![\"Kawaii-style](\"https:\/\/www.we-notes.com\/wp-content\/uploads\/2026\/04\/erd-notations-kawaii-comparison-infographic.jpg\"\/)
<\/figure>\n<\/div>\n\ud83c\udfdb\ufe0f \u30c1\u30a7\u30f3\u8a18\u6cd5\uff1a\u6b74\u53f2\u7684\u57fa\u76e4<\/h2>\n
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\n- \n
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\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8868\u8a18\u6cd5\u306f\u3001SQL DDL\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306b\u76f4\u63a5\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3053\u3068\u3092\u6700\u9069\u5316\u3057\u3066\u3044\u308b\u3002\u30b9\u30ad\u30fc\u30de\u3092\u8a18\u8ff0\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u3053\u308c\u306f\u304a\u305d\u3089\u304f\u3042\u306a\u305f\u304c\u4f7f\u7528\u3057\u3066\u3044\u308b\u8996\u899a\u7684\u8a00\u8a9e\u3067\u3042\u308b\u3002<\/p>\n
\n- \n
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\u95a2\u4fc2\uff1a<\/strong>\u65b9\u5411\u3068\u7a2e\u985e\u3092\u793a\u3059\u305f\u3081\u306b\u3001\u7279\u5b9a\u306e\u77e2\u5370\u982d\u3092\u6301\u3064\u7dda\u3067\u30af\u30e9\u30b9\u3092\u7d50\u3076\u3002<\/p>\n<\/li>\n- \n
\u95a2\u9023\uff1a<\/strong>\u5358\u7d14\u306a\u7dda\u3002\u95a2\u4fc2\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3092\u793a\u3059\u3002<\/p>\n<\/li>\n- \n
\u96c6\u7d04\uff1a<\/strong>\u4e00\u65b9\u306e\u7aef\u306b\u7a7a\u6d1e\u306e\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\u3002\u90e8\u54c1\u304c\u72ec\u7acb\u3057\u3066\u5b58\u5728\u3067\u304d\u308b\u300c\u5168\u4f53-\u90e8\u5206\u300d\u95a2\u4fc2\u3092\u793a\u3059\u3002<\/p>\n<\/li>\n- \n
\u7d50\u5408:<\/strong>\u5857\u308a\u3064\u3076\u3055\u308c\u305f\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u3002\u5b8c\u5168\u306a\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u4f9d\u5b58\u95a2\u4fc2\u3092\u793a\u3059\u3002\u5168\u4f53\u304c\u6b7b\u306c\u3068\u3001\u90e8\u5206\u3082\u6b7b\u306c\u3002<\/p>\n<\/li>\n- \n
\u591a\u91cd\u5ea6:<\/strong>\u7dda\u306e\u7aef\u306b\u914d\u7f6e\u3055\u308c\u308b\u6570\u5024\uff08\u4f8b\uff1a0..1\u30011..*\u30010..*\uff09\u3002\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5\u3068\u6a5f\u80fd\u7684\u306b\u985e\u4f3c\u3057\u3066\u3044\u308b\u304c\u3001\u6570\u5b66\u8a18\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n\u5f37\u307f\u3068\u4f7f\u7528\u4f8b<\/h3>\n
\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u552f\u4e00\u306e\u7126\u70b9\u3067\u306a\u3044\u5834\u5408\u3001UML\u30af\u30e9\u30b9\u56f3\u306f\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b3\u30fc\u30c9\u3068\u6c38\u7d9a\u7684\u30b9\u30c8\u30ec\u30fc\u30b8\u5c64\u306e\u9593\u306e\u63a5\u7d9a\u90e8\u5206\u3092\u62c5\u3046\u3002<\/p>\n
\n- \n
ORM\u30de\u30c3\u30d4\u30f3\u30b0:<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30de\u30c3\u30d1\u30fc\uff08ORM\uff09\u306f\u3001\u30af\u30e9\u30b9\u3092\u30c6\u30fc\u30d6\u30eb\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001UML\u30b9\u30bf\u30a4\u30eb\u306e\u95a2\u4fc2\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002<\/p>\n<\/li>\n- \n
\u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3:<\/strong>\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c1\u30fc\u30e0\u304c\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u3064\u3044\u3066\u4e00\u81f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001UML\u306f\u5171\u901a\u306e\u7528\u8a9e\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/p>\n<\/li>\n- \n
\u8907\u96d1\u306a\u95a2\u4fc2:<\/strong>UML\u306f\u3001\u7d14\u7c8b\u306a\u95a2\u4fc2\u7684\u8a18\u6cd5\u3088\u308a\u3082\u7d99\u627f\u3001\u4e00\u822c\u5316\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5b9f\u88c5\u3092\u3088\u308a\u9069\u5207\u306b\u6271\u3048\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n\u6b20\u70b9\u306f\u5197\u9577\u6027\u3067\u3042\u308b\u3002\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5\u306b\u304a\u3051\u308b\u5358\u7d14\u306a\u30c6\u30fc\u30d6\u30eb\u95a2\u4fc2\u304c\u3001UML\u3067\u306f\u30af\u30e9\u30b9\u5b9a\u7fa9\u304c\u8907\u96d1\u306b\u306a\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u81ea\u4f53\u306b\u95a2\u4fc2\u306e\u306a\u3044\u30e1\u30bd\u30c3\u30c9\u3084\u5c5e\u6027\u3092\u542b\u3080\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u304c\u3042\u308b\u3002\u3053\u306e\u305f\u3081\u3001\u56f3\u3092\u5358\u306b\u30b9\u30ad\u30fc\u30de\u751f\u6210\u7528\u306b\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u6df7\u4e71\u3092\u62db\u304f\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n
\ud83d\udcca \u6bd4\u8f03\u8868<\/h2>\n
\u610f\u601d\u6c7a\u5b9a\u3092\u5bb9\u6613\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u3053\u308c\u3089\u306e\u8a18\u6cd5\u304c\u7279\u5b9a\u306e\u30e2\u30c7\u30ea\u30f3\u30b0\u30b7\u30ca\u30ea\u30aa\u3092\u3069\u306e\u3088\u3046\u306b\u6271\u3046\u304b\u3092\u8aac\u660e\u3059\u308b\u3002<\/p>\n
\n\n \n\n\n\u7279\u5fb4<\/p>\n<\/th>\n
\n\u30c1\u30a7\u30f3\u8a18\u6cd5<\/p>\n<\/th>\n
\n\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5<\/p>\n<\/th>\n
\nUML\u30af\u30e9\u30b9\u56f3<\/p>\n<\/th>\n<\/tr>\n
\n\n\u4e3b\u306a\u5bfe\u8c61\u8005<\/strong><\/p>\n<\/td>\n\n\u30d3\u30b8\u30cd\u30b9\u30a2\u30ca\u30ea\u30b9\u30c8\u3001\u5b66\u8853\u95a2\u4fc2\u8005<\/p>\n<\/td>\n
\nDBA\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2<\/p>\n<\/td>\n
\n\u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u958b\u767a\u8005\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c8<\/p>\n<\/td>\n<\/tr>\n
\n\n\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u8868\u73fe<\/strong><\/p>\n<\/td>\n\n\u9577\u65b9\u5f62<\/p>\n<\/td>\n
\n\u9577\u65b9\u5f62\uff08\u30c6\u30fc\u30d6\u30eb\uff09<\/p>\n<\/td>\n
\n\u30af\u30e9\u30b9\u30dc\u30c3\u30af\u30b9\uff08\u540d\u524d\/\u30d7\u30ed\u30d1\u30c6\u30a3\/\u30e1\u30bd\u30c3\u30c9\uff09<\/p>\n<\/td>\n<\/tr>\n
\n\n\u95a2\u4fc2\u306e\u8868\u73fe<\/strong><\/p>\n<\/td>\n\n\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9<\/p>\n<\/td>\n
\n\u8a18\u53f7\u4ed8\u304d\u306e\u7dda<\/p>\n<\/td>\n
\n\u77e2\u5370\u307e\u305f\u306f\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\u4ed8\u304d\u306e\u7dda<\/p>\n<\/td>\n<\/tr>\n
\n\n\u57fa\u6570\u8868\u8a18<\/strong><\/p>\n<\/td>\n\n\u30e9\u30d9\u30eb (1, N, M)<\/p>\n<\/td>\n
\n\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\uff0b\u30d0\u30fc\uff0f\u30b5\u30fc\u30af\u30eb<\/p>\n<\/td>\n
\n\u6570\u5b66\u7684\u8868\u8a18 (0..1, *)<\/p>\n<\/td>\n<\/tr>\n
\n\nNull\u8a31\u5bb9\u6027\u306e\u8868\u793a<\/strong><\/p>\n<\/td>\n\n\u6697\u9ed9\u7684\u307e\u305f\u306f\u30c6\u30ad\u30b9\u30c8<\/p>\n<\/td>\n
\n\u660e\u793a\u7684\uff08\u30b5\u30fc\u30af\u30eb\uff1d\u30aa\u30d7\u30b7\u30e7\u30f3\uff09<\/p>\n<\/td>\n
\n\u660e\u793a\u7684\uff08\u591a\u91cd\u6027\uff09<\/p>\n<\/td>\n<\/tr>\n
\n\n\u6700\u3082\u9069\u3057\u3066\u3044\u308b\u5206\u91ce<\/strong><\/p>\n<\/td>\n\n\u6982\u5ff5\u30e2\u30c7\u30eb<\/p>\n<\/td>\n
\n\u8ad6\u7406\uff0f\u7269\u7406\u30e2\u30c7\u30eb<\/p>\n<\/td>\n
\n\u5b9f\u88c5\u30e2\u30c7\u30eb<\/p>\n<\/td>\n<\/tr>\n
\n\n\u8907\u96d1\u3055<\/strong><\/p>\n<\/td>\n\n3\u9805\u30ea\u30f3\u30af\u3067\u306f\u9ad8<\/p>\n<\/td>\n
\n\u4e2d\u7a0b\u5ea6<\/p>\n<\/td>\n
\n\u7d99\u627f\u3067\u306f\u9ad8<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\ud83d\udd0d \u30b9\u30bf\u30c3\u30af\u306b\u9069\u3057\u305f\u8868\u8a18\u6cd5\u306e\u9078\u629e<\/h2>\n
\u552f\u4e00\u306e\u300c\u6700\u826f\u300d\u306e\u8868\u8a18\u6cd5\u306f\u5b58\u5728\u3057\u306a\u3044\u3002\u9069\u5207\u306a\u9078\u629e\u306f\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u6bb5\u968e\u3068\u95a2\u4e0e\u3059\u308b\u6280\u8853\u306b\u4f9d\u5b58\u3059\u308b\u3002<\/p>\n
\u30b7\u30ca\u30ea\u30aa1\uff1a\u7d14\u7c8b\u306a\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30a6\u30a7\u30a2\u30cf\u30a6\u30b9<\/h3>\n
SQL\u30c6\u30fc\u30d6\u30eb\u3068\u30af\u30a8\u30ea\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5b8c\u5168\u306b\u6ce8\u529b\u3059\u308b\u30c7\u30fc\u30bf\u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u3084\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30b7\u30b9\u30c6\u30e0\u3092\u8a2d\u8a08\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u306f\u6700\u3082\u52b9\u7387\u7684\u306a\u9078\u629e\u3067\u3042\u308b\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6982\u5ff5\u306b\u95a2\u3059\u308b\u8a8d\u77e5\u7684\u8ca0\u8377\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u5236\u7d04\u306e\u660e\u78ba\u3055\u3092\u6700\u5927\u5316\u3059\u308b\u3002\u958b\u767a\u8005\u304c\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u56f3\u3092\u898b\u305f\u3068\u304d\u3001\u3069\u306e\u5916\u90e8\u30ad\u30fc\u3092\u66f8\u3051\u3070\u3088\u3044\u304b\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3067\u304d\u308b\u3002<\/p>\n
\n- \n
\u6ce8\u76ee\u70b9\uff1a<\/strong>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3068\u30af\u30a8\u30ea\u901f\u5ea6\u3002<\/p>\n<\/li>\n- \n
\u63a8\u5968\u4e8b\u9805\uff1a<\/strong>\u7269\u7406\u30b9\u30ad\u30fc\u30de\u5c64\u306b\u306f\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n\u30b7\u30ca\u30ea\u30aa2\uff1a\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3068\u30c9\u30e1\u30a4\u30f3\u99c6\u52d5\u8a2d\u8a08<\/h3>\n
\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u306f\u3001\u30c1\u30fc\u30e0\u304c\u3057\u3070\u3057\u3070\u5883\u754c\u4ed8\u304d\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u4e0a\u3067\u4f5c\u696d\u3059\u308b\u3002\u3053\u3053\u3067\u306fUML\u30af\u30e9\u30b9\u56f3\u304c\u3001\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u5883\u754c\u3092\u5b9a\u7fa9\u3059\u308b\u306e\u306b\u4fa1\u5024\u304c\u3042\u308b\u3002\u4e00\u3064\u306e\u30b5\u30fc\u30d3\u30b9\u5185\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u5225\u306e\u30b5\u30fc\u30d3\u30b9\u5185\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u3069\u306e\u3088\u3046\u306b\u95a2\u4fc2\u3057\u3066\u3044\u308b\u304b\u3092\u53ef\u8996\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u3001\u76f4\u63a5\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7d50\u5408\u3067\u306f\u306a\u304fAPI\u5951\u7d04\u3092\u901a\u3058\u3066\u95a2\u4fc2\u304c\u6210\u308a\u7acb\u3064\u3053\u3068\u304c\u591a\u3044\u3002<\/p>\n
\n- \n
\u6ce8\u76ee\u70b9\uff1a<\/strong>\u30b5\u30fc\u30d3\u30b9\u306e\u5883\u754c\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30de\u30c3\u30d4\u30f3\u30b0\u3002<\/p>\n<\/li>\n- \n
\u63a8\u5968\u4e8b\u9805\uff1a<\/strong> \u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30eb\u306b\u306fUML\u3092\u4f7f\u7528\u3057\u3001\u7279\u5b9a\u306e\u30b5\u30fc\u30d3\u30b9\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7528\u306bCrow\u2019s Foot\u306b\u5909\u63db\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n\u30b7\u30ca\u30ea\u30aa3\uff1a\u30ec\u30ac\u30b7\u30fc\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u76e3\u67fb<\/h3>\n
\u65e2\u5b58\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u76e3\u67fb\u3059\u308b\u5834\u5408\u3084\u3001\u30ec\u30ac\u30b7\u30fc\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u79fb\u884c\u3059\u308b\u969b\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306bChen\u8a18\u6cd5\u304c\u73fe\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u6b63\u78ba\u306a\u79fb\u884c\u306e\u305f\u3081\u306b\u3053\u308c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u3084\u6955\u5186\u3092\u73fe\u4ee3\u306e\u30c6\u30fc\u30d6\u30eb\u69cb\u9020\u306b\u623b\u3059\u80fd\u529b\u304c\u6c42\u3081\u3089\u308c\u308b\u3002<\/p>\n
\n- \n
\u6ce8\u76ee\u70b9\uff1a<\/strong>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u4fdd\u6301\u3002<\/p>\n<\/li>\n- \n
\u63a8\u5968\u4e8b\u9805\uff1a<\/strong> \u5b9f\u88c5\u306e\u305f\u3081\u306bChen\u8a18\u6cd5\u3092Crow\u2019s Foot\u306b\u5909\u63db\u3057\u3001\u53c2\u7167\u7528\u306b\u5143\u306eChen\u8a18\u6cd5\u3092\u4fdd\u6301\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n\ud83d\udee0\ufe0f \u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n
\u9078\u629e\u3057\u305f\u8a18\u6cd5\u306b\u95a2\u308f\u3089\u305a\u3001\u4fdd\u5b88\u53ef\u80fd\u3067\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u3044\u304f\u3064\u304b\u306e\u539f\u5247\u304c\u666e\u904d\u7684\u306b\u9069\u7528\u3055\u308c\u308b\u3002<\/p>\n
\n- \n
\u4e00\u8cab\u6027\u304c\u9375\uff1a<\/strong> \u540c\u3058\u6587\u66f8\u5185\u3067\u8a18\u6cd5\u3092\u6df7\u5728\u3055\u305b\u3066\u306f\u306a\u3089\u306a\u3044\u3002Crow\u2019s Foot\u3067\u59cb\u3081\u305f\u3089\u3001\u6700\u5f8c\u307e\u3067Crow\u2019s Foot\u3067\u7d42\u308f\u3089\u305b\u308b\u3002\u9014\u4e2d\u3067\u5207\u308a\u66ff\u3048\u308b\u3068\u3001\u7279\u5b9a\u306e\u8a18\u53f7\u304c\u4f55\u3092\u610f\u5473\u3059\u308b\u306e\u304b\u304c\u6df7\u4e71\u3059\u308b\u3002<\/p>\n<\/li>\n- \n
\u547d\u540d\u898f\u5247\uff1a<\/strong> \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304a\u3088\u3073\u5c5e\u6027\u540d\u304c\u56f3\u5168\u4f53\u3067\u4e00\u8cab\u3057\u305fsnake_case\u307e\u305f\u306fcamelCase\u306e\u6a19\u6e96\u306b\u5f93\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002”Data”\u3084”Info”\u306e\u3088\u3046\u306a\u66d6\u6627\u306a\u540d\u524d\u306f\u8d64\u4fe1\u53f7\u3067\u3042\u308b\u3002<\/p>\n<\/li>\n- \n
\u6b63\u898f\u5316\uff1a<\/strong> \u56f3\u3092\u6700\u7d42\u5316\u3059\u308b\u524d\u306b\u3001\u6b63\u898f\u5316\u30eb\u30fc\u30eb\uff083NF\u307e\u305f\u306fBCNF\u307e\u3067\uff09\u3092\u9069\u7528\u3059\u308b\u3002\u6b63\u898f\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u56f3\u306f\u3001\u91cd\u8907\u3068\u66f4\u65b0\u7570\u5e38\u3092\u5f15\u304d\u8d77\u3053\u3059\u3002<\/p>\n<\/li>\n- \n
\u5236\u7d04\u306e\u6587\u66f8\u5316\uff1a<\/strong> \u30e6\u30cb\u30fc\u30af\u5236\u7d04\u3068\u30c1\u30a7\u30c3\u30af\u5236\u7d04\u3092\u660e\u78ba\u306b\u6587\u66f8\u5316\u3059\u308b\u3002\u8996\u899a\u7684\u306a\u8a18\u53f7\u306f\u95a2\u4fc2\u3092\u793a\u3059\u304c\u3001\u30c6\u30ad\u30b9\u30c8\u306e\u6ce8\u8a18\u304c\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3092\u660e\u78ba\u306b\u3059\u308b\u5834\u5408\u304c\u591a\u3044\u3002<\/p>\n<\/li>\n- \n
\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\uff1a<\/strong> ER\u56f3\u3092\u30b3\u30fc\u30c9\u3068\u3057\u3066\u6271\u3046\u3002\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u306b\u4fdd\u5b58\u3059\u308b\u3002\u30b9\u30ad\u30fc\u30de\u3078\u306e\u5909\u66f4\u306f\u30b3\u30fc\u30c9\u306e\u5909\u66f4\u3068\u540c\u69d8\u306b\u30ec\u30d3\u30e5\u30fc\u3059\u3079\u304d\u3067\u3042\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n\ud83d\udeab \u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74<\/h2>\n
\u7d4c\u9a13\u8c4a\u5bcc\u306a\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u3067\u3059\u3089\u3001\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u53ef\u8996\u5316\u3059\u308b\u969b\u306b\u8aa4\u308a\u3092\u72af\u3059\u3053\u3068\u304c\u3042\u308b\u3002\u3053\u308c\u3089\u306e\u4e00\u822c\u7684\u306a\u8aa4\u308a\u306b\u6c17\u3065\u3044\u3066\u3044\u308c\u3070\u3001\u958b\u767a\u4e2d\u306b\u5927\u5e45\u306a\u6642\u9593\u3092\u7bc0\u7d04\u3067\u304d\u308b\u3002<\/p>\n
1. null\u8a31\u5bb9\u6027\u3092\u7121\u8996\u3059\u308b<\/h3>\n
\u5186\u3084\u30d0\u30fc\u306e\u306a\u3044\u95a2\u4fc2\u7dda\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3092\u610f\u5473\u3059\u308b\u304c\u3001\u30c4\u30fc\u30eb\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u3002\u5916\u90e8\u30ad\u30fc\u304cnull\u3092\u8a31\u5bb9\u3059\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u5e38\u306b\u660e\u793a\u7684\u306b\u8a18\u8ff0\u3059\u308b\u3079\u304d\u3067\u3042\u308b\u3002Crow\u2019s Foot\u3067\u306f\u5186\u3067\u8868\u3055\u308c\u3001UML\u3067\u306f\u591a\u91cd\u5ea60..1\u3067\u8868\u3055\u308c\u308b\u3002\u4eee\u5b9a\u3059\u308b\u3053\u3068\u306f\u5371\u967a\u306a\u7fd2\u6163\u3067\u3042\u308b\u3002<\/p>\n
2. 3\u9805\u95a2\u4fc2\u306e\u904e\u5270\u30e2\u30c7\u30ea\u30f3\u30b0<\/h3>\n
Chen\u8a18\u6cd5\u306f3\u9805\u95a2\u4fc2\u3092\u3046\u307e\u304f\u6271\u3048\u308b\u304c\u3001\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u305d\u308c\u3089\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u30023\u3064\u306e\u30c6\u30fc\u30d6\u30eb\u9593\u306e\u95a2\u4fc2\u306f\u901a\u5e38\u30012\u9805\u95a2\u4fc2\u307e\u305f\u306f\u95a2\u9023\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5206\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u76f4\u63a5\u7684\u306a3\u65b9\u5411\u30ea\u30f3\u30af\u3092\u30e2\u30c7\u30ea\u30f3\u30b0\u3059\u308b\u3068\u3001\u5b9f\u88c5\u4e0a\u306e\u554f\u984c\u304c\u751f\u3058\u308b\u3002<\/p>\n
3. \u96c6\u7d04\u3068\u69cb\u6210\u306e\u6df7\u540c<\/h3>\n
UML\u3067\u306f\u3001\u7a7a\u6d1e\u306e\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u3068\u5857\u308a\u3064\u3076\u3055\u308c\u305f\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u306e\u9055\u3044\u306f\u91cd\u8981\u3067\u3042\u308b\u3002\u7a7a\u6d1e\u306e\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u306f\u5b50\u304c\u89aa\u306a\u3057\u3067\u5b58\u5728\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3001\u5857\u308a\u3064\u3076\u3055\u308c\u305f\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u306f\u305d\u3046\u3067\u306f\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u3002\u3053\u308c\u3089\u3092\u6df7\u540c\u3059\u308b\u3068\u3001\u5b50\u30ec\u30b3\u30fc\u30c9\u304c\u8aa4\u3063\u3066\u524a\u9664\u3055\u308c\u305f\u308a\u3001\u6b63\u3057\u304f\u6c38\u7d9a\u5316\u3055\u308c\u306a\u304b\u3063\u305f\u308a\u3059\u308b\u30c7\u30fc\u30bf\u30aa\u30e9\u30f3\u30c8\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u3002<\/p>\n
4. \u5186\u74b0\u4f9d\u5b58<\/h3>\n
Table A\u304cTable B\u3092\u53c2\u7167\u3057\u3001Table B\u304cTable A\u3092\u53c2\u7167\u3059\u308b\u5834\u5408\u3001\u5186\u74b0\u53c2\u7167\u304c\u767a\u751f\u3059\u308b\u3002\u305f\u3068\u3048\u3070\u968e\u5c64\u69cb\u9020\u306a\u3069\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u6b63\u5f53\u306a\u5834\u5408\u3082\u3042\u308b\u304c\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3084\u30ea\u30b9\u30c8\u30a2\u3092\u8907\u96d1\u306b\u3059\u308b\u3002\u4f5c\u6210\u9806\u5e8f\u306e\u30a8\u30e9\u30fc\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u56f3\u3067\u4f9d\u5b58\u95a2\u4fc2\u306e\u65b9\u5411\u3092\u660e\u78ba\u306b\u793a\u3059\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n
5. \u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u306e\u7121\u8996<\/h3>\n
\u73fe\u4ee3\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u8ad6\u7406\u524a\u9664\uff08\u884c\u3092\u524a\u9664\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u3068\u3057\u3066\u30de\u30fc\u30af\u3059\u308b\uff09\u304c\u3057\u3070\u3057\u3070\u5fc5\u8981\u3068\u306a\u308b\u3002\u56f3\u3067\u306f\u3001`deleted_at` \u307e\u305f\u306f `is_active` \u5217\u304c\u3069\u3053\u306b\u3042\u308b\u304b\u3092\u793a\u3059\u3079\u304d\u3067\u3042\u308b\u3002\u3053\u308c\u306f\u7269\u7406\u30b9\u30ad\u30fc\u30de\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u8ad6\u7406\u7684\u306a\u5909\u66f4\u3067\u3042\u308b\u3002<\/p>\n
\ud83d\udd04 \u8868\u8a18\u6cd5\u306e\u5207\u308a\u66ff\u3048<\/h2>\n
\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u8a08\u753b\u306b\u30c1\u30a7\u30f3\u8a18\u6cd5\u3092\u7528\u3044\u3001\u5b9f\u88c5\u306b\u969b\u3057\u3066\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5\u306b\u79fb\u884c\u3059\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3042\u308b\u3002\u3053\u308c\u3089\u9593\u306e\u5bfe\u5fdc\u95a2\u4fc2\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u79fb\u884c\u4e2d\u306b\u30c7\u30fc\u30bf\u6574\u5408\u6027\u304c\u4fdd\u305f\u308c\u308b\u3002<\/p>\n
\n- \n
\u30c1\u30a7\u30f3\u304b\u3089\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u3078\uff1a<\/strong>\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u3092\u7dda\u306b\u5909\u63db\u3059\u308b\u3002\u30e9\u30d9\u30eb\uff081\u3001N\uff09\u3092\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u53f7\u306b\u5909\u63db\u3059\u308b\u3002\u5143\u306e\u8a2d\u8a08\u304c\u793a\u5506\u3059\u308b\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u306b\u57fa\u3065\u3044\u3066\u3001\u30e2\u30c0\u30ea\u30c6\u30a3\u30d0\u30fc\uff0f\u30b5\u30fc\u30af\u30eb\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n<\/li>\n- \n
UML\u304b\u3089\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u3078\uff1a<\/strong>\u30af\u30e9\u30b9\u306e\u64cd\u4f5c\uff08\u30e1\u30bd\u30c3\u30c9\uff09\u3092\u524a\u9664\u3059\u308b\u3002\u96c6\u7d04\uff0f\u7d44\u6210\u306e\u7dda\u3092\u6a19\u6e96\u7684\u306a\u5916\u90e8\u30ad\u30fc\u306b\u7c21\u7565\u5316\u3059\u308b\u3002\u591a\u91cd\u6027\u306e\u8868\u8a18\u3092\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u53f7\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\u3059\u308b\u3002<\/p>\n<\/li>\n- \n
\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u304b\u3089UML\u3078\uff1a<\/strong>\u30af\u30e9\u30b9\u30dc\u30c3\u30af\u30b9\u69cb\u9020\u3092\u8ffd\u52a0\u3059\u308b\u3002\u95a2\u4fc2\u7dda\u3092\u95a2\u9023\u77e2\u5370\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3002\u30c7\u30fc\u30bf\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306b\u57fa\u3065\u3044\u3066\u3001\u95a2\u4fc2\u304c\u96c6\u7d04\u304b\u7d44\u6210\u304b\u3092\u5224\u65ad\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n\ud83d\udcdd \u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u6700\u7d42\u7684\u306a\u8003\u5bdf<\/h2>\n
\u8868\u8a18\u6cd5\u306e\u9078\u629e\u306f\u5358\u306a\u308b\u7f8e\u89b3\u306e\u554f\u984c\u3067\u306f\u306a\u3044\u3002\u305d\u308c\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u3069\u306e\u3088\u3046\u306b\u7406\u89e3\u3055\u308c\u3001\u69cb\u7bc9\u3055\u308c\u308b\u304b\u3092\u898f\u5b9a\u3059\u308b\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u30c4\u30fc\u30eb\u3067\u3042\u308b\u3002\u30c1\u30a7\u30f3\u306f\u6982\u5ff5\u7684\u306a\u660e\u78ba\u3055\u3092\u63d0\u4f9b\u3057\u3001\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u306f\u95a2\u4fc2\u7684\u7cbe\u5ea6\u3092\u3001UML\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u7d71\u5408\u3092\u5b9f\u73fe\u3059\u308b\u3002<\/p>\n
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IE\uff08\u60c5\u5831\u5de5\u5b66\uff09\u8a18\u6cd5\u3068\u3057\u3066\u3082\u77e5\u3089\u308c\u308b\u30af\u30ed\u30fc\u306e\u8db3\u8a18\u6cd5\u306f\u300120\u4e16\u7d00\u5f8c\u534a\u306b\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u306e\u4e8b\u5b9f\u4e0a\u306e\u6a19\u6e96\u3068\u306a\u3063\u305f\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u8005\u3084\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u5b9f\u7528\u7684\u3067\u3042\u308b\u3002\u540d\u79f0\u306f\u3001\u95a2\u4fc2\u306e\u300c\u591a\u6570\u300d\u5074\u3092\u8868\u3059\u305f\u3081\u306b\u4f7f\u308f\u308c\u308b\u5f62\u72b6\u304c\u30ab\u30e9\u30b9\u306e\u8db3\u306b\u4f3c\u3066\u3044\u308b\u3053\u3068\u306b\u7531\u6765\u3059\u308b\u3002<\/p>\n 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\u53c2\u52a0\u306e\u53ef\u5426\uff1a<\/strong>\u30d0\u30fc\uff08|\uff09\u306f\u5fc5\u9808\u53c2\u52a0\uff08\u5b58\u5728\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\uff09\u3092\u793a\u3057\u3001\u5186\uff08o\uff09\u306f\u4efb\u610f\u53c2\u52a0\uff08null\u3067\u3082\u3088\u3044\uff09\u3092\u793a\u3059\u3002<\/p>\n<\/li>\n \u4e3b\u30ad\u30fc\uff1a<\/strong>\u901a\u5e38\u3001\u30ad\u30fc\u306e\u30a2\u30a4\u30b3\u30f3\u307e\u305f\u306f\u5c5e\u6027\u306e\u96a3\u306b\u7279\u5b9a\u306e\u30c6\u30ad\u30b9\u30c8\u6ce8\u8a18\u3067\u793a\u3055\u308c\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n \u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8868\u8a18\u6cd5\u306f\u3001SQL DDL\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306b\u76f4\u63a5\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3053\u3068\u3092\u6700\u9069\u5316\u3057\u3066\u3044\u308b\u3002\u30b9\u30ad\u30fc\u30de\u3092\u8a18\u8ff0\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u3053\u308c\u306f\u304a\u305d\u3089\u304f\u3042\u306a\u305f\u304c\u4f7f\u7528\u3057\u3066\u3044\u308b\u8996\u899a\u7684\u8a00\u8a9e\u3067\u3042\u308b\u3002<\/p>\n \u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\uff1a<\/strong>PostgreSQL\u3001MySQL\u3001SQL Server\u306a\u3069\u306eSQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u304a\u3051\u308b\u5916\u90e8\u30ad\u30fc\u3068\u4e3b\u30ad\u30fc\u306b\u660e\u78ba\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3055\u308c\u308b\u3002<\/p>\n<\/li>\n \u30b9\u30ad\u30fc\u30de\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\uff1a<\/strong>\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30c1\u30fc\u30e0\u5185\u306e\u6280\u8853\u6587\u66f8\u4f5c\u6210\u306b\u304a\u3051\u308b\u696d\u754c\u6a19\u6e96\u3067\u3042\u308b\u3002<\/p>\n<\/li>\n \u30c7\u30fc\u30bf\u6574\u5408\u6027\u306e\u660e\u78ba\u3055\uff1a<\/strong>\u30d0\u30fc\u3068\u5186\u306e\u4f7f\u7528\u306b\u3088\u308a\u3001null\u8a31\u5bb9\u5236\u7d04\u304c\u660e\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30ed\u30b8\u30c3\u30af\u306b\u3068\u3063\u3066\u91cd\u8981\u3067\u3042\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n \u3053\u306e\u8868\u8a18\u6cd5\u306f\u30c1\u30a7\u30f3\u8a18\u6cd5\u3088\u308a\u3082\u62bd\u8c61\u5ea6\u304c\u4f4e\u3044\u3002\u30c6\u30fc\u30d6\u30eb\u3068\u5916\u90e8\u30ad\u30fc\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u524d\u63d0\u3068\u3057\u3066\u3044\u308b\u3002\u305d\u306e\u305f\u3081\u3001\u4e0a\u4f4d\u306e\u30d3\u30b8\u30cd\u30b9\u4f1a\u8b70\u306b\u306f\u3042\u307e\u308a\u9069\u3055\u306a\u3044\u304c\u3001\u6280\u8853\u7684\u306a\u30b9\u30d7\u30ea\u30f3\u30c8\u8a08\u753b\u306b\u306f\u7406\u60f3\u7684\u3067\u3042\u308b\u3002<\/p>\n \u7d71\u5408\u30e2\u30c7\u30eb\u5316\u8a00\u8a9e\uff08UML\uff09\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30d1\u30e9\u30c0\u30a4\u30e0\u306b\u308f\u305f\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u8a2d\u8a08\u3092\u6a19\u6e96\u5316\u3059\u308b\u305f\u3081\u306b\u958b\u767a\u3055\u308c\u305f\u3002UML\u306b\u306f\u591a\u304f\u306e\u56f3\u5f62\u5f0f\u304c\u3042\u308b\u304c\u3001\u30af\u30e9\u30b9\u56f3\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u6587\u8108\u306b\u304a\u3051\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30e2\u30c7\u30ea\u30f3\u30b0\u306b\u6700\u3082\u3088\u304f\u4f7f\u308f\u308c\u308b\u3002\u30b3\u30fc\u30c9\u69cb\u9020\u3068\u30c7\u30fc\u30bf\u69cb\u9020\u306e\u9593\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u308b\u3002<\/p>\n \u30af\u30e9\u30b9\uff1a<\/strong>\u4e09\u3064\u306e\u30bb\u30af\u30b7\u30e7\u30f3\uff08\u540d\u524d\u3001\u5c5e\u6027\u3001\u64cd\u4f5c\uff08\u30e1\u30bd\u30c3\u30c9\uff09\uff09\u306b\u5206\u3051\u3089\u308c\u305f\u9577\u65b9\u5f62\u3002<\/p>\n<\/li>\n \u95a2\u4fc2\uff1a<\/strong>\u65b9\u5411\u3068\u7a2e\u985e\u3092\u793a\u3059\u305f\u3081\u306b\u3001\u7279\u5b9a\u306e\u77e2\u5370\u982d\u3092\u6301\u3064\u7dda\u3067\u30af\u30e9\u30b9\u3092\u7d50\u3076\u3002<\/p>\n<\/li>\n \u95a2\u9023\uff1a<\/strong>\u5358\u7d14\u306a\u7dda\u3002\u95a2\u4fc2\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3092\u793a\u3059\u3002<\/p>\n<\/li>\n \u96c6\u7d04\uff1a<\/strong>\u4e00\u65b9\u306e\u7aef\u306b\u7a7a\u6d1e\u306e\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\u3002\u90e8\u54c1\u304c\u72ec\u7acb\u3057\u3066\u5b58\u5728\u3067\u304d\u308b\u300c\u5168\u4f53-\u90e8\u5206\u300d\u95a2\u4fc2\u3092\u793a\u3059\u3002<\/p>\n<\/li>\n \u7d50\u5408:<\/strong>\u5857\u308a\u3064\u3076\u3055\u308c\u305f\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u3002\u5b8c\u5168\u306a\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u4f9d\u5b58\u95a2\u4fc2\u3092\u793a\u3059\u3002\u5168\u4f53\u304c\u6b7b\u306c\u3068\u3001\u90e8\u5206\u3082\u6b7b\u306c\u3002<\/p>\n<\/li>\n \u591a\u91cd\u5ea6:<\/strong>\u7dda\u306e\u7aef\u306b\u914d\u7f6e\u3055\u308c\u308b\u6570\u5024\uff08\u4f8b\uff1a0..1\u30011..*\u30010..*\uff09\u3002\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5\u3068\u6a5f\u80fd\u7684\u306b\u985e\u4f3c\u3057\u3066\u3044\u308b\u304c\u3001\u6570\u5b66\u8a18\u6cd5\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n \u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u552f\u4e00\u306e\u7126\u70b9\u3067\u306a\u3044\u5834\u5408\u3001UML\u30af\u30e9\u30b9\u56f3\u306f\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30b3\u30fc\u30c9\u3068\u6c38\u7d9a\u7684\u30b9\u30c8\u30ec\u30fc\u30b8\u5c64\u306e\u9593\u306e\u63a5\u7d9a\u90e8\u5206\u3092\u62c5\u3046\u3002<\/p>\n ORM\u30de\u30c3\u30d4\u30f3\u30b0:<\/strong>\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30de\u30c3\u30d1\u30fc\uff08ORM\uff09\u306f\u3001\u30af\u30e9\u30b9\u3092\u30c6\u30fc\u30d6\u30eb\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u65b9\u6cd5\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001UML\u30b9\u30bf\u30a4\u30eb\u306e\u95a2\u4fc2\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002<\/p>\n<\/li>\n \u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3:<\/strong>\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30c1\u30fc\u30e0\u304c\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u3064\u3044\u3066\u4e00\u81f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001UML\u306f\u5171\u901a\u306e\u7528\u8a9e\u3092\u63d0\u4f9b\u3059\u308b\u3002<\/p>\n<\/li>\n \u8907\u96d1\u306a\u95a2\u4fc2:<\/strong>UML\u306f\u3001\u7d14\u7c8b\u306a\u95a2\u4fc2\u7684\u8a18\u6cd5\u3088\u308a\u3082\u7d99\u627f\u3001\u4e00\u822c\u5316\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5b9f\u88c5\u3092\u3088\u308a\u9069\u5207\u306b\u6271\u3048\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n \u6b20\u70b9\u306f\u5197\u9577\u6027\u3067\u3042\u308b\u3002\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5\u306b\u304a\u3051\u308b\u5358\u7d14\u306a\u30c6\u30fc\u30d6\u30eb\u95a2\u4fc2\u304c\u3001UML\u3067\u306f\u30af\u30e9\u30b9\u5b9a\u7fa9\u304c\u8907\u96d1\u306b\u306a\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u81ea\u4f53\u306b\u95a2\u4fc2\u306e\u306a\u3044\u30e1\u30bd\u30c3\u30c9\u3084\u5c5e\u6027\u3092\u542b\u3080\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u304c\u3042\u308b\u3002\u3053\u306e\u305f\u3081\u3001\u56f3\u3092\u5358\u306b\u30b9\u30ad\u30fc\u30de\u751f\u6210\u7528\u306b\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u6df7\u4e71\u3092\u62db\u304f\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n \u610f\u601d\u6c7a\u5b9a\u3092\u5bb9\u6613\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u3053\u308c\u3089\u306e\u8a18\u6cd5\u304c\u7279\u5b9a\u306e\u30e2\u30c7\u30ea\u30f3\u30b0\u30b7\u30ca\u30ea\u30aa\u3092\u3069\u306e\u3088\u3046\u306b\u6271\u3046\u304b\u3092\u8aac\u660e\u3059\u308b\u3002<\/p>\n \u7279\u5fb4<\/p>\n<\/th>\n \u30c1\u30a7\u30f3\u8a18\u6cd5<\/p>\n<\/th>\n \u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5<\/p>\n<\/th>\n UML\u30af\u30e9\u30b9\u56f3<\/p>\n<\/th>\n<\/tr>\n \u4e3b\u306a\u5bfe\u8c61\u8005<\/strong><\/p>\n<\/td>\n \u30d3\u30b8\u30cd\u30b9\u30a2\u30ca\u30ea\u30b9\u30c8\u3001\u5b66\u8853\u95a2\u4fc2\u8005<\/p>\n<\/td>\n DBA\u3001\u30d0\u30c3\u30af\u30a8\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2<\/p>\n<\/td>\n \u30d5\u30eb\u30b9\u30bf\u30c3\u30af\u958b\u767a\u8005\u3001\u30a2\u30fc\u30ad\u30c6\u30af\u30c8<\/p>\n<\/td>\n<\/tr>\n \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u8868\u73fe<\/strong><\/p>\n<\/td>\n \u9577\u65b9\u5f62<\/p>\n<\/td>\n \u9577\u65b9\u5f62\uff08\u30c6\u30fc\u30d6\u30eb\uff09<\/p>\n<\/td>\n \u30af\u30e9\u30b9\u30dc\u30c3\u30af\u30b9\uff08\u540d\u524d\/\u30d7\u30ed\u30d1\u30c6\u30a3\/\u30e1\u30bd\u30c3\u30c9\uff09<\/p>\n<\/td>\n<\/tr>\n \u95a2\u4fc2\u306e\u8868\u73fe<\/strong><\/p>\n<\/td>\n \u30c0\u30a4\u30a2\u30e2\u30f3\u30c9<\/p>\n<\/td>\n \u8a18\u53f7\u4ed8\u304d\u306e\u7dda<\/p>\n<\/td>\n \u77e2\u5370\u307e\u305f\u306f\u30c0\u30a4\u30e4\u30e2\u30f3\u30c9\u4ed8\u304d\u306e\u7dda<\/p>\n<\/td>\n<\/tr>\n \u57fa\u6570\u8868\u8a18<\/strong><\/p>\n<\/td>\n \u30e9\u30d9\u30eb (1, N, M)<\/p>\n<\/td>\n \u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\uff0b\u30d0\u30fc\uff0f\u30b5\u30fc\u30af\u30eb<\/p>\n<\/td>\n \u6570\u5b66\u7684\u8868\u8a18 (0..1, *)<\/p>\n<\/td>\n<\/tr>\n Null\u8a31\u5bb9\u6027\u306e\u8868\u793a<\/strong><\/p>\n<\/td>\n \u6697\u9ed9\u7684\u307e\u305f\u306f\u30c6\u30ad\u30b9\u30c8<\/p>\n<\/td>\n \u660e\u793a\u7684\uff08\u30b5\u30fc\u30af\u30eb\uff1d\u30aa\u30d7\u30b7\u30e7\u30f3\uff09<\/p>\n<\/td>\n \u660e\u793a\u7684\uff08\u591a\u91cd\u6027\uff09<\/p>\n<\/td>\n<\/tr>\n \u6700\u3082\u9069\u3057\u3066\u3044\u308b\u5206\u91ce<\/strong><\/p>\n<\/td>\n \u6982\u5ff5\u30e2\u30c7\u30eb<\/p>\n<\/td>\n \u8ad6\u7406\uff0f\u7269\u7406\u30e2\u30c7\u30eb<\/p>\n<\/td>\n \u5b9f\u88c5\u30e2\u30c7\u30eb<\/p>\n<\/td>\n<\/tr>\n \u8907\u96d1\u3055<\/strong><\/p>\n<\/td>\n 3\u9805\u30ea\u30f3\u30af\u3067\u306f\u9ad8<\/p>\n<\/td>\n \u4e2d\u7a0b\u5ea6<\/p>\n<\/td>\n \u7d99\u627f\u3067\u306f\u9ad8<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u552f\u4e00\u306e\u300c\u6700\u826f\u300d\u306e\u8868\u8a18\u6cd5\u306f\u5b58\u5728\u3057\u306a\u3044\u3002\u9069\u5207\u306a\u9078\u629e\u306f\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u6bb5\u968e\u3068\u95a2\u4e0e\u3059\u308b\u6280\u8853\u306b\u4f9d\u5b58\u3059\u308b\u3002<\/p>\n SQL\u30c6\u30fc\u30d6\u30eb\u3068\u30af\u30a8\u30ea\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5b8c\u5168\u306b\u6ce8\u529b\u3059\u308b\u30c7\u30fc\u30bf\u30a6\u30a7\u30a2\u30cf\u30a6\u30b9\u3084\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u30b7\u30b9\u30c6\u30e0\u3092\u8a2d\u8a08\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u306f\u6700\u3082\u52b9\u7387\u7684\u306a\u9078\u629e\u3067\u3042\u308b\u3002\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6982\u5ff5\u306b\u95a2\u3059\u308b\u8a8d\u77e5\u7684\u8ca0\u8377\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u5236\u7d04\u306e\u660e\u78ba\u3055\u3092\u6700\u5927\u5316\u3059\u308b\u3002\u958b\u767a\u8005\u304c\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u56f3\u3092\u898b\u305f\u3068\u304d\u3001\u3069\u306e\u5916\u90e8\u30ad\u30fc\u3092\u66f8\u3051\u3070\u3088\u3044\u304b\u3092\u6b63\u78ba\u306b\u628a\u63e1\u3067\u304d\u308b\u3002<\/p>\n \u6ce8\u76ee\u70b9\uff1a<\/strong>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3068\u30af\u30a8\u30ea\u901f\u5ea6\u3002<\/p>\n<\/li>\n \u63a8\u5968\u4e8b\u9805\uff1a<\/strong>\u7269\u7406\u30b9\u30ad\u30fc\u30de\u5c64\u306b\u306f\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n \u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3067\u306f\u3001\u30c1\u30fc\u30e0\u304c\u3057\u3070\u3057\u3070\u5883\u754c\u4ed8\u304d\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u4e0a\u3067\u4f5c\u696d\u3059\u308b\u3002\u3053\u3053\u3067\u306fUML\u30af\u30e9\u30b9\u56f3\u304c\u3001\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u5883\u754c\u3092\u5b9a\u7fa9\u3059\u308b\u306e\u306b\u4fa1\u5024\u304c\u3042\u308b\u3002\u4e00\u3064\u306e\u30b5\u30fc\u30d3\u30b9\u5185\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304c\u5225\u306e\u30b5\u30fc\u30d3\u30b9\u5185\u306e\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3068\u3069\u306e\u3088\u3046\u306b\u95a2\u4fc2\u3057\u3066\u3044\u308b\u304b\u3092\u53ef\u8996\u5316\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u3001\u76f4\u63a5\u7684\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7d50\u5408\u3067\u306f\u306a\u304fAPI\u5951\u7d04\u3092\u901a\u3058\u3066\u95a2\u4fc2\u304c\u6210\u308a\u7acb\u3064\u3053\u3068\u304c\u591a\u3044\u3002<\/p>\n \u6ce8\u76ee\u70b9\uff1a<\/strong>\u30b5\u30fc\u30d3\u30b9\u306e\u5883\u754c\u3068\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u30de\u30c3\u30d4\u30f3\u30b0\u3002<\/p>\n<\/li>\n \u63a8\u5968\u4e8b\u9805\uff1a<\/strong> \u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30eb\u306b\u306fUML\u3092\u4f7f\u7528\u3057\u3001\u7279\u5b9a\u306e\u30b5\u30fc\u30d3\u30b9\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7528\u306bCrow\u2019s Foot\u306b\u5909\u63db\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n \u65e2\u5b58\u306e\u30b7\u30b9\u30c6\u30e0\u3092\u76e3\u67fb\u3059\u308b\u5834\u5408\u3084\u3001\u30ec\u30ac\u30b7\u30fc\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u304b\u3089\u79fb\u884c\u3059\u308b\u969b\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306bChen\u8a18\u6cd5\u304c\u73fe\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u6b63\u78ba\u306a\u79fb\u884c\u306e\u305f\u3081\u306b\u3053\u308c\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u3084\u6955\u5186\u3092\u73fe\u4ee3\u306e\u30c6\u30fc\u30d6\u30eb\u69cb\u9020\u306b\u623b\u3059\u80fd\u529b\u304c\u6c42\u3081\u3089\u308c\u308b\u3002<\/p>\n \u6ce8\u76ee\u70b9\uff1a<\/strong>\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306e\u4fdd\u6301\u3002<\/p>\n<\/li>\n \u63a8\u5968\u4e8b\u9805\uff1a<\/strong> \u5b9f\u88c5\u306e\u305f\u3081\u306bChen\u8a18\u6cd5\u3092Crow\u2019s Foot\u306b\u5909\u63db\u3057\u3001\u53c2\u7167\u7528\u306b\u5143\u306eChen\u8a18\u6cd5\u3092\u4fdd\u6301\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n \u9078\u629e\u3057\u305f\u8a18\u6cd5\u306b\u95a2\u308f\u3089\u305a\u3001\u4fdd\u5b88\u53ef\u80fd\u3067\u30b9\u30b1\u30fc\u30e9\u30d6\u30eb\u306a\u30b7\u30b9\u30c6\u30e0\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u3044\u304f\u3064\u304b\u306e\u539f\u5247\u304c\u666e\u904d\u7684\u306b\u9069\u7528\u3055\u308c\u308b\u3002<\/p>\n \u4e00\u8cab\u6027\u304c\u9375\uff1a<\/strong> \u540c\u3058\u6587\u66f8\u5185\u3067\u8a18\u6cd5\u3092\u6df7\u5728\u3055\u305b\u3066\u306f\u306a\u3089\u306a\u3044\u3002Crow\u2019s Foot\u3067\u59cb\u3081\u305f\u3089\u3001\u6700\u5f8c\u307e\u3067Crow\u2019s Foot\u3067\u7d42\u308f\u3089\u305b\u308b\u3002\u9014\u4e2d\u3067\u5207\u308a\u66ff\u3048\u308b\u3068\u3001\u7279\u5b9a\u306e\u8a18\u53f7\u304c\u4f55\u3092\u610f\u5473\u3059\u308b\u306e\u304b\u304c\u6df7\u4e71\u3059\u308b\u3002<\/p>\n<\/li>\n \u547d\u540d\u898f\u5247\uff1a<\/strong> \u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u304a\u3088\u3073\u5c5e\u6027\u540d\u304c\u56f3\u5168\u4f53\u3067\u4e00\u8cab\u3057\u305fsnake_case\u307e\u305f\u306fcamelCase\u306e\u6a19\u6e96\u306b\u5f93\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002”Data”\u3084”Info”\u306e\u3088\u3046\u306a\u66d6\u6627\u306a\u540d\u524d\u306f\u8d64\u4fe1\u53f7\u3067\u3042\u308b\u3002<\/p>\n<\/li>\n \u6b63\u898f\u5316\uff1a<\/strong> \u56f3\u3092\u6700\u7d42\u5316\u3059\u308b\u524d\u306b\u3001\u6b63\u898f\u5316\u30eb\u30fc\u30eb\uff083NF\u307e\u305f\u306fBCNF\u307e\u3067\uff09\u3092\u9069\u7528\u3059\u308b\u3002\u6b63\u898f\u5316\u3055\u308c\u3066\u3044\u306a\u3044\u56f3\u306f\u3001\u91cd\u8907\u3068\u66f4\u65b0\u7570\u5e38\u3092\u5f15\u304d\u8d77\u3053\u3059\u3002<\/p>\n<\/li>\n \u5236\u7d04\u306e\u6587\u66f8\u5316\uff1a<\/strong> \u30e6\u30cb\u30fc\u30af\u5236\u7d04\u3068\u30c1\u30a7\u30c3\u30af\u5236\u7d04\u3092\u660e\u78ba\u306b\u6587\u66f8\u5316\u3059\u308b\u3002\u8996\u899a\u7684\u306a\u8a18\u53f7\u306f\u95a2\u4fc2\u3092\u793a\u3059\u304c\u3001\u30c6\u30ad\u30b9\u30c8\u306e\u6ce8\u8a18\u304c\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u3092\u660e\u78ba\u306b\u3059\u308b\u5834\u5408\u304c\u591a\u3044\u3002<\/p>\n<\/li>\n \u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\uff1a<\/strong> ER\u56f3\u3092\u30b3\u30fc\u30c9\u3068\u3057\u3066\u6271\u3046\u3002\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u306b\u4fdd\u5b58\u3059\u308b\u3002\u30b9\u30ad\u30fc\u30de\u3078\u306e\u5909\u66f4\u306f\u30b3\u30fc\u30c9\u306e\u5909\u66f4\u3068\u540c\u69d8\u306b\u30ec\u30d3\u30e5\u30fc\u3059\u3079\u304d\u3067\u3042\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n \u7d4c\u9a13\u8c4a\u5bcc\u306a\u30a2\u30fc\u30ad\u30c6\u30af\u30c8\u3067\u3059\u3089\u3001\u30c7\u30fc\u30bf\u69cb\u9020\u3092\u53ef\u8996\u5316\u3059\u308b\u969b\u306b\u8aa4\u308a\u3092\u72af\u3059\u3053\u3068\u304c\u3042\u308b\u3002\u3053\u308c\u3089\u306e\u4e00\u822c\u7684\u306a\u8aa4\u308a\u306b\u6c17\u3065\u3044\u3066\u3044\u308c\u3070\u3001\u958b\u767a\u4e2d\u306b\u5927\u5e45\u306a\u6642\u9593\u3092\u7bc0\u7d04\u3067\u304d\u308b\u3002<\/p>\n \u5186\u3084\u30d0\u30fc\u306e\u306a\u3044\u95a2\u4fc2\u7dda\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3092\u610f\u5473\u3059\u308b\u304c\u3001\u30c4\u30fc\u30eb\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u3002\u5916\u90e8\u30ad\u30fc\u304cnull\u3092\u8a31\u5bb9\u3059\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u5e38\u306b\u660e\u793a\u7684\u306b\u8a18\u8ff0\u3059\u308b\u3079\u304d\u3067\u3042\u308b\u3002Crow\u2019s Foot\u3067\u306f\u5186\u3067\u8868\u3055\u308c\u3001UML\u3067\u306f\u591a\u91cd\u5ea60..1\u3067\u8868\u3055\u308c\u308b\u3002\u4eee\u5b9a\u3059\u308b\u3053\u3068\u306f\u5371\u967a\u306a\u7fd2\u6163\u3067\u3042\u308b\u3002<\/p>\n Chen\u8a18\u6cd5\u306f3\u9805\u95a2\u4fc2\u3092\u3046\u307e\u304f\u6271\u3048\u308b\u304c\u3001\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u305d\u308c\u3089\u3092\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u30023\u3064\u306e\u30c6\u30fc\u30d6\u30eb\u9593\u306e\u95a2\u4fc2\u306f\u901a\u5e38\u30012\u9805\u95a2\u4fc2\u307e\u305f\u306f\u95a2\u9023\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306b\u5206\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u76f4\u63a5\u7684\u306a3\u65b9\u5411\u30ea\u30f3\u30af\u3092\u30e2\u30c7\u30ea\u30f3\u30b0\u3059\u308b\u3068\u3001\u5b9f\u88c5\u4e0a\u306e\u554f\u984c\u304c\u751f\u3058\u308b\u3002<\/p>\n UML\u3067\u306f\u3001\u7a7a\u6d1e\u306e\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u3068\u5857\u308a\u3064\u3076\u3055\u308c\u305f\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u306e\u9055\u3044\u306f\u91cd\u8981\u3067\u3042\u308b\u3002\u7a7a\u6d1e\u306e\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u306f\u5b50\u304c\u89aa\u306a\u3057\u3067\u5b58\u5728\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3001\u5857\u308a\u3064\u3076\u3055\u308c\u305f\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u306f\u305d\u3046\u3067\u306f\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u3002\u3053\u308c\u3089\u3092\u6df7\u540c\u3059\u308b\u3068\u3001\u5b50\u30ec\u30b3\u30fc\u30c9\u304c\u8aa4\u3063\u3066\u524a\u9664\u3055\u308c\u305f\u308a\u3001\u6b63\u3057\u304f\u6c38\u7d9a\u5316\u3055\u308c\u306a\u304b\u3063\u305f\u308a\u3059\u308b\u30c7\u30fc\u30bf\u30aa\u30e9\u30f3\u30c8\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3059\u3002<\/p>\n Table A\u304cTable B\u3092\u53c2\u7167\u3057\u3001Table B\u304cTable A\u3092\u53c2\u7167\u3059\u308b\u5834\u5408\u3001\u5186\u74b0\u53c2\u7167\u304c\u767a\u751f\u3059\u308b\u3002\u305f\u3068\u3048\u3070\u968e\u5c64\u69cb\u9020\u306a\u3069\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u6b63\u5f53\u306a\u5834\u5408\u3082\u3042\u308b\u304c\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3084\u30ea\u30b9\u30c8\u30a2\u3092\u8907\u96d1\u306b\u3059\u308b\u3002\u4f5c\u6210\u9806\u5e8f\u306e\u30a8\u30e9\u30fc\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u56f3\u3067\u4f9d\u5b58\u95a2\u4fc2\u306e\u65b9\u5411\u3092\u660e\u78ba\u306b\u793a\u3059\u3088\u3046\u306b\u3059\u308b\u3002<\/p>\n \u73fe\u4ee3\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u8ad6\u7406\u524a\u9664\uff08\u884c\u3092\u524a\u9664\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u975e\u30a2\u30af\u30c6\u30a3\u30d6\u3068\u3057\u3066\u30de\u30fc\u30af\u3059\u308b\uff09\u304c\u3057\u3070\u3057\u3070\u5fc5\u8981\u3068\u306a\u308b\u3002\u56f3\u3067\u306f\u3001`deleted_at` \u307e\u305f\u306f `is_active` \u5217\u304c\u3069\u3053\u306b\u3042\u308b\u304b\u3092\u793a\u3059\u3079\u304d\u3067\u3042\u308b\u3002\u3053\u308c\u306f\u7269\u7406\u30b9\u30ad\u30fc\u30de\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u8ad6\u7406\u7684\u306a\u5909\u66f4\u3067\u3042\u308b\u3002<\/p>\n \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u9ad8\u30ec\u30d9\u30eb\u306e\u8a08\u753b\u306b\u30c1\u30a7\u30f3\u8a18\u6cd5\u3092\u7528\u3044\u3001\u5b9f\u88c5\u306b\u969b\u3057\u3066\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u6cd5\u306b\u79fb\u884c\u3059\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3042\u308b\u3002\u3053\u308c\u3089\u9593\u306e\u5bfe\u5fdc\u95a2\u4fc2\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u79fb\u884c\u4e2d\u306b\u30c7\u30fc\u30bf\u6574\u5408\u6027\u304c\u4fdd\u305f\u308c\u308b\u3002<\/p>\n \u30c1\u30a7\u30f3\u304b\u3089\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u3078\uff1a<\/strong>\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u3092\u7dda\u306b\u5909\u63db\u3059\u308b\u3002\u30e9\u30d9\u30eb\uff081\u3001N\uff09\u3092\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u53f7\u306b\u5909\u63db\u3059\u308b\u3002\u5143\u306e\u8a2d\u8a08\u304c\u793a\u5506\u3059\u308b\u30d3\u30b8\u30cd\u30b9\u30eb\u30fc\u30eb\u306b\u57fa\u3065\u3044\u3066\u3001\u30e2\u30c0\u30ea\u30c6\u30a3\u30d0\u30fc\uff0f\u30b5\u30fc\u30af\u30eb\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n<\/li>\n UML\u304b\u3089\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u3078\uff1a<\/strong>\u30af\u30e9\u30b9\u306e\u64cd\u4f5c\uff08\u30e1\u30bd\u30c3\u30c9\uff09\u3092\u524a\u9664\u3059\u308b\u3002\u96c6\u7d04\uff0f\u7d44\u6210\u306e\u7dda\u3092\u6a19\u6e96\u7684\u306a\u5916\u90e8\u30ad\u30fc\u306b\u7c21\u7565\u5316\u3059\u308b\u3002\u591a\u91cd\u6027\u306e\u8868\u8a18\u3092\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u8a18\u53f7\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\u3059\u308b\u3002<\/p>\n<\/li>\n \u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u304b\u3089UML\u3078\uff1a<\/strong>\u30af\u30e9\u30b9\u30dc\u30c3\u30af\u30b9\u69cb\u9020\u3092\u8ffd\u52a0\u3059\u308b\u3002\u95a2\u4fc2\u7dda\u3092\u95a2\u9023\u77e2\u5370\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3002\u30c7\u30fc\u30bf\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u306b\u57fa\u3065\u3044\u3066\u3001\u95a2\u4fc2\u304c\u96c6\u7d04\u304b\u7d44\u6210\u304b\u3092\u5224\u65ad\u3059\u308b\u3002<\/p>\n<\/li>\n<\/ul>\n \u8868\u8a18\u6cd5\u306e\u9078\u629e\u306f\u5358\u306a\u308b\u7f8e\u89b3\u306e\u554f\u984c\u3067\u306f\u306a\u3044\u3002\u305d\u308c\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u3069\u306e\u3088\u3046\u306b\u7406\u89e3\u3055\u308c\u3001\u69cb\u7bc9\u3055\u308c\u308b\u304b\u3092\u898f\u5b9a\u3059\u308b\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u30c4\u30fc\u30eb\u3067\u3042\u308b\u3002\u30c1\u30a7\u30f3\u306f\u6982\u5ff5\u7684\u306a\u660e\u78ba\u3055\u3092\u63d0\u4f9b\u3057\u3001\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u306f\u95a2\u4fc2\u7684\u7cbe\u5ea6\u3092\u3001UML\u306f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u7d71\u5408\u3092\u5b9f\u73fe\u3059\u308b\u3002<\/p>\n \u30c1\u30fc\u30e0\u306e\u5c02\u9580\u6027\u3068\u30b7\u30b9\u30c6\u30e0\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u5408\u3063\u305f\u8868\u8a18\u6cd5\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u3067\u3001\u8aa4\u89e3\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3067\u304d\u308b\u3002\u3088\u304f\u6587\u66f8\u5316\u3055\u308c\u305f\u30b9\u30ad\u30fc\u30de\u306f\u3001\u30c7\u30fc\u30bf\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u9593\u306e\u5951\u7d04\u3068\u306a\u308b\u3002\u30c0\u30a4\u30a2\u30e2\u30f3\u30c9\u3001\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u3001\u30af\u30e9\u30b9\u30dc\u30c3\u30af\u30b9\u306e\u3044\u305a\u308c\u3092\u63cf\u3044\u3066\u3082\u3001\u76ee\u6a19\u306f\u540c\u3058\u3067\u3042\u308b\uff1a\u30c7\u30fc\u30bf\u306e\u5b89\u5b9a\u3057\u305f\u57fa\u76e4\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u3002<\/p>\n \u30e2\u30c7\u30ea\u30f3\u30b0\u30d5\u30a7\u30fc\u30ba\u306b\u6642\u9593\u3092\u6295\u8cc7\u3059\u308b\u3002\u56f3\u3092\u5909\u66f4\u3059\u308b\u30b3\u30b9\u30c8\u306f\u3001\u5c55\u958b\u3055\u308c\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u518d\u69cb\u7bc9\u30b3\u30b9\u30c8\u306b\u6bd4\u3079\u3066\u7121\u8996\u3067\u304d\u308b\u307b\u3069\u5c0f\u3055\u3044\u3002\u8996\u899a\u8a00\u8a9e\u3092\u8ce2\u304f\u9078\u629e\u3057\u3001\u3059\u3079\u3066\u306e\u30b9\u30c6\u30fc\u30af\u30db\u30eb\u30c0\u30fc\u304c\u540c\u3058\u65b9\u8a00\u3092\u8a71\u3059\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":" \u5805\u7262\u306a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u8a2d\u8a08\u3059\u308b\u306b\u306f\u3001\u3069\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u3069\u306e…<\/p>\n","protected":false},"author":1,"featured_media":80,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"ER\u56f3\u306e\u8868\u8a18\u6cd5\uff1a\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u3001UML\u3001\u30c1\u30a7\u30f3\u306e\u6bd4\u8f03","_yoast_wpseo_metadesc":"\u30af\u30ed\u30a6\u30ba\u30d5\u30c3\u30c8\u3001UML\u3001\u30c1\u30a7\u30f3\u306a\u3069\u306eER\u56f3\u8868\u8a18\u6cd5\u3092\u6bd4\u8f03\u3059\u308b\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a2d\u8a08\u3001\u30b9\u30ad\u30fc\u30de\u30e2\u30c7\u30ea\u30f3\u30b0\u3001\u30b9\u30bf\u30c3\u30af\u4e92\u63db\u6027\u306e\u5834\u9762\u3067\u305d\u308c\u305e\u308c\u4f55\u65f6\u306b\u4f7f\u7528\u3059\u3079\u304d\u304b\u3092\u5b66\u3076\u3002","inline_featured_image":false,"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[7],"tags":[8,13],"class_list":["post-79","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-erd","tag-academic","tag-erd"],"yoast_head":"\n\u5f37\u307f\u3068\u4f7f\u7528\u4f8b<\/h3>\n
\n
\ud83e\uddb5 \u30af\u30ed\u30fc\u306e\u8db3\u8a18\u6cd5\uff1a\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u6a19\u6e96<\/h2>\n
\u57fa\u672c\u69cb\u6587\u3068\u8996\u899a\u7684\u8981\u7d20<\/h3>\n
\n
\u5f37\u307f\u3068\u4f7f\u7528\u4f8b<\/h3>\n
\n
\ud83d\udcd0 UML\u30af\u30e9\u30b9\u56f3\uff1a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u6a4b\u6e21\u3057<\/h2>\n
\u57fa\u672c\u69cb\u6587\u3068\u8996\u899a\u7684\u8981\u7d20<\/h3>\n
\n
\u5f37\u307f\u3068\u4f7f\u7528\u4f8b<\/h3>\n
\n
\ud83d\udcca \u6bd4\u8f03\u8868<\/h2>\n
\n
\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \ud83d\udd0d \u30b9\u30bf\u30c3\u30af\u306b\u9069\u3057\u305f\u8868\u8a18\u6cd5\u306e\u9078\u629e<\/h2>\n
\u30b7\u30ca\u30ea\u30aa1\uff1a\u7d14\u7c8b\u306a\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30a6\u30a7\u30a2\u30cf\u30a6\u30b9<\/h3>\n
\n
\u30b7\u30ca\u30ea\u30aa2\uff1a\u30de\u30a4\u30af\u30ed\u30b5\u30fc\u30d3\u30b9\u3068\u30c9\u30e1\u30a4\u30f3\u99c6\u52d5\u8a2d\u8a08<\/h3>\n
\n
\u30b7\u30ca\u30ea\u30aa3\uff1a\u30ec\u30ac\u30b7\u30fc\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3068\u76e3\u67fb<\/h3>\n
\n
\ud83d\udee0\ufe0f \u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n
\n
\ud83d\udeab \u907f\u3051\u308b\u3079\u304d\u4e00\u822c\u7684\u306a\u843d\u3068\u3057\u7a74<\/h2>\n
1. null\u8a31\u5bb9\u6027\u3092\u7121\u8996\u3059\u308b<\/h3>\n
2. 3\u9805\u95a2\u4fc2\u306e\u904e\u5270\u30e2\u30c7\u30ea\u30f3\u30b0<\/h3>\n
3. \u96c6\u7d04\u3068\u69cb\u6210\u306e\u6df7\u540c<\/h3>\n
4. \u5186\u74b0\u4f9d\u5b58<\/h3>\n
5. \u30bd\u30d5\u30c8\u30c7\u30ea\u30fc\u30c8\u306e\u7121\u8996<\/h3>\n
\ud83d\udd04 \u8868\u8a18\u6cd5\u306e\u5207\u308a\u66ff\u3048<\/h2>\n
\n
\ud83d\udcdd \u30c7\u30fc\u30bf\u30e2\u30c7\u30ea\u30f3\u30b0\u306e\u6700\u7d42\u7684\u306a\u8003\u5bdf<\/h2>\n