 06:51:23');

/*!40000 ALTER TABLE `invites` ENABLE KEYS */;
-- UNLOCK TABLES;

DROP TABLE IF EXISTS `likes`;

CREATE TABLE `likes` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `user_id` bigint unsigned NOT NULL,
  `picture_book_id` bigint unsigned NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `likes_user_id_foreign` (`user_id`),
  KEY `likes_picture_book_id_foreign` (`picture_book_id`),
  CONSTRAINT `likes_picture_book_id_foreign` FOREIGN KEY (`picture_book_id`) REFERENCES `picture_books` (`id`) ON DELETE CASCADE,
  CONSTRAINT `likes_user_id_foreign` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `migrations`;

CREATE TABLE `migrations` (
  `id` int unsigned NOT NULL AUTO_INCREMENT,
  `migration` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `batch` int NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- LOCK TABLES `migrations` WRITE;
/*!40000 ALTER TABLE `migrations` DISABLE KEYS */;

INSERT INTO `migrations` (`id`, `migration`, `batch`)
VALUES
	(1,'2014_10_12_100000_create_password_resets_table',1),
	(2,'2019_08_19_000000_create_failed_jobs_table',1),
	(3,'2021_03_02_171654_create_families_table',1),
	(4,'2021_03_02_171655_create_users_table',1),
	(5,'2021_03_02_235959_create_children_table',1),
	(6,'2021_03_03_000000_create_picture_books_table',1),
	(7,'2021_03_05_000000_create_read_records_table',1),
	(8,'2021_03_06_000000_create_child_read_record_table',1),
	(9,'2021_05_10_155314_create_tags_table',1),
	(10,'2021_05_10_171704_create_read_record_tag_table',1),
	(11,'2021_05_11_132606_create_follows_table',1),
	(12,'2021_05_31_235959_create_likes_table',1),
	(13,'2021_06_09_180935_create_invites_table',1),
	(14,'2021_07_09_205018_create_contacts_table',1),
	(15,'2021_07_18_145514_add_column_soft_deletes_users_table',1);

/*!40000 ALTER TABLE `migrations` ENABLE KEYS */;
-- UNLOCK TABLES;

DROP TABLE IF EXISTS `password_resets`;

CREATE TABLE `password_resets` (
  `email` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `token` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  KEY `password_resets_email_index` (`email`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `picture_books`;

CREATE TABLE `picture_books` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `family_id` bigint unsigned NOT NULL,
  `user_id` bigint unsigned NOT NULL,
  `google_books_id` varchar(100) COLLATE utf8mb4_unicode_ci NOT NULL,
  `isbn_13` varchar(100) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `title` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `authors` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `published_date` varchar(100) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `description` varchar(1000) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `thumbnail_url` varchar(1000) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `five_star_rating` int NOT NULL,
  `read_status` int NOT NULL,
  `review` varchar(1000) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `picture_books_family_id_foreign` (`family_id`),
  KEY `picture_books_user_id_foreign` (`user_id`),
  CONSTRAINT `picture_books_family_id_foreign` FOREIGN KEY (`family_id`) REFERENCES `families` (`id`),
  CONSTRAINT `picture_books_user_id_foreign` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `read_record_tag`;

CREATE TABLE `read_record_tag` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `read_record_id` bigint unsigned NOT NULL,
  `tag_id` bigint unsigned NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `read_record_tag_read_record_id_foreign` (`read_record_id`),
  KEY `read_record_tag_tag_id_foreign` (`tag_id`),
  CONSTRAINT `read_record_tag_read_record_id_foreign` FOREIGN KEY (`read_record_id`) REFERENCES `read_records` (`id`) ON DELETE CASCADE,
  CONSTRAINT `read_record_tag_tag_id_foreign` FOREIGN KEY (`tag_id`) REFERENCES `tags` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `read_records`;

CREATE TABLE `read_records` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `picture_book_id` bigint unsigned NOT NULL,
  `family_id` bigint unsigned NOT NULL,
  `user_id` bigint unsigned NOT NULL,
  `memo` varchar(1000) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `read_date` date NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  KEY `read_records_picture_book_id_foreign` (`picture_book_id`),
  KEY `read_records_family_id_foreign` (`family_id`),
  KEY `read_records_user_id_foreign` (`user_id`),
  CONSTRAINT `read_records_family_id_foreign` FOREIGN KEY (`family_id`) REFERENCES `families` (`id`) ON DELETE CASCADE,
  CONSTRAINT `read_records_picture_book_id_foreign` FOREIGN KEY (`picture_book_id`) REFERENCES `picture_books` (`id`) ON DELETE CASCADE,
  CONSTRAINT `read_records_user_id_foreign` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `tags`;

CREATE TABLE `tags` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `tags_name_unique` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

DROP TABLE IF EXISTS `users`;

CREATE TABLE `users` (
  `id` bigint unsigned NOT NULL AUTO_INCREMENT,
  `family_id` bigint unsigned NOT NULL,
  `name` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `nickname` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `email` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL,
  `email_verified_at` timestamp NULL DEFAULT NULL,
  `password` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `remember_token` varchar(100) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `icon_path` varchar(255) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `relation` varchar(100) COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `created_at` timestamp NULL DEFAULT NULL,
  `updated_at` timestamp NULL DEFAULT NULL,
  `deleted_at` timestamp NULL DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `users_name_unique` (`name`),
  UNIQUE KEY `users_email_unique` (`email`,`deleted_at`),
  KEY `users_family_id_foreign` (`family_id`),
  CONSTRAINT `users_family_id_foreign` FOREIGN KEY (`family_id`) REFERENCES `families` (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

-- LOCK TABLES `users` WRITE;
/*!40000 ALTER TABLE `users` DISABLE KEYS */;

INSERT INTO `users` (`id`, `family_id`, `name`, `nickname`, `email`, `email_verified_at`, `password`, `remember_token`, `icon_path`, `relation`, `created_at`, `updated_at`, `deleted_at`)
VALUES
	(1,1,'guest_user','げん(ゲスト)','guest_user@guest.com','2022-07-15 06:45:01',NULL,NULL,'image/1.jpg','パパ','2022-07-15 06:45:01','2022-07-15 06:45:01',NULL),
	(2,1,'guest_partner','ゆい(パートナー)','guest_partner@guest.com','2022-07-15 06:45:01',NULL,NULL,'image/2.jpg','ママ','2022-07-15 06:45:01','2022-07-15 06:45:01',NULL),
	(3,2,'kWJ1A7fhlzUZXDAb','やまて','test@test','2022-07-15 06:50:41','$2y$10$JCbzpFTNRTTbYfh9jxp.u.0JB6AETjnJitwofj3tv4Mi7Gn/GyCTm',NULL,NULL,NULL,'2022-07-15 06:50:06','2022-07-15 06:50:41',NULL);

/*!40000 ALTER TABLE `users` ENABLE KEYS */;
-- UNLOCK TABLES;

/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;

② 生成ER图

打开 dbdiagram.io（登录）。

要从 SQL 转储文件生成 ER 图，

按屏幕顶部工具栏上的“导入”→“从 MySQL 导入”。

在下一个屏幕上，上传步骤①中准备的 SQL 转储文件。

上传完成后，自动生成完成，右侧显示ER图，左侧显示作为ER图来源的DBML。

自动生成的 DBML 全文

Table "child_read_record" {
  "id" bigint [pk, not null, increment]
  "read_record_id" bigint [not null]
  "child_id" bigint [not null]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  read_record_id [name: "child_read_record_read_record_id_foreign"]
  child_id [name: "child_read_record_child_id_foreign"]
}
}

Table "children" {
  "id" bigint [pk, not null, increment]
  "family_id" bigint [not null]
  "name" varchar(100) [default: NULL]
  "gender_code" int [default: NULL]
  "birthday" date [default: NULL]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  family_id [name: "children_family_id_foreign"]
}
}

Table "contacts" {
  "id" bigint [pk, not null, increment]
  "email" varchar(255) [not null]
  "nickname" varchar(255) [not null]
  "name" varchar(255) [default: NULL]
  "title" varchar(255) [default: NULL]
  "body" varchar(255) [not null]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]
}

Table "failed_jobs" {
  "id" bigint [pk, not null, increment]
  "connection" text [not null]
  "queue" text [not null]
  "payload" longtext [not null]
  "exception" longtext [not null]
  "failed_at" timestamp [not null, default: `CURRENT_TIMESTAMP`]
}

Table "families" {
  "id" bigint [pk, not null, increment]
  "name" varchar(100) [not null]
  "nickname" varchar(255) [default: NULL]
  "introduction" varchar(255) [default: NULL]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  name [unique, name: "families_name_unique"]
}
}

Table "follows" {
  "id" bigint [pk, not null, increment]
  "user_id" bigint [not null]
  "family_id" bigint [not null]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  user_id [name: "follows_user_id_foreign"]
  family_id [name: "follows_family_id_foreign"]
}
}

Table "invites" {
  "id" bigint [pk, not null, increment]
  "family_id" bigint [not null]
  "email" varchar(255) [not null]
  "token" varchar(16) [not null]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  token [unique, name: "invites_token_unique"]
  family_id [name: "invites_family_id_foreign"]
}
}

Table "likes" {
  "id" bigint [pk, not null, increment]
  "user_id" bigint [not null]
  "picture_book_id" bigint [not null]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  user_id [name: "likes_user_id_foreign"]
  picture_book_id [name: "likes_picture_book_id_foreign"]
}
}

Table "migrations" {
  "id" int [pk, not null, increment]
  "migration" varchar(255) [not null]
  "batch" int [not null]
}

Table "password_resets" {
  "email" varchar(255) [not null]
  "token" varchar(255) [not null]
  "created_at" timestamp [default: NULL]

Indexes {
  email [name: "password_resets_email_index"]
}
}

Table "picture_books" {
  "id" bigint [pk, not null, increment]
  "family_id" bigint [not null]
  "user_id" bigint [not null]
  "google_books_id" varchar(100) [not null]
  "isbn_13" varchar(100) [default: NULL]
  "title" varchar(255) [not null]
  "authors" varchar(255) [default: NULL]
  "published_date" varchar(100) [default: NULL]
  "description" varchar(1000) [default: NULL]
  "thumbnail_url" varchar(1000) [default: NULL]
  "five_star_rating" int [not null]
  "read_status" int [not null]
  "review" varchar(1000) [default: NULL]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  family_id [name: "picture_books_family_id_foreign"]
  user_id [name: "picture_books_user_id_foreign"]
}
}

Table "read_record_tag" {
  "id" bigint [pk, not null, increment]
  "read_record_id" bigint [not null]
  "tag_id" bigint [not null]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  read_record_id [name: "read_record_tag_read_record_id_foreign"]
  tag_id [name: "read_record_tag_tag_id_foreign"]
}
}

Table "read_records" {
  "id" bigint [pk, not null, increment]
  "picture_book_id" bigint [not null]
  "family_id" bigint [not null]
  "user_id" bigint [not null]
  "memo" varchar(1000) [default: NULL]
  "read_date" date [not null]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  picture_book_id [name: "read_records_picture_book_id_foreign"]
  family_id [name: "read_records_family_id_foreign"]
  user_id [name: "read_records_user_id_foreign"]
}
}

Table "tags" {
  "id" bigint [pk, not null, increment]
  "name" varchar(255) [not null]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]

Indexes {
  name [unique, name: "tags_name_unique"]
}
}

Table "users" {
  "id" bigint [pk, not null, increment]
  "family_id" bigint [not null]
  "name" varchar(255) [not null]
  "nickname" varchar(255) [default: NULL]
  "email" varchar(255) [not null]
  "email_verified_at" timestamp [default: NULL]
  "password" varchar(255) [default: NULL]
  "remember_token" varchar(100) [default: NULL]
  "icon_path" varchar(255) [default: NULL]
  "relation" varchar(100) [default: NULL]
  "created_at" timestamp [default: NULL]
  "updated_at" timestamp [default: NULL]
  "deleted_at" timestamp [default: NULL]

Indexes {
  name [unique, name: "users_name_unique"]
  (email, deleted_at) [unique, name: "users_email_unique"]
  family_id [name: "users_family_id_foreign"]
}
}

Ref "child_read_record_child_id_foreign":"children"."id" < "child_read_record"."child_id" [delete: cascade]

Ref "child_read_record_read_record_id_foreign":"read_records"."id" < "child_read_record"."read_record_id" [delete: cascade]

Ref "children_family_id_foreign":"families"."id" < "children"."family_id"

Ref "follows_family_id_foreign":"families"."id" < "follows"."family_id" [delete: cascade]

Ref "follows_user_id_foreign":"users"."id" < "follows"."user_id" [delete: cascade]

Ref "invites_family_id_foreign":"families"."id" < "invites"."family_id"

Ref "likes_picture_book_id_foreign":"picture_books"."id" < "likes"."picture_book_id" [delete: cascade]

Ref "likes_user_id_foreign":"users"."id" < "likes"."user_id" [delete: cascade]

Ref "picture_books_family_id_foreign":"families"."id" < "picture_books"."family_id"

Ref "picture_books_user_id_foreign":"users"."id" < "picture_books"."user_id"

Ref "read_record_tag_read_record_id_foreign":"read_records"."id" < "read_record_tag"."read_record_id" [delete: cascade]

Ref "read_record_tag_tag_id_foreign":"tags"."id" < "read_record_tag"."tag_id" [delete: cascade]

Ref "read_records_family_id_foreign":"families"."id" < "read_records"."family_id" [delete: cascade]

Ref "read_records_picture_book_id_foreign":"picture_books"."id" < "read_records"."picture_book_id" [delete: cascade]

Ref "read_records_user_id_foreign":"users"."id" < "read_records"."user_id" [delete: cascade]

Ref "users_family_id_foreign":"families"."id" < "users"."family_id"

表的位置好像考虑到了DBML中描述的表的顺序，图片的ER图的表放置手动移动到了我想放置的地方（保存后的状态为移动）。

下面是我尝试导出的 PNG 文件。

1-3. 印象

• 我认为ER图的设计很简单，很酷，很容易阅读。
• 创建图表非常容易，因为您只需要准备一个 SQL 转储文件并将其导出即可。
• 我还发现能够从 ER 图生成 DDL 很有用。
• 使用 DBML（dbdiagram.io 表示法）编写时，理解该表示法需要学习成本，但似乎没有那么困难。
• 由于它不在VSCode扩展中，而且似乎GitHub不支持该符号，我将基本上在dbdiagram.io屏幕上工作。
• 由于团队使用（协作编辑）是收费的，我认为免费版是为了共享导出的文件。

2.DBeaver

DBeaver 是一个数据库管理工具。

有付费版和免费版，甚至免费版都可以自动生成ER图。

它支持各种数据库，而且似乎用途广泛。这次没试过，不过好像也可以从ER图生成DDL。

2-1. 开始

下载 DBeaver。

2-2. 使用

打开 DBeaver 应用程序。如果使用 DBeaver 连接到数据库，可以立即显示 ER 图。

① 添加数据库（MySQL连接）
② ER图的显示

① 添加数据库（MySQL连接）

打开 DBeaver 应用程序并连接到您的数据库。

选择一个数据库并

下载必要的驱动程序和

连接到数据库。

② ER图的显示

您所要做的就是在左侧边栏中选择数据库并打开“ER 图”选项卡。

2-3. 印象

• 我认为ER图的设计非常容易阅读。由于实体（表）和关系（线）的位置是自动生成的，几乎没有重叠，我觉得没有必要手动调整。
• 我觉得很容易阅读，因为主键显示在右侧，外键显示在左侧。
• 这次想尝试的是自动生成ER图，但是作为一个数据库管理工具，它支持各种数据库，功能也很多，所以我觉得如果能掌握的话会很方便。

3. A5：SQL Mk-2（A5M2）

A5：SQL Mk-2 是一款免费的 SQL 客户端，旨在支持复杂的数据库开发。

它的开发目标是功能强大、重量轻且易于使用。

除了执行 SQL 和编辑表之外，您还可以获取 SQL 执行计划和创建 ER 图。

3-1. 开始

因为它有点长A5M2(A5：SQL Mk-2) 在 macOS 上的总结在这篇文章中。

3-2. 使用

按照以下步骤自动生成 ER 图。

① 添加数据库（MySQL连接）
② 生成ER图

① 添加数据库（MySQL连接）

启动 A5M2。

按“注册表”并继续连接数据库。

让我们连接到 Web 应用程序（组合）的数据库。

② 生成ER图

从数据库中创建的表生成 ER 图。

按工具栏“数据库”→“ER图”→“ER图的反向生成”。

选择表格

按“生成反向 ER 图”。

这个ER图是手动改变的实体（表）的位置关系。

3-3. 印象

• A5M2的GUI和ER图设计比较简单，但是可以自动从表生成ER图，也可以生成DDL从ER图创建表，非常方便。
• 自开发开始以来似乎已经过去了 25 年（哇...），但它似乎仍在维护中，并且仍然很活跃。
• 在Qiita的文章和Hatena书签的评论中，我想推荐A5M2的人很多，我很服气。

概括

这次尝试了三个工具的“自动生成ER图”的功能，但是每个工具都有不同的功能，所以以后想了解一下功能，根据用途使用。我在想。

非常感谢。

原创声明：本文系作者授权爱码网发表，未经许可，不得转载;

原文地址：https://www.likecs.com/show-308623420.html