{"id":1910,"date":"2026-08-04T16:21:03","date_gmt":"2026-08-04T16:21:03","guid":{"rendered":"https:\/\/www.vpascode.com\/ja\/can-plantuml-draw-erd-complete-guide-free-tool-2\/"},"modified":"2026-08-04T16:21:03","modified_gmt":"2026-08-04T16:21:03","slug":"can-plantuml-draw-erd-complete-guide-free-tool-2","status":"publish","type":"post","link":"https:\/\/www.vpascode.com\/ja\/can-plantuml-draw-erd-complete-guide-free-tool-2\/","title":{"rendered":"PlantUML\u306fERD\u3092\u63cf\u3051\u307e\u3059\u304b\uff1f\u5b8c\u5168\u30ac\u30a4\u30c9\uff06\u7121\u6599\u30c4\u30fc\u30eb"},"content":{"rendered":"<p><strong>\u306f\u3044\u3001PlantUML\u306fERD\uff08\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff09\u3092\u63cf\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/strong>PlantUML\u306f\u3001\u6a19\u6e96\u306e\u60c5\u5831\u5de5\u5b66\uff08\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\uff09\u8868\u8a18\u6cd5\u304a\u3088\u3073\u53e4\u5178\u7684\u306aChen ERD\u8868\u8a18\u6cd5\u3092\u7528\u3044\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u30e2\u30c7\u30eb\u5316\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u30c6\u30ad\u30b9\u30c8\u30d9\u30fc\u30b9\u306e\u69cb\u6587\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u8005\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u306f\u3001\u8996\u899a\u7684\u306a\u8981\u7d20\u3092\u624b\u52d5\u3067\u30c9\u30e9\u30c3\u30b0\u30a2\u30f3\u30c9\u30c9\u30ed\u30c3\u30d7\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30af\u30ea\u30fc\u30f3\u3067\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u53ef\u80fd\u306aER\u56f3\u3092\u8fc5\u901f\u306b\u751f\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e3b\u30ad\u30fc\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u305f\u308a\u3001\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u3092\u5b9a\u7fa9\u3057\u305f\u308a\u3001\u8907\u96d1\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u95a2\u4fc2\u3092\u53ef\u8996\u5316\u3057\u305f\u308a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001PlantUML\u306f\u67d4\u8edf\u3067\u30b3\u30fc\u30c9\u30d5\u30a1\u30fc\u30b9\u30c8\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001PlantUML\u306eERD\u69cb\u6587\u3001\u57fa\u6570\u3001\u304a\u3088\u3073\u7121\u6599\u306ePlantUML\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u4f5c\u696d\u30d5\u30ed\u30fc\u3092\u52b9\u7387\u5316\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<strong>\u7121\u6599\u306ePlantUML\u30c4\u30fc\u30eb<\/strong>\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30d7\u30ec\u30d3\u30e5\u30fc\u6a5f\u80fd\u4ed8\u304d\u3002<\/p>\n<p><img fetchpriority=\"high\" alt=\"A split screen illustrating the Diagram-as-Code concept, showing PlantUML code generating a database Entity-Relationship Diagram with crow's foot relationships.\" class=\"alignnone size-full wp-image-1826\" decoding=\"async\" fetchpriority=\"high\" height=\"816\" sizes=\"(max-width: 1312px) 100vw, 1312px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-erd-diagram-as-code-guide.jpg\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-erd-diagram-as-code-guide.jpg 1312w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-erd-diagram-as-code-guide-300x187.jpg 300w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-erd-diagram-as-code-guide-1024x637.jpg 1024w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/plantuml-erd-diagram-as-code-guide-768x478.jpg 768w\" width=\"1312\"\/><\/p>\n<hr\/>\n<h2>\u306f\u3044\u3001PlantUML\u306fERD\u3092\u63cf\u3051\u307e\u3059\uff1a\u5373\u52b9\u56de\u7b54\u3068\u4e3b\u8981\u6a5f\u80fd<\/h2>\n<p>PlantUML\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u306a\u30de\u30fc\u30af\u30a2\u30c3\u30d7\u30c6\u30ad\u30b9\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\u306e\u4f5c\u6210\u3092\u6a19\u6e96\u3067\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u6a19\u6e96\u306e\u62e1\u5f35\u6a5f\u80fd\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u3092\u660e\u78ba\u304b\u3064\u6c7a\u5b9a\u8ad6\u7684\u306b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3057\u307e\u3059\u3002<\/p>\n<h3>PlantUML\u3067\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u308bERD\u8868\u8a18\u6cd5\uff08\u6a19\u6e96 vs. Chen ERD\uff09<\/h3>\n<p>PlantUML\u306f\u3001ER\u56f3\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306b2\u3064\u306e\u4e3b\u8981\u306a\u30b9\u30bf\u30a4\u30eb\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u60c5\u5831\u5de5\u5b66\uff08IE\uff09\u8868\u8a18\u6cd5\uff1a<\/strong>\u95a2\u4fc2\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30e2\u30c7\u30eb\u5316\u306b\u4f7f\u7528\u3055\u308c\u308b\u6a19\u6e96\u306e\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8868\u8a18\u6cd5\u3067\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u660e\u793a\u7684\u306a\u4e3b\u30ad\u30fc\u304a\u3088\u3073\u5916\u90e8\u30ad\u30fc\u306e\u30de\u30fc\u30af\u3092\u6301\u3064\u30c6\u30fc\u30d6\u30eb\u69cb\u9020\u3068\u3057\u3066\u8868\u73fe\u3057\u307e\u3059\u3002<\/li>\n<li><strong>Chen ERD\u8868\u8a18\u6cd5\uff1a<\/strong>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u9577\u65b9\u5f62\u3001\u5c5e\u6027\u3092\u6955\u5186\u3001\u95a2\u4fc2\u3092\u83f1\u5f62\u3067\u8868\u73fe\u3059\u308b\u6982\u5ff5\u30e2\u30c7\u30eb\u5316\u30b9\u30bf\u30a4\u30eb\u3067\u3059\u3002<\/li>\n<\/ul>\n<h3>PlantUML ERD\u306e\u57fa\u672c\u69cb\u6587\u3068\u30b3\u30fc\u30c9\u4f8b<\/h3>\n<p>\u4ee5\u4e0b\u306f\u3001\u6a19\u6e96\u306e\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8868\u8a18\u6cd5\u3092\u4f7f\u7528\u3057\u3066PlantUML\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u8a18\u8ff0\u3055\u308c\u305f\u3001\u6700\u5c0f\u9650\u306e\u52d5\u4f5c\u3059\u308b\u95a2\u4fc2ER\u56f3\u306e\u4f8b\u3067\u3059\uff1a<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Plantuml<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/#plantuml:VP11Yy8m48NlWVo7iISL2wlWHKGihiiMxQvqgzSIcm43JIFfz23M_svQAuY7lRtXEtppth8aOQdIEMSzEg56EET25PoHEGCPE1eYeq4gYnafum1dM92Y2tZx4gq7eeJA1RXo1Z1iSweap23yIM0-tsqMYuRu_eEZ5Yftz134g-yWxa-cqy63P1O5eKm5EPo4qVel2Q8TPxTNvw-LdTGqwMbjZ_-qxszzTNpeIfB8Kw5DLJJYp_KgZ89jV_mncWmwUTklhdtVN3lj33otKuQbnzaI2-a6l0C0\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 8px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>VPasCode\u3067Plantuml\u3092\u7de8\u96c6<\/span><br \/>\n<\/a>\n<\/div>\n<div class=\"vpascode-code-wrapper\">\n            <div class=\"vpascode-viewer-container vpascode-fancy-active\">\r\n                                <div class=\"vpascode-header\">\r\n                    <span class=\"vpascode-lang-label\">Plantuml<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:VP11Yy8m48NlWVo7iISL2wlWHKGihiiMxQvqgzSIcm43JIFfz23M_svQAuY7lRtXEtppth8aOQdIEMSzEg56EET25PoHEGCPE1eYeq4gYnafum1dM92Y2tZx4gq7eeJA1RXo1Z1iSweap23yIM0-tsqMYuRu_eEZ5Yftz134g-yWxa-cqy63P1O5eKm5EPo4qVel2Q8TPxTNvw-LdTGqwMbjZ_-qxszzTNpeIfB8Kw5DLJJYp_KgZ89jV_mncWmwUTklhdtVN3lj33otKuQbnzaI2-a6l0C0\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 8px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Plantuml in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"language-plantuml\"><code class=\"language-plantuml\" data-language=\"plantuml\" class=\"language-plantuml\">@startuml\r\n!theme plain\r\ntop to bottom direction\r\n\r\nentity \"User\" as user {\r\n  * user_id : INT &lt;&lt;PK&gt;&gt;\r\n  --\r\n  * email : VARCHAR(255)\r\n  * created_at : TIMESTAMP\r\n}\r\n\r\nentity \"Order\" as order {\r\n  * order_id : INT &lt;&lt;PK&gt;&gt;\r\n  --\r\n  * user_id : INT &lt;&lt;FK&gt;&gt;\r\n  * total_amount : DECIMAL(10,2)\r\n}\r\n\r\nuser ||--o{ order : \"places\"\r\n@enduml<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#plantuml:VP11Yy8m48NlWVo7iISL2wlWHKGihiiMxQvqgzSIcm43JIFfz23M_svQAuY7lRtXEtppth8aOQdIEMSzEg56EET25PoHEGCPE1eYeq4gYnafum1dM92Y2tZx4gq7eeJA1RXo1Z1iSweap23yIM0-tsqMYuRu_eEZ5Yftz134g-yWxa-cqy63P1O5eKm5EPo4qVel2Q8TPxTNvw-LdTGqwMbjZ_-qxszzTNpeIfB8Kw5DLJJYp_KgZ89jV_mncWmwUTklhdtVN3lj33otKuQbnzaI2-a6l0C0\" \r\n                       target=\"_blank\" \r\n                       rel=\"noopener noreferrer\" \r\n                       class=\"vpascode-fancy-btn\">\r\n                        <svg width=\"14\" height=\"14\" viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.5\" stroke-linecap=\"round\" stroke-linejoin=\"round\" style=\"margin-right: 6px;\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg>\r\n                        <span>Edit Plantuml in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n            <\/div>\r\n            \n<\/p><\/div>\n<div class=\"vpascode-actions\">\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/#plantuml:VP11Yy8m48NlWVo7iISL2wlWHKGihiiMxQvqgzSIcm43JIFfz23M_svQAuY7lRtXEtppth8aOQdIEMSzEg56EET25PoHEGCPE1eYeq4gYnafum1dM92Y2tZx4gq7eeJA1RXo1Z1iSweap23yIM0-tsqMYuRu_eEZ5Yftz134g-yWxa-cqy63P1O5eKm5EPo4qVel2Q8TPxTNvw-LdTGqwMbjZ_-qxszzTNpeIfB8Kw5DLJJYp_KgZ89jV_mncWmwUTklhdtVN3lj33otKuQbnzaI2-a6l0C0\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<svg fill=\"none\" height=\"14\" stroke=\"currentColor\" stroke-linecap=\"round\" stroke-linejoin=\"round\" stroke-width=\"2.5\" style=\"margin-right: 6px;\" viewbox=\"0 0 24 24\" width=\"14\"><path d=\"M11 4H4a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7\"><\/path><path d=\"M18.5 2.5a2.121 2.121 0 0 1 3 3L12 15l-4 1 1-4 9.5-9.5z\"><\/path><\/svg><br \/>\n<span>VPasCode\u3067Plantuml\u3092\u7de8\u96c6<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p>\u4ee5\u4e0b\u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u305fERD\u753b\u50cf\u3067\u3059\uff1a<br \/>\n<img alt=\"An example ERD editing in Visual Paradigm's VPasCode\" class=\"alignnone wp-image-1844 size-full\" decoding=\"async\" height=\"745\" sizes=\"(max-width: 1192px) 100vw, 1192px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7215bd11fe3.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7215bd11fe3.png 1192w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7215bd11fe3-300x188.png 300w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7215bd11fe3-1024x640.png 1024w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7215bd11fe3-768x480.png 768w\" width=\"1192\"\/><\/p>\n<hr\/>\n<h2>\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\uff1aPlantUML\u3067\u6700\u521d\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\u3092\u66f8\u304f\u65b9\u6cd5<\/h2>\n<p>PlantUML\u3067ERD\u3092\u69cb\u7bc9\u3059\u308b\u306b\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u5b9a\u7fa9\u3057\u3001\u30c7\u30fc\u30bf\u578b\u3068\u5236\u7d04\u3092\u5272\u308a\u5f53\u3066\u3001\u9069\u5207\u306a\u57fa\u6570\u63a5\u7d9a\u5b50\u3092\u4f7f\u3063\u3066\u95a2\u4fc2\u3092\u5ba3\u8a00\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u5c5e\u6027\u3001\u4e3b\u30ad\u30fc\uff0f\u5916\u90e8\u30ad\u30fc\u306e\u5b9a\u7fa9<\/h3>\n<p>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u3001<code>entity<\/code>\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u5ba3\u8a00\u3057\u307e\u3059\u3002\u5c5e\u6027\u306f\u6ce2\u304b\u3063\u3053\u5185\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002\u30c0\u30c3\u30b7\u30e5\u306b\u3088\u308b\u533a\u5207\u308a\u7dda\uff08<code>--<\/code>\uff09\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e3b\u30ad\u30fc\u3001\u5916\u90e8\u30ad\u30fc\u3001\u304a\u3088\u3073\u4e00\u822c\u7684\u306a\u5217\u3092\u533a\u5225\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u4e3b\u30ad\u30fc\uff08PK\uff09\uff1a<\/strong> \u30a2\u30b9\u30bf\u30ea\u30b9\u30af\uff08\uff09\u3067\u793a\u3055\u308c\u3066\u3044\u307e\u3059<code>*<\/code>\uff09\u3067\u30bf\u30b0\u4ed8\u3051\u3055\u308c\u3066\u3044\u307e\u3059<code>&lt;&lt;PK&gt;&gt;<\/code>.<\/li>\n<li><strong>\u5916\u90e8\u30ad\u30fc\uff08FK\uff09\uff1a<\/strong> \u4ee5\u4e0b\u3067\u30de\u30fc\u30af\u3055\u308c\u3066\u3044\u307e\u3059<code>&lt;&lt;FK&gt;&gt;<\/code> \u95a2\u4fc2\u53c2\u7167\u3092\u8868\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u5fc5\u9808\u30d5\u30a3\u30fc\u30eb\u30c9\uff1a<\/strong> \u30a2\u30b9\u30bf\u30ea\u30b9\u30af\uff08\uff09\u3092\u4f7f\u7528\u3057\u3066\u5f37\u8abf\u8868\u793a\u3055\u308c\u307e\u3059<code>*<\/code> \u5217\u540d\u306e\u524d\u306b\uff08\uff09\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30de\u30c3\u30d4\u30f3\u30b0\u306e\u57fa\u6570\u3068\u95a2\u4fc2\u30bf\u30a4\u30d7\uff081:1\u30011:N\u3001N:M\uff09<\/h3>\n<p>\u95a2\u4fc2\u30e9\u30a4\u30f3\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u304c\u3069\u306e\u3088\u3046\u306b\u30ea\u30f3\u30af\u3059\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002PlantUML\u306f\u3001\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u63a5\u7d9a\u5b50\u3092\u63cf\u753b\u3059\u308b\u305f\u3081\u306b\u7279\u5b9a\u306e\u6587\u5b57\u7d44\u307f\u5408\u308f\u305b\u3092\u4f7f\u7528\u3057\u307e\u3059\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u69cb\u6587<\/th>\n<th>\u8a18\u53f7\u306e\u610f\u5473<\/th>\n<th>\u95a2\u4fc2\u30bf\u30a4\u30d7<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>||--||<\/code><\/td>\n<td>\u6b63\u78ba\u306b1\u3064\u304b\u3089\u6b63\u78ba\u306b1\u3064<\/td>\n<td>1\u5bfe1\uff081:1\uff09<\/td>\n<\/tr>\n<tr>\n<td><code>||--o{<\/code><\/td>\n<td>\u6b63\u78ba\u306b1\u3064\u304b\u30890\u3064\u307e\u305f\u306f\u8907\u6570<\/td>\n<td>1\u5bfe\u591a\uff081:N\uff09<\/td>\n<\/tr>\n<tr>\n<td><code>}|--|{<\/code><\/td>\n<td>1\u3064\u307e\u305f\u306f\u8907\u6570\u304b\u30891\u3064\u307e\u305f\u306f\u8907\u6570<\/td>\n<td>\u591a\u5bfe\u591a\uff08N:M\uff09<\/td>\n<\/tr>\n<tr>\n<td><code>|o--o{<\/code><\/td>\n<td>0\u3064\u307e\u305f\u306f1\u3064\u304b\u30890\u3064\u307e\u305f\u306f\u8907\u6570<\/td>\n<td>\u30aa\u30d7\u30b7\u30e7\u30f3\u306e1\u5bfe\u591a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr\/>\n<h2>PlantUML ERD\u306e\u4e00\u822c\u7684\u306a\u554f\u984c\u70b9\u3068\u5236\u9650\u3092\u514b\u670d\u3059\u308b<\/h2>\n<p>PlantUML\u306f\u5f37\u529b\u3067\u3059\u304c\u3001\u30ed\u30fc\u30ab\u30ebCLI\u30c4\u30fc\u30eb\u3084\u30b5\u30fc\u30d0\u30fc\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u306f\u3001\u958b\u767a\u8005\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306b\u6469\u64e6\u3092\u751f\u3058\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u69cb\u6587\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068AI\u99c6\u52d5\u306e\u30a8\u30e9\u30fc\u4fee\u6b63<\/h3>\n<p>PlantUML\u3067\u62ec\u5f27\u304c\u6b20\u3051\u3066\u3044\u308b\u3001\u307e\u305f\u306f\u95a2\u4fc2\u6027\u306e\u69cb\u6587\u304c\u7121\u52b9\u306a\u5834\u5408\u3001\u660e\u78ba\u306a\u30c7\u30d0\u30c3\u30b0\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u306a\u3057\u306b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u304c\u505c\u6b62\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5927\u898f\u6a21\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u5185\u306e\u8aa4\u5b57\u3092\u767a\u898b\u3059\u308b\u306b\u306f\u3001\u8cb4\u91cd\u306a\u958b\u767a\u6642\u9593\u304c\u304b\u304b\u308a\u307e\u3059\u3002<\/p>\n<h3>\u8907\u96d1\u306a\u30b9\u30ad\u30fc\u30de\u3068\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u53ef\u8aad\u6027\u306e\u7ba1\u7406<\/h3>\n<p>\u30b9\u30ad\u30fc\u30de\u304c\u6570\u5341\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u307e\u3067\u62e1\u5927\u3059\u308b\u3068\u3001Graphviz\u306e\u81ea\u52d5\u30ec\u30a4\u30a2\u30a6\u30c8\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u3088\u3063\u3066\u95a2\u4fc2\u7dda\u304c\u91cd\u8907\u3059\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u958b\u767a\u8005\u306f\u3001\u30ec\u30a4\u30a2\u30a6\u30c8\u6307\u793a\u3092\u52b9\u7387\u7684\u306b\u8abf\u6574\u3067\u304d\u308b\u5373\u6642\u8996\u899a\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u63d0\u4f9b\u3059\u308b\u30c4\u30fc\u30eb\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002<\/p>\n<hr\/>\n<h2>VPasCode\u306b\u3088\u308bPlantUML ERD\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u306e\u6700\u9069\u5316<\/h2>\n<p>\u4fe1\u983c\u6027\u306e\u9ad8\u3044<strong>\u7121\u6599\u306ePlantUML ERD\u30a8\u30c7\u30a3\u30bf<\/strong>\u30ed\u30fc\u30ab\u30eb\u8a2d\u5b9a\u306e\u624b\u9593\u3092\u89e3\u6d88\u3059\u308b<a href=\"https:\/\/vpascode.com\" rel=\"noopener\" target=\"_blank\">Visual Paradigm VPasCode<\/a>\u5b8c\u5168\u306a\u30aa\u30f3\u30e9\u30a4\u30f3\u30d6\u30e9\u30a6\u30b6\u30d9\u30fc\u30b9\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p id=\"oICzpPg\"><img alt=\"Screenshot of Visual Paradigm VPasCode editing an PlantUML ERD in its PlantUML editor\" class=\"alignnone wp-image-1831 size-full\" decoding=\"async\" height=\"745\" sizes=\"(max-width: 1192px) 100vw, 1192px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7211284a469.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7211284a469.png 1192w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7211284a469-300x188.png 300w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7211284a469-1024x640.png 1024w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/08\/img_6a7211284a469-768x480.png 768w\" width=\"1192\"\/><\/p>\n<h3>\u5373\u6642\u30d6\u30e9\u30a6\u30b6\u30d9\u30fc\u30b9\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3068\u81ea\u52d5\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u691c\u51fa<\/h3>\n<p>VPasCode\u306f\u76f4\u611f\u7684\u3067\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u4e0d\u8981\u306a<strong>\u7121\u6599\u306ePlantUML\u30c4\u30fc\u30eb<\/strong>\u3002\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u30a8\u30c7\u30a3\u30bf\u306b\u8cbc\u308a\u4ed8\u3051\u308b\u3060\u3051\u3067\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u306f\u81ea\u52d5\u7684\u306bPlantUML\u69cb\u6587\u3092\u691c\u51fa\u3057\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067ERD\u3092\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3057\u307e\u3059\u3002<\/p>\n<h3>AI\u7ffb\u8a33\u6a5f\u80fd\u4ed8\u304d\u306e\u591a\u8a00\u8a9e\u56f3\u9762<\/h3>\n<p>\u5206\u6563\u3057\u305f\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u3068\u4f5c\u696d\u3059\u308b\u969b\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306f\u3057\u3070\u3057\u3070\u30ed\u30fc\u30ab\u30e9\u30a4\u30ba\u304c\u5fc5\u8981\u3067\u3059\u3002VPasCode\u306b\u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u306aAI\u7ffb\u8a33\u6a5f\u80fd\u304c\u642d\u8f09\u3055\u308c\u3066\u304a\u308a\u3001\u56f3\u9762\u306e\u30c6\u30ad\u30b9\u30c8\u3084\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30e9\u30d9\u30eb\u30921\u30af\u30ea\u30c3\u30af\u3067\u8907\u6570\u306e\u8a00\u8a9e\u306b\u7ffb\u8a33\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>ERD\u306e\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3068OpenDocs\u304a\u3088\u3073\u6280\u8853\u4ed5\u69d8\u3078\u306e\u57cb\u3081\u8fbc\u307f<\/h3>\n<p>ERD\u304c\u5b8c\u6210\u3057\u305f\u3089\u3001\u9ad8\u89e3\u50cf\u5ea6\u306ePNG\u307e\u305f\u306f\u30d9\u30af\u30bf\u5f62\u5f0f\u306eSVG\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u30c7\u30b6\u30a4\u30f3\u3092\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u56f3\u3092OpenDocs\u306b\u76f4\u63a5\u7d71\u5408\u3057\u305f\u308a\u3001\u30d7\u30eb\u30ea\u30af\u30a8\u30b9\u30c8\u3084\u8a2d\u8a08\u30ec\u30d3\u30e5\u30fc\u7528\u306e\u5373\u6642\u5171\u6709\u30ea\u30f3\u30af\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<hr\/>\n<h2>PlantUML vs. Mermaid vs. SQL\uff1a\u56f3\u3092\u30b3\u30fc\u30c9\u3067\u8a18\u8ff0\u3059\u308b\u9069\u5207\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u306e\u9078\u629e<\/h2>\n<p>\u9069\u5207\u306a\u56f3\u3092\u30b3\u30fc\u30c9\u3067\u8a18\u8ff0\u3059\u308b\uff08DaC\uff09\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u9078\u3076\u306b\u306f\u3001\u30c1\u30fc\u30e0\u306e\u65e2\u5b58\u306e\u30c4\u30fc\u30eb\u3084\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u5224\u65ad\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u306e\u4f5c\u6210\u306bPlantUML\u3068Mermaid\u306e\u3069\u3061\u3089\u3092\u4f7f\u3046\u3079\u304d\u304b<\/h3>\n<ul>\n<li><strong>PlantUML\u3092\u9078\u3076\u5834\u5408\uff1a<\/strong>\u9ad8\u5ea6\u306a\u30e2\u30c7\u30ea\u30f3\u30b0\u6a5f\u80fd\u3001\u30ab\u30b9\u30bf\u30e0\u30b9\u30bf\u30a4\u30eb\u30c6\u30fc\u30de\u3001Chen ERD\u306e\u30b5\u30dd\u30fc\u30c8\u3001\u307e\u305f\u306f\u8907\u96d1\u306a\u30d1\u30c3\u30b1\u30fc\u30b8\u30b0\u30eb\u30fc\u30d7\u5316\u304c\u5fc5\u8981\u306a\u5834\u5408\u3002<\/li>\n<li><strong>Mermaid\u3092\u9078\u3076\u5834\u5408\uff1a<\/strong>GitHub\u306eMarkdown\u30d5\u30a1\u30a4\u30eb\u5185\u3067\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3055\u308c\u308b\u3001\u30b7\u30f3\u30d7\u30eb\u3067\u8efd\u91cf\u306a\u69cb\u6587\u3092\u597d\u3080\u5834\u5408\u3002<\/li>\n<\/ul>\n<blockquote style=\"background: #f9f9f9; border-left: 4px solid #0073aa; padding: 10px 15px; margin: 15px 0;\">\n<p><strong>\u30d7\u30ed\u306e\u30d2\u30f3\u30c8\uff1a<\/strong>VPasCode\u306fPlantUML\u3068Mermaid\u306e\u4e21\u65b9\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u30b9\u30e0\u30fc\u30ba\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u3058\u30a8\u30c7\u30a3\u30bf\u5185\u3067DSL\u3092\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u3092\u5909\u66f4\u305b\u305a\u306b\u6e08\u307f\u307e\u3059\u3002<\/p>\n<\/blockquote>\n<h3>Raw SQL\u30b9\u30ad\u30fc\u30de\u304b\u3089ERD\u3092\u76f4\u63a5\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3059\u308b<\/h3>\n<p>\u56f3\u8868\u3068\u3057\u3066\u306e\u30b3\u30fc\u30c9DSL\u306b\u52a0\u3048\u3066\u3001VPasCode\u306f\u76f4\u63a5\u751f\u306eSQL 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