{"id":1646,"date":"2026-03-23T11:07:48","date_gmt":"2026-03-23T11:07:48","guid":{"rendered":"https:\/\/www.viz-read.com\/ja\/common-erd-confusion-debunking-myths\/"},"modified":"2026-03-23T11:07:48","modified_gmt":"2026-03-23T11:07:48","slug":"common-erd-confusion-debunking-myths","status":"publish","type":"post","link":"https:\/\/www.viz-read.com\/ja\/common-erd-confusion-debunking-myths\/","title":{"rendered":"\u4e00\u822c\u7684\u306aERD\u306e\u6df7\u4e71\uff1a\u521d\u5fc3\u8005\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u76f4\u9762\u3059\u308b\u795e\u8a71\u306e\u89e3\u660e"},"content":{"rendered":"

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\n
\"Kawaii-style<\/figure>\n<\/div>\n

1. ERD\u306f\u6700\u7d42\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u69cb\u9020\u3092\u8868\u3059\u3082\u306e\u3067\u3042\u308b \ud83d\udcd0<\/h2>\n

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    \n
  • \u53cd\u5fa9\u7684\u8a2d\u8a08\uff1a<\/strong>\u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306f\u53cd\u5fa9\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3042\u308b\u3002\u8981\u4ef6\u304c\u9032\u5316\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u30b9\u30ad\u30fc\u30de\u3082\u305d\u308c\u306b\u5408\u308f\u305b\u3066\u9032\u5316\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n
  • \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\uff1a<\/strong> \u305f\u3068\u3048\u6570\u5e74\u9593\u306e\u6280\u8853\u7684\u8ca0\u50b5\u3092\u62b1\u3048\u7d9a\u3051\u308b\u3088\u308a\u3082\u3001\u30c6\u30fc\u30d6\u30eb\u69cb\u9020\u3092\u65e9\u671f\u306b\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3059\u308b\u65b9\u304c\u826f\u3044\u3053\u3068\u304c\u591a\u3044\u3002<\/li>\n
  • \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\uff1a<\/strong> ERD\u306f\u52d5\u7684\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u3002\u69cb\u9020\u7684\u306a\u5909\u66f4\u304c\u751f\u3058\u305f\u969b\u306b\u306f\u3001\u5e38\u306b\u66f4\u65b0\u3059\u3079\u304d\u3067\u3042\u308b\u3002<\/li>\n<\/ul>\n

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    2. \u3088\u308a\u591a\u304f\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u3042\u308b\u65b9\u304c\u3001\u6574\u7406\u6574\u9813\u306b\u6709\u5229\u3067\u3042\u308b \ud83d\uddc2\ufe0f<\/h2>\n

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    \u65b0\u3057\u3044\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u6c7a\u3081\u308b\u969b\u306b\u306f\u3001\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u3092\u691c\u8a0e\u3059\u3079\u304d\u3067\u3042\u308b\uff1a<\/p>\n

      \n
    • \u30af\u30a8\u30ea\u306e\u8907\u96d1\u3055\uff1a<\/strong>\u65b0\u3057\u3044\u30c6\u30fc\u30d6\u30eb\u3054\u3068\u306b\u65b0\u3057\u3044\u7d50\u5408\uff08JOIN\uff09\u304c\u5c0e\u5165\u3055\u308c\u308b\u3002\u7d50\u5408\u304c\u591a\u3059\u304e\u308b\u3068\u3001\u8aad\u307f\u53d6\u308a\u64cd\u4f5c\u304c\u9045\u304f\u306a\u308b\u3002<\/li>\n
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    • \u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\uff1a<\/strong>\u30b9\u30c8\u30ec\u30fc\u30b8\u306f\u5b89\u4fa1\u3060\u304c\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3084\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30ed\u30b0\u306e\u5897\u5927\u306f\u3001\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u6642\u306b\u554f\u984c\u3068\u306a\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/li>\n<\/ul>\n

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      \u5074\u9762<\/th>\n\u6b63\u898f\u5316<\/th>\n\u975e\u6b63\u898f\u5316<\/th>\n<\/tr>\n<\/thead>\n
      \u30c7\u30fc\u30bf\u6574\u5408\u6027<\/strong><\/td>\n\u9ad8\u3044<\/td>\n\u4f4e\u3044\uff08\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\u304c\u5fc5\u8981\uff09<\/td>\n<\/tr>\n
      \u66f8\u304d\u8fbc\u307f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong><\/td>\n\u9045\u3044\uff08\u5236\u7d04\u304c\u591a\u3044\uff09<\/td>\n\u901f\u3044<\/td>\n<\/tr>\n
      \u8aad\u307f\u53d6\u308a\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong><\/td>\n\u9045\u3044\uff08\u7d50\u5408\u304c\u591a\u3044\uff09<\/td>\n\u901f\u3044<\/td>\n<\/tr>\n
      \u4f7f\u7528\u30b1\u30fc\u30b9<\/strong><\/td>\nOLTP\uff08\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30b7\u30b9\u30c6\u30e0\uff09<\/td>\nOLAP\uff08\u30ec\u30dd\u30fc\u30c8\u4f5c\u6210\u304a\u3088\u3073\u5206\u6790\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      3. \u30ab\u30fc\u30c7\u30a3\u30ca\u30ea\u30c6\u30a3\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u60c5\u5831\u3067\u3059 \ud83d\udcc9<\/h2>\n

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        \n
      • 1\u5bfe1\uff081:1\uff09\uff1a<\/strong>\u7a00\u3067\u3059\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3084\u5927\u304d\u306a\u30c6\u30fc\u30d6\u30eb\u306e\u5206\u5272\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n
      • 1\u5bfe\u591a\uff081:N\uff09\uff1a<\/strong>\u6700\u3082\u4e00\u822c\u7684\u306a\u95a2\u4fc2\uff08\u4f8b\uff1a\u30e6\u30fc\u30b6\u30fc\u306f\u8907\u6570\u306e\u6ce8\u6587\u3092\u6301\u3064\uff09\u3002<\/li>\n
      • \u591a\u5bfe\u591a\uff08M:N\uff09\uff1a<\/strong>\u7d50\u5408\u30c6\u30fc\u30d6\u30eb\u304c\u5fc5\u8981\u3067\u3059\uff08\u4f8b\uff1a\u751f\u5f92\u3068\u6388\u696d\uff09\u3002<\/li>\n<\/ul>\n

        \u3053\u308c\u3089\u306e\u95a2\u4fc2\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u3067\u3001\u4ed6\u306e\u958b\u767a\u8005\u306b\u610f\u56f3\u3092\u4f1d\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u306f\u5358\u306a\u308b\u6280\u8853\u7684\u8981\u4ef6\u3067\u306f\u306a\u304f\u3001\u30c7\u30fc\u30bf\u304c\u81ea\u5206\u81ea\u8eab\u3068\u3069\u306e\u3088\u3046\u306b\u95a2\u4fc2\u3059\u308b\u304b\u3092\u610f\u5473\u7684\u306b\u5ba3\u8a00\u3059\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n

        4. \u540d\u524d\u4ed8\u3051\u898f\u5247\u306f\u91cd\u8981\u3067\u306f\u306a\u3044 \ud83c\udff7\ufe0f<\/h2>\n

        \u77ed\u304f\u3001\u96e3\u89e3\u306a\u540d\u524d\uff08\u4f8b\uff1atbl_usr<\/code>\u3084col_id_1<\/code>\u3068\u5165\u529b\u6642\u9593\u3092\u7bc0\u7d04\u3057\u305f\u304f\u306a\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u30b3\u30fc\u30c9\u3084\u30b9\u30ad\u30fc\u30de\u306e\u540d\u524d\u306f\u66f8\u304b\u308c\u308b\u3088\u308a\u3082\u8aad\u307e\u308c\u308b\u56de\u6570\u304c\u306f\u308b\u304b\u306b\u591a\u3044\u3067\u3059\u3002<\/p>\n

        \u660e\u78ba\u306a\u540d\u524d\u4ed8\u3051\u898f\u5247\u306f\u8a8d\u77e5\u8ca0\u8377\u3092\u8efd\u6e1b\u3057\u307e\u3059\u3002\u65b0\u3057\u3044\u958b\u767a\u8005\u304c\u30c1\u30fc\u30e0\u306b\u52a0\u308f\u3063\u305f\u3068\u304d\u3001\u6570\u5206\u4ee5\u5185\u306b\u30b9\u30ad\u30fc\u30de\u69cb\u9020\u3092\u7406\u89e3\u3067\u304d\u308b\u3079\u304d\u3067\u3059\u3002<\/p>\n

        \u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n

          \n
        • \u4e00\u8cab\u6027\uff1a<\/strong>\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u5168\u4f53\u3067\u540c\u3058\u30b9\u30bf\u30a4\u30eb\uff08snake_case\u3001camelCase\uff09\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li>\n
        • \u8a18\u8ff0\u6027\uff1a<\/strong>\u30c6\u30fc\u30d6\u30eb\u540d\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u8868\u3059\u3079\u304d\u3067\u3059\uff08\u4f8b\uff1a”\u30e6\u30fc\u30b6\u30fc<\/code>\u3001\u3067\u306f\u306a\u304ft1<\/code>).<\/li>\n
        • \u8907\u6570\u5f62\uff1a<\/strong>\u4e00\u822c\u7684\u306b\u3001\u30c6\u30fc\u30d6\u30eb\u306f\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u8868\u3059\u305f\u3081\u3001\u8907\u6570\u5f62\u306e\u540d\u524d\u306e\u65b9\u304c\u3057\u3070\u3057\u3070\u660e\u78ba\u3067\u3059\uff08\u4f8b\uff1a\u6ce8\u6587<\/code> \u5bfe order<\/code>).<\/li>\n
        • \u4e88\u7d04\u8a9e\u3092\u907f\u3051\u308b\uff1a<\/strong> \u4ee5\u4e0b\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u306e\u3088\u3046\u306a\u3082\u306e\u3092\u4f7f\u7528\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044group<\/code> \u307e\u305f\u306f order<\/code> \u30a8\u30b9\u30b1\u30fc\u30d7\u305b\u305a\u306b\u3002<\/li>\n<\/ul>\n

          \u547d\u540d\u898f\u5247\u306b\u6642\u9593\u3092\u6295\u8cc7\u3059\u308b\u3053\u3068\u306f\u3001\u30c7\u30d0\u30c3\u30b0\u6642\u9593\u306e\u77ed\u7e2e\u3068\u30b3\u30fc\u30c9\u30ec\u30d3\u30e5\u30fc\u4e2d\u306e\u8aa4\u89e3\u306e\u6e1b\u5c11\u3068\u3044\u3046\u6069\u6075\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002<\/p>\n

          5. \u5916\u90e8\u30ad\u30fc\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u4f4e\u4e0b\u3055\u305b\u308b \u26a1<\/h2>\n

          \u5e83\u304f\u4fe1\u3058\u3089\u308c\u3066\u3044\u308b\u8aa4\u89e3\u3068\u3057\u3066\u3001\u5916\u90e8\u30ad\u30fc\u5236\u7d04\u306f\u66f8\u304d\u8fbc\u307f\u64cd\u4f5c\u306b\u3042\u307e\u308a\u306b\u3082\u5927\u304d\u306a\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u691c\u8a3c\u306b\u7f6e\u304d\u63db\u3048\u308b\u3079\u304d\u3060\u3068\u3044\u3046\u8003\u3048\u304c\u3042\u308a\u307e\u3059\u3002\u78ba\u304b\u306b\u5236\u7d04\u306f\u51e6\u7406\u6642\u9593\u3092\u8ffd\u52a0\u3057\u307e\u3059\u304c\u3001\u30c7\u30fc\u30bf\u7834\u640d\u306e\u30ea\u30b9\u30af\u3068\u6bd4\u3079\u308b\u3068\u3001\u305d\u306e\u30b3\u30b9\u30c8\u306f\u3057\u3070\u3057\u3070\u7121\u8996\u3067\u304d\u308b\u307b\u3069\u3067\u3059\u3002<\/p>\n

          \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ec\u30d9\u30eb\u306e\u691c\u8a3c\u306f\u3001\u30ec\u30fc\u30b9\u30b3\u30f3\u30c7\u30a3\u30b7\u30e7\u30f3\u3084\u30d0\u30b0\u306e\u539f\u56e0\u306b\u306a\u308a\u3084\u3059\u3044\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u5236\u7d04\u306f\u539f\u5b50\u7684\u3067\u3042\u308a\u3001\u30a8\u30f3\u30b8\u30f3\u81ea\u4f53\u306b\u3088\u3063\u3066\u5f37\u5236\u3055\u308c\u307e\u3059\u3002<\/p>\n

            \n
          • \u6574\u5408\u6027\uff1a<\/strong> \u5916\u90e8\u30ad\u30fc\u306f\u3001\u5b64\u7acb\u3057\u305f\u30c7\u30fc\u30bf\u3092\u81ea\u52d5\u7684\u306b\u9632\u6b62\u3057\u307e\u3059\u3002<\/li>\n
          • \u6700\u9069\u5316\uff1a<\/strong> \u73fe\u4ee3\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30a8\u30f3\u30b8\u30f3\u306f\u3001\u3053\u308c\u3089\u306e\u95a2\u4fc2\u306b\u57fa\u3065\u3044\u3066\u7d50\u5408\u64cd\u4f5c\u3092\u6700\u9069\u5316\u3057\u307e\u3059\u3002<\/li>\n
          • \u4f1d\u64ad\uff1a<\/strong> CASCADE<\/code> \u524a\u9664\u306e\u4f1d\u64ad\u306f\u3001\u624b\u52d5\u3067\u306e\u30af\u30ea\u30fc\u30f3\u30a2\u30c3\u30d7\u30b3\u30fc\u30c9\u306a\u3057\u3067\u8907\u96d1\u306a\u95a2\u4fc2\u3092\u7ba1\u7406\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<\/ul>\n

            \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u7d76\u5bfe\u7684\u306a\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u6574\u5408\u6027\u304c\u5916\u90e8\u3067\u7ba1\u7406\u3055\u308c\u3066\u3044\u308b\u7279\u5b9a\u306e\u9ad8\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u306e\u30d0\u30c3\u30c1\u30ed\u30fc\u30c9\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u306e\u307f\u3001\u5236\u7d04\u3092\u7121\u52b9\u306b\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6a19\u6e96\u7684\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u5e38\u306b\u6709\u52b9\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

            6. ERD\u8a2d\u8a08\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u8005\u5c02\u7528\u3067\u3042\u308b \ud83e\udd16<\/h2>\n

            \u82e5\u624b\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u3001\u30b9\u30ad\u30fc\u30de\u8a2d\u8a08\u306f\u8ab0\u304b\u4ed6\u306e\u4eba\u306e\u4ed5\u4e8b\u3001\u7279\u306bDBA\u306e\u4ed5\u4e8b\u3060\u3068\u8003\u3048\u304c\u3061\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\u3068\u30c7\u30fc\u30bf\u30b9\u30c8\u30ec\u30fc\u30b8\u5c64\u306e\u9593\u306b\u4e56\u96e2\u304c\u751f\u3058\u307e\u3059\u3002<\/p>\n

            \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u958b\u767a\u8005\u306f\u3001\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u305d\u308c\u3068\u3084\u308a\u53d6\u308a\u3059\u308b\u30af\u30a8\u30ea\u3092\u5f7c\u3089\u304c\u66f8\u304f\u304b\u3089\u3067\u3059\u3002\u30b9\u30ad\u30fc\u30de\u304c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b8\u30c3\u30af\u3068\u4e00\u81f4\u3057\u306a\u3051\u308c\u3070\u3001\u30b3\u30fc\u30c9\u306f\u975e\u52b9\u7387\u7684\u304b\u3064\u8106\u5f31\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

              \n
            • \u5354\u50cd\uff1a<\/strong>\u958b\u767a\u8005\u3068DBA\u306f\u3001\u8a2d\u8a08\u6bb5\u968e\u306e\u521d\u671f\u304b\u3089\u5354\u50cd\u3059\u3079\u304d\u3067\u3059\u3002<\/li>\n
            • \u30b3\u30fc\u30c9\u751f\u6210\uff1a<\/strong>\u591a\u304f\u306eORM\uff08\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30de\u30c3\u30d1\u30fc\uff09\u306f\u3001ERD\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u3066\u30ea\u30dd\u30b8\u30c8\u30ea\u30af\u30e9\u30b9\u3092\u751f\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n
            • \u30c7\u30d0\u30c3\u30b0\uff1a<\/strong>\u95a2\u4fc2\u6027\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u9045\u3044\u30af\u30a8\u30ea\u3084\u30c7\u30fc\u30bf\u306e\u4e0d\u6574\u5408\u3092\u8a3a\u65ad\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n

              \u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u306e\u6240\u6709\u306f\u5171\u6709\u3055\u308c\u305f\u8cac\u4efb\u3067\u3059\u3002\u524d\u5411\u304d\u306aUI\u304c\u3069\u308c\u307b\u3069\u826f\u304f\u3066\u3082\u3001\u30c7\u30fc\u30bf\u306b\u52b9\u7387\u7684\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u5931\u6557\u3057\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3002<\/p>\n

              7. 1\u3064\u306e\u30b9\u30ad\u30fc\u30de\u3067\u3059\u3079\u3066\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9\u306b\u5bfe\u5fdc\u3059\u308b \ud83d\udd04<\/h2>\n

              \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u8a2d\u8a08\u3059\u308b\u305f\u3081\u306e\u300c\u6700\u826f\u300d\u306e\u65b9\u6cd5\u306f\u4e00\u3064\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30bd\u30fc\u30b7\u30e3\u30eb\u30e1\u30c7\u30a3\u30a2\u306e\u30d5\u30a3\u30fc\u30c9\u306b\u6700\u9069\u5316\u3055\u308c\u305f\u30b9\u30ad\u30fc\u30de\u306f\u3001\u8ca1\u52d9\u53f0\u5e33\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305f\u3082\u306e\u3068\u5927\u304d\u304f\u7570\u306a\u308a\u307e\u3059\u3002<\/p>\n

              \u53b3\u683c\u306a\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u306b\u5f93\u3046\u3088\u308a\u3082\u3001\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n

                \n
              • \u8aad\u307f\u8fbc\u307f\u304c\u91cd\u3044\uff1a<\/strong>\u6b63\u898f\u5316\u306e\u89e3\u9664\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u6226\u7565\u3092\u512a\u5148\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n
              • \u66f8\u304d\u8fbc\u307f\u304c\u91cd\u3044\uff1a<\/strong>\u6b63\u898f\u5316\u3068\u53b3\u683c\u306a\u6574\u5408\u6027\u5236\u7d04\u3092\u512a\u5148\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n
              • \u8907\u96d1\u306a\u30af\u30a8\u30ea\uff1a<\/strong> \u7d99\u7d9a\u7684\u306b\u4f7f\u7528\u3055\u308c\u308b\u5217\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u914d\u7f6e\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002WHERE<\/code>\u53e5\u306b\u3002<\/li>\n<\/ul>\n

                \u3059\u3079\u3066\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u72ec\u81ea\u306e\u8981\u4ef6\u304c\u3042\u308a\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u3001\u3057\u3070\u3057\u3070\u300c\u307e\u3042\u307e\u3042\u300d\u52d5\u4f5c\u3059\u308b\u304c\u7279\u5b9a\u306e\u8ca0\u8377\u6761\u4ef6\u4e0b\u3067\u5931\u6557\u3059\u308b\u89e3\u6c7a\u7b56\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u69cb\u9020\u3092\u6700\u7d42\u6c7a\u5b9a\u3059\u308b\u524d\u306b\u3001\u3042\u306a\u305f\u306e\u5177\u4f53\u7684\u306a\u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u3092\u5206\u6790\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

                8. \u5c5e\u6027\u306a\u3057\u3067\u3082\u56f3\u306f\u5b8c\u6210\u3057\u3066\u3044\u308b \ud83d\udcdd<\/h2>\n

                \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u95a2\u4fc2\u6027\u3092\u793a\u3059\u56f3\u306f\u3088\u304f\u898b\u3089\u308c\u307e\u3059\u304c\u3001\u8a73\u7d30\u306a\u5c5e\u6027\u5b9a\u7fa9\u304c\u6b20\u3051\u3066\u3044\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u5b8c\u5168\u306aERD\u306f\u3001\u30c7\u30fc\u30bf\u578b\u3001\u5236\u7d04\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u660e\u793a\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n

                \u3053\u306e\u30ec\u30d9\u30eb\u306e\u8a73\u7d30\u304c\u306a\u3051\u308c\u3070\u3001\u56f3\u306f\u5358\u306a\u308b\u30b9\u30b1\u30c3\u30c1\u306b\u3059\u304e\u307e\u305b\u3093\u3002\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30b9\u30af\u30ea\u30d7\u30c8\u306e\u751f\u6210\u306b\u306f\u4f7f\u7528\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n

                \u5b9a\u7fa9\u3059\u3079\u304d\u91cd\u8981\u306a\u5c5e\u6027\u306b\u306f\u4ee5\u4e0b\u304c\u542b\u307e\u308c\u307e\u3059\uff1a<\/p>\n

                  \n
                • \u30c7\u30fc\u30bf\u578b\uff1a<\/strong> \u6574\u6570\u3001Varchar\u3001\u30d6\u30fc\u30eb\u5024\u3001\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3002<\/li>\n
                • \u5236\u7d04\uff1a<\/strong> NULL\u4e0d\u53ef\u3001\u4e00\u610f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3002<\/li>\n
                • \u9577\u3055\uff1a<\/strong>\u6587\u5b57\u5217\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u6587\u5b57\u6570\u5236\u9650\u3002<\/li>\n
                • \u30a4\u30f3\u30c7\u30c3\u30af\u30b9:<\/strong>\u691c\u7d22\u6700\u9069\u5316\u304c\u5fc5\u8981\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u3069\u308c\u304b\u3002<\/li>\n<\/ul>\n

                  \u5c5e\u6027\u306e\u8a73\u7d30\u304c\u6b20\u3051\u3066\u3044\u308b\u3068\u3001\u5b9f\u88c5\u30d5\u30a7\u30fc\u30ba\u3067\u66d6\u6627\u3055\u304c\u751f\u3058\u3084\u3059\u304f\u3001\u6700\u7d42\u6bb5\u968e\u3067\u306e\u5909\u66f4\u3084\u6f5c\u5728\u7684\u306a\u30a8\u30e9\u30fc\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n

                  9. \u4e3b\u30ad\u30fc\u306f\u6574\u6570\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044 \ud83d\udd22<\/h2>\n

                  \u81ea\u52d5\u5897\u5206\u306e\u6574\u6570\u306f\u6700\u3082\u4e00\u822c\u7684\u306a\u4e3b\u30ad\u30fc\u6226\u7565\u3060\u304c\u3001\u552f\u4e00\u306e\u9078\u629e\u80a2\u3067\u306f\u306a\u3044\u3002\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u6574\u6570\u30ad\u30fc\u304c\u885d\u7a81\u3092\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n

                    \n
                  • UUIDs:<\/strong>\u4e00\u610f\u306a\u8b58\u5225\u5b50\uff08UUID\uff09\u306f\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u304a\u3044\u3066\u6709\u7528\u3067\u3042\u308b\u3002<\/li>\n
                  • \u8907\u5408\u30ad\u30fc:<\/strong>\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u3001\u8907\u6570\u306e\u5217\u306e\u7d44\u307f\u5408\u308f\u305b\u304c\u771f\u306e\u30e6\u30cb\u30fc\u30af\u8b58\u5225\u5b50\u3068\u306a\u308b\u3002<\/li>\n
                  • \u4ee3\u66ff\u30ad\u30fc vs. \u81ea\u7136\u30ad\u30fc:<\/strong>\u4ee3\u66ff\u30ad\u30fc\uff08\u751f\u6210\u3055\u308c\u305f\u3082\u306e\uff09\u306f\u3001\u8b58\u5225\u5b50\u3068\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u3092\u5206\u96e2\u3059\u308b\u3002<\/li>\n<\/ul>\n

                    \u9069\u5207\u306a\u30ad\u30fc\u306e\u7a2e\u985e\u3092\u9078\u3076\u3053\u3068\u306f\u3001\u30af\u30e9\u30b9\u30bf\u30ea\u30f3\u30b0\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3001\u5916\u90e8\u30ad\u30fc\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3059\u308b\u3002\u6574\u6570\u306f\u7d50\u5408\u51e6\u7406\u306b\u304a\u3044\u3066\u4e00\u822c\u7684\u306b\u9ad8\u901f\u3060\u304c\u3001\u30b7\u30e3\u30fc\u30c7\u30a3\u30f3\u30b0\u74b0\u5883\u3067\u306fUUID\u306e\u65b9\u304c\u3088\u308a\u826f\u3044\u5206\u6563\u6027\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/p>\n

                    10. ERD\u8a2d\u8a08\u306f\u4e00\u5ea6\u9650\u308a\u306e\u4f5c\u696d\u3067\u3042\u308b \ud83d\udeab<\/h2>\n

                    \u30b9\u30ad\u30fc\u30de\u3092\u8a2d\u8a08\u3057\u3066\u305d\u306e\u307e\u307e\u9032\u3080\u306e\u306f\u5371\u967a\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u3067\u3042\u308b\u3002\u30b7\u30b9\u30c6\u30e0\u306f\u5909\u5316\u3057\u3001\u30c7\u30fc\u30bf\u306e\u30cb\u30fc\u30ba\u3082\u9032\u5316\u3059\u308b\u30023\u5e74\u524d\u306b\u826f\u3044\u8a2d\u8a08\u3060\u3063\u305f\u3082\u306e\u304c\u3001\u4eca\u65e5\u3067\u306f\u8ca0\u62c5\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n

                      \n
                    • \u5b9a\u671f\u7684\u306a\u76e3\u67fb:<\/strong>\u5b9a\u671f\u7684\u306b\u3001\u672a\u4f7f\u7528\u306e\u30c6\u30fc\u30d6\u30eb\u3084\u5217\u304c\u306a\u3044\u304b\u30b9\u30ad\u30fc\u30de\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n
                    • \u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406:<\/strong>\u30b9\u30ad\u30fc\u30de\u306e\u5909\u66f4\u3092\u30b3\u30fc\u30c9\u3068\u3057\u3066\u6271\u3046\u3002\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u306b\u306f\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3002<\/li>\n
                    • \u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u30eb\u30fc\u30d7:<\/strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30c7\u30fc\u30bf\u306b\u8033\u3092\u50be\u3051\u3001\u69cb\u9020\u7684\u306a\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b\u3002<\/li>\n<\/ul>\n

                      \u5065\u5168\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u7dad\u6301\u3059\u308b\u306b\u306f\u7d99\u7d9a\u7684\u306a\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u307e\u3067\u30b9\u30ad\u30fc\u30de\u306e\u5065\u5168\u6027\u3092\u7121\u8996\u3059\u308b\u306e\u306f\u3001\u3057\u3070\u3057\u3070\u969c\u5bb3\u3092\u5f15\u304d\u8d77\u3053\u3059\u53cd\u5fdc\u578b\u306e\u6226\u7565\u3067\u3042\u308b\u3002<\/p>\n

                      11. \u8907\u96d1\u306a\u95a2\u4fc2\u306f\u5e38\u306b\u60aa\u3044\u3082\u306e\u3067\u3042\u308b \ud83d\udeab<\/h2>\n

                      \u4e00\u90e8\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u3001\u518d\u5e30\u7684\u95a2\u4fc2\u3084\u6df1\u3044\u968e\u5c64\u69cb\u9020\u306e\u3088\u3046\u306a\u8907\u96d1\u306a\u95a2\u4fc2\u3092\u6050\u308c\u3001\u305d\u308c\u3092\u3084\u308a\u3059\u304e\u308b\u3053\u3068\u3067\u5358\u7d14\u5316\u3057\u3066\u3057\u307e\u3046\u3002\u30b7\u30f3\u30d7\u30eb\u3055\u306f\u826f\u3044\u304c\u3001\u5358\u7d14\u5316\u3057\u3059\u304e\u308b\u3068\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u304c\u7834\u7dbb\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/p>\n

                      \u7d44\u7e54\u56f3\u306e\u968e\u5c64\u69cb\u9020\u3092\u8003\u3048\u3066\u307f\u3088\u3046\u3002\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u306f\u8907\u6570\u306e\u5f93\u696d\u54e1\u3092\u7ba1\u7406\u3057\u3001\u5f93\u696d\u54e1\u306f1\u4eba\u306e\u30de\u30cd\u30fc\u30b8\u30e3\u30fc\u306b\u7ba1\u7406\u3055\u308c\u308b\u3002\u3053\u308c\u306f\u6a19\u6e96\u7684\u306a\u518d\u5e30\u7684\u95a2\u4fc2\u3067\u3042\u308b\u3002\u3053\u308c\u3092\u5358\u4e00\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u5e73\u5766\u5316\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u30c1\u30fc\u30e0\u69cb\u9020\u306e\u30ec\u30dd\u30fc\u30c8\u304c\u4e0d\u53ef\u80fd\u306b\u306a\u308b\u3002<\/p>\n

                        \n
                      • \u518d\u5e30\u30c6\u30fc\u30d6\u30eb:<\/strong>\u30ab\u30c6\u30b4\u30ea\u30fc\u3084\u30b3\u30e1\u30f3\u30c8\u3001\u7d44\u7e54\u69cb\u9020\u306b\u6709\u7528\u3067\u3042\u308b\u3002<\/li>\n
                      • \u96a3\u63a5\u30ea\u30b9\u30c8:<\/strong>\u6728\u69cb\u9020\u3092\u683c\u7d0d\u3059\u308b\u305f\u3081\u306e\u4e00\u822c\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u3042\u308b\u3002<\/li>\n
                      • \u30d1\u30b9\u5217\u6319:<\/strong>\u7279\u5b9a\u306e\u8aad\u307f\u53d6\u308a\u30b7\u30ca\u30ea\u30aa\u3067\u3001\u3088\u308a\u9ad8\u901f\u306a\u79fb\u52d5\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306b\u3001\u5b8c\u5168\u306a\u30d1\u30b9\u3092\u683c\u7d0d\u3059\u308b\u3002<\/li>\n<\/ul>\n

                        \u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u304c\u305d\u308c\u3092\u8981\u6c42\u3059\u308b\u5834\u5408\u3001\u8907\u96d1\u3055\u3092\u6050\u308c\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u8907\u96d1\u3055\u304c\u9069\u5207\u306b\u6587\u66f8\u5316\u3055\u308c\u3001\u9069\u5207\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306b\u3088\u3063\u3066\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u306b\u6ce8\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

                        12. \u30d3\u30e5\u30fc\u306f\u30c6\u30fc\u30d6\u30eb\u306e\u5fc5\u8981\u6027\u3092\u7f6e\u304d\u63db\u3048\u308b \ud83d\udcca<\/h2>\n

                        \u4e00\u90e8\u306e\u4eba\u3005\u306f\u3001\u3059\u3079\u3066\u306e\u8907\u96d1\u306a\u30af\u30a8\u30ea\u306b\u5bfe\u3057\u3066\u30d3\u30e5\u30fc\u3092\u4f5c\u6210\u3059\u308c\u3070\u3001\u826f\u597d\u306b\u8a2d\u8a08\u3055\u308c\u305f\u57fa\u76e4\u3068\u306a\u308b\u30c6\u30fc\u30d6\u30eb\u69cb\u9020\u306e\u5fc5\u8981\u6027\u304c\u306a\u304f\u306a\u308b\u3068\u8003\u3048\u3066\u3044\u307e\u3059\u3002\u30d3\u30e5\u30fc\u306f\u5c0e\u51fa\u30c7\u30fc\u30bf\u3067\u3042\u308a\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n

                        \u30d3\u30e5\u30fc\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3084\u62bd\u8c61\u5316\u306b\u304a\u3044\u3066\u512a\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u57fa\u76e4\u30c6\u30fc\u30d6\u30eb\u306e\u57fa\u672c\u7684\u306a\u6b63\u898f\u5316\u3092\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n

                          \n
                        • \u30b9\u30c8\u30ec\u30fc\u30b8\uff1a<\/strong>\u30d3\u30e5\u30fc\u306f\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3057\u307e\u305b\u3093\u3002\u4ee3\u308f\u308a\u306b\u30c7\u30fc\u30bf\u3092\u7167\u4f1a\u3057\u307e\u3059\u3002<\/li>\n
                        • \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\uff1a<\/strong>\u57fa\u76e4\u30c6\u30fc\u30d6\u30eb\u304c\u6700\u9069\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u8907\u96d1\u306a\u30d3\u30e5\u30fc\u306f\u9045\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n
                        • \u4fdd\u5b88\u6027\uff1a<\/strong>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306b\u30d3\u30e5\u30fc\u306b\u4f9d\u5b58\u3059\u308b\u3068\u3001\u30c7\u30fc\u30bf\u306e\u4f9d\u5b58\u95a2\u4fc2\u304c\u96a0\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n

                          \u30d3\u30e5\u30fc\u3092\u4f7f\u3063\u3066\u30a2\u30af\u30bb\u30b9\u3092\u7c21\u7d20\u5316\u3059\u308b\u3079\u304d\u3067\u3059\u304c\u3001\u57fa\u76e4\u3068\u306a\u308b\u30c6\u30fc\u30d6\u30eb\u304c\u5805\u7262\u3067\u6b63\u898f\u5316\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

                          \u30b9\u30ad\u30fc\u30de\u6574\u5408\u6027\u306b\u3064\u3044\u3066\u306e\u6700\u7d42\u7684\u306a\u8003\u5bdf \ud83d\udca1<\/h2>\n

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