{"id":2109,"date":"2026-05-26T08:05:43","date_gmt":"2026-05-26T08:05:43","guid":{"rendered":"https:\/\/www.vpascode.com\/ru\/docs\/uncategorized\/mermaid-js-erd-syntax-guide\/"},"modified":"2026-05-26T08:05:43","modified_gmt":"2026-05-26T08:05:43","slug":"mermaid-js-erd-syntax-guide","status":"publish","type":"ld_docs","link":"https:\/\/www.vpascode.com\/ru\/docs\/vpascode-docs\/mermaid-js-erd-syntax-guide\/","title":{"rendered":"\u0420\u0443\u043a\u043e\u0432\u043e\u0434\u0441\u0442\u0432\u043e \u043f\u043e \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u0443 ERD Mermaid.js"},"content":{"rendered":"<h2>\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c\u0430 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u044c-\u0441\u0432\u044f\u0437\u044c (ERD)?<\/h2>\n<p>\u042d\u0442\u043e<strong>\u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c\u0430 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u044c-\u0441\u0432\u044f\u0437\u044c (ERD)<\/strong> \u2014 \u044d\u0442\u043e \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u043d\u044b\u0439 \u0447\u0435\u0440\u0442\u0435\u0436, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0439 \u0434\u043b\u044f \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438 \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u0441\u0445\u0435\u043c \u0440\u0435\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0431\u0430\u0437 \u0434\u0430\u043d\u043d\u044b\u0445. \u041e\u043d \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u0442 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0435 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0434\u0430\u043d\u043d\u044b\u0445 (\u0441\u0443\u0449\u043d\u043e\u0441\u0442\u0438) \u0432 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0438, \u0441\u0442\u043e\u043b\u0431\u0446\u044b (\u0430\u0442\u0440\u0438\u0431\u0443\u0442\u044b), \u0432\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0435 \u0432 \u044d\u0442\u0438 \u0442\u0430\u0431\u043b\u0438\u0446\u044b, \u0438 \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u0438 \u0441\u0441\u044b\u043b\u043e\u043a, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0438\u0445 \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u044f\u044e\u0442. \u041d\u0430\u043f\u0438\u0441\u0430\u043d\u043e \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u043e\u0439<strong>\u043d\u043e\u0442\u0430\u0446\u0438\u0438 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u0438\u0438 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 (IE)<\/strong>, \u043e\u043d\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0447\u0435\u0442\u043a\u0438\u0435<strong>\u043d\u043e\u0442\u0430\u0446\u0438\u0438 \u043a\u043b\u044e\u0432\u043e\u0432 \u043f\u0442\u0438\u0446<\/strong>\u0433\u043e\u043b\u043e\u0432\u043a\u0438 \u0434\u043b\u044f \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u043c\u0435\u0436\u0434\u0443 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u043c\u0438 \u0442\u0430\u0431\u043b\u0438\u0446\u0430\u043c\u0438.<\/p>\n<p>\u0421 \u043f\u043e\u043c\u043e\u0449\u044c\u044e<strong>Mermaid.js<\/strong>, \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c \u0438\u043d\u0434\u0435\u043a\u0441\u044b \u0442\u0430\u0431\u043b\u0438\u0446, \u0442\u0438\u043f\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u0438 \u0441\u0432\u044f\u0437\u0438 \u0432\u043d\u0435\u0448\u043d\u0438\u0445 \u043a\u043b\u044e\u0447\u0435\u0439 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0447\u0438\u0441\u0442\u043e\u0433\u043e, \u043e\u043f\u0438\u0441\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0442\u0435\u043a\u0441\u0442\u043e\u0432\u043e\u0433\u043e \u0431\u043b\u043e\u043a\u0430. \u0414\u0432\u0438\u0433\u0430\u0442\u0435\u043b\u044c \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u0435\u0442 \u0440\u0430\u0437\u043c\u0435\u0440\u0430\u043c\u0438 \u0434\u043b\u044f \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 \u043c\u0443\u043b\u044c\u0442\u0438\u043a\u043e\u043b\u043e\u043d\u043e\u0447\u043d\u044b\u0445 \u043c\u0430\u043a\u0435\u0442\u043e\u0432 \u0438 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0438\u0440\u0443\u0435\u0442 \u043b\u0438\u043d\u0438\u0438 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439, \u043d\u0435 \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044f \u043f\u0435\u0440\u0435\u043a\u0440\u044b\u0442\u0438\u044f \u0442\u0435\u043a\u0441\u0442\u043e\u0432\u044b\u0445 \u043c\u0435\u0442\u043e\u043a.<\/p>\n<h2>\u0420\u0443\u043a\u043e\u0432\u043e\u0434\u0441\u0442\u0432\u043e \u043f\u043e \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u043c\u0443 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u0443: \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u0438 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0438<\/h2>\n<p>\u0421\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439, \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0440\u0430\u0431\u043e\u0447\u0435\u0439 \u0441\u0445\u0435\u043c\u044b \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 Mermaid \u0437\u0430\u0432\u0438\u0441\u0438\u0442 \u043e\u0442 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u043d\u044b\u0445 \u0431\u043b\u043e\u043a\u043e\u0432 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u0435\u0439, \u0441\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0439 \u0442\u0438\u043f\u043e\u0432 \u0434\u0430\u043d\u043d\u044b\u0445, \u0442\u0435\u0433\u043e\u0432 \u0438\u043d\u0434\u0435\u043a\u0441\u043e\u0432 \u0438 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u043e\u0432 \u043a\u0430\u0440\u0434\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438.<\/p>\n<h3>1. \u041e\u0431\u044a\u044f\u0432\u043b\u0435\u043d\u0438\u0435 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u0435\u0439 \u0438 \u0441\u0442\u043e\u043b\u0431\u0446\u043e\u0432 \u0442\u0430\u0431\u043b\u0438\u0446\u044b<\/h3>\n<p>\u0412\u044b \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u0443\u0435\u0442\u0435 \u0445\u043e\u043b\u0441\u0442 ERD \u0432 \u043f\u0435\u0440\u0432\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u0435, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u043a\u043b\u044e\u0447\u0435\u0432\u043e\u0435 \u0441\u043b\u043e\u0432\u043e<code>erDiagram<\/code>\u043a\u043b\u044e\u0447\u0435\u0432\u043e\u0435 \u0441\u043b\u043e\u0432\u043e. \u0427\u0442\u043e\u0431\u044b \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0438\u0442\u044c \u0442\u0430\u0431\u043b\u0438\u0446\u0443, \u043d\u0430\u043f\u0438\u0448\u0438\u0442\u0435 \u0438\u043c\u044f \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u0438, \u0437\u0430 \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u0441\u043b\u0435\u0434\u0443\u0435\u0442 \u043e\u0442\u043a\u0440\u044b\u0432\u0430\u044e\u0449\u0430\u044f \u0444\u0438\u0433\u0443\u0440\u043d\u0430\u044f \u0441\u043a\u043e\u0431\u043a\u0430, \u043f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u0438\u0432 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u0432\u0430\u0448\u0438\u0445 \u0441\u0442\u043e\u043b\u0431\u0446\u043e\u0432 \u043f\u043e\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u043d\u043e \u0432 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u044b\u0445 \u0441\u0442\u0440\u043e\u043a\u0430\u0445:<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAgtBg16BghWoIBwQy80oUMlMQ\/OKSosy8dIXU3MTMHIRoSWZuanFJYm6BQnJRamJJakp8YglEthYAu7UZoQ==\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/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\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAgtBg16BghWoIBwQy80oUMlMQ\/OKSosy8dIXU3MTMHIRoSWZuanFJYm6BQnJRamJJakp8YglEthYAu7UZoQ==\" \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 Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">erDiagram\r\n    USERS {\r\n        int id\r\n        string email\r\n        timestamp created_at\r\n    }<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAgtBg16BghWoIBwQy80oUMlMQ\/OKSosy8dIXU3MTMHIRoSWZuanFJYm6BQnJRamJJakp8YglEthYAu7UZoQ==\" \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 Mermaid 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\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAgtBg16BghWoIBwQy80oUMlMQ\/OKSosy8dIXU3MTMHIRoSWZuanFJYm6BQnJRamJJakp8YglEthYAu7UZoQ==\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p id=\"VkXootV\"><img alt=\"\" class=\"alignnone size-full wp-image-629\" decoding=\"async\" height=\"187\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903a383fb3.png\" width=\"221\"\/><\/p>\n<h3>2. \u041e\u0442\u043c\u0435\u0442\u043a\u0430 \u043f\u0435\u0440\u0432\u0438\u0447\u043d\u044b\u0445 \u043a\u043b\u044e\u0447\u0435\u0439, \u0432\u043d\u0435\u0448\u043d\u0438\u0445 \u043a\u043b\u044e\u0447\u0435\u0439 \u0438 \u043a\u043e\u043c\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0435\u0432<\/h3>\n<p>\u0414\u0432\u0438\u0433\u0430\u0442\u0435\u043b\u044c ERD Mermaid \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043d\u0430\u0437\u043d\u0430\u0447\u0430\u0442\u044c \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u043d\u044b\u0435 \u0442\u0435\u0433\u0438 \u0438\u043d\u0434\u0435\u043a\u0441\u0430\u0446\u0438\u0438 \u043d\u0435\u043f\u043e\u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u043f\u043e\u0441\u043b\u0435 \u0438\u043c\u0435\u043d\u0438 \u0441\u0442\u043e\u043b\u0431\u0446\u0430 \u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u0442\u0438\u043f\u0430 \u0434\u0430\u043d\u043d\u044b\u0445. \u0412\u044b \u0442\u0430\u043a\u0436\u0435 \u043c\u043e\u0436\u0435\u0442\u0435 \u0434\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u043d\u0435\u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u044b\u0439 \u0442\u0435\u043a\u0441\u0442\u043e\u0432\u044b\u0439 \u043a\u043e\u043c\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 \u043a \u0441\u0442\u043e\u043b\u0431\u0446\u0443, \u043e\u0431\u0435\u0440\u043d\u0443\u0432 \u0435\u0433\u043e \u0434\u0432\u043e\u0439\u043d\u044b\u043c\u0438 \u043a\u0430\u0432\u044b\u0447\u043a\u0430\u043c\u0438:<\/p>\n<ul>\n<li><code>PK<\/code> \u2014 \u044f\u0432\u043d\u043e \u043f\u043e\u043c\u0435\u0447\u0430\u0435\u0442 \u0441\u0442\u043e\u043b\u0431\u0435\u0446 \u043a\u0430\u043a \u043f\u0435\u0440\u0432\u0438\u0447\u043d\u044b\u0439 \u043a\u043b\u044e\u0447 \u0442\u0430\u0431\u043b\u0438\u0446\u044b.<\/li>\n<li><code>FK<\/code> \u2014 \u043f\u043e\u043c\u0435\u0447\u0430\u0435\u0442 \u0441\u0442\u043e\u043b\u0431\u0435\u0446 \u043a\u0430\u043a \u0432\u043d\u0435\u0448\u043d\u0438\u0439 \u043a\u043b\u044e\u0447, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0439 \u0441 \u0440\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u0441\u043a\u043e\u0439 \u0442\u0430\u0431\u043b\u0438\u0446\u0435\u0439.<\/li>\n<\/ul>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAAv8gF9egYIVqCA8EMvNKFDJTFAK8UYVKi1OL4oHibt4KSj6ZednFCiX5CqHBQM16mSlKCLXFJUWZeekKyfmlBfl58cn5KakQuVoAct0gOw==\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/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\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAAv8gF9egYIVqCA8EMvNKFDJTFAK8UYVKi1OL4oHibt4KShcWXmy82H1h94UNF7ZebAKy+xUu7L2wQSE0GGiWXmaKEkJrcUlRZl66QnJ+aUF+XnxyfkoqRK4WAGlZLRg=\" \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 Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">erDiagram\r\n    ORDERS {\r\n        int id PK\r\n        int user_id FK \"\u0421\u0441\u044b\u043b\u0430\u0435\u0442\u0441\u044f \u043d\u0430 USERS.id\"\r\n        string coupon_code\r\n    }<\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAAv8gF9egYIVqCA8EMvNKFDJTFAK8UYVKi1OL4oHibt4KShcWXmy82H1h94UNF7ZebAKy+xUu7L2wQSE0GGiWXmaKEkJrcUlRZl66QnJ+aUF+XnxyfkoqRK4WAGlZLRg=\" \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 Mermaid 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\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAAv8gF9egYIVqCA8EMvNKFDJTFAK8UYVKi1OL4oHibt4KSj6ZednFCiX5CqHBQM16mSlKCLXFJUWZeekKyfmlBfl58cn5KakQuVoAct0gOw==\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p id=\"aCCwRBw\"><img fetchpriority=\"high\" alt=\"\" class=\"alignnone size-full wp-image-632\" decoding=\"async\" fetchpriority=\"high\" height=\"817\" sizes=\"(max-width: 268px) 100vw, 268px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903b8be451.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903b8be451.png 268w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903b8be451-98x300.png 98w\" width=\"268\"\/><\/p>\n<h3>3. \u041e\u0441\u0432\u043e\u0435\u043d\u0438\u0435 \u043c\u043e\u0434\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u043e\u0432 \u043a\u0430\u0440\u0434\u0438\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u043a\u043b\u044e\u0432\u043e\u0432\u0438\u0434\u043d\u043e\u0439 \u0444\u043e\u0440\u043c\u044b<\/h3>\n<p>\u0427\u0442\u043e\u0431\u044b \u0441\u043e\u0435\u0434\u0438\u043d\u0438\u0442\u044c \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0438 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0442\u044c \u043f\u0440\u0430\u0432\u0438\u043b\u0430 \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u0438 \u0441\u0441\u044b\u043b\u043e\u043a, \u043e\u0442\u043e\u0431\u0440\u0430\u0437\u0438\u0442\u0435 \u0438\u0445 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043e\u043f\u0435\u0440\u0430\u0442\u043e\u0440\u043e\u0432 \u043b\u0438\u043d\u0438\u0439. \u0413\u043e\u043b\u043e\u0432\u043a\u0438 \u0441\u0438\u043c\u0432\u043e\u043b\u043e\u0432 \u043e\u0431\u0440\u0430\u0437\u0443\u044e\u0442 \u0432\u0438\u0437\u0443\u0430\u043b\u044c\u043d\u044b\u0435 \u0444\u043e\u0440\u043c\u044b \u043a\u043b\u044e\u0432\u043e\u0432\u0438\u0434\u043d\u043e\u0439 \u0444\u043e\u0440\u043c\u044b, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u044e\u0442 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u043c\u043d\u043e\u0433\u043e\u0437\u043d\u0430\u0447\u043d\u043e\u0441\u0442\u0438 \u0434\u0430\u043d\u043d\u044b\u0445:<\/p>\n<ul>\n<li><code>||--||<\/code> **\u0422\u043e\u0447\u043d\u043e \u043e\u0434\u0438\u043d \u043a \u0442\u043e\u0447\u043d\u043e \u043e\u0434\u043d\u043e\u043c\u0443:** \u0441\u0442\u0440\u043e\u0433\u043e\u0435, \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435 1:1.<\/li>\n<li><code>||--o|<\/code> **\u0422\u043e\u0447\u043d\u043e \u043e\u0434\u0438\u043d \u043a \u043d\u0443\u043b\u044e \u0438\u043b\u0438 \u043e\u0434\u043d\u043e\u043c\u0443:** \u043d\u0435\u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u044c 1:1.<\/li>\n<li><code>||--|{<\/code> **\u0422\u043e\u0447\u043d\u043e \u043e\u0434\u0438\u043d \u043a \u043e\u0434\u043d\u043e\u043c\u0443 \u0438\u043b\u0438 \u043c\u043d\u043e\u0433\u0438\u043c:** \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0440\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u0441\u043a\u0430\u044f \u0441\u0432\u044f\u0437\u044c 1:N.<\/li>\n<li><code>||--o{<\/code> **\u0422\u043e\u0447\u043d\u043e \u043e\u0434\u0438\u043d \u043a \u043d\u0443\u043b\u044e, \u043e\u0434\u043d\u043e\u043c\u0443 \u0438\u043b\u0438 \u043c\u043d\u043e\u0433\u0438\u043c:** \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u0430\u044f \u043d\u0435\u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u0430\u044f \u0441\u0432\u044f\u0437\u044c 1:N.<\/li>\n<\/ul>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAgtBg16BghZoaXd38agX\/IBcQz0pBqSAnMTm1WAkAMZMNNw==\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/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\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAgtBg16BghZoaXd38agX\/IBcQz0pB6WLDhQ0Xtl\/Yc2HrxU4ga+vFJiUAMJMX2g==\" \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 Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">erDiagram\r\n    USERS ||--o{ ORDERS : \"\u0440\u0430\u0437\u043c\u0435\u0449\u0430\u0435\u0442\" <\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAgtBg16BghZoaXd38agX\/IBcQz0pB6WLDhQ0Xtl\/Yc2HrxU4ga+vFJiUAMJMX2g==\" \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 Mermaid 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\/editor\/#mermaid:eNpLLXLJTEwvSszl5VIAgtBg16BghZoaXd38agX\/IBcQz0pBqSAnMTm1WAkAMZMNNw==\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p><img alt=\"\" class=\"alignnone size-full wp-image-631\" decoding=\"async\" height=\"285\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903aca991c.png\" width=\"116\"\/><\/p>\n<h2>\u041b\u0443\u0447\u0448\u0438\u0435 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0438 \u0434\u043b\u044f \u0441\u0445\u0435\u043c \u0440\u0435\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445<\/h2>\n<ul>\n<li><strong>\u0421\u043e\u0431\u043b\u044e\u0434\u0430\u0439\u0442\u0435 \u0435\u0434\u0438\u043d\u043e\u043e\u0431\u0440\u0430\u0437\u043d\u044b\u0439 \u0440\u0435\u0433\u0438\u0441\u0442\u0440 \u0438\u043c\u0451\u043d \u0442\u0430\u0431\u043b\u0438\u0446:<\/strong> \u0414\u0435\u0440\u0436\u0438\u0442\u0435 \u0438\u043c\u0435\u043d\u0430 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u0435\u0439 \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u0443\u0435\u043c\u044b\u043c\u0438. \u0418\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0439\u0442\u0435 \u0441\u0442\u0440\u043e\u043a\u0438 \u0432 \u0432\u0435\u0440\u0445\u043d\u0435\u043c \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0435 (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, <code>USER_ACCOUNTS<\/code>) \u0438\u043b\u0438 \u0441\u0442\u0440\u043e\u0433\u0438\u0439 \u043d\u0438\u0436\u043d\u0438\u0439 \u0440\u0435\u0433\u0438\u0441\u0442\u0440 snake_case (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, <code>user_accounts<\/code>) \u0447\u0442\u043e\u0431\u044b \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u043e\u0432\u0430\u0442\u044c \u043a\u043e\u0434\u0443 \u0432\u0430\u0448\u0435\u0439 \u0440\u0435\u0430\u043b\u044c\u043d\u043e\u0439 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b SQL.<\/li>\n<li><strong>\u0412\u0441\u0435\u0433\u0434\u0430 \u0432\u043a\u043b\u044e\u0447\u0430\u0439\u0442\u0435 \u0442\u0438\u043f\u044b \u0434\u0430\u043d\u043d\u044b\u0445:<\/strong> \u0418\u0437\u0431\u0435\u0433\u0430\u0439\u0442\u0435 \u043e\u0431\u044a\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u043d\u0435\u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u043e\u0433\u043e \u0442\u0435\u043a\u0441\u0442\u0430 \u0441\u0442\u043e\u043b\u0431\u0446\u043e\u0432 \u0431\u0435\u0437 \u0442\u0438\u043f\u043e\u0432. \u042f\u0432\u043d\u043e \u0443\u043a\u0430\u0437\u044b\u0432\u0430\u0439\u0442\u0435 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f, \u0442\u0430\u043a\u0438\u0435 \u043a\u0430\u043a <code>int<\/code>, <code>varchar<\/code>, \u0438\u043b\u0438 <code>boolean<\/code> \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u0442\u043e\u0447\u043d\u043e\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0438\u0435 \u0432\u0430\u0448\u0438\u0445 \u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0441\u043f\u0440\u0430\u0432\u043e\u0447\u043d\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438.<\/li>\n<li><strong>\u0421\u043e\u0445\u0440\u0430\u043d\u044f\u0439\u0442\u0435 \u043c\u0435\u0442\u043a\u0438 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u0439 \u0432 \u0444\u043e\u0440\u043c\u0435 \u0433\u043b\u0430\u0433\u043e\u043b\u043e\u0432:<\/strong> \u041f\u0440\u0438 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0438 \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u043e\u0432 \u0443\u043a\u0430\u0436\u0438\u0442\u0435 \u043a\u0440\u0430\u0442\u043a\u0443\u044e \u0441\u0442\u0440\u043e\u043a\u0443 \u0438\u0437 \u0441\u0442\u0440\u043e\u0447\u043d\u044b\u0445 \u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0445 \u0433\u043b\u0430\u0433\u043e\u043b\u043e\u0432 \u0432 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u0438 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f (\u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, <code>||--o{ : \"\u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442\"<\/code>) \u0434\u043b\u044f \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f \u0431\u0438\u0437\u043d\u0435\u0441-\u043b\u043e\u0433\u0438\u043a\u0438.<\/li>\n<\/ul>\n<h2>\u041f\u0440\u0438\u043c\u0435\u0440\u044b ERD Mermaid.js \u0438\u0437 \u0440\u0435\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043c\u0438\u0440\u0430<\/h2>\n<h3>\u041f\u0440\u0438\u043c\u0435\u0440 1: \u041e\u0441\u043d\u043e\u0432\u043d\u0430\u044f \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u043c\u043e\u0434\u0435\u043b\u044c \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u043e\u0439 \u043a\u043e\u043c\u043c\u0435\u0440\u0446\u0438\u0438 (\u043a\u043b\u044e\u0447\u0438 \u0438 \u0441\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f)<\/h3>\n<p>\u042d\u0442\u043e\u0442 \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u044b\u0439 \u0447\u0435\u0440\u0442\u0435\u0436 \u043c\u043e\u0434\u0435\u043b\u0438\u0440\u0443\u0435\u0442 \u043e\u0441\u043d\u043e\u0432\u043d\u043e\u0439 \u0446\u0438\u043a\u043b \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439 \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u044d\u043b\u0435\u043a\u0442\u0440\u043e\u043d\u043d\u043e\u0439 \u043a\u043e\u043c\u043c\u0435\u0440\u0446\u0438\u0438, \u043f\u043e\u043a\u0430\u0437\u044b\u0432\u0430\u044f, \u043a\u0430\u043a \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0438, \u0437\u0430\u043a\u0430\u0437\u044b \u0438 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u0442\u0441\u043b\u0435\u0436\u0438\u0432\u0430\u043d\u0438\u044f \u043f\u043b\u0430\u0442\u0435\u0436\u0435\u0439 \u0441\u0432\u044f\u0437\u0430\u043d\u044b \u043c\u0435\u0436\u0434\u0443 \u0441\u043e\u0431\u043e\u0439 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0441\u0442\u0440\u043e\u0433\u0438\u0445 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u0432 \u0432\u0438\u0434\u0435 \u043a\u043b\u044e\u0432\u043e\u0432 \u0432\u043e\u0440\u043e\u043d\u0430.<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNqNkM0KwjAQhO+C7xB69wW8iVURfyptPYelXWuwSSS7RcT67qZU8aeC7inMJJlvB12ooHCg+z3hZ7xN0mg1iRNxaYVmlGGhcrFZPCVip0whUIMqO+oRiE7W5XIPtG\/da7\/XHqI4\/P17I2UVsdXopPemL16OmdJQCrYMpQRtK8MdAmLgij6i03i0TkbjdB6t5XISzv7j8Ht0Ie4xDnfo0GQo2R7QdPwCGE9w\/uB4dlzXg4G9PDoZiuBYQoYUvFXVXKrrr\/T+RYEGnY+h4Aa9SHin\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/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\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNqNUMFKw0AQvRf6D0vv\/QFvpakiaiNJPIchGdPF7K7sTijSCEFP\/o0gQQ\/6D7t\/5MYo1UZo5zS8x5t576EOOBQaxHjE\/Myv4iS8WEQx2\/RAN1wS4zm7PNtChjSXBUMBvBygt2DMWuk8XYFZ9ez9eNQvYRTsv95BWWVICdSp545\/cTlmXEDJSBGUKQhVSRo4MARUmZ3XSTRbxrN5chou0\/NFcHKYD59jaOL7jcZr1CgzTEndoBzwBRCu4W7Hx7bjup5O1eankyM2cY19tq\/23bbuyW+te5j8qa0T1PW\/SbzavtjWfnhVY99c4x6\/9J9Sbo38\" \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 Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">erDiagram\r\n    CUSTOMERS {\r\n        int id PK\r\n        string email\r\n        string password_hash\r\n    }\r\n\r\n    ORDERS {\r\n        int id PK\r\n        int customer_id FK\r\n        decimal total_amount\r\n        string status\r\n    }\r\n\r\n    TRANSACTION_LEDGERS {\r\n        int id PK\r\n        int order_id FK\r\n        string reference_token\r\n        string gateway\r\n    }\r\n\r\n    CUSTOMERS ||--o{ ORDERS : \"\u0440\u0430\u0437\u043c\u0435\u0449\u0430\u0435\u0442\"\r\n    ORDERS ||--|| TRANSACTION_LEDGERS : \"\u0433\u0435\u043d\u0435\u0440\u0438\u0440\u0443\u0435\u0442\" <\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNqNUMFKw0AQvRf6D0vv\/QFvpakiaiNJPIchGdPF7K7sTijSCEFP\/o0gQQ\/6D7t\/5MYo1UZo5zS8x5t576EOOBQaxHjE\/Myv4iS8WEQx2\/RAN1wS4zm7PNtChjSXBUMBvBygt2DMWuk8XYFZ9ez9eNQvYRTsv95BWWVICdSp545\/cTlmXEDJSBGUKQhVSRo4MARUmZ3XSTRbxrN5chou0\/NFcHKYD59jaOL7jcZr1CgzTEndoBzwBRCu4W7Hx7bjup5O1eankyM2cY19tq\/23bbuyW+te5j8qa0T1PW\/SbzavtjWfnhVY99c4x6\/9J9Sbo38\" \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 Mermaid 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\/editor\/#mermaid:eNqNkM0KwjAQhO+C7xB69wW8iVURfyptPYelXWuwSSS7RcT67qZU8aeC7inMJJlvB12ooHCg+z3hZ7xN0mg1iRNxaYVmlGGhcrFZPCVip0whUIMqO+oRiE7W5XIPtG\/da7\/XHqI4\/P17I2UVsdXopPemL16OmdJQCrYMpQRtK8MdAmLgij6i03i0TkbjdB6t5XISzv7j8Ht0Ie4xDnfo0GQo2R7QdPwCGE9w\/uB4dlzXg4G9PDoZiuBYQoYUvFXVXKrrr\/T+RYEGnY+h4Aa9SHin\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p id=\"qqEcCcA\"><img fetchpriority=\"high\" alt=\"\" class=\"alignnone size-full wp-image-632\" decoding=\"async\" fetchpriority=\"high\" height=\"817\" sizes=\"(max-width: 268px) 100vw, 268px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903b8be451.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903b8be451.png 268w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903b8be451-98x300.png 98w\" width=\"268\"\/><\/p>\n<p><strong>\u0420\u0430\u0437\u0431\u043e\u0440 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u0430:<\/strong> \u042d\u0442\u0430 \u0441\u0445\u0435\u043c\u0430 \u0447\u0435\u0442\u043a\u043e \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u0435\u0442 \u0433\u0440\u0430\u043d\u0438\u0446\u044b \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439. \u041f\u0440\u0430\u0432\u0438\u043b\u0430 \u0441\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u044f\u044e\u0442, \u0447\u0442\u043e \u043a\u043b\u0438\u0435\u043d\u0442 \u043c\u043e\u0436\u0435\u0442 \u0440\u0430\u0437\u043c\u0435\u0449\u0430\u0442\u044c \u043d\u043e\u043b\u044c \u0438\u043b\u0438 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0437\u0430\u043a\u0430\u0437\u043e\u0432 \u0441 \u0442\u0435\u0447\u0435\u043d\u0438\u0435\u043c \u0432\u0440\u0435\u043c\u0435\u043d\u0438 (<code>||--o{<\/code>), \u0432 \u0442\u043e \u0432\u0440\u0435\u043c\u044f \u043a\u0430\u043a \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u0430\u044f \u0437\u0430\u043f\u0438\u0441\u044c \u0437\u0430\u043a\u0430\u0437\u0430 \u0434\u043e\u043b\u0436\u043d\u0430 \u0433\u0435\u043d\u0435\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0440\u043e\u0432\u043d\u043e \u043e\u0434\u043d\u0443 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0443\u044e \u0437\u0430\u043f\u0438\u0441\u044c \u0432 \u0436\u0443\u0440\u043d\u0430\u043b\u0435 \u0442\u0440\u0430\u043d\u0437\u0430\u043a\u0446\u0438\u0439 (<code>||--||<\/code>).<\/p>\n<h3>\u041f\u0440\u0438\u043c\u0435\u0440 2: \u0421\u0445\u0435\u043c\u0430 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u0440\u043f\u043e\u0440\u0430\u0442\u0438\u0432\u043d\u044b\u043c \u043a\u043e\u043d\u0442\u0435\u043d\u0442\u043e\u043c (\u043f\u0435\u0440\u0435\u0441\u0435\u0447\u0435\u043d\u0438\u0435 \u043c\u043d\u043e\u0433\u0438\u0435-\u043a\u043e-\u043c\u043d\u043e\u0433\u0438\u043c)<\/h3>\n<p>\u042d\u0442\u043e\u0442 \u043f\u0440\u043e\u0434\u0432\u0438\u043d\u0443\u0442\u044b\u0439 \u0447\u0435\u0440\u0442\u0435\u0436 \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u0442 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u0443 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u043d\u0442\u0435\u043d\u0442\u043e\u043c. \u041e\u043d \u043f\u043e\u0434\u0440\u043e\u0431\u043d\u043e \u043e\u0431\u044a\u044f\u0441\u043d\u044f\u0435\u0442, \u043a\u0430\u043a \u0440\u0435\u0448\u0430\u0442\u044c \u0441\u043b\u043e\u0436\u043d\u044b\u0435 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u0438 \u00ab\u043c\u043d\u043e\u0433\u0438\u0435-\u043a\u043e-\u043c\u043d\u043e\u0433\u0438\u043c\u00bb, \u0432\u0432\u043e\u0434\u044f \u044f\u0432\u043d\u0443\u044e \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u044c-\u043c\u043e\u0441\u0442 \u0434\u043b\u044f \u0441\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u044f.<\/p>\n<div class=\"vpascode-viewer-container vpascode-fancy-active\">\n<div class=\"vpascode-header\">\n<span class=\"vpascode-lang-label\">Mermaid<\/span><br \/>\n<a class=\"vpascode-fancy-btn\" href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNqNkU1uwjAQhfdI3GHEulygO9QGhFBIRNh0ZU0d14wU25E9SCDo3RuTtjQ1FZ2VPT9+\/t4o\/0yoPZrxCLooi2pbwam\/xCDLQDWUq2sqsCergYkblWRDs9fXJKsDw6urj0I6y8pyX3ofj\/rD02ybLYrNMvunpkWTStYqSE8tk7O\/no804lPjReSzslyuF4lU6wKLi94DzFfDmkRW2vnjrTqTUYHRtIAhkLaqFpgAFnmere9a+vMb8xQb97xzXgzpL95KZ0xnq4ge34Cv4HyeTt3pLyceYRIXg2TDJNnI\/dEmgr+R+hoeSH6jd53IjHLX9X0AN3qkJw==\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/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\">Mermaid<\/span>\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNqNUc1KAzEQvhf6DqFn+wLeim5LKdtdbC+eQtwNa6CbLMkULK3Qqnjx4KuU4s+ioK+QvJHZXbWuqdSBgcwM833zfaHymJFEkrTZQDbCYDQeoXlVFME4IBajcLBtKZCMJwgYTKjTVZNpsm0CvQB0JuIZjgQHyqEaXTYb1eOoM\/Z6wUnf+ycnJ6lLGVMVSZYBE\/wXfKEGf3KcYr8Thv1hz6HKhAJc8h2g7qA+iwjQRMjZrjmwlCogaYaIUizhNMbEERj4vjfca+nPM7qubDKFcyFxXX3pbSTS1NqKC493iB+hxaLdFvO\/nDhELbPSb\/pBP5qlftK5uWo5P7MXQr\/oV702KwuVmxubtzaX5tqCfsHVjvk2pdh9t8S53ph7\/Wzu9Eavy60Pa3rI8Q==\" \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 Mermaid in VPasCode<\/span>\r\n                    <\/a>\r\n                <\/div>\r\n                                <div class=\"vpascode-code-wrapper\">\r\n                    <pre class=\"lang-mermaid\"><code class=\"language-mermaid\" data-language=\"mermaid\" class=\"language-mermaid\">erDiagram\r\n    POSTS {\r\n        int id PK\r\n        string title\r\n        string slug\r\n        text body_content\r\n    }\r\n\r\n    CATEGORIES {\r\n        int id PK\r\n        string name\r\n        string description\r\n    }\r\n\r\n    POST_CATEGORY_MAPPINGS {\r\n        int post_id PK, FK\r\n        int category_id PK, FK\r\n        timestamp assigned_at\r\n    }\r\n\r\n    COMMENTS {\r\n        int id PK\r\n        int post_id FK\r\n        string author_name\r\n        text comment_body\r\n    }\r\n\r\n    POSTS ||--o{ POST_CATEGORY_MAPPINGS : \"\u0441\u043e\u0434\u0435\u0440\u0436\u0438\u0442\"\r\n    CATEGORIES ||--o{ POST_CATEGORY_MAPPINGS : \"\u043a\u043b\u0430\u0441\u0441\u0438\u0444\u0438\u0446\u0438\u0440\u0443\u0435\u0442\"\r\n    POSTS ||--o{ COMMENTS : \"\u043f\u0440\u0438\u0432\u044f\u0437\u044b\u0432\u0430\u0435\u0442\" <\/code><\/pre>                <\/div>\r\n                <div class=\"vpascode-actions\">\r\n                    <a href=\"https:\/\/www.vpascode.com\/editor\/#mermaid:eNqNUc1KAzEQvhf6DqFn+wLeim5LKdtdbC+eQtwNa6CbLMkULK3Qqnjx4KuU4s+ioK+QvJHZXbWuqdSBgcwM833zfaHymJFEkrTZQDbCYDQeoXlVFME4IBajcLBtKZCMJwgYTKjTVZNpsm0CvQB0JuIZjgQHyqEaXTYb1eOoM\/Z6wUnf+ycnJ6lLGVMVSZYBE\/wXfKEGf3KcYr8Thv1hz6HKhAJc8h2g7qA+iwjQRMjZrjmwlCogaYaIUizhNMbEERj4vjfca+nPM7qubDKFcyFxXX3pbSTS1NqKC493iB+hxaLdFvO\/nDhELbPSb\/pBP5qlftK5uWo5P7MXQr\/oV702KwuVmxubtzaX5tqCfsHVjvk2pdh9t8S53ph7\/Wzu9Eavy60Pa3rI8Q==\" \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 Mermaid 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\/editor\/#mermaid:eNqNkU1uwjAQhfdI3GHEulygO9QGhFBIRNh0ZU0d14wU25E9SCDo3RuTtjQ1FZ2VPT9+\/t4o\/0yoPZrxCLooi2pbwam\/xCDLQDWUq2sqsCergYkblWRDs9fXJKsDw6urj0I6y8pyX3ofj\/rD02ybLYrNMvunpkWTStYqSE8tk7O\/no804lPjReSzslyuF4lU6wKLi94DzFfDmkRW2vnjrTqTUYHRtIAhkLaqFpgAFnmere9a+vMb8xQb97xzXgzpL95KZ0xnq4ge34Cv4HyeTt3pLyceYRIXg2TDJNnI\/dEmgr+R+hoeSH6jd53IjHLX9X0AN3qkJw==\" 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>\u0420\u0435\u0434\u0430\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u0442\u044c Mermaid \u0432 VPasCode<\/span><br \/>\n<\/a>\n<\/div>\n<\/div>\n<p id=\"NkBriQB\"><img loading=\"lazy\" alt=\"\" class=\"alignnone size-full wp-image-633\" decoding=\"async\" height=\"545\" loading=\"lazy\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" src=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903d115d5e.png\" srcset=\"https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903d115d5e.png 709w, https:\/\/www.vpascode.com\/wp-content\/uploads\/2026\/05\/img_6a1903d115d5e-300x231.png 300w\" width=\"709\"\/><\/p>\n<p><strong>\u0420\u0430\u0437\u0431\u043e\u0440 \u0441\u0438\u043d\u0442\u0430\u043a\u0441\u0438\u0441\u0430:<\/strong> \u0414\u043b\u044f \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u044f \u00ab\u043c\u043d\u043e\u0433\u0438\u0435-\u043a\u043e-\u043c\u043d\u043e\u0433\u0438\u043c\u00bb \u043c\u0435\u0436\u0434\u0443 `POSTS` \u0438 `CATEGORIES` \u0441\u043a\u0440\u0438\u043f\u0442 \u0432\u0432\u043e\u0434\u0438\u0442 \u0442\u0430\u0431\u043b\u0438\u0446\u0443 \u043f\u0435\u0440\u0435\u0441\u0435\u0447\u0435\u043d\u0438\u044f (`POST_CATEGORY_MAPPINGS`). \u042d\u0442\u0430 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 \u0441\u043e\u0441\u0442\u0430\u0432\u043d\u044b\u0435 \u043a\u043b\u044e\u0447\u0438, \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u0432\u044b\u0441\u0442\u0443\u043f\u0430\u044e\u0449\u0438\u0435 \u0432 \u0440\u043e\u043b\u0438 \u043f\u0435\u0440\u0432\u0438\u0447\u043d\u044b\u0445 \u0438 \u0432\u043d\u0435\u0448\u043d\u0438\u0445 \u043a\u043b\u044e\u0447\u0435\u0439 (<code>PK FK<\/code>), \u0441\u043e\u0435\u0434\u0438\u043d\u044f\u044f \u0432\u043d\u0435\u0448\u043d\u0438\u0435 \u0443\u0437\u043b\u044b \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043d\u044b\u0445 \u0441\u0432\u044f\u0437\u0435\u0439 \u00ab\u043e\u0434\u0438\u043d \u043a\u043e \u043c\u043d\u043e\u0433\u0438\u043c\u00bb \u0432 \u0432\u0438\u0434\u0435 \u043a\u043b\u044e\u0432\u043e\u0432 \u0432\u043e\u0440\u043e\u043d\u0430.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0427\u0442\u043e \u0442\u0430\u043a\u043e\u0435 \u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c\u0430 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u044c-\u0441\u0432\u044f\u0437\u044c (ERD)? \u042d\u0442\u043e\u0434\u0438\u0430\u0433\u0440\u0430\u043c\u043c\u0430 \u0441\u0443\u0449\u043d\u043e\u0441\u0442\u044c-\u0441\u0432\u044f\u0437\u044c (ERD) \u2014 \u044d\u0442\u043e \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u043d\u044b\u0439 \u0447\u0435\u0440\u0442\u0435\u0436, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0439 \u0434\u043b\u044f \u043f\u0440\u043e\u0435\u043a\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f, \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438 \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u0441\u0445\u0435\u043c \u0440\u0435\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0431\u0430\u0437 \u0434\u0430\u043d\u043d\u044b\u0445. \u041e\u043d \u043e\u043f\u0438\u0441\u044b\u0432\u0430\u0435\u0442 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u044b\u0435 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0434\u0430\u043d\u043d\u044b\u0445 (\u0441\u0443\u0449\u043d\u043e\u0441\u0442\u0438) \u0432 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0438, \u0441\u0442\u043e\u043b\u0431\u0446\u044b (\u0430\u0442\u0440\u0438\u0431\u0443\u0442\u044b), \u0432\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0435 \u0432 \u044d\u0442\u0438 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