{"id":1552,"date":"2026-03-26T14:40:10","date_gmt":"2026-03-26T14:40:10","guid":{"rendered":"https:\/\/www.viz-read.com\/ja\/erd-in-action-production-backend-case-study\/"},"modified":"2026-03-26T14:40:10","modified_gmt":"2026-03-26T14:40:10","slug":"erd-in-action-production-backend-case-study","status":"publish","type":"post","link":"https:\/\/www.viz-read.com\/ja\/erd-in-action-production-backend-case-study\/","title":{"rendered":"\u5b9f\u969b\u306e\u73fe\u5834\u3067\u6d3b\u7528\u3055\u308c\u308bERD\uff1a\u672c\u756a\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306e\u4e8b\u4f8b\u7814\u7a76"},"content":{"rendered":"<p>\u5805\u7262\u306a\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3092\u8a2d\u8a08\u3059\u308b\u3053\u3068\u306f\u3001\u5358\u306a\u308b\u5b66\u8853\u7684\u306a\u6f14\u7fd2\u3067\u306f\u306a\u3044\u3002\u305d\u308c\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5b89\u5b9a\u6027\u3092\u652f\u3048\u308b\u57fa\u76e4\u306a\u306e\u3067\u3042\u308b\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u306f\u3001\u672c\u756a\u74b0\u5883\u306b\u304a\u3051\u308b\u60c5\u5831\u306e\u4fdd\u5b58\u3001\u30ea\u30f3\u30af\u3001\u53d6\u5f97\u306e\u4ed5\u7d44\u307f\u3092\u793a\u3059\u8a2d\u8a08\u56f3\u3068\u306a\u308b\u3002\u30b7\u30b9\u30c6\u30e0\u304c\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u3059\u308b\u969b\u3001\u4e0d\u826f\u306a\u30e2\u30c7\u30eb\u8a2d\u8a08\u306e\u30b3\u30b9\u30c8\u306f\u6307\u6570\u95a2\u6570\u7684\u306b\u5897\u5927\u3059\u308b\u3002\u672c\u30ac\u30a4\u30c9\u3067\u306f\u3001\u8907\u96d1\u306a\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u5185\u3067\u306eERD\u306e\u5b9f\u7528\u7684\u5b9f\u88c5\u3092\u691c\u8a0e\u3057\u3001\u30c7\u30fc\u30bf\u6574\u5408\u6027\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3001\u4fdd\u5b88\u6027\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3002<\/p>\n<p>\u958b\u767a\u8005\u306f\u3057\u3070\u3057\u3070\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\u306b\u6ce8\u529b\u3057\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u4e8c\u6b21\u7684\u306a\u554f\u984c\u3068\u898b\u306a\u3057\u304c\u3061\u3067\u3042\u308b\u3002\u3057\u304b\u3057\u3001\u30b9\u30ad\u30fc\u30de\u306f\u30b7\u30b9\u30c6\u30e0\u304c\u52b9\u7387\u7684\u306b\u5b9f\u884c\u3067\u304d\u308b\u7bc4\u56f2\u3092\u6c7a\u5b9a\u3059\u308b\u3002\u73fe\u5b9f\u306e\u30b7\u30ca\u30ea\u30aa\u3092\u5206\u6790\u3059\u308b\u3053\u3068\u3067\u3001\u7279\u5b9a\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30d9\u30f3\u30c0\u30fc\u306b\u4f9d\u5b58\u305b\u305a\u306b\u3001\u30c7\u30fc\u30bf\u306e\u6b63\u898f\u5316\u3001\u95a2\u4fc2\u306e\u6271\u3044\u3001\u53c2\u7167\u6574\u5408\u6027\u306e\u78ba\u4fdd\u306b\u304a\u3051\u308b\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u3092\u7406\u89e3\u3067\u304d\u308b\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Educational infographic illustrating Entity Relationship Diagram design for a production backend system, featuring five core entities (Organization, User, Project, Task, Audit Log) with rounded flat-design boxes in pastel colors, connected by relationship lines showing one-to-many and many-to-many cardinality, plus key best practices for data integrity, indexing, migrations, and multi-tenant security, all in a clean minimalist style with black outlines and ample white space\" decoding=\"async\" src=\"https:\/\/www.viz-read.com\/wp-content\/uploads\/2026\/03\/erd-production-backend-infographic-flat-design.jpg\"\/><\/figure>\n<\/div>\n<h2>\ud83d\udccb \u696d\u52d9\u30b7\u30ca\u30ea\u30aa<\/h2>\n<p>\u8907\u6570\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u7d44\u7e54\u304c\u5171\u7528\u3059\u308b\u30b5\u30fc\u30d3\u30b9\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u60f3\u5b9a\u3057\u3088\u3046\u3002\u3053\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u7570\u306a\u308b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u7d44\u7e54\u9593\u3067\u53b3\u5bc6\u306a\u9694\u96e2\u3092\u7dad\u6301\u3057\u3064\u3064\u3001\u5404\u7d44\u7e54\u5185\u3067\u306e\u5185\u90e8\u7684\u306a\u67d4\u8edf\u6027\u3092\u8a31\u5bb9\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u4e3b\u306a\u8981\u4ef6\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3042\u308b\uff1a<\/p>\n<ul>\n<li><strong>\u30de\u30eb\u30c1\u30c6\u30ca\u30f3\u30c8\uff1a<\/strong>\u30c7\u30fc\u30bf\u306f\u7d44\u7e54\u5358\u4f4d\u3067\u5206\u96e2\u3055\u308c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<li><strong>\u8907\u96d1\u306a\u30ef\u30fc\u30af\u30d5\u30ed\u30fc\uff1a<\/strong>\u30bf\u30b9\u30af\u306f\u7279\u5b9a\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u3001\u8ffd\u8de1\u3055\u308c\u3001\u95a2\u9023\u4ed8\u3051\u3089\u308c\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<li><strong>\u76e3\u67fb\u30ed\u30b0\uff1a<\/strong>\u30ec\u30b3\u30fc\u30c9\u306b\u5bfe\u3059\u308b\u91cd\u8981\u306a\u5909\u66f4\u306f\u3059\u3079\u3066\u3001\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u305f\u3081\u30ed\u30b0\u306b\u8a18\u9332\u3055\u308c\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<li><strong>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\uff1a<\/strong>\u30b9\u30ad\u30fc\u30de\u306f\u3001\u30af\u30a8\u30ea\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4f4e\u4e0b\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u6570\u767e\u4e07\u4ef6\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<\/ul>\n<p>\u8ab2\u984c\u306f\u3001\u3053\u308c\u3089\u306e\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3092\u3001\u30c7\u30fc\u30bf\u7570\u5e38\u3092\u9632\u3050\u95a2\u4fc2\u69cb\u9020\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u306b\u3042\u308b\u3002\u3088\u304f\u3042\u308b\u8aa4\u308a\u306f\u3001\u904e\u5ea6\u306b\u6b63\u898f\u5316\u3055\u308c\u305f\u69cb\u9020\u3092\u4f5c\u6210\u3057\u3001\u904e\u5270\u306a\u7d50\u5408\u3092\u5fc5\u8981\u3068\u3055\u305b\u308b\u3053\u3068\u3001\u307e\u305f\u306f\u904e\u5ea6\u306b\u975e\u6b63\u898f\u5316\u3055\u308c\u305f\u69cb\u9020\u3092\u4f5c\u6210\u3057\u3001\u30c7\u30fc\u30bf\u306e\u91cd\u8907\u3084\u66f4\u65b0\u7570\u5e38\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u3067\u3042\u308b\u3002<\/p>\n<h2>\ud83d\udd0d \u30b3\u30a2\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u5c5e\u6027<\/h2>\n<p>\u3042\u3089\u3086\u308bERD\u306e\u57fa\u76e4\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u5b9a\u7fa9\u306b\u3042\u308b\u3002\u672c\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\u3067\u306f\u30015\u3064\u306e\u4e3b\u8981\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7279\u5b9a\u3059\u308b\u3002\u5404\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u6c38\u7d9a\u5316\u3055\u308c\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u660e\u78ba\u306a\u6982\u5ff5\u3092\u8868\u3059\u3002\u3053\u308c\u3089\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u95a2\u9023\u3059\u308b\u5c5e\u6027\u306f\u3001\u683c\u7d0d\u3055\u308c\u308b\u30c7\u30fc\u30bf\u306e\u7c92\u5ea6\u3092\u5b9a\u7fa9\u3059\u308b\u3002<\/p>\n<h3>1. \u7d44\u7e54\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/h3>\n<p>\u3053\u308c\u306f\u968e\u5c64\u306e\u6839\u5e79\u3067\u3042\u308b\u3002\u4ed6\u306e\u3059\u3079\u3066\u306e\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u3053\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u30ea\u30f3\u30af\u3055\u308c\u3001\u30c6\u30ca\u30f3\u30c8\u306e\u9694\u96e2\u3092\u5f37\u5236\u3059\u308b\u3002<\/p>\n<ul>\n<li><strong>\u7d44\u7e54ID\uff1a<\/strong>\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3002<\/li>\n<li><strong>\u7d44\u7e54\u540d\uff1a<\/strong>\u4eba\u9593\u304c\u8aad\u307f\u3084\u3059\u3044\u30e9\u30d9\u30eb\u3002<\/li>\n<li><strong>\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3Tier\uff1a<\/strong>\u6a5f\u80fd\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u6c7a\u5b9a\u3059\u308b\u3002<\/li>\n<li><strong>\u4f5c\u6210\u65e5\u6642\uff1a<\/strong>\u76e3\u67fb\u7528\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3002<\/li>\n<\/ul>\n<h3>2. \u30e6\u30fc\u30b6\u30fc\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/h3>\n<p>\u30e6\u30fc\u30b6\u30fc\u306f\u7d44\u7e54\u306b\u6240\u5c5e\u3059\u308b\u304c\u3001\u8907\u6570\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30e1\u30f3\u30d0\u30fc\u306b\u306a\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u8a8d\u8a3c\u60c5\u5831\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u5f93\u3046\u305f\u3081\u306b\u3001\u30d3\u30b8\u30cd\u30b9\u30c7\u30fc\u30bf\u304b\u3089\u5206\u96e2\u3055\u308c\u3066\u3044\u308b\u3002<\/p>\n<ul>\n<li><strong>\u30e6\u30fc\u30b6\u30fcID\uff1a<\/strong>\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3002<\/li>\n<li><strong>\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9:<\/strong>\u8a8d\u8a3c\u304a\u3088\u3073\u9023\u7d61\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u30d1\u30b9\u30ef\u30fc\u30c9\u30cf\u30c3\u30b7\u30e5:<\/strong>\u8cc7\u683c\u60c5\u5831\u306e\u30bb\u30ad\u30e5\u30a2\u306a\u4fdd\u5b58\u5148\u3002<\/li>\n<li><strong>\u5f79\u5272:<\/strong>\u6a29\u9650\u3092\u5b9a\u7fa9\u3057\u307e\u3059\uff08\u7ba1\u7406\u8005\u3001\u30e1\u30f3\u30d0\u30fc\u3001\u95b2\u89a7\u8005\uff09\u3002<\/li>\n<\/ul>\n<h3>3. \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/h3>\n<p>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306f\u4f5c\u696d\u9805\u76ee\u306e\u30b3\u30f3\u30c6\u30ca\u3067\u3059\u3002\u7d44\u7e54\u304c\u6240\u6709\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u4f5c\u696d\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8ID:<\/strong>\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3002<\/li>\n<li><strong>\u7d44\u7e54ID:<\/strong>\u89aa\u30c6\u30ca\u30f3\u30c8\u306b\u30ea\u30f3\u30af\u3059\u308b\u5916\u90e8\u30ad\u30fc\u3002<\/li>\n<li><strong>\u30bf\u30a4\u30c8\u30eb:<\/strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u77ed\u3044\u540d\u524d\u3002<\/li>\n<li><strong>\u30b9\u30c6\u30fc\u30bf\u30b9:<\/strong>\u6709\u52b9\u3001\u30a2\u30fc\u30ab\u30a4\u30d6\u6e08\u307f\u3001\u307e\u305f\u306f\u524a\u9664\u6e08\u307f\u3002<\/li>\n<\/ul>\n<h3>4. \u30bf\u30b9\u30af\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/h3>\n<p>\u4f5c\u696d\u306e\u57fa\u672c\u5358\u4f4d\u3067\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3001\u30ed\u30b0\u3092\u30ea\u30f3\u30af\u3059\u308b\u305f\u3081\u3001\u6700\u3082\u8907\u96d1\u306a\u95a2\u4fc2\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30bf\u30b9\u30afID:<\/strong>\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3002<\/li>\n<li><strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8ID:<\/strong>\u5916\u90e8\u30ad\u30fc\u3002<\/li>\n<li><strong>\u62c5\u5f53\u8005ID:<\/strong>User\u3078\u306e\u5916\u90e8\u30ad\u30fc\u3002<\/li>\n<li><strong>\u671f\u65e5:<\/strong>\u6642\u9593\u5236\u7d04\u3002<\/li>\n<li><strong>\u512a\u5148\u5ea6:<\/strong>\u5217\u6319\u5024\u3002<\/li>\n<\/ul>\n<h3>5. \u30aa\u30fc\u30c7\u30a3\u30c3\u30c8\u30ed\u30b0\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3<\/h3>\n<p>\u91cd\u8981\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5bfe\u3059\u308b\u3059\u3079\u3066\u306e\u5909\u66f4\u3092\u8a18\u9332\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u8ffd\u8de1\u53ef\u80fd\u6027\u304c\u78ba\u4fdd\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30ed\u30b0ID\uff1a<\/strong>\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3002<\/li>\n<li><strong>\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30bf\u30a4\u30d7\uff1a<\/strong>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u30c6\u30fc\u30d6\u30eb\u306f\u3069\u308c\u3067\u3059\u304b\u3002<\/li>\n<li><strong>\u30ec\u30b3\u30fc\u30c9ID\uff1a<\/strong>\u5f71\u97ff\u3092\u53d7\u3051\u305f\u884c\u306f\u3069\u308c\u3067\u3059\u304b\u3002<\/li>\n<li><strong>\u64cd\u4f5c\uff1a<\/strong>\u4f5c\u6210\u3001\u66f4\u65b0\u3001\u524a\u9664\u3002<\/li>\n<li><strong>\u5b9f\u884c\u8005\uff1a<\/strong>\u30e6\u30fc\u30b6\u30fcID\u3002<\/li>\n<li><strong>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\uff1a<\/strong>\u64cd\u4f5c\u306e\u6642\u523b\u3002<\/li>\n<\/ul>\n<h2>\ud83d\udd17 \u95a2\u4fc2\u6027\u3068\u57fa\u6570\u306e\u30e2\u30c7\u30ea\u30f3\u30b0<\/h2>\n<p>\u95a2\u4fc2\u6027\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u30d7\u30ed\u30c0\u30af\u30b7\u30e7\u30f3\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u95a2\u4fc2\u6027\u306f\u5916\u90e8\u30ad\u30fc\u306b\u3088\u3063\u3066\u5f37\u5236\u3055\u308c\u307e\u3059\u3002\u57fa\u6570\uff081\u5bfe1\u30011\u5bfe\u591a\u3001\u591a\u5bfe\u591a\uff09\u306f\u3001\u30c7\u30fc\u30bf\u304c\u3069\u306e\u3088\u3046\u306b\u7167\u4f1a\u3055\u308c\u3001\u66f4\u65b0\u3055\u308c\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<h3>\u7d44\u7e54\u304b\u3089\u30e6\u30fc\u30b6\u30fc<\/h3>\n<p>\u3053\u308c\u306f<strong>1\u5bfe\u591a<\/strong>\u306e\u95a2\u4fc2\u3067\u3059\u30021\u3064\u306e\u7d44\u7e54\u306f\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u30e6\u30fc\u30b6\u30fc\u8a18\u9332\u306f\u30c7\u30fc\u30bf\u9694\u96e2\u306e\u76ee\u7684\u3067\u5358\u4e00\u306e\u7d44\u7e54\u306b\u7d10\u3065\u3051\u3089\u308c\u307e\u3059\u3002\u30c6\u30ca\u30f3\u30c8\u9593\u3067\u306e\u30c7\u30fc\u30bf\u6f0f\u6d29\u3092\u9632\u3050\u305f\u3081\u306b\u3001<code>organization_id<\/code>\u306f\u30e6\u30fc\u30b6\u30fc\u30c6\u30fc\u30d6\u30eb\u4e0a\u306e\u5fc5\u9808\u5916\u90e8\u30ad\u30fc\u3067\u3059\u3002<\/p>\n<h3>\u7d44\u7e54\u304b\u3089\u30d7\u30ed\u30b8\u30a7\u30af\u30c8<\/h3>\n<p>\u540c\u69d8\u306b\u3001\u3053\u308c\u306f<strong>1\u5bfe\u591a<\/strong>\u306e\u95a2\u4fc2\u3067\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306f\u89aa\u7d44\u7e54\u306a\u3057\u3067\u306f\u5b58\u5728\u3067\u304d\u307e\u305b\u3093\u3002\u7d44\u7e54\u304c\u524a\u9664\u3055\u308c\u305f\u5834\u5408\u3001\u30ab\u30b9\u30b1\u30fc\u30c9\u52d5\u4f5c\u3092\u614e\u91cd\u306b\u691c\u8a0e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u6b74\u53f2\u7684\u6587\u8108\u3092\u4fdd\u6301\u3059\u308b\u305f\u3081\u306b\u3001\u30cf\u30fc\u30c9\u524a\u9664\u3067\u306f\u306a\u304f\u30bd\u30d5\u30c8\u524a\u9664\u3092\u9078\u629e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u304b\u3089\u30bf\u30b9\u30af<\/h3>\n<p>\u3082\u3046\u4e00\u3064\u306e<strong>1\u5bfe\u591a<\/strong>\u306e\u95a2\u4fc2\u3067\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306f\u8907\u6570\u306e\u30bf\u30b9\u30af\u3092\u542b\u307f\u3001\u30bf\u30b9\u30af\u306f\u6b63\u78ba\u306b1\u3064\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u5c5e\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u6a19\u6e96\u7684\u306a\u69cb\u9020\u7684\u30ea\u30f3\u30af\u3067\u3059\u3002<\/p>\n<h3>\u30e6\u30fc\u30b6\u30fc\u304b\u3089\u30bf\u30b9\u30af\uff08\u5272\u5f53\uff09<\/h3>\n<p>\u3053\u308c\u306f\u6700\u3082\u91cd\u8981\u306a\u95a2\u4fc2\u3067\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u306f\u8907\u6570\u306e\u30bf\u30b9\u30af\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u3001\u30bf\u30b9\u30af\u306f\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\uff08\u5171\u540c\u4f5c\u696d\uff09\u3002\u3053\u308c\u306b\u306f<strong>\u591a\u5bfe\u591a<\/strong> \u95a2\u4fc2\u3002<\/p>\n<p>\u3053\u308c\u3092\u5b9f\u88c5\u3059\u308b\u305f\u3081\u3001\u7d50\u5408\u30c6\u30fc\u30d6\u30eb\uff08\u3057\u3070\u3057\u3070\u95a2\u9023\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u547c\u3070\u308c\u308b\uff09\u3092\u5c0e\u5165\u3057\u307e\u3059\u3002\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u3088\u308a\u3001\u591a\u5bfe\u591a\u306e\u95a2\u4fc2\u304c2\u3064\u306e1\u5bfe\u591a\u306e\u95a2\u4fc2\u306b\u5206\u5272\u3055\u308c\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30c6\u30fc\u30d6\u30eb\u540d<\/th>\n<th>\u76ee\u7684<\/th>\n<th>\u30ad\u30fc<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Task_Assignees<\/strong><\/td>\n<td>\u30e6\u30fc\u30b6\u30fc\u3068\u30bf\u30b9\u30af\u3092\u30ea\u30f3\u30af\u3059\u308b<\/td>\n<td>Task_ID\u3001User_ID<\/td>\n<\/tr>\n<tr>\n<td><strong>Organization_Tenants<\/strong><\/td>\n<td>\u7d44\u7e54\u3068\u30e6\u30fc\u30b6\u30fc\u3092\u30ea\u30f3\u30af\u3059\u308b<\/td>\n<td>Organization_ID\u3001User_ID<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7d50\u5408\u30c6\u30fc\u30d6\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u8ffd\u52a0\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u683c\u7d0d\u3067\u304d\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001<code>Task_Assignees<\/code>\u30c6\u30fc\u30d6\u30eb\u3067\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u305d\u306e\u7279\u5b9a\u306e\u30bf\u30b9\u30af\u3067\u679c\u305f\u3057\u305f\u5f79\u5272\uff08\u4f8b\uff1a\u30ea\u30fc\u30c0\u30fc\u3001\u8ca2\u732e\u8005\uff09\u3092\u683c\u7d0d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u3053\u308c\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u306a\u5f79\u5272\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u2696\ufe0f \u5236\u7d04\u3068\u30c7\u30fc\u30bf\u6574\u5408\u6027<\/h2>\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u691c\u8a3c\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u5236\u7d04\u306f\u3001\u30c7\u30fc\u30bf\u7834\u640d\u306b\u5bfe\u3059\u308b\u6700\u7d42\u9632\u885b\u7dda\u3068\u306a\u308a\u307e\u3059\u3002\u672c\u756a\u74b0\u5883\u3067\u306f\u3001\u5236\u7d04\u3092\u30b9\u30ad\u30fc\u30de\u30ec\u30d9\u30eb\u3067\u5b9a\u7fa9\u3059\u3079\u304d\u3067\u3059\u3002<\/p>\n<h3>\u53c2\u7167\u6574\u5408\u6027<\/h3>\n<p>\u5916\u90e8\u30ad\u30fc\u306f\u3001\u5b50\u30c6\u30fc\u30d6\u30eb\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3057\u306a\u3044\u89aa\u3092\u53c2\u7167\u3067\u304d\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u5b58\u5728\u3057\u306a\u3044\u30e6\u30fc\u30b6\u30fc\u306b\u30bf\u30b9\u30af\u3092\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001<strong>ON DELETE<\/strong> \u304a\u3088\u3073 <strong>ON UPDATE<\/strong> \u306e\u52d5\u4f5c\u306f\u91cd\u8981\u306a\u6c7a\u5b9a\u4e8b\u9805\u3067\u3059\uff1a<\/p>\n<ul>\n<li><strong>CASCADE\uff1a<\/strong> \u89aa\u304c\u524a\u9664\u3055\u308c\u305f\u5834\u5408\u3001\u3059\u3079\u3066\u306e\u5b50\u304c\u524a\u9664\u3055\u308c\u307e\u3059\u3002\u89aa\u306a\u3057\u3067\u306f\u610f\u5473\u3092\u6301\u305f\u306a\u3044\u5b64\u7acb\u30c7\u30fc\u30bf\uff08\u4f8b\uff1a\u524a\u9664\u3055\u308c\u305f\u6295\u7a3f\u306e\u30b3\u30e1\u30f3\u30c8\uff09\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<li><strong>RESTRICT\uff1a<\/strong> \u5b50\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001\u524a\u9664\u3092\u9632\u6b62\u3057\u307e\u3059\u3002\u8aa4\u3063\u305f\u30c7\u30fc\u30bf\u640d\u5931\u3092\u9632\u3050\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\uff08\u4f8b\uff1a\u6709\u52b9\u306a\u8acb\u6c42\u8a18\u9332\u3092\u6301\u3064\u7d44\u7e54\u3092\u524a\u9664\u3059\u308b\u5834\u5408\uff09\u3002<\/li>\n<li><strong>SET NULL\uff1a<\/strong> \u89aa\u304c\u524a\u9664\u3055\u308c\u305f\u5834\u5408\u3001\u5b50\u306e\u5916\u90e8\u30ad\u30fc\u5217\u304cNULL\u306b\u306a\u308a\u307e\u3059\u3002\u95a2\u4fc2\u304c\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u5834\u5408\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>\u30c1\u30a7\u30c3\u30af\u5236\u7d04<\/h3>\n<p>\u6a19\u6e96SQL\u306f\u30c9\u30e1\u30a4\u30f3\u56fa\u6709\u306e\u30eb\u30fc\u30eb\u3092\u5f37\u5236\u3059\u308b\u305f\u3081\u306b\u30c1\u30a7\u30c3\u30af\u5236\u7d04\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u4f8b\u3068\u3057\u3066:<\/p>\n<ul>\n<li><strong>\u671f\u65e5:<\/strong> \u305d\u306e <code>due_date<\/code> \u5217\u306f <code>created_at<\/code> \u5217\u3088\u308a\u5927\u304d\u304f\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<li><strong>\u512a\u5148\u5ea6:<\/strong> \u305d\u306e <code>priority<\/code> \u5217\u306f\u8a31\u53ef\u3055\u308c\u305f\u5024\u306e\u7279\u5b9a\u306e\u30ea\u30b9\u30c8\u306b\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\uff08\u4f8b\uff1a\u4f4e\u3001\u4e2d\u3001\u9ad8\uff09\u3002<\/li>\n<li><strong>\u91d1\u984d:<\/strong>\u8ca1\u52d9\u95a2\u9023\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u975e\u8ca0\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<\/ul>\n<h3>\u4e00\u610f\u5236\u7d04<\/h3>\n<p>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30c7\u30fc\u30bf\u306e\u4e00\u610f\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u3002\u4f8b\u3048\u3070\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306f\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3067\u4e00\u610f\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3001\u307e\u305f\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u30e2\u30c7\u30eb\u306b\u5fdc\u3058\u3066\u7279\u5b9a\u306e\u7d44\u7e54\u5185\u3067\u306e\u307f\u4e00\u610f\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u8907\u5408\u4e00\u610f\u5236\u7d04\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u7279\u5b9a\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u4e00\u5ea6\u3060\u3051\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\uff08\u91cd\u8907\u5272\u308a\u5f53\u3066\u3092\u9632\u3050\uff09\u3053\u3068\u3092\u4fdd\u8a3c\u3067\u304d\u308b\u3002<\/p>\n<h2>\ud83d\ude80 \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u6226\u7565<\/h2>\n<p>\u30af\u30a8\u30ea\u304c\u9045\u3044\u5834\u5408\u3001\u826f\u597d\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30b9\u30ad\u30fc\u30de\u306f\u7121\u610f\u5473\u3067\u3042\u308b\u3002\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u30c7\u30fc\u30bf\u3092\u8fc5\u901f\u306b\u691c\u7d22\u3067\u304d\u308b\u4ed5\u7d44\u307f\u3067\u3042\u308b\u3002\u3057\u304b\u3057\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u66f8\u304d\u8fbc\u307f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u30b3\u30b9\u30c8\u3092\u4f34\u3046\u3002<\/p>\n<h3>\u30af\u30a8\u30ea\u30d1\u30bf\u30fc\u30f3\u306e\u7279\u5b9a<\/h3>\n<p>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u524d\u306b\u3001\u6700\u3082\u4e00\u822c\u7684\u306a\u8aad\u307f\u53d6\u308a\u64cd\u4f5c\u3092\u5206\u6790\u3059\u308b\u3002\u672c\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\u3067\u306f\u3001\u4e00\u822c\u7684\u306a\u30af\u30a8\u30ea\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u308b:<\/p>\n<ul>\n<li>\u7279\u5b9a\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u3059\u3079\u3066\u306e\u30bf\u30b9\u30af\u3092\u691c\u7d22\u3059\u308b\u3002<\/li>\n<li>\u7d44\u7e54\u5185\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u691c\u7d22\u3059\u308b\u3002<\/li>\n<li>\u7279\u5b9a\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3ID\u306e\u76e3\u67fb\u30ed\u30b0\u3092\u53d6\u5f97\u3059\u308b\u3002<\/li>\n<\/ul>\n<h3>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u914d\u7f6e<\/h3>\n<p>\u5916\u90e8\u30ad\u30fc\u306f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5316\u306e\u6700\u3082\u4e00\u822c\u7684\u306a\u5019\u88dc\u3067\u3042\u308b\u3002\u30af\u30a8\u30ea\u304c\u983b\u7e41\u306b <code>organization_id<\/code> \u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u5834\u5408\u3001\u305d\u306e\u5217\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8a2d\u3051\u308b\u3053\u3068\u304c\u5fc5\u9808\u3067\u3042\u308b\u3002\u3053\u308c\u304c\u306a\u3044\u3068\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u30d5\u30eb\u30c6\u30fc\u30d6\u30eb\u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3057\u3001\u30c7\u30fc\u30bf\u304c\u5897\u3048\u308b\u306b\u3064\u308c\u3066\u8457\u3057\u304f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4f4e\u4e0b\u3059\u308b\u3002<\/p>\n<p>\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u8907\u6570\u306e\u5217\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u30af\u30a8\u30ea\u306b\u6709\u7528\u3067\u3042\u308b\u3002\u4f8b\u3048\u3070\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u983b\u7e41\u306b <code>project_id<\/code> \u304a\u3088\u3073 <code>\u30b9\u30c6\u30fc\u30bf\u30b9<\/code>\u3001(project_id, status) \u4e0a\u306e\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u30012\u3064\u306e\u5225\u3005\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3088\u308a\u3082\u52b9\u7387\u7684\u3067\u3059\u3002<\/p>\n<h3>\u90e8\u5206\u30a4\u30f3\u30c7\u30c3\u30af\u30b9<\/h3>\n<p>\u30c7\u30fc\u30bf\u306e\u30b5\u30d6\u30bb\u30c3\u30c8\u306e\u307f\u304c\u983b\u7e41\u306b\u30af\u30a8\u30ea\u3055\u308c\u308b\u72b6\u6cc1\u3067\u306f\u3001\u90e8\u5206\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u30b9\u30da\u30fc\u30b9\u3092\u7bc0\u7d04\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30b7\u30b9\u30c6\u30e0\u304c\u300c\u300d\u3092\u30af\u30a8\u30ea\u3059\u308b\u5834\u5408\u3001<strong>\u30a2\u30af\u30c6\u30a3\u30d6<\/strong>\u30bf\u30b9\u30af\u306e\u307f\u3092\u5bfe\u8c61\u3068\u3059\u308b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u3001\u884c\u304c\u300c\u300d\u3067\u3042\u308b\u5834\u5408\u306b\u306e\u307f\u542b\u307e\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<code>status = 'Active'<\/code>\u3001\u5168\u30c6\u30fc\u30d6\u30eb\u4e0a\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u5c0f\u3055\u304f\u3001\u8d70\u67fb\u304c\u901f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\ud83d\udee0\ufe0f \u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3068\u30b9\u30ad\u30fc\u30de\u306e\u9032\u5316<\/h2>\n<p>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8981\u4ef6\u306f\u5909\u5316\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3082\u4f8b\u5916\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d0\u30fc\u30b8\u30e7\u30f3A\u304b\u3089\u30d0\u30fc\u30b8\u30e7\u30f3B\u306b\u79fb\u884c\u3059\u308b\u306b\u306f\u3001\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3084\u30c7\u30fc\u30bf\u640d\u5931\u3092\u907f\u3051\u308b\u305f\u3081\u306e\u614e\u91cd\u306a\u8a08\u753b\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u901a\u5e38\u3001\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30b9\u30af\u30ea\u30d7\u30c8\u306b\u3088\u3063\u3066\u7ba1\u7406\u3055\u308c\u307e\u3059\u3002<\/p>\n<h3>\u30ab\u30e9\u30e0\u306e\u8ffd\u52a0<\/h3>\n<p>\u65b0\u3057\u3044\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306f\u4e00\u822c\u7684\u306b\u5b89\u5168\u3067\u3059\u3002\u30ab\u30e9\u30e0\u304cNULL\u3092\u8a31\u5bb9\u3059\u308b\u5834\u5408\u3001\u65e2\u5b58\u306e\u884c\u306b\u306f\u5f71\u97ff\u3057\u307e\u305b\u3093\u3002\u30ab\u30e9\u30e0\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u65e2\u5b58\u306e\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u306b\u9069\u7528\u53ef\u80fd\u306a\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u78ba\u4fdd\u3057\u3001\u5236\u7d04\u9055\u53cd\u3092\u907f\u3051\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u30ab\u30e9\u30e0\u306e\u524a\u9664<\/h3>\n<p>\u30ab\u30e9\u30e0\u3092\u524a\u9664\u3059\u308b\u3053\u3068\u306f\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305a\u30ab\u30e9\u30e0\u3092\u975e\u63a8\u5968\uff08deprecated\uff09\u3068\u3057\u3066\u30de\u30fc\u30af\u3059\u308b\u307b\u3046\u304c\u826f\u3044\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u5185\u306e\u30ab\u30e9\u30e0\u3078\u306e\u53c2\u7167\u3092\u524a\u9664\u3057\u305f\u5f8c\u306b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u7269\u7406\u7684\u306b\u524a\u9664\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e2\u6bb5\u968e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3088\u308a\u3001\u30c7\u30d7\u30ed\u30a4\u671f\u9593\u4e2d\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30a8\u30e9\u30fc\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30ab\u30e9\u30e0\u540d\u306e\u5909\u66f4<\/h3>\n<p>\u53e4\u3044\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u306f\u3001\u8907\u96d1\u306a\u56de\u907f\u7b56\u3092\u7528\u3044\u306a\u3044\u9650\u308a\u3001\u30ab\u30e9\u30e0\u540d\u306e\u5909\u66f4\u306f\u307b\u3068\u3093\u3069\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u901a\u5e38\u306f\u3001\u76ee\u7684\u306e\u540d\u524d\u3092\u6301\u3064\u65b0\u3057\u3044\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u3057\u3001\u30c7\u30fc\u30bf\u3092\u79fb\u884c\u3057\u305f\u5f8c\u3001\u53e4\u3044\u30ab\u30e9\u30e0\u3092\u524a\u9664\u3059\u308b\u307b\u3046\u304c\u826f\u3044\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u79fb\u884c\u4e2d\u3082\u30b9\u30ad\u30fc\u30de\u304c\u5f8c\u65b9\u4e92\u63db\u6027\u3092\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\ud83d\udea7 ERD\u8a2d\u8a08\u306b\u304a\u3051\u308b\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74<\/h2>\n<p>\u7d4c\u9a13\u8c4a\u5bcc\u306a\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u3067\u3059\u3089\u30df\u30b9\u3092\u72af\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u8a2d\u8a08\u6bb5\u968e\u3067\u305d\u308c\u3089\u3092\u56de\u907f\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u904e\u5270\u6b63\u898f\u5316\uff1a<\/strong>\u30c7\u30fc\u30bf\u3092\u3042\u307e\u308a\u306b\u3082\u591a\u304f\u306e\u5c0f\u3055\u306a\u30c6\u30fc\u30d6\u30eb\u306b\u5206\u5272\u3059\u308b\u3068\u3001\u30af\u30a8\u30ea\u304c\u8907\u96d1\u304b\u3064\u9045\u304f\u306a\u308a\u307e\u3059\u3002\u6b63\u898f\u5316\u3068\u30af\u30a8\u30ea\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u30cb\u30fc\u30ba\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/li>\n<li><strong>\u672a\u6b63\u898f\u5316\uff1a<\/strong>\u540c\u3058\u30c7\u30fc\u30bf\u3092\u8907\u6570\u306e\u5834\u6240\u306b\u4fdd\u5b58\u3059\u308b\uff08\u4f8b\uff1a\u3059\u3079\u3066\u306e\u30bf\u30b9\u30af\u30ed\u30b0\u306b\u30e6\u30fc\u30b6\u30fc\u540d\u3092\u7e70\u308a\u8fd4\u3057\u8a18\u9332\u3059\u308b\uff09\u3068\u3001\u66f4\u65b0\u7570\u5e38\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u540d\u304c\u5909\u66f4\u3055\u308c\u305f\u5834\u5408\u3001\u3059\u3079\u3066\u306e\u30ed\u30b0\u30a8\u30f3\u30c8\u30ea\u3092\u66f4\u65b0\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u5faa\u74b0\u4f9d\u5b58\uff1a<\/strong>\u5faa\u74b0\u7684\u306a\u5916\u90e8\u30ad\u30fc\u95a2\u4fc2\u3092\u4f5c\u6210\u3059\u308b\u3068\u3001\u633f\u5165\u3084\u524a\u9664\u6642\u306b\u30c7\u30c3\u30c9\u30ed\u30c3\u30af\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4f9d\u5b58\u95a2\u4fc2\u30b0\u30e9\u30d5\u304c\u6709\u5411\u975e\u5de1\u56de\u30b0\u30e9\u30d5\uff08DAG\uff09\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u306e\u7121\u8996\uff1a<\/strong>\u30ec\u30b3\u30fc\u30c9\u3092\u30cf\u30fc\u30c9\u524a\u9664\u3059\u308b\u3068\u5c65\u6b74\u304c\u5931\u308f\u308c\u307e\u3059\u3002\u76e3\u67fb\u306e\u305f\u3081\u306b\u30ec\u30b3\u30fc\u30c9\u3092\u53ef\u8996\u5316\u3057\u3064\u3064\u3001\u901a\u5e38\u306e\u30d3\u30e5\u30fc\u304b\u3089\u306f\u975e\u8868\u793a\u306b\u3059\u308b\u305f\u3081\u306b\u3001<code>deleted_at<\/code>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u30ab\u30e9\u30e0\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u76e3\u67fb\u306e\u305f\u3081\u306b\u30ec\u30b3\u30fc\u30c9\u3092\u53ef\u8996\u5316\u3057\u3064\u3064\u3001\u6a19\u6e96\u30d3\u30e5\u30fc\u304b\u3089\u306f\u975e\u8868\u793a\u306b\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u6697\u9ed9\u306e\u30c7\u30fc\u30bf\u578b\uff1a<\/strong>\u6c4e\u7528\u578b\uff08\u4f8b\uff1a<code>VARCHAR(255)<\/code>\u3059\u3079\u3066\u306b\u4f7f\u7528\u3059\u308b\u3068\u30b9\u30da\u30fc\u30b9\u3092\u7121\u99c4\u306b\u3057\u307e\u3059\u3002\u4ee3\u308f\u308a\u306b<code>INT<\/code> ID \u306b\u306f\u3001<code>BOOLEAN<\/code> \u30d5\u30e9\u30b0\u306b\u306f\u3001\u9069\u5207\u306a\u5834\u9762\u3067\u306f\u6587\u5b57\u5217\u306b\u7279\u5b9a\u306e\u9577\u3055\u5236\u9650\u3092\u9069\u7528\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u2705 \u672c\u756a\u7528 ERD \u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n<p>\u30b7\u30b9\u30c6\u30e0\u306e\u6301\u7d9a\u53ef\u80fd\u6027\u3068\u5065\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n<ol>\n<li><strong>\u95a2\u4fc2\u306e\u6587\u66f8\u5316\uff1a<\/strong> ERD\u81ea\u4f53\u304c\u6587\u66f8\u3067\u3059\u3002\u5b9f\u969b\u306e\u30b9\u30ad\u30fc\u30de\u3068\u5e38\u306b\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3064\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u81ea\u52d5\u5316\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3057\u3066\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u56f3\u3092\u751f\u6210\u3057\u3001\u6b63\u78ba\u6027\u3092\u691c\u8a3c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u547d\u540d\u898f\u5247\u306e\u6a19\u6e96\u5316\uff1a<\/strong> \u6b21\u306e\u547d\u540d\u898f\u5247\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<code>snake_case<\/code> \u30c6\u30fc\u30d6\u30eb\u304a\u3088\u3073\u30ab\u30e9\u30e0\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002\u5916\u90e8\u30ad\u30fc\u306b\u306f\u95a2\u4fc2\u540d\u3092\u63a5\u982d\u8f9e\u3068\u3057\u3066\u4ed8\u3051\u308b\uff08\u4f8b\uff1a<code>organization_id<\/code> \u3067\u306f\u306a\u304f\u3001\u5358\u306b<code>org_id<\/code> \u3068\u3059\u308b\u3053\u3068\u3067\u660e\u78ba\u6027\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>UUID \u3068\u81ea\u52d5\u5897\u5206\u306e\u9078\u629e\uff1a<\/strong> \u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u30de\u30fc\u30b8\u3059\u308b\u969b\u306b\u885d\u7a81\u3092\u9632\u3050\u305f\u3081\u306b UUID \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u5358\u4e00\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u81ea\u52d5\u5897\u5206\u306e\u6574\u6570\u306e\u65b9\u304c\u3088\u308a\u30b3\u30f3\u30d1\u30af\u30c8\u3067\u9ad8\u901f\u3067\u3059\u3002<\/li>\n<li><strong>\u6210\u9577\u3092\u898b\u636e\u3048\u305f\u8a2d\u8a08\uff1a<\/strong> \u30d1\u30fc\u30c6\u30a3\u30b7\u30e7\u30cb\u30f3\u30b0\u3092\u8003\u616e\u3057\u3066\u8a2d\u8a08\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30c6\u30fc\u30d6\u30eb\u304c\u6570\u5341\u5104\u884c\u306b\u9054\u3059\u308b\u3068\u4e88\u60f3\u3055\u308c\u308b\u5834\u5408\u3001<code>organization_id<\/code>.<\/li>\n<li><strong>\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u306e\u30ec\u30d3\u30e5\u30fc\uff1a<\/strong> \u30b9\u30ed\u30fc\u30af\u30a8\u30ea\u30ed\u30b0\u3092\u5b9a\u671f\u7684\u306b\u78ba\u8a8d\u3057\u3001\u6b20\u843d\u3057\u3066\u3044\u308b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3084\u975e\u52b9\u7387\u306a\u7d50\u5408\u3092\u7279\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ol>\n<h2>\ud83d\udd04 \u30b9\u30ad\u30fc\u30de\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb<\/h2>\n<p>ERD\u306f\u9759\u7684\u306a\u6587\u66f8\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u88fd\u54c1\u3068\u3068\u3082\u306b\u9032\u5316\u3057\u307e\u3059\u3002\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306f\u901a\u5e38\u3001\u4ee5\u4e0b\u306e\u6bb5\u968e\u3092\u7d4c\u307e\u3059\uff1a<\/p>\n<ul>\n<li><strong>\u8a2d\u8a08\u30d5\u30a7\u30fc\u30ba\uff1a<\/strong> 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\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306b\u304a\u3051\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8003\u616e\u4e8b\u9805<\/h2>\n<p>\u30c7\u30fc\u30bf\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u3068\u6df1\u304f\u7d50\u3073\u3064\u3044\u3066\u3044\u307e\u3059\u3002\u884c\u30ec\u30d9\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff08RLS\uff09\u30dd\u30ea\u30b7\u30fc\u306f\u3001\u901a\u5e38\u3001ERD\u306e\u69cb\u9020\u306b\u4f9d\u5b58\u3057\u3066\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3082\u3057<code>organization_id<\/code>\u304c\u9069\u5207\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4ed8\u3051\u3055\u308c\u305a\u3001\u5f37\u5236\u3055\u308c\u306a\u3044\u5834\u5408\u3001Organization A\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u8aa4\u3063\u3066Organization B\u306e\u30c7\u30fc\u30bf\u3092\u7167\u4f1a\u3057\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u6a5f\u5bc6\u30c7\u30fc\u30bf\u306f\u5206\u96e2\u3059\u3079\u304d\u3067\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u304c\u652f\u6255\u3044\u60c5\u5831\u3092\u6271\u3046\u5834\u5408\u3001\u305d\u306e\u30c7\u30fc\u30bf\u306f\u4e00\u822c\u7684\u306a\u30e6\u30fc\u30b6\u30fc\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u3068\u6df7\u5728\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u3088\u308a\u53b3\u683c\u306a\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3092\u6301\u3064\u5225\u3005\u306e\u30b9\u30ad\u30fc\u30de\u3084\u30c6\u30fc\u30d6\u30eb\u306b\u914d\u7f6e\u3059\u3079\u304d\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6f0f\u6d29\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306e\u88ab\u5bb3\u7bc4\u56f2\u3092\u5236\u9650\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\ud83d\udcdd 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content=\"\u73fe\u5b9f\u4e16\u754c\u306eERD\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\u3092\u691c\u8a3c\u3057\u307e\u3057\u3087\u3046\u3002\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u672c\u756a\u30b7\u30b9\u30c6\u30e0\u306e\u305f\u3081\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u3001\u95a2\u4fc2\u6027\u3001\u6574\u5408\u6027\u3092\u5b66\u3073\u307e\u3059\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.viz-read.com\/ja\/erd-in-action-production-backend-case-study\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ERD\u306e\u5b9f\u8df5\uff1a\u672c\u756a\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3 \ud83d\udee0\ufe0f\" \/>\n<meta property=\"og:description\" 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