{"id":2121,"date":"2026-04-11T10:44:51","date_gmt":"2026-04-11T10:44:51","guid":{"rendered":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/"},"modified":"2026-04-11T10:44:51","modified_gmt":"2026-04-11T10:44:51","slug":"robust-entity-relationship-diagram-components","status":"publish","type":"post","link":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/","title":{"rendered":"\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u5206\u89e3\u3092\u89e3\u660e\u3059\u308b\uff1a\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3092\u672c\u5f53\u306b\u652f\u3048\u308b\u3082\u306e\u306f\u4f55\u304b"},"content":{"rendered":"

\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8a2d\u8a08\u306f\u3001\u5efa\u7269\u306e\u5efa\u7bc9\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u57fa\u76e4\u304c\u5f31\u3051\u308c\u3070\u3001\u305d\u306e\u4e0a\u306b\u69cb\u7bc9\u3055\u308c\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u91cd\u307f\u3092\u652f\u3048\u308b\u69cb\u9020\u306f\u6210\u308a\u7acb\u3061\u307e\u305b\u3093\u3002\u3053\u306e\u57fa\u76e4\u306e\u6838\u5fc3\u306b\u3042\u308b\u306e\u304c\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3067\u3059\u3002\u3053\u306e\u8996\u899a\u7684\u306a\u8a2d\u8a08\u56f3\u306f\u3001\u30c7\u30fc\u30bf\u304c\u3069\u306e\u3088\u3046\u306b\u63a5\u7d9a\u3057\u3001\u76f8\u4e92\u4f5c\u7528\u3057\u3001\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u5168\u4f53\u3067\u4e00\u8cab\u6027\u3092\u4fdd\u3064\u304b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u9069\u5207\u306b\u69cb\u7bc9\u3055\u308c\u305fERD\u306f\u3001\u30c7\u30fc\u30bf\u306e\u91cd\u8907\u3092\u9632\u304e\u3001\u6574\u5408\u6027\u3092\u78ba\u4fdd\u3057\u3001\u958b\u767a\u8005\u3068\u95a2\u4fc2\u8005\u53cc\u65b9\u306b\u3068\u3063\u3066\u8907\u96d1\u306a\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u660e\u78ba\u306b\u3057\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u30ac\u30a4\u30c9\u3067\u306f\u3001\u5805\u7262\u306aERD\u306e\u69cb\u9020\u3092\u6df1\u304f\u6398\u308a\u4e0b\u3052\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u5358\u306a\u308b\u57fa\u672c\u7684\u306a\u56f3\u5f62\u3084\u7dda\u3092\u8d85\u3048\u3066\u3001\u4fe1\u983c\u3067\u304d\u308b\u30b9\u30ad\u30fc\u30de\u3092\u69cb\u7bc9\u3059\u308b\u5177\u4f53\u7684\u306a\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u63a2\u6c42\u3057\u307e\u3059\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u6b63\u78ba\u306a\u5b9a\u7fa9\u304b\u3089\u3001\u6fc3\u5bc6\u306a\u57fa\u6570\u306e\u30eb\u30fc\u30eb\u306b\u81f3\u308b\u307e\u3067\u3001\u3059\u3079\u3066\u306e\u8981\u7d20\u304c\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u5727\u529b\u306b\u8010\u3048\u306a\u304c\u3089\u62e1\u5f35\u53ef\u80fd\u3067\u9069\u5fdc\u529b\u306e\u3042\u308b\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002<\/p>\n

\n
\"Child's<\/figure>\n<\/div>\n

\u4e2d\u6838\u3068\u306a\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u7406\u89e3 \ud83e\uddf1<\/h2>\n

\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\u306f\u5358\u306a\u308b\u56f3\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u306f\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u8ad6\u7406\u7684\u306a\u8868\u73fe\u3067\u3059\u3002\u52b9\u679c\u7684\u306b\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u305d\u306e\u57fa\u672c\u7684\u306a\u69cb\u6210\u8981\u7d20\u3092\u7279\u5b9a\u3057\u5b9a\u7fa9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5404\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3001\u3088\u308a\u5e83\u7bc4\u306a\u30b9\u30ad\u30fc\u30de\u306e\u4e2d\u3067\u7279\u5b9a\u306e\u6a5f\u80fd\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n

    \n
  • \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff1a<\/strong>\u3053\u308c\u3089\u306f\u3001\u30c7\u30fc\u30bf\u304c\u683c\u7d0d\u3055\u308c\u308b\u73fe\u5b9f\u4e16\u754c\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3084\u6982\u5ff5\u3092\u8868\u3057\u307e\u3059\u3002\u5c0f\u58f2\u308a\u306e\u6587\u8108\u3067\u306f\u3001\u9867\u5ba2\u3001\u6ce8\u6587\u3001\u5546\u54c1\u306a\u3069\u304c\u4f8b\u3068\u3057\u3066\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u901a\u5e38\u3001\u9577\u65b9\u5f62\u3067\u8868\u73fe\u3055\u308c\u307e\u3059\u3002<\/li>\n
  • \u5c5e\u6027\uff1a<\/strong>\u3053\u308c\u3089\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u5177\u4f53\u7684\u306a\u30d7\u30ed\u30d1\u30c6\u30a3\u3084\u7279\u5fb4\u3067\u3059\u3002\u9867\u5ba2\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u5834\u5408\u3001\u5c5e\u6027\u306b\u306f\u540d\u524d\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u3001\u96fb\u8a71\u756a\u53f7\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u5c5e\u6027\u306f\u901a\u5e38\u3001\u6955\u5186\u5f62\u3067\u793a\u3055\u308c\u308b\u304b\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u30dc\u30c3\u30af\u30b9\u5185\u306b\u30ea\u30b9\u30c8\u5f62\u5f0f\u3067\u8a18\u8f09\u3055\u308c\u307e\u3059\u3002<\/li>\n
  • \u95a2\u4fc2\uff1a<\/strong>\u3053\u308c\u3089\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u540c\u58eb\u304c\u3069\u306e\u3088\u3046\u306b\u76f8\u4e92\u4f5c\u7528\u3059\u308b\u304b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u9867\u5ba2\u304c\u6ce8\u6587\u3092\u884c\u3046\u3068\u3044\u3046\u76f8\u4e92\u4f5c\u7528\u304c\u95a2\u4fc2\u3067\u3059\u3002\u95a2\u4fc2\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7d50\u3076\u7dda\u3084\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\u3067\u8868\u73fe\u3055\u308c\u307e\u3059\u3002<\/li>\n
  • \u30ad\u30fc\uff1a<\/strong>\u30ec\u30b3\u30fc\u30c9\u3092\u533a\u5225\u3059\u308b\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3067\u3059\u3002\u4e3b\u30ad\u30fc\u306f\u4e00\u610f\u6027\u3092\u4fdd\u8a3c\u3057\u3001\u5916\u90e8\u30ad\u30fc\u306f\u30c6\u30fc\u30d6\u30eb\u9593\u306e\u30ea\u30f3\u30af\u3092\u78ba\u7acb\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n

    \u3053\u308c\u3089\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u304c\u6b63\u3057\u304f\u6574\u3048\u3089\u308c\u308c\u3070\u3001\u7d50\u679c\u3068\u3057\u3066\u5f97\u3089\u308c\u308b\u56f3\u306f\u60c5\u5831\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u660e\u78ba\u306a\u5730\u56f3\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u3044\u305a\u308c\u304b\u306e\u9818\u57df\u306b\u66d6\u6627\u3055\u304c\u3042\u308b\u3068\u3001\u5b9f\u88c5\u6bb5\u968e\u3067\u91cd\u5927\u306a\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

    \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7cbe\u5bc6\u306b\u5b9a\u7fa9\u3059\u308b \ud83d\udd0d<\/h2>\n

    \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a00\u8a9e\u306b\u304a\u3051\u308b\u540d\u8a5e\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u3059\u3079\u3066\u306e\u540d\u8a5e\u304c\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u3057\u3066\u3075\u3055\u308f\u3057\u3044\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5805\u7262\u306a\u8a2d\u8a08\u306b\u306f\u3001\u4f55\u304c\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3067\u4f55\u304c\u5c5e\u6027\u306a\u306e\u304b\u3092\u53b3\u5bc6\u306b\u691c\u8a0e\u3059\u308b\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n

    \u9069\u5207\u306a\u30b9\u30b3\u30fc\u30d7\u306e\u7279\u5b9a<\/h3>\n

    \u3042\u308b\u3082\u306e\u304c\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304b\u3069\u3046\u304b\u3092\u6c7a\u5b9a\u3059\u308b\u3053\u3068\u306f\u3001\u3057\u3070\u3057\u3070\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3084\u30c7\u30fc\u30bf\u8981\u4ef6\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u3042\u308b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304c\u3001\u4ed6\u306e\u3082\u306e\u3068\u306f\u7570\u306a\u308b\u72ec\u81ea\u306e\u5c5e\u6027\u30bb\u30c3\u30c8\u3068\u95a2\u4fc2\u3092\u6301\u3064\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001\u305d\u308c\u306f\u72ec\u7acb\u3057\u305f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u3057\u3066\u5b58\u5728\u3059\u3079\u304d\u3067\u3059\u3002\u4ee5\u4e0b\u306e\u57fa\u6e96\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n

      \n
    • \u72ec\u7acb\u6027\uff1a<\/strong>\u305d\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f\u3001\u4ed6\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u6587\u8108\u306a\u3057\u306b\u5b58\u5728\u3057\u307e\u3059\u304b\uff1f<\/li>\n
    • \u5c5e\u6027\uff1a<\/strong>\u683c\u7d0d\u3059\u3079\u304d\u8907\u6570\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u304b\uff1f<\/li>\n
    • \u95a2\u4fc2\uff1a<\/strong>\u8ffd\u8de1\u304c\u5fc5\u8981\u306a\u5f62\u3067\u4ed6\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u95a2\u9023\u3057\u3066\u3044\u307e\u3059\u304b\uff1f<\/li>\n<\/ul>\n

      \u4f8b\u3048\u3070\u3001\u56f3\u66f8\u9928\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u66f8\u7c4d\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3067\u3059\u3002\u30bf\u30a4\u30c8\u30eb\u3001ISBN\u3001\u8457\u8005\u3092\u6301\u3061\u307e\u3059\u3002ISBN\u306f\u5c5e\u6027\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u56f3\u66f8\u9928\u304c\u7248\u306e\u5c65\u6b74\u3092\u500b\u5225\u306b\u8ffd\u8de1\u3059\u308b\u5834\u5408\u3001\u7248\uff08Edition\uff09\u306f\u51fa\u7248\u5e74\u3084\u88fd\u672c\u30bf\u30a4\u30d7\u3068\u3044\u3063\u305f\u7279\u5b9a\u306e\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306b\u72ec\u81ea\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

      \u547d\u540d\u898f\u5247<\/h3>\n

      \u547d\u540d\u306e\u4e00\u8cab\u6027\u306f\u3001\u9577\u671f\u7684\u306a\u4fdd\u5b88\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u6df7\u4e71\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u306f\u5358\u6570\u5f62\u306e\u540d\u8a5e\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4f8b\u3048\u3070\u3001\u300c\u9867\u5ba2<\/em>\u300d\u3067\u306f\u306a\u304f\u300c\u9867\u5ba2\u305f\u3061\u300d\u300d\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/em>\u3053\u308c\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u306f\u5358\u4e00\u306e\u7a2e\u985e\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u591a\u6570\u4fdd\u6301\u3059\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u8907\u6570\u306e\u7a2e\u985e\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u4fdd\u6301\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u3044\u3068\u3044\u3046\u8ad6\u7406\u7684\u306a\u671f\u5f85\u3068\u4e00\u81f4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

        \n
      • \u660e\u78ba\u3055:<\/strong>\u540d\u524d\u306f\u81ea\u5df1\u8aac\u660e\u7684\u3067\u3042\u308b\u3079\u304d\u3067\u3059\u3002<\/li>\n
      • \u4e00\u8cab\u6027:<\/strong>\u5358\u6570\u5f62\u3068\u8907\u6570\u5f62\u3092\u6df7\u5728\u3055\u305b\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/li>\n
      • \u4e00\u610f\u6027:<\/strong>2 \u3064\u4ee5\u4e0a\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u540c\u3058\u540d\u524d\u3092\u5171\u6709\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n

        \u5c5e\u6027\u3068\u30c7\u30fc\u30bf\u6574\u5408\u6027 \ud83d\udcdd<\/h2>\n

        \u5c5e\u6027\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u5185\u306e\u5185\u5bb9\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u30c7\u30fc\u30bf\u306e\u7c92\u5ea6\u3092\u6c7a\u5b9a\u3057\u3001\u30af\u30a8\u30ea\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u5805\u7262\u306a ERD \u306f\u3001\u30b9\u30ad\u30fc\u30de\u304c\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf\u64cd\u4f5c\u3092\u30b5\u30dd\u30fc\u30c8\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u7570\u306a\u308b\u7a2e\u985e\u306e\u5c5e\u6027\u3092\u533a\u5225\u3057\u307e\u3059\u3002<\/p>\n

        \u4e3b\u30ad\u30fc<\/h3>\n

        \u4e3b\u30ad\u30fc\u306f\u30ec\u30b3\u30fc\u30c9\u306e\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3067\u3059\u3002\u3053\u308c\u306f\u4e00\u610f\u3067\u3042\u308a\u3001NULL \u3067\u3042\u3063\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u9069\u5207\u306a\u4e3b\u30ad\u30fc\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u306f\u6226\u7565\u7684\u306a\u5224\u65ad\u3067\u3059\u3002<\/p>\n

          \n
        • \u4ee3\u7406\u30ad\u30fc:<\/strong>\u30d3\u30b8\u30cd\u30b9\u4e0a\u306e\u610f\u5473\u3092\u6301\u305f\u306a\u3044\u30b7\u30b9\u30c6\u30e0\u751f\u6210\u5024\uff08\u6574\u6570\u306a\u3069\uff09\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u5b89\u5b9a\u3057\u3066\u304a\u308a\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u7d50\u5408\u306b\u52b9\u7387\u7684\u3067\u3059\u3002<\/li>\n
        • \u81ea\u7136\u30ad\u30fc:<\/strong>\u73fe\u5b9f\u4e16\u754c\u306e\u8b58\u5225\u5b50\uff08\u793e\u4f1a\u4fdd\u969c\u756a\u53f7\u3084\u96fb\u5b50\u30e1\u30fc\u30eb\u306a\u3069\uff09\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u610f\u5473\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u5909\u66f4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u8907\u96d1\u306b\u306a\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n

          \u5916\u90e8\u30ad\u30fc<\/h3>\n

          \u5916\u90e8\u30ad\u30fc\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u30ea\u30f3\u30af\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u5225\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u4e3b\u30ad\u30fc\u3092\u53c2\u7167\u3057\u307e\u3059\u3002\u3053\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u306f\u53c2\u7167\u6574\u5408\u6027\u3092\u5f37\u5236\u3057\u3001\u53c2\u7167\u3055\u308c\u308b\u30ec\u30b3\u30fc\u30c9\u304c\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u3001\u95a2\u4fc2\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n

            \n
          • \u30ab\u30b9\u30b1\u30fc\u30c9\u30eb\u30fc\u30eb:<\/strong>\u89aa\u30ec\u30b3\u30fc\u30c9\u304c\u524a\u9664\u3055\u308c\u305f\u3068\u304d\u306b\u4f55\u304c\u8d77\u3053\u308b\u304b\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u95a2\u9023\u30ec\u30b3\u30fc\u30c9\u306f\u524a\u9664\u3001\u66f4\u65b0\u3001\u307e\u305f\u306f NULL \u306b\u3059\u308b\u3079\u304d\u3067\u3057\u3087\u3046\u304b\uff1f<\/li>\n
          • NULL \u8a31\u5bb9\u6027:<\/strong>\u95a2\u4fc2\u304c\u5fc5\u9808\u304b\u3069\u3046\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u6ce8\u6587\u306b\u306f\u5fc5\u305a\u9867\u5ba2\u304c\u5fc5\u8981\u3067\u3042\u308b\u5834\u5408\u3001\u5916\u90e8\u30ad\u30fc\u306f NULL \u306b\u306a\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<\/ul>\n

            \u6d3e\u751f\u5c5e\u6027<\/h3>\n

            \u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u30c7\u30fc\u30bf\u306f\u4ed6\u306e\u5c5e\u6027\u304b\u3089\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u5e74\u9f62\u306f\u751f\u5e74\u6708\u65e5\u304b\u3089\u6d3e\u751f\u3067\u304d\u307e\u3059\u3002\u6d3e\u751f\u5c5e\u6027\u3092\u4fdd\u5b58\u3059\u308b\u3068\u8a08\u7b97\u6642\u9593\u3092\u7bc0\u7d04\u3067\u304d\u307e\u3059\u304c\u3001\u30bd\u30fc\u30b9\u304c\u5909\u66f4\u3055\u308c\u305f\u5834\u5408\u306b\u30c7\u30fc\u30bf\u306e\u4e0d\u6574\u5408\u306e\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5024\u3092\u4fdd\u5b58\u3059\u308b\u3053\u3068\u3092\u6c7a\u5b9a\u3059\u308b\u969b\u306b\u306f\u3001\u614e\u91cd\u306a\u691c\u8a0e\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n

            \u95a2\u4fc2\u3068\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3 \ud83d\udd17<\/h2>\n

            \u95a2\u4fc2\u306f\u56f3\u306e\u7d50\u5408\u7d44\u7e54\u3067\u3059\u3002\u3053\u308c\u3089\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u7d50\u3073\u3064\u3051\u308b\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002\u95a2\u4fc2\u3067\u6700\u3082\u91cd\u8981\u306a\u5074\u9762\u306f\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u3067\u3042\u308a\u3001\u3053\u308c\u306f\u95a2\u4fc2\u306b\u95a2\u4e0e\u3059\u308b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u6570\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n

            \u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u306f\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u5236\u7d04\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u8aa4\u3063\u305f\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u306f\u3001\u5b64\u7acb\u3057\u305f\u30ec\u30b3\u30fc\u30c9\u3084\u4e0d\u53ef\u80fd\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u7406\u89e3\u3059\u3079\u304d\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u306e\u4e3b\u8981\u306a\u30bf\u30a4\u30d7\u306f 3 \u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n\n\n\n\n
            \u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u306e\u7a2e\u985e<\/th>\n\u8aac\u660e<\/th>\n\u4f8b<\/th>\n<\/tr>\n<\/thead>\n
            \u4e00\u3064\u5bfe\u4e00\u3064 (1:1)<\/td>\n\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3 A \u306e\u5358\u4e00\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3 B \u306e\u5358\u4e00\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u307e\u3059\u3002<\/td>\n\u4eba\u7269\u3068\u30d1\u30b9\u30dd\u30fc\u30c8\u3002<\/td>\n<\/tr>\n
            1\u5bfe\u591a (1:M)<\/td>\n\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3 A \u306e\u5358\u4e00\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3 B \u306e\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u307e\u3059\u3002<\/td>\n\u90e8\u7f72\u3068\u5f93\u696d\u54e1\u3002<\/td>\n<\/tr>\n
            \u591a\u5bfe\u591a (M:N)<\/td>\n\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3 A \u306e\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306f\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3 B \u306e\u8907\u6570\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u307e\u3059\u3002<\/td>\n\u5b66\u751f\u3068\u30b3\u30fc\u30b9\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

            \u591a\u5bfe\u591a\u306e\u5b9f\u88c5<\/h3>\n

            \u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7406\u8ad6\u306b\u304a\u3044\u3066\u3001\u591a\u5bfe\u591a\u306e\u95a2\u4fc2\u306f\u95a2\u9023\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\uff08\u30b8\u30e7\u30a4\u30f3\u30c8\u30c6\u30fc\u30d6\u30eb\u307e\u305f\u306f\u30d6\u30ea\u30c3\u30b8\u30c6\u30fc\u30d6\u30eb\u3068\u547c\u3070\u308c\u308b\u3053\u3068\u304c\u591a\u3044\uff09\u3092\u4ecb\u3057\u3066\u5b9f\u88c5\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u4e2d\u9593\u30c6\u30fc\u30d6\u30eb\u306f\u3001\u76f4\u63a5\u95a2\u4fc2\u30922\u3064\u306e1\u5bfe\u591a\u306e\u95a2\u4fc2\u306b\u5206\u89e3\u3057\u307e\u3059\u3002<\/p>\n

              \n
            • \u69cb\u9020\uff1a<\/strong>\u30b8\u30e7\u30a4\u30f3\u30c8\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u3001\u95a2\u9023\u3059\u308b\u4e21\u65b9\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u4e3b\u30ad\u30fc\u304c\u5916\u90e8\u30ad\u30fc\u3068\u3057\u3066\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n
            • \u5c5e\u6027\uff1a<\/strong>\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u3001\u95a2\u4fc2\u81ea\u4f53\u306b\u95a2\u3059\u308b\u7279\u5b9a\u306e\u5c5e\u6027\uff08\u4f8b\uff1a\u5b66\u751f\u304c\u30b3\u30fc\u30b9\u306b\u767b\u9332\u3057\u305f\u65e5\u4ed8\uff09\u3082\u683c\u7d0d\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n

              \u8868\u8a18\u30b9\u30bf\u30a4\u30eb\u3068\u8996\u899a\u7684\u57fa\u6e96 \ud83d\udcd0<\/h2>\n

              \u8ad6\u7406\u306f\u540c\u3058\u3067\u3059\u304c\u3001\u8996\u899a\u7684\u306a\u8868\u73fe\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u696d\u754c\u5168\u4f53\u3067\u540c\u3058\u69cb\u9020\u7684\u60c5\u5831\u3092\u4f1d\u3048\u308b\u305f\u3081\u306b\u7570\u306a\u308b\u8868\u8a18\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u56f3\u304c\u30c1\u30fc\u30e0\u306e\u3059\u3079\u3066\u306e\u30e1\u30f3\u30d0\u30fc\u306b\u8aad\u307f\u53d6\u308a\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

              \u30ab\u30e9\u30b9\u306e\u8db3\u8868\u8a18<\/h3>\n

              \u3053\u306e\u30b9\u30bf\u30a4\u30eb\u306f\u3001\u7dda\u306e\u7aef\u306b\u8a18\u53f7\u3092\u4f7f\u7528\u3057\u3066\u57fa\u6570\u3092\u8868\u3057\u307e\u3059\u3002\u5358\u4e00\u306e\u7dda\u306f1\u3092\u3001\u30ab\u30e9\u30b9\u306e\u8db3\uff083\u672c\u306e\u679d\u5206\u304b\u308c\u3057\u305f\u7dda\uff09\u306f\u591a\u6570\u3092\u8868\u3057\u307e\u3059\u3002\u305d\u306e\u660e\u78ba\u3055\u304b\u3089\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

              \u30c1\u30a7\u30f3\u8868\u8a18<\/h3>\n

              \u3053\u306e\u53e4\u3044\u30b9\u30bf\u30a4\u30eb\u306f\u3001\u95a2\u4fc2\u3092\u8868\u3059\u305f\u3081\u306b\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\u3092\u3001\u5c5e\u6027\u3092\u8868\u3059\u305f\u3081\u306b\u6955\u5186\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u8996\u899a\u7684\u306b\u969b\u7acb\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u73fe\u4ee3\u306e\u7269\u7406\u30e2\u30c7\u30ea\u30f3\u30b0\u3067\u306f\u3042\u307e\u308a\u4e00\u822c\u7684\u3067\u306f\u306a\u304f\u3001\u6982\u5ff5\u7684\u306a\u56f3\u306b\u306f\u4f9d\u7136\u3068\u3057\u3066\u6709\u7528\u3067\u3059\u3002<\/p>\n

              UML \u30af\u30e9\u30b9\u56f3<\/h3>\n

              \u7d71\u4e00\u30e2\u30c7\u30ea\u30f3\u30b0\u8a00\u8a9e\uff08UML\uff09\u306e\u56f3\u306f\u3001\u3088\u308a\u4e00\u822c\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u53ef\u8996\u6027\u4fee\u98fe\u5b50\u3084\u30e1\u30bd\u30c3\u30c9\u30b7\u30b0\u30cd\u30c1\u30e3\u304c\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u8a2d\u8a08\u306b\u306f\u6709\u7528\u3067\u3059\u304c\u3001\u7d14\u7c8b\u306a\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u306f\u8907\u96d1\u3055\u3092\u52a0\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

              \u6a19\u6e96\u306e\u9078\u629e<\/h3>\n

              \u4e00\u8cab\u6027\u306f\u7279\u5b9a\u306e\u9078\u629e\u3088\u308a\u3082\u91cd\u8981\u3067\u3059\u3002\u30c1\u30fc\u30e0\u304c\u7406\u89e3\u3067\u304d\u308b\u8868\u8a18\u3092\u9078\u629e\u3057\u3001\u305d\u308c\u306b\u5f93\u3063\u3066\u304f\u3060\u3055\u3044\u30021\u3064\u306e\u56f3\u5185\u3067\u30b9\u30bf\u30a4\u30eb\u3092\u6df7\u305c\u308b\u3068\u3001\u5b9f\u88c5\u6642\u306b\u6df7\u4e71\u3084\u30a8\u30e9\u30fc\u306e\u539f\u56e0\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

              \u6b63\u898f\u5316\u3068\u30c7\u30fc\u30bf\u6574\u5408\u6027 \ud83d\udee1\ufe0f<\/h2>\n

              \u5805\u7262\u306aERD\u306f\u6b63\u898f\u5316\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u5197\u9577\u6027\u3092\u6e1b\u3089\u3057\u6574\u5408\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u30c7\u30fc\u30bf\u3092\u6574\u7406\u3057\u307e\u3059\u3002ERD\u306f\u8ad6\u7406\u30e2\u30c7\u30eb\u3067\u3059\u304c\u3001\u6b63\u898f\u5316\u30eb\u30fc\u30eb\u3092\u5ff5\u982d\u306b\u7f6e\u3044\u3066\u8a2d\u8a08\u3055\u308c\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n

                \n
              • \u7b2c\u4e00\u6b63\u898f\u5f62 (1NF)\uff1a<\/strong>\u539f\u5b50\u5024\u3092\u78ba\u4fdd\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5404\u5217\u306f\u5358\u4e00\u306e\u5024\u3092\u542b\u307f\u3001\u30ea\u30b9\u30c8\u3092\u542b\u3093\u3067\u306f\u3044\u3051\u307e\u305b\u3093\u3002<\/li>\n
              • \u7b2c\u4e8c\u6b63\u898f\u5f62 (2NF)\uff1a<\/strong>\u90e8\u5206\u4f9d\u5b58\u3092\u6392\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3059\u3079\u3066\u306e\u975e\u30ad\u30fc\u5c5e\u6027\u306f\u3001\u4e3b\u30ad\u30fc\u5168\u4f53\u306b\u4f9d\u5b58\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n
              • \u7b2c\u4e09\u6b63\u898f\u5f62\uff083NF\uff09\uff1a<\/strong>\u63a8\u79fb\u7684\u4f9d\u5b58\u95a2\u4fc2\u3092\u6392\u9664\u3059\u308b\u3002\u975e\u30ad\u30fc\u5c5e\u6027\u306f\u3001\u4ed6\u306e\u975e\u30ad\u30fc\u5c5e\u6027\u306b\u4f9d\u5b58\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002<\/li>\n<\/ul>\n

                \u8a2d\u8a08\u6bb5\u968e\u3067\u3053\u308c\u3089\u306e\u539f\u5247\u306b\u9055\u53cd\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u66f4\u65b0\u6642\u306b\u7570\u5e38\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4f4f\u6240\u304c\u9867\u5ba2\u30c6\u30fc\u30d6\u30eb\u306b\u683c\u7d0d\u3055\u308c\u3066\u304a\u308a\u3001\u9867\u5ba2\u304c\u8ee2\u5c45\u3057\u305f\u5834\u5408\u3001\u9069\u5207\u306b\u6b63\u898f\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u3068\u3001\u305d\u306e\u4f4f\u6240\u30921\u304b\u6240\u66f4\u65b0\u3059\u308b\u3060\u3051\u3067\u3001\u4ed6\u306e\u5834\u6240\u306b\u53e4\u3044\u30c7\u30fc\u30bf\u304c\u6b8b\u3063\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

                \u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74 \u26a0\ufe0f<\/h2>\n

                \u7d4c\u9a13\u8c4a\u5bcc\u306a\u8a2d\u8a08\u8005\u3067\u3082\u30df\u30b9\u3092\u72af\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u30a8\u30e9\u30fc\u3092\u8a8d\u8b58\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30fc\u30c9\u5316\u3059\u308b\u524d\u306b\u30e2\u30c7\u30eb\u3092\u6d17\u7df4\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

                \u904e\u5270\u8a2d\u8a08<\/h3>\n

                \u3042\u3089\u3086\u308b\u5c06\u6765\u306e\u30b7\u30ca\u30ea\u30aa\u3092\u60f3\u5b9a\u3057\u3066\u8a2d\u8a08\u3059\u308b\u3068\u3001\u30b9\u30ad\u30fc\u30de\u304c\u904e\u5ea6\u306b\u8907\u96d1\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u73fe\u5728\u306e\u8981\u4ef6\u306b\u7126\u70b9\u3092\u5f53\u3066\u3064\u3064\u3001\u62e1\u5f35\u306e\u4f59\u5730\u3092\u6b8b\u3057\u307e\u3057\u3087\u3046\u3002\u4eee\u60f3\u7684\u306a\u6a5f\u80fd\u306e\u305f\u3081\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u8ffd\u52a0\u3057\u3066\u3082\u3001\u5373\u5ea7\u306e\u4fa1\u5024\u306f\u306a\u304f\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u304c\u5897\u3048\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n

                \u66d6\u6627\u306a\u95a2\u4fc2<\/h3>\n

                \u56f3\u306e\u3059\u3079\u3066\u306e\u7dda\u306b\u660e\u78ba\u306a\u610f\u5473\u304c\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u30022\u3064\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u9593\u306e\u7dda\u306f\u3001\u5b9a\u7fa9\u3055\u308c\u305f\u65b9\u5411\u3068\u30bf\u30a4\u30d7\u3092\u6301\u3064\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u95a2\u4fc2\u304c\u8907\u6570\u306e\u65b9\u6cd5\u3067\u89e3\u91c8\u3067\u304d\u308b\u5834\u5408\u3001\u8ad6\u7406\u306b\u6b20\u9665\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

                \u5236\u7d04\u306e\u7121\u8996<\/h3>\n

                \u4e00\u610f\u5024\u3084 NOT NULL \u8981\u4ef6\u306a\u3069\u306e\u5236\u7d04\u306f\u660e\u793a\u7684\u306b\u5b9a\u7fa9\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u3067\u306e\u307f\u5f37\u5236\u3055\u308c\u308b\u5834\u5408\u3001\u30c7\u30fc\u30bf\u6574\u5408\u6027\u304c\u5371\u967a\u306b\u3055\u3089\u3055\u308c\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u3053\u308c\u3089\u306e\u30eb\u30fc\u30eb\u3092\u5f37\u5236\u3059\u3079\u304d\u3067\u3059\u3002<\/p>\n

                \u5c5e\u6027\u306e\u6b20\u843d<\/h3>\n

                \u76ee\u7acb\u305f\u306a\u3044\u5c5e\u6027\u3092\u898b\u843d\u3068\u3057\u304c\u3061\u3067\u3059\u3002\u4f5c\u6210\u65e5\u6642\u3001\u66f4\u65b0\u65e5\u6642\u3001\u524a\u9664\u65e5\u6642\u306a\u3069\u306e\u76e3\u67fb\u7528\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u8003\u616e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306f\u5909\u66f4\u306e\u8ffd\u8de1\u3068\u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u306e\u7ba1\u7406\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n

                \u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3068\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406 \ud83d\udd04<\/h2>\n

                ERD\u306f\u4e00\u5ea6\u304d\u308a\u306e\u4f5c\u696d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30d3\u30b8\u30cd\u30b9\u8981\u4ef6\u304c\u9032\u5316\u3059\u308b\u306b\u3064\u308c\u3001\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3082\u9069\u5fdc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5805\u7262\u306a\u56f3\u306b\u306f\u3001\u5909\u66f4\u3092\u8ffd\u8de1\u3059\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

                  \n
                • \u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\uff1a<\/strong>\u56f3\u306e\u6539\u8a02\u5c65\u6b74\u3092\u7dad\u6301\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7279\u5b9a\u306e\u6c7a\u5b9a\u304c\u306a\u305c\u884c\u308f\u308c\u305f\u304b\u3092\u7406\u89e3\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n
                • \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\uff1a<\/strong>\u8996\u899a\u7684\u306a\u69cb\u9020\u304b\u3089\u306f\u660e\u3089\u304b\u3067\u306a\u3044\u8907\u96d1\u306a\u95a2\u4fc2\u3084\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3092\u8aac\u660e\u3059\u308b\u305f\u3081\u306b\u3001\u30b3\u30e1\u30f3\u30c8\u307e\u305f\u306f\u30e1\u30bf\u30c7\u30fc\u30bf\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n
                • \u30ec\u30d3\u30e5\u30fc\u30b5\u30a4\u30af\u30eb\uff1a<\/strong>\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u3068\u5b9a\u671f\u7684\u306b\u30b9\u30ad\u30fc\u30de\u306e\u30ec\u30d3\u30e5\u30fc\u3092\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3057\u3001\u305d\u308c\u304c\u4f9d\u7136\u3068\u3057\u3066\u30d3\u30b8\u30cd\u30b9\u76ee\u6a19\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n

                  \u5805\u7262\u306aERD\u306e\u305f\u3081\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8 \u2705<\/h2>\n

                  \u8a2d\u8a08\u3092\u78ba\u5b9a\u3059\u308b\u524d\u306b\u3001\u3053\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u5b9f\u884c\u3057\u3066\u5b8c\u5168\u6027\u3068\u6b63\u78ba\u6027\u3092\u78ba\u4fdd\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
                  \u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u9805\u76ee<\/th>\n\u30b9\u30c6\u30fc\u30bf\u30b9<\/th>\n<\/tr>\n<\/thead>\n
                  \u3059\u3079\u3066\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u4e00\u8cab\u3057\u3066\uff08\u5358\u6570\u5f62\u3067\uff09\u547d\u540d\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/td>\n\u2610<\/td>\n<\/tr>\n
                  \u3059\u3079\u3066\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5bfe\u3057\u3066\u4e3b\u30ad\u30fc\u304c\u660e\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/td>\n\u2610<\/td>\n<\/tr>\n
                  \u3059\u3079\u3066\u306e\u5916\u90e8\u30ad\u30fc\u304c\u6709\u52b9\u306a\u89aa\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u53c2\u7167\u3057\u3066\u3044\u307e\u3059\u304b\uff1f<\/td>\n\u2610<\/td>\n<\/tr>\n
                  \u3059\u3079\u3066\u306e\u95a2\u4fc2\u306b\u5bfe\u3057\u3066\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u306f\u660e\u793a\u7684\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/td>\n\u2610<\/td>\n<\/tr>\n
                  \u591a\u5bfe\u591a\u306e\u95a2\u4fc2\u306f\u30b8\u30e7\u30a4\u30f3\u30c6\u30fc\u30d6\u30eb\u306b\u5909\u63db\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/td>\n\u2610<\/td>\n<\/tr>\n
                  \u5fc5\u8981\u306a\u7b87\u6240\u306b\u76e3\u67fb\u7528\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u8ffd\u52a0\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/td>\n\u2610<\/td>\n<\/tr>\n
                  \u3053\u306e\u56f3\u306b\u306f\u5faa\u74b0\u4f9d\u5b58\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/td>\n\u2610<\/td>\n<\/tr>\n
                  \u3059\u3079\u3066\u306e\u5c5e\u6027\u3067\u547d\u540d\u898f\u5247\u306f\u7d71\u4e00\u3055\u308c\u3066\u3044\u307e\u3059\u304b\uff1f<\/td>\n\u2610<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                  \u30c7\u30fc\u30bf\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u95a2\u3059\u308b\u6700\u7d42\u7684\u306a\u8003\u5bdf \ud83c\udfc1<\/h2>\n

                  \u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u56f3\uff08ERD\uff09\u3092\u69cb\u7bc9\u3059\u308b\u306b\u306f\u3001\u7d30\u90e8\u3078\u306e\u6ce8\u610f\u3068\u30c7\u30fc\u30bf\u95a2\u4fc2\u306b\u5bfe\u3059\u308b\u6df1\u3044\u7406\u89e3\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u308c\u306f\u7406\u8ad6\u7684\u306a\u7d14\u7c8b\u3055\u3068\u5b9f\u7528\u7684\u306a\u5fdc\u7528\u306e\u30d0\u30e9\u30f3\u30b9\u3067\u3059\u3002\u660e\u78ba\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u6b63\u78ba\u306a\u5c5e\u6027\u3001\u305d\u3057\u3066\u660e\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u95a2\u4fc2\u306b\u7126\u70b9\u3092\u5f53\u3066\u308b\u3053\u3068\u3067\u3001\u6210\u9577\u3068\u5b89\u5b9a\u6027\u3092\u652f\u3048\u308b\u57fa\u76e4\u3092\u69cb\u7bc9\u3067\u304d\u307e\u3059\u3002<\/p>\n

                  \u5358\u306b\u7dda\u3084\u7bb1\u3092\u63cf\u304f\u3060\u3051\u3067\u306a\u304f\u3001\u73fe\u5b9f\u3092\u6b63\u78ba\u306b\u30e2\u30c7\u30eb\u5316\u3059\u308b\u3053\u3068\u304c\u76ee\u6a19\u3067\u3042\u308b\u3053\u3068\u3092\u5fd8\u308c\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u512a\u308c\u305f\u56f3\u306f\u8907\u96d1\u306a\u30ed\u30b8\u30c3\u30af\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u4f1d\u9054\u3057\u307e\u3059\u3002\u305d\u308c\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30c1\u30fc\u30e0\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u8005\u3001\u304a\u3088\u3073\u30d3\u30b8\u30cd\u30b9\u30a2\u30ca\u30ea\u30b9\u30c8\u306b\u3068\u3063\u3066\u306e\u552f\u4e00\u306e\u771f\u5b9f\u306e\u6e90\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

                  \u8a2d\u8a08\u30d5\u30a7\u30fc\u30ba\u306b\u6642\u9593\u3092\u6295\u8cc7\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4eca ERD \u3092\u6d17\u7df4\u3055\u305b\u308b\u305f\u3081\u306b\u8cbb\u3084\u3057\u305f\u52aa\u529b\u306f\u3001\u5f8c\u306e\u30c7\u30d0\u30c3\u30b0\u3084\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u306b\u6570\u3048\u304d\u308c\u306a\u3044\u6642\u9593\u3092\u7bc0\u7d04\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306f\u3001\u7df4\u7fd2\u3068\u53b3\u683c\u306a\u30ec\u30d3\u30e5\u30fc\u3092\u901a\u3058\u3066\u5411\u4e0a\u3059\u308b\u30b9\u30ad\u30eb\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

                  \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8a2d\u8a08\u306f\u3001\u5efa\u7269\u306e\u5efa\u7bc9\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u57fa\u76e4\u304c\u5f31\u3051\u308c\u3070…<\/p>\n","protected":false},"author":1,"featured_media":2122,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u56f3\u3068\u306f\u4f55\u304b\uff1f \ud83d\udcca","_yoast_wpseo_metadesc":"\u52b9\u679c\u7684\u306a ERD \u306e\u5fc5\u9808\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u5805\u7262\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306e\u305f\u3081\u306b\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u95a2\u4fc2\u3001\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u3001\u304a\u3088\u3073\u6b63\u898f\u5316\u3092\u63a2\u6c42\u3057\u3066\u304f\u3060\u3055\u3044\u3002","source_url":"","fifu_image_url":"","fifu_image_alt":"","_fifu_image_alt":"","fifu_alt":"","_fifu_alt":"","fifu_image_title":"","_fifu_image_title":"","fifu_input_alt":"","vp_image_hash":"","footnotes":""},"categories":[68],"tags":[89,92],"asset-category":[],"class_list":["post-2121","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-database-design","tag-academic","tag-erd"],"source_url":"","fifu_image_url":"","fifu_image_alt":"","vp_image_hash":"","yoast_head":"\n\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u56f3\u3068\u306f\u4f55\u304b\uff1f \ud83d\udcca<\/title>\n<meta name=\"description\" content=\"\u52b9\u679c\u7684\u306a ERD \u306e\u5fc5\u9808\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u5805\u7262\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306e\u305f\u3081\u306b\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u95a2\u4fc2\u3001\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u3001\u304a\u3088\u3073\u6b63\u898f\u5316\u3092\u63a2\u6c42\u3057\u3066\u304f\u3060\u3055\u3044\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-note.com\/ja\/robust-entity-relationship-diagram-components\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u56f3\u3068\u306f\u4f55\u304b\uff1f \ud83d\udcca\" \/>\n<meta property=\"og:description\" content=\"\u52b9\u679c\u7684\u306a ERD \u306e\u5fc5\u9808\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u5805\u7262\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306e\u305f\u3081\u306b\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u95a2\u4fc2\u3001\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u3001\u304a\u3088\u3073\u6b63\u898f\u5316\u3092\u63a2\u6c42\u3057\u3066\u304f\u3060\u3055\u3044\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/\" \/>\n<meta property=\"og:site_name\" content=\"Viz Note Japanese - AI Insights & Software Industry Updates\" \/>\n<meta property=\"article:published_time\" content=\"2026-04-11T10:44:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1664\" \/>\n\t<meta property=\"og:image:height\" content=\"928\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"vpadmin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"vpadmin\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/\"},\"author\":{\"name\":\"vpadmin\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/#\/schema\/person\/d69595112293b803501f7b381be28255\"},\"headline\":\"\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u5206\u89e3\u3092\u89e3\u660e\u3059\u308b\uff1a\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3092\u672c\u5f53\u306b\u652f\u3048\u308b\u3082\u306e\u306f\u4f55\u304b\",\"datePublished\":\"2026-04-11T10:44:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/\"},\"wordCount\":34,\"publisher\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg\",\"keywords\":[\"academic\",\"erd\"],\"articleSection\":[\"Database Design\"],\"inLanguage\":\"ja\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/\",\"url\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/\",\"name\":\"\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u56f3\u3068\u306f\u4f55\u304b\uff1f \ud83d\udcca\",\"isPartOf\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg\",\"datePublished\":\"2026-04-11T10:44:51+00:00\",\"description\":\"\u52b9\u679c\u7684\u306a ERD \u306e\u5fc5\u9808\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u5805\u7262\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306e\u305f\u3081\u306b\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u95a2\u4fc2\u3001\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u3001\u304a\u3088\u3073\u6b63\u898f\u5316\u3092\u63a2\u6c42\u3057\u3066\u304f\u3060\u3055\u3044\u3002\",\"breadcrumb\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#breadcrumb\"},\"inLanguage\":\"ja\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#primaryimage\",\"url\":\"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg\",\"contentUrl\":\"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg\",\"width\":1664,\"height\":928},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.viz-note.com\/ja\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u5206\u89e3\u3092\u89e3\u660e\u3059\u308b\uff1a\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3092\u672c\u5f53\u306b\u652f\u3048\u308b\u3082\u306e\u306f\u4f55\u304b\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/#website\",\"url\":\"https:\/\/www.viz-note.com\/ja\/\",\"name\":\"Viz Note Japanese - AI Insights & Software Industry Updates\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.viz-note.com\/ja\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ja\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/#organization\",\"name\":\"Viz Note Japanese - AI Insights & Software Industry Updates\",\"url\":\"https:\/\/www.viz-note.com\/ja\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2025\/03\/cropped-viz-note-logo.png\",\"contentUrl\":\"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2025\/03\/cropped-viz-note-logo.png\",\"width\":512,\"height\":512,\"caption\":\"Viz Note Japanese - AI Insights & Software Industry Updates\"},\"image\":{\"@id\":\"https:\/\/www.viz-note.com\/ja\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/#\/schema\/person\/d69595112293b803501f7b381be28255\",\"name\":\"vpadmin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ja\",\"@id\":\"https:\/\/www.viz-note.com\/ja\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g\",\"caption\":\"vpadmin\"},\"sameAs\":[\"https:\/\/www.viz-note.com\"],\"url\":\"https:\/\/www.viz-note.com\/ja\/author\/vpadmin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u56f3\u3068\u306f\u4f55\u304b\uff1f \ud83d\udcca","description":"\u52b9\u679c\u7684\u306a ERD \u306e\u5fc5\u9808\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u5805\u7262\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306e\u305f\u3081\u306b\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u95a2\u4fc2\u3001\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u3001\u304a\u3088\u3073\u6b63\u898f\u5316\u3092\u63a2\u6c42\u3057\u3066\u304f\u3060\u3055\u3044\u3002","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/","og_locale":"ja_JP","og_type":"article","og_title":"\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u56f3\u3068\u306f\u4f55\u304b\uff1f \ud83d\udcca","og_description":"\u52b9\u679c\u7684\u306a ERD \u306e\u5fc5\u9808\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u5805\u7262\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306e\u305f\u3081\u306b\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u95a2\u4fc2\u3001\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u3001\u304a\u3088\u3073\u6b63\u898f\u5316\u3092\u63a2\u6c42\u3057\u3066\u304f\u3060\u3055\u3044\u3002","og_url":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/","og_site_name":"Viz Note Japanese - AI Insights & Software Industry Updates","article_published_time":"2026-04-11T10:44:51+00:00","og_image":[{"width":1664,"height":928,"url":"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg","type":"image\/jpeg"}],"author":"vpadmin","twitter_card":"summary_large_image","twitter_misc":{"\u57f7\u7b46\u8005":"vpadmin"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#article","isPartOf":{"@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/"},"author":{"name":"vpadmin","@id":"https:\/\/www.viz-note.com\/ja\/#\/schema\/person\/d69595112293b803501f7b381be28255"},"headline":"\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u5206\u89e3\u3092\u89e3\u660e\u3059\u308b\uff1a\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3092\u672c\u5f53\u306b\u652f\u3048\u308b\u3082\u306e\u306f\u4f55\u304b","datePublished":"2026-04-11T10:44:51+00:00","mainEntityOfPage":{"@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/"},"wordCount":34,"publisher":{"@id":"https:\/\/www.viz-note.com\/ja\/#organization"},"image":{"@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#primaryimage"},"thumbnailUrl":"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg","keywords":["academic","erd"],"articleSection":["Database Design"],"inLanguage":"ja"},{"@type":"WebPage","@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/","url":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/","name":"\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30b7\u30c3\u30d7\u56f3\u3068\u306f\u4f55\u304b\uff1f \ud83d\udcca","isPartOf":{"@id":"https:\/\/www.viz-note.com\/ja\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#primaryimage"},"image":{"@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#primaryimage"},"thumbnailUrl":"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg","datePublished":"2026-04-11T10:44:51+00:00","description":"\u52b9\u679c\u7684\u306a ERD \u306e\u5fc5\u9808\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u5805\u7262\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306e\u305f\u3081\u306b\u3001\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3001\u95a2\u4fc2\u3001\u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u3001\u304a\u3088\u3073\u6b63\u898f\u5316\u3092\u63a2\u6c42\u3057\u3066\u304f\u3060\u3055\u3044\u3002","breadcrumb":{"@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#breadcrumb"},"inLanguage":"ja","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/"]}]},{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#primaryimage","url":"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg","contentUrl":"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2026\/04\/erd-components-child-drawing-infographic.jpg","width":1664,"height":928},{"@type":"BreadcrumbList","@id":"https:\/\/www.viz-note.com\/ja\/robust-entity-relationship-diagram-components\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.viz-note.com\/ja\/"},{"@type":"ListItem","position":2,"name":"\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u5206\u89e3\u3092\u89e3\u660e\u3059\u308b\uff1a\u5805\u7262\u306a\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u95a2\u4fc2\u56f3\uff08ERD\uff09\u3092\u672c\u5f53\u306b\u652f\u3048\u308b\u3082\u306e\u306f\u4f55\u304b"}]},{"@type":"WebSite","@id":"https:\/\/www.viz-note.com\/ja\/#website","url":"https:\/\/www.viz-note.com\/ja\/","name":"Viz Note Japanese - AI Insights & Software Industry Updates","description":"","publisher":{"@id":"https:\/\/www.viz-note.com\/ja\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.viz-note.com\/ja\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ja"},{"@type":"Organization","@id":"https:\/\/www.viz-note.com\/ja\/#organization","name":"Viz Note Japanese - AI Insights & Software Industry Updates","url":"https:\/\/www.viz-note.com\/ja\/","logo":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.viz-note.com\/ja\/#\/schema\/logo\/image\/","url":"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2025\/03\/cropped-viz-note-logo.png","contentUrl":"https:\/\/www.viz-note.com\/ja\/wp-content\/uploads\/sites\/4\/2025\/03\/cropped-viz-note-logo.png","width":512,"height":512,"caption":"Viz Note Japanese - AI Insights & Software Industry Updates"},"image":{"@id":"https:\/\/www.viz-note.com\/ja\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/www.viz-note.com\/ja\/#\/schema\/person\/d69595112293b803501f7b381be28255","name":"vpadmin","image":{"@type":"ImageObject","inLanguage":"ja","@id":"https:\/\/www.viz-note.com\/ja\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/56e0eb902506d9cea7c7e209205383146b8e81c0ef2eff693d9d5e0276b3d7e3?s=96&d=mm&r=g","caption":"vpadmin"},"sameAs":["https:\/\/www.viz-note.com"],"url":"https:\/\/www.viz-note.com\/ja\/author\/vpadmin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/posts\/2121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/comments?post=2121"}],"version-history":[{"count":0,"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/posts\/2121\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/media\/2122"}],"wp:attachment":[{"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/media?parent=2121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/categories?post=2121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/tags?post=2121"},{"taxonomy":"asset-category","embeddable":true,"href":"https:\/\/www.viz-note.com\/ja\/wp-json\/wp\/v2\/asset-category?post=2121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}