{"id":1709,"date":"2026-03-25T01:27:15","date_gmt":"2026-03-25T01:27:15","guid":{"rendered":"https:\/\/www.viz-read.com\/ja\/erd-checklist-database-model-handoff\/"},"modified":"2026-03-25T01:27:15","modified_gmt":"2026-03-25T01:27:15","slug":"erd-checklist-database-model-handoff","status":"publish","type":"post","link":"https:\/\/www.viz-read.com\/ja\/erd-checklist-database-model-handoff\/","title":{"rendered":"ERD\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\uff1a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30e2\u30c7\u30eb\u3092\u5f15\u304d\u6e21\u3059\u524d\u306e10\u306e\u5fc5\u9808\u30b9\u30c6\u30c3\u30d7"},"content":{"rendered":"<p>\u5805\u7262\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u8a2d\u8a08\u3059\u308b\u3053\u3068\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u306b\u304a\u3051\u308b\u6700\u3082\u91cd\u8981\u306a\u30bf\u30b9\u30af\u306e\u4e00\u3064\u3067\u3059\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u306f\u3001\u30c7\u30fc\u30bf\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u8a2d\u8a08\u56f3\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u57fa\u790e\u304c\u4e0d\u5b8c\u5168\u3067\u3042\u308c\u3070\u3001\u305d\u306e\u4e0a\u306b\u69cb\u7bc9\u3055\u308c\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001\u30c7\u30fc\u30bf\u6574\u5408\u6027\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u9762\u3067\u554f\u984c\u3092\u62b1\u3048\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u958b\u767a\u8005\u3084\u30c7\u30d7\u30ed\u30a4\u30c1\u30fc\u30e0\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30e2\u30c7\u30eb\u3092\u5f15\u304d\u6e21\u3059\u524d\u306b\u3001\u53b3\u683c\u306a\u30ec\u30d3\u30e5\u30fc\u624b\u9806\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001ERD\u3092\u691c\u8a3c\u3059\u308b\u305f\u3081\u306e10\u306e\u5fc5\u9808\u30b9\u30c6\u30c3\u30d7\u3092\u7d39\u4ecb\u3057\u3001\u30c7\u30fc\u30bf\u69cb\u9020\u304c\u672c\u756a\u74b0\u5883\u306b\u9069\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p>\u9069\u5207\u306b\u69cb\u9020\u5316\u3055\u308c\u305fERD\u306f\u3001\u91cd\u8907\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u5236\u7d04\u3092\u5f37\u5236\u3057\u3001\u30c7\u30fc\u30bf\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u95a2\u4fc2\u3092\u660e\u78ba\u306b\u3057\u307e\u3059\u3002\u691c\u8a3c\u30b9\u30c6\u30c3\u30d7\u3092\u98db\u3070\u3059\u3068\u3001\u958b\u767a\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306e\u5f8c\u534a\u3067\u9ad8\u30b3\u30b9\u30c8\u306a\u518d\u8a2d\u8a08\u3092\u4f59\u5100\u306a\u304f\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3067\u306f\u3001\u547d\u540d\u898f\u5247\u3001\u6b63\u898f\u5316\u3001\u5236\u7d04\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u306e\u57fa\u6e96\u3092\u30ab\u30d0\u30fc\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b9\u30c6\u30c3\u30d7\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u30e2\u30c7\u30eb\u306e\u4fe1\u983c\u6027\u3068\u4fdd\u5b88\u6027\u3092\u78ba\u4fdd\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img alt=\"Hand-drawn whiteboard infographic illustrating 10 essential steps for validating an Entity Relationship Diagram (ERD) before database handoff: naming conventions, primary key strategy, foreign key mapping, normalization rules, data type selection, constraints enforcement, indexing strategy, audit fields, security compliance, and schema documentation, with color-coded markers and visual icons for each concept\" decoding=\"async\" src=\"https:\/\/www.viz-read.com\/wp-content\/uploads\/2026\/03\/erd-checklist-10-steps-database-model-validation-whiteboard-infographic.jpg\"\/><\/figure>\n<\/div>\n<h2>1. \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u547d\u540d\u898f\u5247\u3092\u78ba\u8a8d\u3059\u308b \ud83c\udff7\ufe0f<\/h2>\n<p>\u547d\u540d\u306e\u4e00\u8cab\u6027\u306f\u6df7\u4e71\u3092\u9632\u3050\u7b2c\u4e00\u306e\u9632\u885b\u7dda\u3067\u3059\u3002\u3059\u3079\u3066\u306e\u30c6\u30fc\u30d6\u30eb\uff08\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff09\u3068\u30ab\u30e9\u30e0\uff08\u5c5e\u6027\uff09\u306f\u3001\u6a19\u6e96\u5316\u3055\u308c\u305f\u547d\u540d\u898f\u5247\u306b\u5f93\u308f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u547d\u540d\u304c\u4e00\u8cab\u6027\u3092\u6b20\u304f\u3068\u3001SQL\u30af\u30a8\u30ea\u306e\u4f5c\u6210\u3084\u4fdd\u5b88\u4f5c\u696d\u306b\u304a\u3044\u3066\u66d6\u6627\u3055\u304c\u751f\u3058\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5358\u6570\u307e\u305f\u306f\u8907\u6570\u3092\u4e00\u8cab\u3057\u3066\u4f7f\u7528\u3059\u308b\uff1a<\/strong> \u30c6\u30fc\u30d6\u30eb\u540d\u306b\u4e00\u3064\u306e\u30b9\u30bf\u30a4\u30eb\uff08\u4f8b\uff1a<code>User<\/code> \u3068 <code>Users<\/code>\uff09\u3092\u9078\u3073\u3001\u30b9\u30ad\u30fc\u30de\u5168\u4f53\u306b\u9069\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6982\u5ff5\u30e2\u30c7\u30eb\u3067\u306f\u4e00\u822c\u7684\u306b\u5358\u6570\u540d\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u304c\u3001\u7269\u7406\u7684\u5b9f\u88c5\u3067\u306f\u8907\u6570\u5f62\u304c\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u4e88\u7d04\u8a9e\u3092\u907f\u3051\u308b\uff1a<\/strong> \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u56fa\u6709\u306e\u4e88\u7d04\u8a9e\uff08\u4f8b\uff1a<code>Order<\/code>, <code>Group<\/code>, <code>Index<\/code>\uff09\u3068\u885d\u7a81\u3057\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e88\u7d04\u8a9e\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30a8\u30b9\u30b1\u30fc\u30d7\u6587\u5b57\u3092\u983b\u7e41\u306b\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u30b3\u30fc\u30c9\u306e\u53ef\u8aad\u6027\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u533a\u5207\u308a\u6587\u5b57\u306b\u30a2\u30f3\u30c0\u30fc\u30b9\u30b3\u30a2\u3092\u4f7f\u7528\u3059\u308b\uff1a<\/strong> \u30ab\u30e9\u30e0\u3084\u30c6\u30fc\u30d6\u30eb\u306b snake_case \u3092\u63a1\u7528\u3059\u308b\uff08\u4f8b\uff1a<code>user_profile<\/code>\uff09\u3068\u3059\u308b\u3053\u3068\u3067\u3001\u7570\u306a\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30f3\u30b8\u30f3\u9593\u3067\u53ef\u8aad\u6027\u3092\u7dad\u6301\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u7701\u7565\u8a9e\u3092\u907f\u3051\u308b\uff1a<\/strong> \u666e\u904d\u7684\u306b\u7406\u89e3\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3092\u9664\u304d\u3001\u7701\u7565\u8a9e\u306f\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002<code>cust_id<\/code> \u306f <code>cid<\/code> \u3088\u308a\u826f\u3044\u3067\u3059\u3002\u660e\u78ba\u3055\u306f\u77ed\u3055\u3088\u308a\u3082\u5e38\u306b\u512a\u5148\u3055\u308c\u308b\u3079\u304d\u3067\u3059\u3002<\/li>\n<\/ul>\n<h2>2. \u4e3b\u30ad\u30fc\u6226\u7565\u3092\u5b9a\u7fa9\u3059\u308b \ud83d\udd11<\/h2>\n<p>\u3059\u3079\u3066\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u3001\u30ec\u30b3\u30fc\u30c9\u3092\u533a\u5225\u3059\u308b\u305f\u3081\u306e\u56fa\u6709\u306e\u8b58\u5225\u5b50\u304c\u5fc5\u8981\u3067\u3059\u3002\u30d7\u30e9\u30a4\u30de\u30ea\u30fc\u30ad\u30fc\u306e\u9078\u629e\u306f\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f5c\u6210\u3001\u304a\u3088\u3073\u30c7\u30fc\u30bf\u306e\u95a2\u4fc2\u6027\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30b5\u30ed\u30b2\u30fc\u30c8\u30ad\u30fc vs. \u30ca\u30c1\u30e5\u30e9\u30eb\u30ad\u30fc\uff1a<\/strong>\u30b5\u30ed\u30b2\u30fc\u30c8\u30ad\u30fc\uff08\u81ea\u52d5\u5897\u5206\u6574\u6570\u3084UUID\u306e\u3088\u3046\u306a\u4eba\u5de5\u7684\u306aID\uff09\u304b\u3001\u30ca\u30c1\u30e5\u30e9\u30eb\u30ad\u30fc\uff08\u65e2\u306b\u5b58\u5728\u3059\u308b\u30c7\u30fc\u30bf\u3001\u4f8b\u3048\u3070\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\uff09\u306e\u3069\u3061\u3089\u3092\u4f7f\u7528\u3059\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30ca\u30c1\u30e5\u30e9\u30eb\u30ad\u30fc\u306f\u6642\u9593\u3068\u3068\u3082\u306b\u5909\u66f4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u5b89\u5b9a\u6027\u3092\u91cd\u8996\u3059\u308b\u5834\u5408\u3001\u30b5\u30ed\u30b2\u30fc\u30c8\u30ad\u30fc\u304c\u597d\u307e\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f5c\u6210\u306e\u5f71\u97ff\uff1a<\/strong>\u30d7\u30e9\u30a4\u30de\u30ea\u30fc\u30ad\u30fc\u306f\u81ea\u52d5\u7684\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5316\u3055\u308c\u307e\u3059\u3002\u9078\u629e\u3057\u305f\u30ad\u30fc\u306e\u7a2e\u985e\u304c\u30b3\u30f3\u30d1\u30af\u30c8\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5927\u304d\u306a\u30ad\u30fc\uff08\u9577\u6587\u306e\u6587\u5b57\u5217\u306a\u3069\uff09\u306f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u80a5\u5927\u5316\u3055\u305b\u3001\u7d50\u5408\u64cd\u4f5c\u3092\u9045\u304f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u4e00\u610f\u6027\u5236\u7d04\uff1a<\/strong> \u660e\u793a\u7684\u306b\u30d7\u30e9\u30a4\u30de\u30ea\u30fc\u30ad\u30fc\u5217\u306b <code>NOT NULL<\/code> \u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30d7\u30e9\u30a4\u30de\u30ea\u30fc\u30ad\u30fc\u306f\u3044\u304b\u306a\u308b\u72b6\u6cc1\u4e0b\u3067\u3082null\u5024\u3092\u542b\u3093\u3067\u306f\u3044\u3051\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u8907\u5408\u30ad\u30fc\uff1a<\/strong> \u30c6\u30fc\u30d6\u30eb\u306b\u8907\u5408\u30d7\u30e9\u30a4\u30de\u30ea\u30fc\u30ad\u30fc\uff08\u8907\u6570\u306e\u5217\uff09\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u53c2\u7167\u3059\u308b\u3059\u3079\u3066\u306e\u95a2\u4fc2\u304c\u8907\u6570\u306e\u5217\u3092\u51e6\u7406\u3067\u304d\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u304c\u8907\u96d1\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>3. \u5916\u90e8\u30ad\u30fc\u95a2\u4fc2\u3092\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b \ud83d\udd17<\/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\u95a2\u4fc2\u6027\u306e\u8aa4\u3063\u305f\u30de\u30c3\u30d4\u30f3\u30b0\u306f\u3001\u30c7\u30fc\u30bf\u306e\u30aa\u30fc\u30d5\u30a1\u30f3\u5316\u3084\u53c2\u7167\u6574\u5408\u6027\u306e\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u57fa\u6570\uff1a<\/strong>\u95a2\u4fc2\u6027\u304c1\u5bfe1\u30011\u5bfe\u591a\u3001\u591a\u5bfe\u591a\u306e\u3044\u305a\u308c\u3067\u3042\u308b\u304b\u3092\u660e\u78ba\u306b\u5b9a\u7fa9\u3057\u3066\u304f\u3060\u3055\u3044\u30021\u5bfe\u591a\u306f\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u6700\u3082\u4e00\u822c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/li>\n<li><strong>\u591a\u5bfe\u591a\u306e\u89e3\u6c7a\uff1a<\/strong> \u591a\u5bfe\u591a\u306e\u95a2\u4fc2\u306b\u306f\u3001\u30b8\u30e7\u30a4\u30f3\u30c6\u30fc\u30d6\u30eb\uff08\u30ea\u30f3\u30af\u30c6\u30fc\u30d6\u30eb\uff09\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u4e21\u65b9\u306e\u89aa\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304b\u3089\u306e\u5916\u90e8\u30ad\u30fc\u3092\u542b\u307f\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u72ec\u81ea\u306e\u5c5e\u6027\u3082\u6301\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u53c2\u7167\u52d5\u4f5c\uff1a<\/strong> \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u66f4\u65b0\u3084\u524a\u9664\u3092\u3069\u306e\u3088\u3046\u306b\u51e6\u7406\u3059\u3079\u304d\u304b\u3092\u6307\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u822c\u7684\u306a\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u306f <code>CASCADE<\/code> \uff08\u5b50\u30ec\u30b3\u30fc\u30c9\u3092\u524a\u9664\u3059\u308b\uff09\u3001<code>SET NULL<\/code>\u3001\u307e\u305f\u306f<code>RESTRICT<\/code> \uff08\u524a\u9664\u3092\u7981\u6b62\u3059\u308b\uff09\u3002\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u8981\u4ef6\u306b\u57fa\u3065\u3044\u3066\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u81ea\u5df1\u53c2\u7167\uff1a<\/strong> \u30c6\u30fc\u30d6\u30eb\u304c\u81ea\u5206\u81ea\u8eab\u3092\u53c2\u7167\u3059\u308b\u5834\u5408\uff08\u4f8b\uff1a\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u5217\u3092\u6301\u3064\u5f93\u696d\u54e1\u30c6\u30fc\u30d6\u30eb\uff09\u3001\u30b9\u30ad\u30fc\u30de\u30ec\u30d3\u30e5\u30fc\u4e2d\u306b\u6df7\u4e71\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3053\u306e\u95a2\u4fc2\u3092\u660e\u78ba\u306b\u30e9\u30d9\u30eb\u4ed8\u3051\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<h2>4. \u30c7\u30fc\u30bf\u6b63\u898f\u5316\u30eb\u30fc\u30eb\u3092\u9069\u7528\u3059\u308b \ud83e\uddf9<\/h2>\n<p>\u6b63\u898f\u5316\u306f\u30c7\u30fc\u30bf\u306e\u91cd\u8907\u3092\u6e1b\u3089\u3057\u3001\u6574\u5408\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u73fe\u4ee3\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a\u306e\u305f\u3081\u3001\u4e00\u90e8\u306e\u5834\u5408\u306f\u975e\u6b63\u898f\u5316\u3092\u884c\u3046\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u6b63\u898f\u5316\u306e\u5f62\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6b63\u898f\u5f62<\/th>\n<th>\u8981\u4ef6<\/th>\n<th>\u5229\u70b9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1NF\uff08\u7b2c\u4e00\u6b63\u898f\u5f62\uff09<\/td>\n<td>\u539f\u5b50\u5024\u3001\u7e70\u308a\u8fd4\u3057\u30b0\u30eb\u30fc\u30d7\u306a\u3057<\/td>\n<td>\u5404\u30bb\u30eb\u306b\u5358\u4e00\u306e\u5024\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>2NF\uff08\u7b2c\u4e8c\u6b63\u898f\u5f62\uff09<\/td>\n<td>\u90e8\u5206\u7684\u4f9d\u5b58\u95a2\u4fc2\u306a\u3057<\/td>\n<td>\u975e\u30ad\u30fc\u5217\u304c\u30ad\u30fc\u5168\u4f53\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>3NF\uff08\u7b2c\u4e09\u6b63\u898f\u5f62\uff09<\/td>\n<td>\u63a8\u79fb\u7684\u4f9d\u5b58\u95a2\u4fc2\u306a\u3057<\/td>\n<td>\u975e\u30ad\u30fc\u5217\u304c\u30ad\u30fc\u306e\u307f\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3059\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li><strong>\u5197\u9577\u6027\u3092\u907f\u3051\u308b\uff1a<\/strong> \u540c\u3058\u60c5\u5831\u304c\u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u66f4\u65b0\u7570\u5e38\u3092\u9632\u3050\u305f\u3081\u306b1\u304b\u6240\u306b\u683c\u7d0d\u3059\u3079\u304d\u3067\u3042\u308b\u3002<\/li>\n<li><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u53d6\u308b\uff1a<\/strong> \u6975\u7aef\u306a\u6b63\u898f\u5316\u306f\u8907\u96d1\u306a\u7d50\u5408\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u30af\u30a8\u30ea\u6700\u9069\u5316\u306e\u305f\u3081\u306b\u610f\u56f3\u7684\u306b\u975e\u6b63\u898f\u5316\u3092\u884c\u3063\u305f\u5834\u5408\u306f\u3001\u305d\u306e\u6c7a\u5b9a\u3092\u6587\u66f8\u5316\u3059\u308b\u3002<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u4f9d\u5b58\u95a2\u4fc2\u3092\u78ba\u8a8d\u3059\u308b\uff1a<\/strong> \u30ab\u30e9\u30e0\u304c\u4e3b\u30ad\u30fc\u306b\u8ad6\u7406\u7684\u306b\u4f9d\u5b58\u3057\u3066\u304a\u308a\u3001\u4ed6\u306e\u975e\u30ad\u30fc\u5217\u306b\u4f9d\u5b58\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n<\/ul>\n<h2>5. \u9069\u5207\u306a\u30c7\u30fc\u30bf\u578b\u3092\u9078\u629e\u3059\u308b \ud83d\udccf<\/h2>\n<p>\u4e0d\u9069\u5207\u306a\u30c7\u30fc\u30bf\u578b\u3092\u9078\u629e\u3059\u308b\u3068\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u7a7a\u9593\u306e\u7121\u99c4\u306b\u306a\u308a\u3001\u8a08\u7b97\u30a8\u30e9\u30fc\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n<ul>\n<li><strong>\u6574\u6570\u306e\u7cbe\u5ea6\uff1a<\/strong> \u4f7f\u7528\u3059\u308b\uff1a<code>TINYINT<\/code> \u5c0f\u3055\u306a\u6570\uff080-255\uff09\u306b\u4f7f\u7528\u3057\u3001<code>BIGINT<\/code> \u5927\u304d\u306a\u8b58\u5225\u5b50\u306b\u4f7f\u7528\u3059\u308b\u3002\u3059\u3079\u3066\u306e\u7528\u9014\u306b<code>INT<\/code> \u3092\u4f7f\u7528\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<code>SMALLINT<\/code>\u3067\u5341\u5206\u306a\u5834\u5408\u306f\u3002<\/li>\n<li><strong>\u6587\u5b57\u5217\u306e\u9577\u3055\uff1a<\/strong> \u4e00\u822c\u7684\u306a\u3082\u306e\u3092\u4f7f\u7528\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044 <code>TEXT<\/code> \u307e\u305f\u306f <code>VARCHAR(MAX)<\/code> \u5fc5\u8981\u304c\u306a\u3044\u9650\u308a\u4f7f\u7528\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u7279\u5b9a\u306e\u9577\u3055\u3092\u5b9a\u7fa9\u3057\u3066\u304f\u3060\u3055\u3044\uff08\u4f8b\uff1a<code>VARCHAR(50)<\/code> \u72b6\u614b\u30b3\u30fc\u30c9\u7528\uff09\u30c7\u30fc\u30bf\u306e\u4e0a\u9650\u3092\u5f37\u5236\u3057\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/li>\n<li><strong>\u65e5\u4ed8\u3068\u6642\u523b\uff1a<\/strong> \u4f7f\u7528\u3059\u308b<code>TIMESTAMP<\/code> \u307e\u305f\u306f <code>DATETIME<\/code> \u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306e\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u3002\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u304c\u4e00\u8cab\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\uff08ISO 8601\u306f\u6a19\u6e96\u3067\u3059\uff09\u3002\u65e5\u4ed8\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u4fdd\u5b58\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/li>\n<li><strong>\u8ad6\u7406\u5024\uff1a<\/strong> \u5229\u7528\u53ef\u80fd\u306a\u5834\u5408\u306f\u30cd\u30a4\u30c6\u30a3\u30d6\u306a\u8ad6\u7406\u578b\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306f<code>TINYINT(1)<\/code> \u307e\u305f\u306f <code>CHAR(1)<\/code>\u3002\u8ad6\u7406\u5024\u3092\u6587\u5b57\u5217\uff08&#8221;yes&#8221;\/&#8221;no&#8221;\uff09\u3068\u3057\u3066\u4fdd\u5b58\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<h2>6. \u5236\u7d04\u3068\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u5f37\u5236\u3059\u308b \u2696\ufe0f<\/h2>\n<p>\u5236\u7d04\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30ec\u30d9\u30eb\u3067\u306e\u30c7\u30fc\u30bf\u54c1\u8cea\u3092\u4fdd\u8b77\u3057\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u691c\u8a3c\u306b\u306e\u307f\u983c\u308b\u306e\u306f\u5371\u967a\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>NULL\u8a31\u5bb9\u306a\u3057\uff1a<\/strong> \u91cd\u8981\u306a\u5217\u3092<code>NOT NULL<\/code>\u3068\u30de\u30fc\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u306e\u6b20\u843d\u304c\u30ec\u30dd\u30fc\u30c8\u3084\u8ad6\u7406\u51e6\u7406\u3092\u7834\u58ca\u3059\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002<\/li>\n<li><strong>\u4e00\u610f\u5236\u7d04\uff1a<\/strong>\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3084\u30e6\u30fc\u30b6\u30fc\u540d\u306a\u3069\u306e\u5217\u306b\u4e00\u610f\u5236\u7d04\u3092\u9069\u7528\u3057\u3066\u3001\u91cd\u8907\u30a8\u30f3\u30c8\u30ea\u3092\u9632\u304e\u307e\u3059\u3002<\/li>\n<li><strong>\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\uff1a<\/strong> \u30b9\u30c6\u30fc\u30bf\u30b9\u5217\u306b\u610f\u5473\u306e\u3042\u308b\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u8a2d\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\uff08\u4f8b\uff1a<code>status = 'active'<\/code>) \u307e\u305f\u306f\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u4f7f\u7528\u3057\u3066\u3001\u624b\u52d5\u5165\u529b\u306e\u8aa4\u308a\u3092\u56de\u907f\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30c1\u30a7\u30c3\u30af\u5236\u7d04\uff1a<\/strong> \u30c1\u30a7\u30c3\u30af\u5236\u7d04\u3092\u4f7f\u7528\u3057\u3066\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3092\u691c\u8a3c\u3057\u307e\u3059\uff08\u4f8b\uff1a<code>\u5e74\u9f62 &gt; 18<\/code> \u307e\u305f\u306f <code>\u4fa1\u683c &gt; 0<\/code>)\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u304c\u30bd\u30fc\u30b9\u306b\u304b\u304b\u308f\u3089\u305a\u8ad6\u7406\u7684\u306a\u30eb\u30fc\u30eb\u306b\u5f93\u3046\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>7. \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u6226\u7565\u3092\u8a08\u753b\u3059\u308b \ud83d\ude80<\/h2>\n<p>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u30c7\u30fc\u30bf\u306e\u53d6\u5f97\u3092\u9ad8\u901f\u5316\u3057\u307e\u3059\u304c\u3001\u66f8\u304d\u8fbc\u307f\u64cd\u4f5c\u3092\u9045\u304f\u3057\u307e\u3059\u3002\u30d0\u30e9\u30f3\u30b9\u306e\u53d6\u308c\u305f\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5916\u90e8\u30ad\u30fc\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff1a<\/strong> \u5e38\u306b\u5916\u90e8\u30ad\u30fc\u5217\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8a2d\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u9593\u306e\u7d50\u5408\u64cd\u4f5c\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/li>\n<li><strong>\u691c\u7d22\u5217\uff1a<\/strong> \u691c\u7d22\u3067\u983b\u7e41\u306b\u4f7f\u7528\u3055\u308c\u308b\u5217\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002<code>WHERE<\/code>, <code>ORDER BY<\/code>\u3001\u307e\u305f\u306f <code>GROUP BY<\/code>\u53e5\u306b\u4f7f\u7528\u3055\u308c\u308b\u5217\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\uff1a<\/strong> \u30af\u30a8\u30ea\u304c\u8907\u6570\u306e\u5217\u3067\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u308b\u5834\u5408\u306f\u3001\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5185\u306e\u5217\u306e\u9806\u5e8f\u306f\u91cd\u8981\u3067\u3042\u308a\u3001\u30af\u30a8\u30ea\u30d1\u30bf\u30fc\u30f3\u3068\u4e00\u81f4\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u904e\u5270\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5316\u3092\u907f\u3051\u308b\uff1a<\/strong> \u904e\u5270\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u30c7\u30a3\u30b9\u30af\u4f7f\u7528\u91cf\u3092\u5897\u3084\u3057\u3001<code>INSERT<\/code>, <code>UPDATE<\/code>\u3001\u304a\u3088\u3073 <code>DELETE<\/code> \u64cd\u4f5c\u3092\u9045\u304f\u3057\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u5fc5\u8981\u6027\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<h2>8. \u30aa\u30fc\u30c7\u30a3\u30c3\u30c8\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u542b\u3081\u308b \ud83d\udd52<\/h2>\n<p>\u30c8\u30ec\u30fc\u30b5\u30d3\u30ea\u30c6\u30a3\u306f\u30c7\u30d0\u30c3\u30b0\u304a\u3088\u3073\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u51e6\u7406\u3059\u308b\u3059\u3079\u3066\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u3001\u5909\u66f4\u3092\u8ffd\u8de1\u3059\u3079\u304d\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u4f5c\u6210\u65e5\u6642\uff1a<\/strong> \u306b <code>created_at<\/code>\u5217\u3092\u8ffd\u52a0\u3057\u3066\u3001\u30ec\u30b3\u30fc\u30c9\u304c\u6700\u521d\u306b\u633f\u5165\u3055\u308c\u305f\u65e5\u6642\u3092\u8a18\u9332\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u66f4\u65b0\u65e5\u6642\uff1a<\/strong> \u306b <code>updated_at<\/code>\u5217\u3092\u8ffd\u52a0\u3057\u3066\u3001\u6700\u7d42\u66f4\u65b0\u6642\u523b\u3092\u8a18\u9332\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\uff1a<\/strong> \u30cf\u30fc\u30c9\u524a\u9664\u3067\u306f\u306a\u304f\u3001\u6b21\u306e\u3088\u3046\u306a\u5217\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<code>deleted_at<\/code>\u5217\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30c7\u30fc\u30bf\u3092\u5fa9\u5143\u3067\u304d\u3001\u53c2\u7167\u6574\u5408\u6027\u3092\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u8ab0\u304c\u5909\u66f4\u3057\u305f\u304b\uff1a<\/strong> \u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u76e3\u67fb\u30ed\u30b0\u306e\u305f\u3081\u3001\u6b21\u306e\u3088\u3046\u306a\u5217\u3092\u542b\u3081\u3066\u304f\u3060\u3055\u3044\u3002<code>created_by<\/code> \u304a\u3088\u3073 <code>updated_by<\/code>\u5217\u3092\u8ffd\u52a0\u3057\u3066\u3001\u305d\u306e\u64cd\u4f5c\u306e\u8cac\u4efb\u8005\u3067\u3042\u308b\u30e6\u30fc\u30b6\u30fcID\u3092\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>9. \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u5bfe\u5fdc \ud83d\udd12<\/h2>\n<p>\u30c7\u30fc\u30bf\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306f\u3001\u5f8c\u304b\u3089\u8ffd\u52a0\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u30b9\u30ad\u30fc\u30de\u306b\u7d44\u307f\u8fbc\u3080\u3079\u304d\u3082\u306e\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>PII\u306e\u53d6\u308a\u6271\u3044\uff1a<\/strong>\u500b\u4eba\u3092\u7279\u5b9a\u3067\u304d\u308b\u60c5\u5831\uff08PII\uff09\u3092\u7279\u5b9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4f8b\u3068\u3057\u3066\u3001\u793e\u4f1a\u4fdd\u969c\u756a\u53f7\u3001\u30af\u30ec\u30b8\u30c3\u30c8\u30ab\u30fc\u30c9\u756a\u53f7\u3001\u5065\u5eb7\u8a18\u9332\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u60c5\u5831\u306f\u6697\u53f7\u5316\u307e\u305f\u306f\u30c8\u30fc\u30af\u30f3\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u5206\u985e\uff1a<\/strong>\u30b9\u30ad\u30fc\u30de\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5185\u3067\u3001\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u5217\u306b\u30e9\u30d9\u30eb\u3092\u4ed8\u3051\u308b\u3053\u3068\u3067\u3001\u958b\u767a\u8005\u304c\u3069\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u8ffd\u52a0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u5fc5\u8981\u304b\u3092\u628a\u63e1\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\uff1a<\/strong>\u7279\u5b9a\u306e\u6a29\u9650\u306f\u3057\u3070\u3057\u3070\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u307e\u305f\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30e6\u30fc\u30b6\u30fc\u30ec\u30d9\u30eb\u3067\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u304c\u3001\u30b9\u30ad\u30fc\u30de\u306f\u30c7\u30fc\u30bf\u306e\u6a5f\u5bc6\u6027\u3092\u53cd\u6620\u3059\u3079\u304d\u3067\u3059\uff08\u4f8b\uff1a\u516c\u958b\u30c7\u30fc\u30bf\u3068\u975e\u516c\u958b\u30c7\u30fc\u30bf\u7528\u306b\u5225\u3005\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u8a2d\u3051\u308b\u306a\u3069\uff09\u3002<\/li>\n<li><strong>\u4fdd\u6301\u30dd\u30ea\u30b7\u30fc\uff1a<\/strong>\u30b9\u30ad\u30fc\u30de\u304c\u30c7\u30fc\u30bf\u4fdd\u6301\u8981\u4ef6\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u90e8\u306e\u7ba1\u8f44\u533a\u57df\u3067\u306f\u3001\u4e00\u5b9a\u671f\u9593\u7d4c\u904e\u5f8c\u306b\u30c7\u30fc\u30bf\u524a\u9664\u304c\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>10. \u30b9\u30ad\u30fc\u30de\u306e\u6587\u66f8\u5316\u3068\u691c\u8a3c \ud83d\udcc4<\/h2>\n<p>\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306e\u306a\u3044\u30b9\u30ad\u30fc\u30de\u306f\u8ca0\u50b5\u3067\u3059\u3002\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u304c\u3042\u308b\u3053\u3068\u3067\u3001\u5c06\u6765\u306e\u4fdd\u5b88\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30c7\u30fc\u30bf\u8f9e\u66f8\uff1a<\/strong>\u3059\u3079\u3066\u306e\u30c6\u30fc\u30d6\u30eb\u3001\u30ab\u30e9\u30e0\u3001\u95a2\u4fc2\u3092\u8a18\u8ff0\u3057\u305f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u7dad\u6301\u3059\u308b\u3002\u5404\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u5bfe\u3057\u3066\u30d3\u30b8\u30cd\u30b9\u5b9a\u7fa9\u3092\u542b\u3081\u308b\u3002<\/li>\n<li><strong>\u30b3\u30e1\u30f3\u30c8\uff1a<\/strong>\u8907\u96d1\u306a\u8ad6\u7406\u3084\u7279\u5b9a\u306e\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3092\u8aac\u660e\u3059\u308b\u305f\u3081\u306b\u3001DDL\uff08\u30c7\u30fc\u30bf\u5b9a\u7fa9\u8a00\u8a9e\uff09\u30b9\u30af\u30ea\u30d7\u30c8\u5185\u306bSQL\u30b3\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li>\n<li><strong>\u8996\u899a\u7684\u30ec\u30d3\u30e5\u30fc\uff1a<\/strong>ERD\u3092\u8996\u899a\u7684\u306b\u751f\u6210\u3057\u3001\u5faa\u74b0\u53c2\u7167\u3001\u5b64\u7acb\u30c6\u30fc\u30d6\u30eb\u3001\u307e\u305f\u306f\u6b20\u843d\u3057\u3066\u3044\u308b\u95a2\u4fc2\u304c\u306a\u3044\u304b\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n<li><strong>\u540c\u50da\u30ec\u30d3\u30e5\u30fc\uff1a<\/strong>\u5225\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u307e\u305f\u306f\u30b7\u30cb\u30a2\u958b\u767a\u8005\u304c\u30e2\u30c7\u30eb\u3092\u30ec\u30d3\u30e5\u30fc\u3059\u308b\u3002\u65b0\u3057\u3044\u76ee\u3067\u898b\u308b\u3053\u3068\u3067\u3001\u521d\u671f\u8a2d\u8a08\u6642\u306b\u898b\u9003\u3055\u308c\u305f\u8ad6\u7406\u30a8\u30e9\u30fc\u3092\u767a\u898b\u3067\u304d\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/li>\n<\/ul>\n<h2>\u4e00\u822c\u7684\u306a\u30e2\u30c7\u30eb\u5316\u306e\u8aa4\u308a\u3068\u4fee\u6b63\u65b9\u6cd5 \ud83d\udee0\ufe0f<\/h2>\n<p>\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u306e\u78ba\u8a8d\u3060\u3051\u3067\u306f\u4e0d\u5341\u5206\u3067\u3059\u3002\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74\u306b\u3082\u6ce8\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u8aa4\u308a<\/th>\n<th>\u7d50\u679c<\/th>\n<th>\u4fee\u6b63<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5916\u90e8\u30ad\u30fc\u306e\u6b20\u843d<\/td>\n<td>\u5b64\u7acb\u30ec\u30b3\u30fc\u30c9\u3001\u30c7\u30fc\u30bf\u306e\u4e0d\u6574\u5408<\/td>\n<td>\u660e\u793a\u7684\u306a\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u3092\u8ffd\u52a0\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u5e83\u3044\u30c6\u30fc\u30d6\u30eb<\/td>\n<td>\u8aad\u307f\u3065\u3089\u304f\u3001\u30af\u30a8\u30ea\u304c\u9045\u3044<\/td>\n<td>\u95a2\u9023\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u306b\u5206\u5272\u3059\u308b\uff08\u6b63\u898f\u5316\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u6697\u9ed9\u306e\u95a2\u4fc2<\/td>\n<td>\u958b\u767a\u4e2d\u306e\u6df7\u4e71<\/td>\n<td>ERD\u306b\u660e\u78ba\u306a\u7dda\u3092\u5f15\u304f\u3001FK\u30ab\u30e9\u30e0\u3092\u8ffd\u52a0\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>NULL\u8a31\u5bb9\u6027\u306e\u554f\u984c<\/td>\n<td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5185\u306e\u8ad6\u7406\u30a8\u30e9\u30fc<\/td>\n<td>\u8a2d\u5b9a\uff1a<code>NOT NULL<\/code>\u30c7\u30fc\u30bf\u304c\u5fc5\u8981\u306a\u5834\u6240\u306b<\/td>\n<\/tr>\n<tr>\n<td>\u30cf\u30fc\u30c9\u30b3\u30fc\u30c9\u3055\u308c\u305fID<\/td>\n<td>\u79fb\u884c\u306e\u56f0\u96e3<\/td>\n<td>\u30cf\u30fc\u30c9\u30b3\u30fc\u30c9\u3055\u308c\u305fID\u306e\u4ee3\u308f\u308a\u306b\u5916\u90e8\u30ad\u30fc\u3092\u4f7f\u7528\u3059\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306b\u3064\u3044\u3066\u306e\u6700\u7d42\u7684\u306a\u8003\u5bdf 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