{"id":6550,"date":"2026-02-05T09:29:47","date_gmt":"2026-02-05T01:29:47","guid":{"rendered":"https:\/\/guides.visual-paradigm.com\/ja\/streamlining-data-a-guide-to-database-normalization\/"},"modified":"2026-02-05T09:29:47","modified_gmt":"2026-02-05T01:29:47","slug":"streamlining-data-a-guide-to-database-normalization","status":"publish","type":"post","link":"https:\/\/guides.visual-paradigm.com\/ja\/streamlining-data-a-guide-to-database-normalization\/","title":{"rendered":"\u30c7\u30fc\u30bf\u306e\u6700\u9069\u5316\uff1a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6b63\u898f\u5316\u306e\u30ac\u30a4\u30c9"},"content":{"rendered":"<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u4e16\u754c\u3067\u306f\u3001\u52b9\u7387\u6027\u3068\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u304c\u6700\u3082\u91cd\u8981\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6b63\u898f\u5316\u306f\u3001\u30c7\u30fc\u30bf\u306e\u6df7\u6c8c\u3092\u6574\u7406\u3057\u3001\u91cd\u8907\u3092\u6e1b\u3089\u3057\u3001\u60c5\u5831\u306e\u4e00\u8cab\u6027\u3092\u4fdd\u3064\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u3053\u306e\u5305\u62ec\u7684\u306a\u30ac\u30a4\u30c9\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6b63\u898f\u5316\u306e\u57fa\u672c\u7684\u306a\u30b9\u30c6\u30c3\u30d7\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\u307e\u305a\u6982\u5ff5\u306e\u57fa\u672c\u7684\u306a\u7406\u89e3\u304b\u3089\u59cb\u3081\u3001\u5f90\u3005\u306b\u7b2c\u4e09\u6b63\u898f\u5f62\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306e\u8a73\u7d30\u306a\u624b\u7d9a\u304d\u306b\u9032\u307f\u307e\u3059\u3002\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u306e\u6700\u5f8c\u307e\u3067\u306b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u4fdd\u5b88\u6027\u3092\u6700\u9069\u5316\u3059\u308b\u305f\u3081\u306e\u77e5\u8b58\u3068\u30b9\u30ad\u30eb\u3092\u8eab\u306b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6b63\u898f\u5316\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h2>\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6b63\u898f\u5316\u306f\u3001\u30c7\u30fc\u30bf\u306e\u91cd\u8907\u3092\u6e1b\u3089\u3057\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u3001\u95a2\u4fc2\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8a2d\u8a08\u3068\u69cb\u9020\u5316\u306b\u7528\u3044\u3089\u308c\u308b\u4f53\u7cfb\u7684\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u30c7\u30fc\u30bf\u304c\u52b9\u7387\u7684\u306b\u4fdd\u5b58\u30fb\u66f4\u65b0\u30fb\u7167\u4f1a\u3067\u304d\u308b\u3088\u3046\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b9\u30ad\u30fc\u30de\u3092\u69cb\u9020\u5316\u3059\u308b\u4e00\u65b9\u3067\u3001\u7570\u5e38\u3084\u30a8\u30e9\u30fc\u306e\u767a\u751f\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u76ee\u7684\u3067\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6b63\u898f\u5316\u306e\u4e3b\u306a\u76ee\u7684\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<ol>\n<li>\u30c7\u30fc\u30bf\u306e\u91cd\u8907\u3092\u6392\u9664\u3059\u308b\uff1a\u52b9\u7387\u7684\u306a\u30c7\u30fc\u30bf\u69cb\u9020\u306b\u3088\u308a\u3001\u540c\u3058\u30c7\u30fc\u30bf\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u3067\u8907\u6570\u306e\u5834\u6240\u306b\u4fdd\u5b58\u3059\u308b\u5fc5\u8981\u304c\u6e1b\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30b9\u30c8\u30ec\u30fc\u30b8\u30b9\u30da\u30fc\u30b9\u306e\u7bc0\u7d04\u3060\u3051\u3067\u306a\u304f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5168\u4f53\u3067\u30c7\u30fc\u30bf\u306e\u4e00\u8cab\u6027\u304c\u4fdd\u305f\u308c\u307e\u3059\u3002<\/li>\n<li>\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u5f37\u5316\u3059\u308b\uff1a\u6b63\u898f\u5316\u306b\u3088\u308a\u3001\u66f4\u65b0\u7570\u5e38\uff08\u30c7\u30fc\u30bf\u306e\u4e0d\u6574\u5408\u306a\u66f4\u65b0\uff09\u3001\u633f\u5165\u7570\u5e38\uff08\u65b0\u3057\u3044\u30c7\u30fc\u30bf\u306e\u633f\u5165\u306e\u56f0\u96e3\uff09\u3001\u524a\u9664\u7570\u5e38\uff08\u610f\u56f3\u3057\u306a\u3044\u30c7\u30fc\u30bf\u306e\u524a\u9664\uff09\u306a\u3069\u306e\u7570\u5e38\u306e\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u306e\u6b63\u78ba\u6027\u3068\u4e00\u8cab\u6027\u3092\u7dad\u6301\u3057\u307e\u3059\u3002<\/li>\n<li>\u30c7\u30fc\u30bf\u7ba1\u7406\u3092\u7c21\u7d20\u5316\u3059\u308b\uff1a\u9069\u5207\u306b\u6b63\u898f\u5316\u3055\u308c\u305f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u3001\u4fdd\u5b88\u3084\u5909\u66f4\u304c\u5bb9\u6613\u3067\u3059\u3002\u30ec\u30b3\u30fc\u30c9\u306e\u8ffd\u52a0\u30fb\u66f4\u65b0\u30fb\u524a\u9664\u306e\u30d7\u30ed\u30bb\u30b9\u304c\u7c21\u7d20\u5316\u3055\u308c\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u4f5c\u696d\u304c\u3088\u308a\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u6b63\u898f\u5316\u306f\u901a\u5e38\u3001\u30c6\u30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\u30b5\u30ea\u30f3\u30b8\u30e3\u30fc<\/td>\n<td>\u30d5\u30a3\u30af\u30b7\u30e7\u30f3<\/td>\n<td>1951<\/td>\n<td>978-0316769488<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>\u300e\u30db\u30d3\u30c3\u30c8\u300f<\/td>\n<td>J.R.R. \u30c8\u30fc\u30eb\u30ad\u30f3<\/td>\n<td>\u30d5\u30a1\u30f3\u30bf\u30b8\u30fc<\/td>\n<td>1937<\/td>\n<td>978-0547928227<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u306e\u8868\u306b\u306f\u3044\u304f\u3064\u304b\u306e\u91cd\u8907\u304c\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u8457\u8005\u3084\u30b8\u30e3\u30f3\u30eb\u306e\u60c5\u5831\u304c\u3001\u5404\u66f8\u7c4d\u3054\u3068\u306b\u7e70\u308a\u8fd4\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u6b63\u898f\u5316\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u59cb\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u30b9\u30c6\u30c3\u30d71\uff1a\u7b2c\u4e00\u6b63\u898f\u5f62\uff081NF\uff09<\/strong><\/p>\n<p>\u7b2c\u4e00\u6b63\u898f\u5f62\u3067\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u5404\u5217\u304c\u539f\u5b50\u7684\uff08\u5206\u5272\u3067\u304d\u306a\u3044\uff09\u306a\u5024\u306e\u307f\u3092\u542b\u3080\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306b\u3001\u95a2\u9023\u3059\u308b\u30c7\u30fc\u30bf\u306b\u5bfe\u3057\u3066\u5225\u3005\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u8457\u8005\u7528\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\uff1a<\/li>\n<\/ol>\n<p><strong>\u8457\u8005\u30c6\u30fc\u30d6\u30eb\uff081NF\uff09\uff1a<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>\u8457\u8005ID<\/th>\n<th>\u8457\u8005<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>\u300eF. \u30b9\u30b3\u30c3\u30c8\u30fb\u30d5\u30a3\u30c3\u30c4\u30b8\u30a7\u30e9\u30eb\u30c9\u300f<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u30cf\u30fc\u30d1\u30fc\u30fb\u30ea\u30fc<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>J.D. \u30b5\u30ea\u30f3\u30b8\u30e3\u30fc<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>\u300cJ.R.R. \u30c8\u30fc\u30eb\u30ad\u30f3\u300d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ol start=\"2\">\n<li>\u30b8\u30e3\u30f3\u30eb\u7528\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\uff1a<\/li>\n<\/ol>\n<p><strong>\u30b8\u30e3\u30f3\u30eb\u30c6\u30fc\u30d6\u30eb\uff081NF\uff09\uff1a<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>\u30b8\u30e3\u30f3\u30ebID<\/th>\n<th>\u30b8\u30e3\u30f3\u30eb<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>\u300c\u30d5\u30a3\u30af\u30b7\u30e7\u30f3\u300d<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u300c\u30d5\u30a1\u30f3\u30bf\u30b8\u30fc\u300d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ol start=\"3\">\n<li>Books\u30c6\u30fc\u30d6\u30eb\u3092Authors\u30c6\u30fc\u30d6\u30eb\u3068Genres\u30c6\u30fc\u30d6\u30eb\u3092\u53c2\u7167\u3059\u308b\u3088\u3046\u306b\u5909\u66f4\u3059\u308b\uff1a<\/li>\n<\/ol>\n<p><strong>Books\u30c6\u30fc\u30d6\u30eb\uff081NF\uff09\uff1a<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>BookID<\/th>\n<th>\u30bf\u30a4\u30c8\u30eb<\/th>\n<th>\u8457\u8005ID<\/th>\n<th>\u30b8\u30e3\u30f3\u30ebID<\/th>\n<th>\u5e74<\/th>\n<th>ISBN<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>\u300c\u30b0\u30ec\u30fc\u30c8\u30fb\u30ae\u30e3\u30c4\u30d3\u30fc\u300d<\/td>\n<td>1<\/td>\n<td>1<\/td>\n<td>1925<\/td>\n<td>978-0743273565<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u300c\u30de\u30c3\u30b3\u30a4\u3092\u6bba\u3059\u306a\u300d<\/td>\n<td>2<\/td>\n<td>1<\/td>\n<td>1960<\/td>\n<td>978-0061120084<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>\u300e\u30e9\u30a4\u30a2\u30f3\u30fb\u30b6\u30fb\u30ad\u30e3\u30c3\u30c1\u30e3\u30fc\u300f<\/td>\n<td>3<\/td>\n<td>1<\/td>\n<td>1951<\/td>\n<td>978-0316769488<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>\u300e\u30db\u30d3\u30c3\u30c8\u300f<\/td>\n<td>4<\/td>\n<td>2<\/td>\n<td>1937<\/td>\n<td>978-0547928227<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3055\u3066\u3001\u30c7\u30fc\u30bf\u306f\u7b2c\u4e00\u6b63\u898f\u5f62\u306b\u3042\u308a\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u5404\u5217\u304c\u539f\u5b50\u7684\u306a\u5024\u3092\u542b\u3093\u3067\u304a\u308a\u3001\u95a2\u9023\u3059\u308b\u30c7\u30fc\u30bf\u306b\u5bfe\u3057\u3066\u5225\u3005\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u305f\u304b\u3089\u3067\u3059\u3002<\/p>\n<p><strong>\u30b9\u30c6\u30c3\u30d72\uff1a\u7b2c\u4e8c\u6b63\u898f\u5f62\uff082NF\uff09<\/strong><\/p>\n<p>\u7b2c\u4e8c\u6b63\u898f\u5f62\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u975e\u30ad\u30fc\u5c5e\u6027\uff08\u5217\uff09\u304c\u4e3b\u30ad\u30fc\u306b\u5bfe\u3057\u3066\u5b8c\u5168\u306b\u95a2\u6570\u5f93\u5c5e\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u9054\u6210\u3059\u308b\u306b\u306f\uff1a<\/p>\n<ol>\n<li>Books\u30c6\u30fc\u30d6\u30eb\u306e\u4e3b\u30ad\u30fc\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001BookID\u3067\u3059\u3002<\/li>\n<li>\u66f8\u7c4d\u8457\u8005\u7528\u306e\u65b0\u3057\u3044\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\uff1a<\/li>\n<\/ol>\n<p><strong>BookAuthors\u30c6\u30fc\u30d6\u30eb\uff082NF\uff09\uff1a<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>BookID<\/th>\n<th>AuthorID<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>2<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>3<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ol start=\"3\">\n<li>Books\u30c6\u30fc\u30d6\u30eb\u3092\u5909\u66f4\u3057\u3066AuthorID\u5217\u3092\u524a\u9664\u3057\u307e\u3059\uff08\u73fe\u5728\u306fBookAuthors\u30c6\u30fc\u30d6\u30eb\u306b\u3042\u308a\u307e\u3059\uff09\uff1a<\/li>\n<\/ol>\n<p><strong>Books\u30c6\u30fc\u30d6\u30eb\uff082NF\uff09\uff1a<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>\u66f8\u7c4dID<\/th>\n<th>\u30bf\u30a4\u30c8\u30eb<\/th>\n<th>\u30b8\u30e3\u30f3\u30ebID<\/th>\n<th>\u5e74<\/th>\n<th>ISBN<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>\u300c\u30b0\u30ec\u30fc\u30c8\u30fb\u30ae\u30e3\u30c4\u30d3\u30fc\u300d<\/td>\n<td>1<\/td>\n<td>1925<\/td>\n<td>978-0743273565<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u300c\u30de\u30c3\u30b3\u30a4\u3092\u6bba\u3059\u306a\u300d<\/td>\n<td>1<\/td>\n<td>1960<\/td>\n<td>978-0061120084<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>\u300c\u30e9\u30a4\u9ea6\u7551\u306e\u5b88\u308a\u4eba\u300d<\/td>\n<td>1<\/td>\n<td>1951<\/td>\n<td>978-0316769488<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>\u300c\u30cf\u30d3\u30c3\u30c8\u300d<\/td>\n<td>2<\/td>\n<td>1937<\/td>\n<td>978-0547928227<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u73fe\u5728\u3001\u30c7\u30fc\u30bf\u306f\u7b2c\u4e8c\u6b63\u898f\u5f62\u306b\u3042\u308a\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u3059\u3079\u3066\u306e\u975e\u30ad\u30fc\u5c5e\u6027\u304c\u4e3b\u30ad\u30fc\u306b\u5b8c\u5168\u95a2\u6570\u5f93\u5c5e\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p><strong>\u30b9\u30c6\u30c3\u30d73\uff1a\u7b2c\u4e09\u6b63\u898f\u5f62\uff083NF\uff09<\/strong><\/p>\n<p>\u7b2c\u4e09\u6b63\u898f\u5f62\u3067\u306f\u3001\u975e\u30ad\u30fc\u5c5e\u6027\u9593\u306e\u63a8\u79fb\u7684\u4f9d\u5b58\u95a2\u4fc2\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306b\uff1a<\/p>\n<ol>\n<li>Books\u30c6\u30fc\u30d6\u30eb\u306e\u4e3b\u30ad\u30fc\u3092\u7279\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u4f9d\u7136\u3068\u3057\u3066BookID\u3067\u3059\u3002<\/li>\n<li>\u66f8\u7c4d\u30b8\u30e3\u30f3\u30eb\u7528\u306e\u65b0\u3057\u3044\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\uff1a<\/li>\n<\/ol>\n<p><strong>BookGenres \u30c6\u30fc\u30d6\u30eb (3NF):<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>BookID<\/th>\n<th>GenreID<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>2<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ol start=\"3\">\n<li>Books \u30c6\u30fc\u30d6\u30eb\u3092\u5909\u66f4\u3057\u3066 GenreID \u5217\u3092\u524a\u9664\u3059\u308b\uff08\u73fe\u5728\u306f BookGenres \u30c6\u30fc\u30d6\u30eb\u306b\u3042\u308a\u307e\u3059\uff09\uff1a<\/li>\n<\/ol>\n<p><strong>Books \u30c6\u30fc\u30d6\u30eb (3NF):<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>BookID<\/th>\n<th>\u30bf\u30a4\u30c8\u30eb<\/th>\n<th>\u5e74<\/th>\n<th>ISBN<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>\u300c\u30b0\u30ec\u30fc\u30c8\u30fb\u30ae\u30e3\u30c4\u30d3\u30fc\u300d<\/td>\n<td>1925<\/td>\n<td>978-0743273565<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>\u300c\u30de\u30c3\u30ad\u30f3\u30d0\u30fc\u30c9\u3092\u6bba\u3059\u300d<\/td>\n<td>1960<\/td>\n<td>978-0061120084<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>\u300c\u30e9\u30a4\u9ea6\u7551\u3067\u3064\u304b\u307e\u3048\u3066\u300d<\/td>\n<td>1951<\/td>\n<td>978-0316769488<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>\u300e\u30db\u30d3\u30c3\u30c8\u300f<\/td>\n<td>1937<\/td>\n<td>978-0547928227<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u73fe\u5728\u3001\u30c7\u30fc\u30bf\u306f\u7b2c\u4e09\u6b63\u898f\u5f62\u306b\u3042\u308a\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u975e\u30ad\u30fc\u5c5e\u6027\u9593\u306b\u306f\u63a8\u79fb\u7684\u4f9d\u5b58\u95a2\u4fc2\u304c\u306a\u3044\u304b\u3089\u3067\u3059\u3002<\/p>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u672c\u66f8\u300e\u30c7\u30fc\u30bf\u306e\u6700\u9069\u5316\uff1a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6b63\u898f\u5316\u30ac\u30a4\u30c9\u300f\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6b63\u898f\u5316\u306e\u30d7\u30ed\u30bb\u30b9\u306b\u3064\u3044\u3066\u30b9\u30c6\u30c3\u30d7\u30d0\u30a4\u30b9\u30c6\u30c3\u30d7\u3067\u89e3\u8aac\u3059\u308b\u30ac\u30a4\u30c9\u3067\u3059\u3002\u6982\u5ff5\u306e\u7d39\u4ecb\u304b\u3089\u59cb\u3081\u3001\u6b63\u898f\u5316\u304c\u30c7\u30fc\u30bf\u306e\u91cd\u8907\u3092\u524a\u6e1b\u3057\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u3064\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\u56f3\u66f8\u9928\u306e\u66f8\u7c4d\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u5b9f\u969b\u306e\u4f8b\u3068\u3057\u3066\u53d6\u308a\u4e0a\u3052\u3001\u7b2c\u4e00\u6b63\u898f\u5f62\uff081NF\uff09\u3001\u7b2c\u4e8c\u6b63\u898f\u5f62\uff082NF\uff09\u3001\u7b2c\u4e09\u6b63\u898f\u5f62\uff083NF\uff09\u3092\u9054\u6210\u3059\u308b\u305f\u3081\u306e\u624b\u9806\u3092\u4e01\u5be7\u306b\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3053\u306e\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u3092\u7d42\u3048\u308b\u9803\u306b\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u52b9\u7387\u7684\u306b\u6574\u7406\u3057\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u5411\u4e0a\u3068\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u5bb9\u6613\u3055\u3092\u5b9f\u73fe\u3059\u308b\u65b9\u6cd5\u3092\u78ba\u5b9f\u306b\u7406\u89e3\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u00a0<\/p>\n<p>\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b 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\u7b2c\u4e09\u6b63\u898f\u5f62\uff083NF\uff09\uff1a2NF\u3092\u62e1\u5f35\u3057\u3001\u63a8\u79fb\u7684\u4f9d\u5b58\u3092\u6392\u9664\u3059\u308b\u3053\u3068\u3067\u3001\u975e\u30ad\u30fc\u5c5e\u6027\u304c\u4ed6\u306e\u975e\u30ad\u30fc\u5c5e\u6027\u306b\u4f9d\u5b58\u3059\u308b\u3088\u3046\u306a\u72b6\u6cc1\u304c\u767a\u751f\u3057\u306a\u3044\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002 3NF\u3092\u8d85\u3048\u308b<a href=\"https:\/\/guides.visual-paradigm.com\/ja\/streamlining-data-a-guide-to-database-normalization\/\" rel=\"bookmark\"><span class=\"screen-reader-text\">\u30c7\u30fc\u30bf\u306e\u6700\u9069\u5316\uff1a\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6b63\u898f\u5316\u306e\u30ac\u30a4\u30c9<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_title":"","_yoast_wpseo_metadesc":"","_eb_attr":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[17],"tags":[],"class_list":["post-6550","post","type-post","status-publish","format-standard","hentry","category-data-modeling-database"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - 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