{"id":2694,"date":"2026-07-14T14:23:12","date_gmt":"2026-07-14T06:23:12","guid":{"rendered":"https:\/\/updates.visual-paradigm.com\/de\/releases\/free-sql-to-erd-tool-online-editor\/"},"modified":"2026-07-14T14:23:12","modified_gmt":"2026-07-14T06:23:12","slug":"free-sql-to-erd-tool-online-editor","status":"publish","type":"releases","link":"https:\/\/updates.visual-paradigm.com\/de\/releases\/free-sql-to-erd-tool-online-editor\/","title":{"rendered":"Wandeln Sie SQL sofort in visuelle ERDs um: VPasCode f\u00fchrt interaktive SQL-zu-Diagramm-Unterst\u00fctzung ein"},"content":{"rendered":"<p>Datenbankdesign und Dokumentation sind jetzt deutlich reibungsloser geworden. Wenn Sie jemals Stunden damit verbracht haben, per Hand K\u00e4stchen zu ziehen, abzulegen und auszurichten, um ein Entit\u00e4ts-Beziehungs-Diagramm (ERD) zu erstellen, dann hat Visual Paradigm eine fantastische Nachricht f\u00fcr Sie. Wir haben unsere einheitliche Text-zu-Diagramm-Plattform offiziell deutlich verbessert, <strong>VPasCode<\/strong>, indem wir eine robuste Unterst\u00fctzung f\u00fcr native SQL-Code eingef\u00fchrt haben.<\/p>\n<p>Mit dieser neuesten Erweiterung fungiert VPasCode nun als \u00e4u\u00dferst intuitives <strong>kostenloses SQL-zu-ERD-Werkzeug<\/strong>. Sie k\u00f6nnen Ihre rohen SQL-DDL-Skripte einfach in unsere Umgebung einf\u00fcgen und beobachten, wie Ihre vollst\u00e4ndigen Entit\u00e4ts-Beziehungs-Diagramme sofort vor Ihren Augen gerendert werden.<\/p>\n<p id=\"yjbPRfO\"><img fetchpriority=\"high\" alt=\"A screenshot of Visual Paradigm's VPasCode that shows the editing of a SQL, with the code rendered as an ERD in Mermaid format\" class=\"alignnone wp-image-2939 size-full\" decoding=\"async\" fetchpriority=\"high\" height=\"745\" sizes=\"(max-width: 1192px) 100vw, 1192px\" src=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d47b6a5f3.png\" srcset=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d47b6a5f3.png 1192w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d47b6a5f3-300x188.png 300w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d47b6a5f3-1024x640.png 1024w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d47b6a5f3-768x480.png 768w\" width=\"1192\"\/><\/p>\n<p>Unabh\u00e4ngig davon, ob Sie ein Datenarchitekt sind, der ein Unternehmens\u00f6kosystem entwirft, ein Full-Stack-Entwickler, der eine neue Funktion prototypisch erstellt, oder ein Student, der relationale Datenbankmanagementsysteme lernt, dieses leistungsstarke <strong>online SQL-ERD-Werkzeug<\/strong> ist darauf ausgelegt, Ihnen Zeit zu sparen und manuelle Diagrammierungsengp\u00e4sse zu beseitigen.<\/p>\n<hr\/>\n<h2>Was ist VPasCode? Die ultimative Diagramm-als-Code-Plattform<\/h2>\n<p>Wenn Sie neu auf der Plattform sind, hier eine kurze Auffrischung: <a href=\"https:\/\/www.vpascode.com\/overview\/\">VPasCode<\/a> ist das einheitliche Text-zu-Diagramm-Zentrum von Visual Paradigm. Anstatt traditioneller Maus-und-Zieh-Werkzeuge \u00fcbernimmt VPasCode eine \u201eDiagramm-als-Code\u201c (DaC)-Philosophie. Es erm\u00f6glicht Ihnen, komplexe Systemarchitekturen, Ablaufpl\u00e4ne und Sequenzdiagramme mithilfe einer einfachen, menschenlesbaren Textsyntax zu erstellen, zu pflegen und Versionskontrolle durchzuf\u00fchren.<\/p>\n<p>Die Plattform verf\u00fcgt \u00fcber einen blitzschnellen, kostenlosen Code-Editor auf der linken Seite und einen Echtzeit-Diagramm-Renderer auf der rechten Seite. Da es als wirklich integrierte Umgebung konzipiert ist, unterst\u00fctzt VPasCode theoretisch alle g\u00e4ngigen Text-zu-Diagramm-Standards, einschlie\u00dflich vollst\u00e4ndiger PlantUML- und Mermaid-Syntaxen. Sie erhalten das Beste aus Open-Source-Rendering-Engines kombiniert mit der anspruchsvollen Web-Ecosystem von Visual Paradigm.<\/p>\n<hr\/>\n<h2>Flexibilit\u00e4t mit zwei Rendering-Engines: Der ultimative SQL-ERD-Editor<\/h2>\n<p>W\u00e4hrend herk\u00f6mmliche Code-zu-Diagramm-Werkzeuge Sie an einen einzigen Layout-Engine binden, bietet Ihnen VPasCode vollst\u00e4ndige kreative und architektonische Kontrolle. Im Gegensatz zu anderen Sprachen, die wir unterst\u00fctzen, f\u00fchrt unser neuer <strong>SQL-ERD-Editor<\/strong> f\u00fchrt einen einzigartigen Dual-Rendering-Schalter ein.<\/p>\n<p>\u00dcber dem SQL-Code-Editor in der linken Seitenleiste finden Sie ein Dropdown-Men\u00fc, das standardm\u00e4\u00dfig auf <strong>\u201eMermaid\u201c<\/strong>. Wenn Sie Ihre Datenbankarchitektur stattdessen mit PlantUML-Syntaxregeln anzeigen oder exportieren m\u00f6chten, k\u00f6nnen Sie einfach auf das Dropdown-Men\u00fc klicken und es auf <strong>\u201ePlantUML\u201c<\/strong>. Das System verarbeitet Ihre SQL-Skripte automatisch und wandelt sie sofort mit Ihrem gew\u00e4hlten Engine um.<\/p>\n<hr\/>\n<h2>Sehen Sie es in Aktion: 4 interaktive Beispiele aus der Praxis<\/h2>\n<p>Um zu beweisen, wie vielseitig diese neue Funktion \u00fcber verschiedene Datenbank-Dialekte und Softwarearchitekturen hinweg ist, haben wir vier interaktive Beispiele vorbereitet. Sie k\u00f6nnen auf die Links unter jedem Beispiel klicken, um sie direkt in der Live-<strong>online SQL-ERD-Werkzeug<\/strong>Umgebung zu \u00f6ffnen.<\/p>\n<h3>1. E-Commerce-Schema (Standard SQL)<\/h3>\n<p>Dieses standardm\u00e4\u00dfige relationale Schema zeigt klassische E-Commerce-Beziehungen: Benutzer, Adressen, Produkte, Bestellungen, Bestellpositionen und Produktbewertungen mit standardm\u00e4\u00dfigen Prim\u00e4r- und Fremdschl\u00fcsselverweisen.<\/p>\n<p id=\"trovHxL\"><img alt=\"A Mermaid ERD rendered from a SQL, edited with Visual Paradigm's VPasCode Diagram-as-Code (DaC) platform: An Ecommerce schema example\" class=\"alignnone wp-image-2940\" decoding=\"async\" height=\"1286\" sizes=\"(max-width: 800px) 100vw, 800px\" src=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d48997de2.png\" srcset=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d48997de2.png 863w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d48997de2-187x300.png 187w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d48997de2-637x1024.png 637w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d48997de2-768x1234.png 768w\" width=\"800\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Sql<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/#sql: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\" 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>Sql in VPasCode bearbeiten<\/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\">Sql<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/#sql:eNqdlFFvgjAUhd9N+A\/3UZI9qJvLkj1VUh0Zgqt1mU+kg7o0IrhSXPz3G6AgatXslXN773dOL7UIRhQDRQMHQ5ZymULbaAGIEAb2yHYpTIg9RmQOr3h+lyt8xUQE74hYL4i0e\/2+Ca5HwZ05Dsxc+22Gi7JFFkV+zFa8Ku32OmYhBZIzxUOfKaD2GE8pGk+qHkbLfDZaRss6BGNhKHma8qtwuQO\/liswgoeYYNfC09JkW4QlSyRi3j3vpmQValvJT3sDSRYruYXyjHmZfS2TMAvUVfR0mVWDHh\/Oh9rIs9fpHMGupQi4H\/D4b9qh\/UJkgRIbDgPPczByLzMnMrxhEzRhl9PKG6vl0qNiKksrB\/e9IwMqUSzSGVhHLNBtTVEw9Ai2R27OB+0dnKm\/+kZ5zds4US1efkoflS8UX13Na1d6PrDdmujk74zFKt\/FEyWLhdJFZnnulBKUf18s\/UT4BULT+Z6q4btcgCqqkz472man2kKj1\/4H0EYo+Ubwn6vx6RPSTfvfkyCZEvEXTMfIcU4S\/UzCLVD8QW97yX4Bs6l7UQ==\" \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 Sql in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"language-sql\"><code class=\"language-sql\" data-language=\"sql\" class=\"language-sql\">\r\nCREATE TABLE users (\r\n  id BIGINT PRIMARY KEY,\r\n  email VARCHAR(255) NOT NULL UNIQUE,\r\n  full_name VARCHAR(120),\r\n  created_at TIMESTAMP NOT NULL\r\n);\r\n\r\nCREATE TABLE addresses (\r\n  id BIGINT PRIMARY KEY,\r\n  user_id BIGINT NOT NULL REFERENCES users(id),\r\n  line1 VARCHAR(255) NOT NULL,\r\n  city VARCHAR(80),\r\n  country CHAR(2) NOT NULL\r\n);\r\n\r\nCREATE TABLE products (\r\n  id BIGINT PRIMARY KEY,\r\n  sku VARCHAR(64) NOT NULL UNIQUE,\r\n  name VARCHAR(200) NOT NULL,\r\n  price_cents INT NOT NULL,\r\n  active BOOLEAN NOT NULL\r\n);\r\n\r\nCREATE TABLE orders (\r\n  id BIGINT PRIMARY KEY,\r\n  user_id BIGINT NOT NULL,\r\n  address_id BIGINT,\r\n  status VARCHAR(32) NOT NULL,\r\n  total_cents INT NOT NULL,\r\n  placed_at TIMESTAMP NOT NULL,\r\n  FOREIGN KEY (user_id) REFERENCES users(id),\r\n  FOREIGN KEY (address_id) REFERENCES addresses(id)\r\n);\r\n\r\nCREATE TABLE order_items (\r\n  id BIGINT PRIMARY KEY,\r\n  order_id BIGINT NOT NULL,\r\n  product_id BIGINT NOT NULL,\r\n  quantity INT NOT NULL,\r\n  unit_cents INT NOT NULL,\r\n  CONSTRAINT fk_oi_order FOREIGN KEY (order_id) REFERENCES orders(id),\r\n  CONSTRAINT fk_oi_product FOREIGN KEY (product_id) REFERENCES products(id)\r\n);\r\n\r\nCREATE TABLE reviews (\r\n  id BIGINT PRIMARY KEY,\r\n  product_id BIGINT NOT NULL REFERENCES products(id),\r\n  user_id BIGINT NOT NULL REFERENCES users(id),\r\n  rating SMALLINT NOT NULL,\r\n  body TEXT,\r\n  created_at TIMESTAMP NOT NULL\r\n);\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/#sql: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\" \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 Sql 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\/#sql: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\" 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>Sql in VPasCode bearbeiten<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h3>2. Inhaltsverwaltungs-Blog-Schema (PostgreSQL-Dialekt)<\/h3>\n<p>Moderne Anwendungen erfordern erweiterte Datenstrukturen. Das auf PostgreSQL ausgerichtete Schema verf\u00fcgt \u00fcber erweiterte Konfigurationen, einschlie\u00dflich komplexer Arrays (<code>TEXT[]<\/code>), moderne JSON-Objekte (<code>JSONB<\/code>), und UUID-Datentypen f\u00fcr Prim\u00e4rschl\u00fcssel.<\/p>\n<p id=\"QlOGmuK\"><img alt=\"A Mermaid ERD rendered from a SQL, edited with Visual Paradigm's VPasCode Diagram-as-Code (DaC) platform: A blog example\" class=\"alignnone wp-image-2942\" decoding=\"async\" height=\"1290\" sizes=\"(max-width: 800px) 100vw, 800px\" src=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4a58ed60.png\" srcset=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4a58ed60.png 930w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4a58ed60-186x300.png 186w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4a58ed60-635x1024.png 635w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4a58ed60-768x1239.png 768w\" width=\"800\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Sql<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/#sql: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\" 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>Sql in VPasCode bearbeiten<\/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\">Sql<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/#sql: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\" \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 Sql in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"language-sql\"><code class=\"language-sql\" data-language=\"sql\" class=\"language-sql\">\r\nCREATE TABLE authors (\r\n  id UUID PRIMARY KEY,\r\n  name VARCHAR(200) NOT NULL,\r\n  email VARCHAR(255) NOT NULL UNIQUE,\r\n  bio TEXT,\r\n  avatar_url VARCHAR(500),\r\n  meta JSONB DEFAULT '{}',\r\n  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()\r\n);\r\n\r\nCREATE TABLE categories (\r\n  id UUID PRIMARY KEY,\r\n  name VARCHAR(100) NOT NULL UNIQUE,\r\n  slug VARCHAR(120) NOT NULL UNIQUE,\r\n  description TEXT,\r\n  parent_id UUID REFERENCES categories(id),\r\n  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()\r\n);\r\n\r\nCREATE TABLE posts (\r\n  id UUID PRIMARY KEY,\r\n  author_id UUID NOT NULL REFERENCES authors(id),\r\n  category_id UUID REFERENCES categories(id),\r\n  title VARCHAR(300) NOT NULL,\r\n  slug VARCHAR(350) NOT NULL UNIQUE,\r\n  body TEXT NOT NULL,\r\n  excerpt TEXT,\r\n  tags TEXT[],\r\n  published BOOLEAN NOT NULL DEFAULT FALSE,\r\n  views INTEGER NOT NULL DEFAULT 0,\r\n  published_at TIMESTAMPTZ,\r\n  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),\r\n  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()\r\n);\r\n\r\nCREATE TABLE comments (\r\n  id UUID PRIMARY KEY,\r\n  post_id UUID NOT NULL REFERENCES posts(id),\r\n  author_name VARCHAR(120) NOT NULL,\r\n  author_email VARCHAR(255) NOT NULL,\r\n  body TEXT NOT NULL,\r\n  approved BOOLEAN NOT NULL DEFAULT FALSE,\r\n  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()\r\n);\r\n\r\nCREATE TABLE post_tags (\r\n  post_id UUID NOT NULL REFERENCES posts(id),\r\n  tag VARCHAR(60) NOT NULL,\r\n  PRIMARY KEY (post_id, tag),\r\n  CONSTRAINT fk_tags_post FOREIGN KEY (post_id) REFERENCES posts(id)\r\n);\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/#sql: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\" \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 Sql 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\/#sql: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\" 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>Sql in VPasCode bearbeiten<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h3>3. Multi-Tenant-SaaS-Engine (MySQL-Dialekt)<\/h3>\n<p>Dieses MySQL-DDL-Beispiel beschreibt ein mehrinstanzenf\u00e4higes Gesch\u00e4fts-System, das Organisationen, Team-Hierarchien, Benutzerberechtigungen, Projektzuweisungen und Rechnungen verfolgt, wobei native <code>AUTO_INCREMENT<\/code>, <code>ENUM<\/code>Felder und explizite Dezimalzahlen verwendet werden.<\/p>\n<p id=\"yscEibK\"><img loading=\"lazy\" alt=\"A Mermaid ERD rendered from a SQL, edited with Visual Paradigm's VPasCode Diagram-as-Code (DaC) platform: A Multi-Tenant SaaS Engine example\" class=\"alignnone wp-image-2941\" decoding=\"async\" height=\"1290\" loading=\"lazy\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" src=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d493dfc5f.png\" srcset=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d493dfc5f.png 930w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d493dfc5f-186x300.png 186w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d493dfc5f-635x1024.png 635w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d493dfc5f-768x1239.png 768w\" width=\"800\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Sql<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/#sql: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\" 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>Sql in VPasCode bearbeiten<\/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\">Sql<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/#sql: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\" \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 Sql in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"language-sql\"><code class=\"language-sql\" data-language=\"sql\" class=\"language-sql\">\r\nCREATE TABLE organizations (\r\n  id INT AUTO_INCREMENT PRIMARY KEY,\r\n  name VARCHAR(200) NOT NULL,\r\n  slug VARCHAR(120) NOT NULL UNIQUE,\r\n  plan TINYINT NOT NULL DEFAULT 0,\r\n  active BOOLEAN NOT NULL DEFAULT TRUE,\r\n  max_users INT NOT NULL DEFAULT 10,\r\n  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,\r\n  updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP\r\n);\r\n\r\nCREATE TABLE teams (\r\n  id INT AUTO_INCREMENT PRIMARY KEY,\r\n  org_id INT NOT NULL,\r\n  name VARCHAR(120) NOT NULL,\r\n  description TEXT,\r\n  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,\r\n  FOREIGN KEY (org_id) REFERENCES organizations(id)\r\n);\r\n\r\nCREATE TABLE users (\r\n  id INT AUTO_INCREMENT PRIMARY KEY,\r\n  org_id INT NOT NULL,\r\n  email VARCHAR(255) NOT NULL UNIQUE,\r\n  password_hash VARCHAR(255) NOT NULL,\r\n  display_name VARCHAR(120) NOT NULL,\r\n  role ENUM('admin', 'member', 'viewer') NOT NULL DEFAULT 'member',\r\n  active BOOLEAN NOT NULL DEFAULT TRUE,\r\n  last_login DATETIME,\r\n  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,\r\n  FOREIGN KEY (org_id) REFERENCES organizations(id)\r\n);\r\n\r\nCREATE TABLE projects (\r\n  id INT AUTO_INCREMENT PRIMARY KEY,\r\n  org_id INT NOT NULL,\r\n  name VARCHAR(200) NOT NULL,\r\n  description TEXT,\r\n  budget DECIMAL(12, 2) NOT NULL DEFAULT 0.00,\r\n  status ENUM('planning', 'active', 'completed', 'archived') NOT NULL DEFAULT 'planning',\r\n  start_date DATE,\r\n  end_date DATE,\r\n  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,\r\n  FOREIGN KEY (org_id) REFERENCES organizations(id)\r\n);\r\n\r\nCREATE TABLE invoices (\r\n  id INT AUTO_INCREMENT PRIMARY KEY,\r\n  org_id INT NOT NULL,\r\n  user_id INT NOT NULL,\r\n  project_id INT,\r\n  invoice_no VARCHAR(32) NOT NULL UNIQUE,\r\n  amount DECIMAL(12, 2) NOT NULL,\r\n  tax DECIMAL(12, 2) NOT NULL DEFAULT 0.00,\r\n  total DECIMAL(12, 2) NOT NULL,\r\n  currency CHAR(3) NOT NULL DEFAULT 'USD',\r\n  status ENUM('draft', 'sent', 'paid', 'cancelled') NOT NULL DEFAULT 'draft',\r\n  due_date DATE NOT NULL,\r\n  paid_at DATETIME,\r\n  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,\r\n  FOREIGN KEY (org_id) REFERENCES organizations(id),\r\n  FOREIGN KEY (user_id) REFERENCES users(id),\r\n  FOREIGN KEY (project_id) REFERENCES projects(id)\r\n);\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/#sql: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\" \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 Sql 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\/#sql: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\" 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>Sql in VPasCode bearbeiten<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<h3>4. Bibliotheksverwaltungs-Katalog (SQLite-Dialekt)<\/h3>\n<p>Ideal f\u00fcr lokalisierte Anwendungsstrukturen, enth\u00e4lt dieses SQLite-Dataset umfassende Konfigurationen f\u00fcr Verlegerverzeichnisse, Katalogbest\u00e4nde mit strukturellen Kreuzreferenzbeschr\u00e4nkungen, Mitgliederdatenbanken, physische Ausleihen und Wartelistenreservierungen.<\/p>\n<p id=\"GmPPcWS\"><img loading=\"lazy\" alt=\"A Mermaid ERD rendered from a SQL, edited with Visual Paradigm's VPasCode Diagram-as-Code (DaC) platform: A Library Management System example\" class=\"alignnone wp-image-2943\" decoding=\"async\" height=\"1028\" loading=\"lazy\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" src=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4b4f3892.png\" srcset=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4b4f3892.png 1234w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4b4f3892-233x300.png 233w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4b4f3892-797x1024.png 797w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4b4f3892-768x987.png 768w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d4b4f3892-1195x1536.png 1195w\" width=\"800\"\/><\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Sql<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/#sql: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\" 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>Sql in VPasCode bearbeiten<\/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\">Sql<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/#sql: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\" \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 Sql in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"language-sql\"><code class=\"language-sql\" data-language=\"sql\" class=\"language-sql\">\r\nCREATE TABLE publishers (\r\n  id INTEGER PRIMARY KEY,\r\n  name VARCHAR(200) NOT NULL,\r\n  address TEXT,\r\n  website VARCHAR(300),\r\n  established_year INT\r\n);\r\n\r\nCREATE TABLE books (\r\n  id INTEGER PRIMARY KEY,\r\n  publisher_id INT,\r\n  isbn VARCHAR(20) NOT NULL UNIQUE,\r\n  title VARCHAR(300) NOT NULL,\r\n  subtitle VARCHAR(300),\r\n  language VARCHAR(30) NOT NULL DEFAULT 'English',\r\n  page_count INT,\r\n  publication_year INT,\r\n  edition INT DEFAULT 1,\r\n  cover_image BLOB,\r\n  description TEXT,\r\n  rating REAL DEFAULT 0.0,\r\n  price DECIMAL(8, 2),\r\n  in_stock BOOLEAN NOT NULL DEFAULT TRUE,\r\n  acquired_at DATE,\r\n  created_at TIMESTAMP NOT NULL,\r\n  FOREIGN KEY (publisher_id) REFERENCES publishers(id)\r\n);\r\n\r\nCREATE TABLE authors (\r\n  id INTEGER PRIMARY KEY,\r\n  first_name VARCHAR(80) NOT NULL,\r\n  last_name VARCHAR(80) NOT NULL,\r\n  birth_date DATE,\r\n  nationality VARCHAR(60),\r\n  biography TEXT,\r\n  website VARCHAR(300)\r\n);\r\n\r\nCREATE TABLE book_authors (\r\n  book_id INT NOT NULL,\r\n  author_id INT NOT NULL,\r\n  role VARCHAR(60) DEFAULT 'Author',\r\n  sort_order INT NOT NULL DEFAULT 0,\r\n  PRIMARY KEY (book_id, author_id),\r\n  CONSTRAINT fk_ba_book FOREIGN KEY (book_id) REFERENCES books(id),\r\n  CONSTRAINT fk_ba_author FOREIGN KEY (author_id) REFERENCES authors(id)\r\n);\r\n\r\nCREATE TABLE members (\r\n  id INTEGER PRIMARY KEY,\r\n  card_no VARCHAR(20) NOT NULL UNIQUE,\r\n  first_name VARCHAR(80) NOT NULL,\r\n  last_name VARCHAR(80) NOT NULL,\r\n  email VARCHAR(255) NOT NULL UNIQUE,\r\n  phone VARCHAR(30),\r\n  address TEXT,\r\n  membership_type VARCHAR(30) NOT NULL DEFAULT 'Standard',\r\n  joined_at DATE NOT NULL,\r\n  expires_at DATE NOT NULL,\r\n  active BOOLEAN NOT NULL DEFAULT TRUE\r\n);\r\n\r\nCREATE TABLE loans (\r\n  id INTEGER PRIMARY KEY,\r\n  book_id INT NOT NULL,\r\n  member_id INT NOT NULL,\r\n  borrowed_at TIMESTAMP NOT NULL,\r\n  due_at DATE NOT NULL,\r\n  returned_at TIMESTAMP,\r\n  renewal_count INT NOT NULL DEFAULT 0,\r\n  notes TEXT,\r\n  FOREIGN KEY (book_id) REFERENCES books(id),\r\n  FOREIGN KEY (member_id) REFERENCES members(id)\r\n);\r\n\r\nCREATE TABLE holds (\r\n  id INTEGER PRIMARY KEY,\r\n  book_id INT NOT NULL,\r\n  member_id INT NOT NULL,\r\n  placed_at TIMESTAMP NOT NULL,\r\n  expires_at DATE,\r\n  fulfilled_at TIMESTAMP,\r\n  cancelled BOOLEAN NOT NULL DEFAULT FALSE,\r\n  FOREIGN KEY (book_id) REFERENCES books(id),\r\n  FOREIGN KEY (member_id) REFERENCES members(id)\r\n);\r\n<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/#sql: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\" \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 Sql 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\/#sql: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\" 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>Sql in VPasCode bearbeiten<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<hr\/>\n<h2>Warum eine Online-SQL-ERD-Tool verwenden?<\/h2>\n<p>Die Pflege genauer Dokumentation kann eine l\u00e4stige Aufgabe sein, wenn sich Schemata \u00fcber Code-Reviews und Sprints hinweg ver\u00e4ndern. VPasCode verlagert die Datenmodellierung in eine Code-erst-Paradigma:<\/p>\n<ul>\n<li><strong>Keine Installation erforderlich:<\/strong> Es l\u00e4uft native in Ihrem Browser, ohne Konfigurationsh\u00fcrden beim Einrichten.<\/li>\n<li><strong>Sofortige Visualisierung:<\/strong> Ziehen Sie Ihr Text-Schema direkt in die Oberfl\u00e4che und sehen Sie sofort strukturierte relationale Visualisierungspfade.<\/li>\n<li><strong>Flexible Ausgabeformate:<\/strong> Arbeiten Sie m\u00fchelos mit beiden Standards PlantUML und Mermaid dynamisch auf einer einzigen, reaktionsf\u00e4higen Dashboard-Oberfl\u00e4che.\n<p id=\"pZuvcDI\"><img loading=\"lazy\" alt=\"\" class=\"alignnone size-full wp-image-2944\" decoding=\"async\" height=\"745\" loading=\"lazy\" sizes=\"auto, (max-width: 1192px) 100vw, 1192px\" src=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d522312fb.png\" srcset=\"https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d522312fb.png 1192w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d522312fb-300x188.png 300w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d522312fb-1024x640.png 1024w, https:\/\/updates.visual-paradigm.com\/wp-content\/uploads\/2026\/07\/img_6a55d522312fb-768x480.png 768w\" width=\"1192\"\/><\/p>\n<\/li>\n<\/ul>\n<h3>Bereit, Ihren Arbeitsablauf zu ver\u00e4ndern?<\/h3>\n<p>H\u00f6ren Sie auf, Linien manuell zu zeichnen. Erleben Sie heute die Kraft unserer reibungslosen Text-zu-Diagramm-Arbeitsumgebung!<\/p>\n<p>\ud83d\udc49 <a href=\"https:\/\/www.vpascode.com\/\" style=\"font-size: 1.2em; font-weight: bold; text-decoration: underline;\">Starten Sie jetzt den kostenlosen VPasCode-Editor<\/a><\/p>\n","protected":false},"featured_media":2695,"template":"","meta":{"_acf_changed":false,"_yoast_wpseo_title":"Kostenloses SQL-zu-ERD-Tool: Generieren Sie Datenbankdiagramme aus DDL - VPasCode","_yoast_wpseo_metadesc":"Konvertieren Sie SQL-DDL-Skripte einfach in visuelle Entity-Relationship-Diagramme mit VPasCode, unserem kostenlosen SQL-zu-ERD-Tool. 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