{"id":1817,"date":"2025-11-27T16:09:29","date_gmt":"2025-11-27T16:09:29","guid":{"rendered":"https:\/\/hatarakinihongo.com\/?p=1817"},"modified":"2025-12-03T15:23:09","modified_gmt":"2025-12-03T15:23:09","slug":"database","status":"publish","type":"post","link":"https:\/\/hatarakinihongo.com\/?p=1817","title":{"rendered":"Database"},"content":{"rendered":"\n<figure class=\"wp-block-image aligncenter size-full is-style-default\" style=\"margin-top:15px;margin-bottom:15px\"><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" src=\"https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database_featured_img.png\" alt=\"Database\" class=\"wp-image-1818\" srcset=\"https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database_featured_img.png 1280w, https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database_featured_img-300x169.png 300w, https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database_featured_img-1024x576.png 1024w, https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database_featured_img-768x432.png 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/figure>\n\n\n\n<p class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-8959d5ffd2d51e9e64ea398c284eb59a wp-block-paragraph\" style=\"color:#323232;margin-top:15px\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08Database\uff09\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u306b\u304a\u3044\u3066\u6700\u3082\u57fa\u672c\u7684\u3067\u91cd\u8981\u306a\u6982\u5ff5\u306e\u4e00\u3064\u3067\u3059\u3002<br>\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n\n\n\n<p class=\"has-text-color has-link-color has-manrope-font-family wp-elements-1ad06bf5bca99bef38e15f29d2b592d5 wp-block-paragraph\" style=\"color:#323232;margin-top:15px\">Database hay c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u00e0 m\u1ed9t trong nh\u1eefng kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u00e0 quan tr\u1ecdng nh\u1ea5t trong ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. <br>V\u1eady database l\u00e0 g\u00ec? C\u01a1 s\u1edf d\u1eef li\u1ec7u l\u00e0 g\u00ec?<\/p>\n\n\n\n<p class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-d44be1cb2b2acd92224ee7e8b6cef830 wp-block-paragraph\" style=\"color:#323232;margin-top:15px\">\u7c21\u5358\u306b\u8a00\u3046\u3068\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306f\u3001\u60c5\u5831\u3092\u4fdd\u5b58\u30fb\u7ba1\u7406\u3057\u3001\u5fc5\u8981\u306a\u3068\u304d\u306b\u7c21\u5358\u306b\u691c\u7d22\u30fb\u66f4\u65b0\u30fb\u5171\u6709\u3067\u304d\u308b\u5834\u6240\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-text-color has-link-color has-manrope-font-family wp-elements-b9c371424487fe9fd5bc7ebcd8819037 wp-block-paragraph\" style=\"color:#323232;margin-top:15px\">N\u00f3i \u0111\u01a1n gi\u1ea3n, database l\u00e0 n\u01a1i l\u01b0u tr\u1eef v\u00e0 qu\u1ea3n l\u00fd th\u00f4ng tin, \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u00ecm ki\u1ebfm, c\u1eadp nh\u1eadt v\u00e0 chia s\u1ebb khi c\u1ea7n.<\/p>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3084\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u306e\u77e5\u8b58\u304c\u3042\u307e\u308a\u306a\u3044\u521d\u5fc3\u8005\u306e\u65b9\u306b\u3082\u5206\u304b\u308a\u3084\u3059\u304f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u3064\u3044\u3066\u77e5\u308a\u305f\u3044\u65b9\u306f\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">Trong b\u00e0i vi\u1ebft n\u00e0y, m\u00ecnh s\u1ebd gi\u1ea3i th\u00edch v\u1ec1 Database m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, d\u00e0nh cho nh\u1eefng ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u, ch\u01b0a c\u00f3 nhi\u1ec1u ki\u1ebfn th\u1ee9c v\u1ec1 l\u1eadp tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. N\u1ebfu b\u1ea1n mu\u1ed1n t\u00ecm hi\u1ec3u v\u1ec1 database th\u00ec h\u00e3y th\u1eed tham kh\u1ea3o b\u00e0i vi\u1ebft n\u00e0y nh\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-25edea1c3df80b98f71c7996819d1b09\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.176), 2rem);\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306f\uff1f\u306a\u305c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u5fc5\u8981\u306a\u306e\u304b\uff1f<\/h2>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color has-merriweather-font-family wp-elements-c8bbb35d7c7b0f7c4f029ac36568498a\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.176), 2rem);\">Database l\u00e0 g\u00ec? T\u1ea1i sao c\u1ea7n c\u00f3 Database?<\/h2>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08Database\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff09\u306f\u3001\u60c5\u5831\u3092\u4f53\u7cfb\u7684\u306b\u4fdd\u5b58\u30fb\u6574\u7406\u3057\u3001\u7c21\u5358\u306b\u30a2\u30af\u30bb\u30b9\u3001\u691c\u7d22\u3001\u7ba1\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">Database (c\u01a1 s\u1edf d\u1eef li\u1ec7u) l\u00e0 n\u01a1i l\u01b0u tr\u1eef v\u00e0 t\u1ed5 ch\u1ee9c th\u00f4ng tin m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng \u0111\u1ec3 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng truy c\u1eadp, t\u00ecm ki\u1ebfm v\u00e0 qu\u1ea3n l\u00fd.<\/p>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u4f8b\u3048\u3070\u3001\u672c\u5c4b\u3092\u7d4c\u55b6\u3057\u3066\u3044\u308b\u3068\u3057\u307e\u3057\u3087\u3046\u3002\u672c\u306e\u60c5\u5831\u3092\u3044\u304f\u3064\u3082\u306e\u30ce\u30fc\u30c8\u306b\u66f8\u304d\u8fbc\u3080\u3068\u3001\u63a2\u3059\u306e\u306b\u6642\u9593\u304c\u304b\u304b\u308a\u3001\u9593\u9055\u3044\u3082\u8d77\u3053\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3059\u3079\u3066\u306e\u672c\u306e\u30c7\u30fc\u30bf\uff08\u30bf\u30a4\u30c8\u30eb\u3001\u8457\u8005\u3001\u4fa1\u683c\u3001\u5728\u5eab\u6570\uff09\u304c\u4e00\u3064\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u5fc5\u8981\u306a\u60c5\u5831\u3092\u7c21\u5358\u306b\u898b\u3064\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">H\u00e3y t\u01b0\u1edfng t\u01b0\u1ee3ng b\u1ea1n c\u00f3 m\u1ed9t c\u1eeda h\u00e0ng s\u00e1ch. N\u1ebfu b\u1ea1n ghi th\u00f4ng tin s\u00e1ch v\u00e0o nhi\u1ec1u cu\u1ed1n s\u1ed5 kh\u00e1c nhau, vi\u1ec7c t\u00ecm ki\u1ebfm s\u1ebd m\u1ea5t th\u1eddi gian v\u00e0 d\u1ec5 nh\u1ea7m l\u1eabn. Nh\u01b0ng n\u1ebfu t\u1ea5t c\u1ea3 d\u1eef li\u1ec7u s\u00e1ch (t\u00ean, t\u00e1c gi\u1ea3, gi\u00e1, s\u1ed1 l\u01b0\u1ee3ng) \u0111\u01b0\u1ee3c l\u01b0u trong m\u1ed9t c\u01a1 s\u1edf d\u1eef li\u1ec7u, b\u1ea1n s\u1ebd d\u1ec5 d\u00e0ng t\u00ecm ra th\u00f4ng tin c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-7424eb72aa1983131cf25e4ad54cb082\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.809), 1.5rem);\"><strong>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u4e3b\u306a\u30e1\u30ea\u30c3\u30c8\uff1a<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-556f953fb9e161afdd39cb7a0506a5bd\" style=\"color:#323232\">\u30c7\u30fc\u30bf\u304c\u5931\u308f\u308c\u305f\u308a\u7834\u640d\u3057\u305f\u308a\u3059\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002<\/li>\n\n\n\n<li class=\"has-noto-sans-jp-font-family\">\u5fc5\u8981\u306a\u60c5\u5831\u3092\u6570\u79d2\u3067\u691c\u7d22\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-c203a029e6b88eec13a1f17113f9a0d3\" style=\"color:#323232\">\u8907\u6570\u306e\u4eba\u304c\u540c\u6642\u306b\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li class=\"has-noto-sans-jp-font-family\">\u30c7\u30fc\u30bf\u306e\u8ffd\u52a0\u3001\u7de8\u96c6\u3001\u524a\u9664\u3001\u8ffd\u8de1\u304c\u5bb9\u6613\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-manrope-font-family wp-elements-3d3f988fad9dd2603b3e4df24434e800\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.809), 1.5rem);\"><strong>C\u00e1c l\u1ee3i \u00edch ch\u00ednh c\u1ee7a Database:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-e801d19b7c4fc1f33c4a84c0f1f8a875\" style=\"color:#323232\">Tr\u00e1nh vi\u1ec7c d\u1eef li\u1ec7u b\u1ecb m\u1ea5t m\u00e1t ho\u1eb7c h\u1ecfng h\u00f3c.<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-1fc4e9b2264846b98ec503b60623e60d\" style=\"color:#323232\">Ch\u1ec9 m\u1ea5t v\u00e0i gi\u00e2y \u0111\u1ec3 t\u00ecm \u0111\u00fang th\u00f4ng tin.<\/li>\n\n\n\n<li class=\"has-manrope-font-family\">Nhi\u1ec1u ng\u01b0\u1eddi c\u00f3 th\u1ec3 c\u00f9ng truy c\u1eadp d\u1eef li\u1ec7u.<\/li>\n\n\n\n<li class=\"has-manrope-font-family\">D\u1ec5 d\u00e0ng th\u00eam, s\u1eeda, x\u00f3a v\u00e0 theo d\u00f5i d\u1eef li\u1ec7u.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-78e77f008cbfc08d1378380b271a4d26\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.176), 2rem);\">\u3088\u304f\u4f7f\u308f\u308c\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u7a2e\u985e<\/h2>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color has-merriweather-font-family wp-elements-867fd123e67d0524f8a6fd1be15e436b\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.176), 2rem);\">C\u00e1c lo\u1ea1i Database ph\u1ed5 bi\u1ebfn<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\" style=\"margin-top:20px;margin-bottom:20px\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database1-1024x536.png\" alt=\"Database type\" class=\"wp-image-1852\" srcset=\"https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database1-1024x536.png 1024w, https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database1-300x157.png 300w, https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database1-768x402.png 768w, https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database1.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-f80a3a5c8f9131dba134c20773f71a70\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.809), 1.5rem);\">1. \u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9<\/h3>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-merriweather-font-family wp-elements-d55a1f419145abf600efd7456282f5e0\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.809), 1.5rem);\">C\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 (Relational Database &#8211; RDB)<\/h3>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u3001\u884c\uff08row\uff09\u3068\u5217\uff08column\uff09\u3092\u6301\u3064*\u8868\uff08\u30c6\u30fc\u30d6\u30eb\uff09\u5f62\u5f0f\u3067\u30c7\u30fc\u30bf\u3092\u4fdd\u5b58\u3059\u308b\u30bf\u30a4\u30d7\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u3059\u3002\u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u30ad\u30fc\uff08key\uff09\u3092\u4f7f\u3063\u3066\u76f8\u4e92\u306b\u95a2\u9023\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">C\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7 l\u00e0 lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u01b0u tr\u1eef d\u1eef li\u1ec7u trong c\u00e1c b\u1ea3ng (table) c\u00f3 h\u00e0ng v\u00e0 c\u1ed9t. C\u00e1c b\u1ea3ng n\u00e0y c\u00f3 th\u1ec3 li\u00ean k\u1ebft v\u1edbi nhau th\u00f4ng qua kh\u00f3a (key).<\/p>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u4f8b\u3048\u3070\u3001\u5c0f\u3055\u306a\u304a\u5e97\u3092\u7d4c\u55b6\u3057\u3066\u3044\u308b\u3068\u3057\u307e\u3057\u3087\u3046\u3002\u9867\u5ba2\u306e\u30ea\u30b9\u30c8\u3068\u6ce8\u6587\u306e\u30ea\u30b9\u30c8\u3092\u6301\u3064\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u60c5\u5831\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30c6\u30fc\u30d6\u30eb\u3068\u3057\u3066\u7ba1\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-1e7bff36041c048ba0b948f734aadc98\" style=\"color:#323232\">\u9867\u5ba2\u30c6\u30fc\u30d6\u30eb\uff1a\u9867\u5ba2ID\u3001\u9867\u5ba2\u540d\u3001\u4f4f\u6240\u3001\u96fb\u8a71\u756a\u53f7<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-3da1febec0f8b924ac16da871dd6ec2c\" style=\"color:#323232\">\u6ce8\u6587\u30c6\u30fc\u30d6\u30eb\uff1a\u6ce8\u6587ID\u3001\u6ce8\u6587\u65e5\u3001\u5546\u54c1\u540d\u3001\u6570\u91cf\u3001\u9867\u5ba2ID<\/li>\n<\/ul>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">V\u00ed d\u1ee5 khi b\u1ea1n kinh doanh m\u1ed9t c\u1eeda h\u00e0ng nh\u1ecf, b\u1ea1n s\u1ebd c\u00f3 t\u1eadp h\u1ee3p danh s\u00e1ch c\u00e1c kh\u00e1ch h\u00e0ng v\u00e0 t\u1eadp h\u1ee3p c\u00e1c \u0111\u01a1n \u0111\u1eb7t h\u00e0ng. Nh\u1eefng th\u00f4ng tin n\u00e0y b\u1ea1n l\u01b0u tr\u1eef d\u01b0\u1edbi d\u1ea1ng b\u1ea3ng v\u00ed d\u1ee5 nh\u01b0<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-e405933c4bd3fdff4f36e8c35360e09e\" style=\"color:#323232\">B\u1ea3ng kh\u00e1ch h\u00e0ng: m\u00e3 kh\u00e1ch h\u00e0ng, t\u00ean kh\u00e1ch h\u00e0ng, \u0111\u1ecba ch\u1ec9, s\u1ed1 \u0111i\u1ec7n tho\u1ea1i<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-5d2fb4da4526a340213900cac55f133e\" style=\"color:#323232\">B\u1ea3ng \u0111\u01a1n \u0111\u1eb7t h\u00e0ng: m\u00e3 \u0111\u01a1n \u0111\u1eb7t h\u00e0ng, ng\u00e0y \u0111\u1eb7t h\u00e0ng, s\u1ea3n ph\u1ea9m, s\u1ed1 l\u01b0\u1ee3ng, m\u00e3 kh\u00e1ch h\u00e0ng<\/li>\n<\/ul>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u3053\u306e2\u3064\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u300c\u9867\u5ba2ID\u300d\u3067\u7d10\u4ed8\u3051\u3089\u308c\u3001\u3069\u306e\u9867\u5ba2\u304c\u3069\u306e\u6ce8\u6587\u3092\u884c\u3044\u3001\u3069\u306e\u5546\u54c1\u3092\u4f55\u500b\u8cfc\u5165\u3057\u305f\u304b\u3092\u7c21\u5358\u306b\u691c\u7d22\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">Hai b\u1ea3ng n\u00e0y li\u00ean k\u1ebft v\u1edbi nhau qua m\u00e3 kh\u00e1ch h\u00e0ng, gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng t\u00ecm ki\u1ebfm kh\u00e1ch h\u00e0ng n\u00e0o \u0111\u00e3 \u0111\u1eb7t \u0111\u01a1n h\u00e0ng n\u00e0o, s\u1ea3n ph\u1ea9m g\u00ec v\u1edbi s\u1ed1 l\u01b0\u1ee3ng bao nhi\u00eau.<\/p>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u3001\u69cb\u9020\u304c\u660e\u78ba\u306a\u30c7\u30fc\u30bf\u3092\u7ba1\u7406\u3057\u3084\u3059\u304f\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u3064\u306e\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">V\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7, b\u1ea1n d\u1ec5 qu\u1ea3n l\u00fd d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac r\u00f5 r\u00e0ng, \u0111\u1ea3m b\u1ea3o t\u00ednh to\u00e0n v\u1eb9n d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u3057\u304b\u3057\u3001\u30c7\u30fc\u30bf\u69cb\u9020\u304c\u5909\u66f4\u3055\u308c\u308b\u5834\u5408\u306b\u306f\u67d4\u8edf\u6027\u306b\u6b20\u3051\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30c6\u30fc\u30d6\u30eb\u306b\u65b0\u3057\u3044\u5217\u3092\u8ffd\u52a0\u3057\u305f\u308a\u524a\u9664\u3057\u305f\u308a\u3059\u308b\u5834\u5408\u3001\u65e2\u5b58\u30c7\u30fc\u30bf\u5168\u4f53\u3092\u66f4\u65b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u5927\u898f\u6a21\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u306f\u30b7\u30b9\u30c6\u30e0\u304c\u4e00\u6642\u7684\u306b\u505c\u6b62\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">Nh\u01b0ng n\u00f3 l\u1ea1i kh\u00f4ng linh ho\u1ea1t khi d\u1eef li\u1ec7u thay \u0111\u1ed5i c\u1ea5u tr\u00fac. V\u00ed d\u1ee5 khi th\u00eam c\u1ed9t m\u1edbi ho\u1eb7c xo\u00e1 c\u1ed9t trong b\u1ea3ng, c\u1ea7n c\u1eadp nh\u1eadt l\u1ea1i to\u00e0n b\u1ed9 d\u1eef li\u1ec7u \u0111\u00e3 c\u00f3, \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n h\u1ec7 th\u1ed1ng, \u0111\u1eb7c bi\u1ec7t v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u1edbn.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color wp-elements-3ac1d7574bd5217d4af0682b926b26a9\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.809), 1.5rem);\">2. \u975e\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08NoSQL Database\uff09<\/h3>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-link-color has-merriweather-font-family wp-elements-d96ec330710714a0941dd9baca1a9d63\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.809), 1.5rem);\">C\u01a1 s\u1edf d\u1eef li\u1ec7u phi quan h\u1ec7 (NoSQL Database)<\/h3>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u975e\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u3001\u8868\u5f62\u5f0f\u3067\u306f\u306a\u304f\u3055\u307e\u3056\u307e\u306a\u30c7\u30fc\u30bf\u30e2\u30c7\u30eb\u3067\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u30bf\u30a4\u30d7\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u30ad\u30fc\u3068\u5024\uff08key-value\uff09\u5f62\u5f0f\u3067\u4fdd\u5b58\u3059\u308bRedis\u3084DynamoDB\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5f62\u5f0f\uff08JSON\uff09\u3067\u4fdd\u5b58\u3059\u308bMongoDB\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">C\u01a1 s\u1edf d\u1eef li\u1ec7u phi quan h\u1ec7 l\u00e0 lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u kh\u00f4ng l\u01b0u tr\u1eef d\u01b0\u1edbi d\u1ea1ng c\u1ea5u tr\u00fac b\u1ea3ng m\u00e0 s\u1eed d\u1ee5ng nhi\u1ec1u m\u00f4 h\u00ecnh d\u1eef li\u1ec7u kh\u00e1c nhau. V\u00ed d\u1ee5 nh\u01b0 l\u01b0u tr\u1eef \u1edf d\u1ea1ng key-value (Redis, DynamoDB), ho\u1eb7c l\u01b0u tr\u1eef d\u01b0\u1edbi d\u1ea1ng t\u00e0i li\u1ec7u nh\u01b0 JSON (MongoDB),\u2026<\/p>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">NoSQL\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u3001\u30c7\u30fc\u30bf\u69cb\u9020\u304c\u983b\u7e41\u306b\u5909\u308f\u308b\u5834\u5408\u3084\u3001\u5927\u91cf\u30c7\u30fc\u30bf\u3092\u6271\u3044\u3001\u304b\u3064\u5bb9\u6613\u306b\u30b9\u30b1\u30fc\u30eb\uff08\u62e1\u5f35\uff09\u3057\u305f\u3044\u5834\u5408\u306b\u5411\u3044\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u4e00\u8cab\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u306a\u3044\u3001\u8907\u96d1\u306a\u30af\u30a8\u30ea\u51e6\u7406\u304c\u82e6\u624b\u306a\u3069\u306e\u30c7\u30e1\u30ea\u30c3\u30c8\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">C\u01a1 s\u1edf d\u1eef li\u1ec7u phi quan h\u1ec7 s\u1ebd ph\u00f9 h\u1ee3p trong tr\u01b0\u1eddng h\u1ee3p c\u1ea5u tr\u00fac d\u1eef li\u1ec7u thay \u0111\u1ed5i th\u01b0\u1eddng xuy\u00ean, kh\u1ed1i l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn, c\u1ea7n m\u1edf r\u1ed9ng d\u1ec5 d\u00e0ng. Tuy nhi\u00ean, NoSQL c\u00f3 m\u1ed9t s\u1ed1 nh\u01b0\u1ee3c \u0111i\u1ec3m nh\u01b0 thi\u1ebfu t\u00ednh nh\u1ea5t qu\u00e1n, h\u1ea1n ch\u1ebf trong c\u00e1c truy v\u1ea5n ph\u1ee9c t\u1ea1p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color wp-elements-c81472acfbec699676c91c657e3722a7\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.176), 2rem);\">\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306f\uff1f<\/h2>\n\n\n\n<h2 class=\"wp-block-heading has-text-color has-link-color has-merriweather-font-family wp-elements-a5d08bcd2656e41ccae68926ee40373b\" style=\"color:#323232;margin-top:15px;margin-bottom:15px;font-size:clamp(1.25rem, 1.25rem + ((1vw - 0.2rem) * 1.176), 2rem);\">Relational Database l\u00e0 g\u00ec?<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\" style=\"margin-top:20px;margin-bottom:20px\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"536\" src=\"https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database2-1024x536.png\" alt=\"Relational Database\" class=\"wp-image-1854\" srcset=\"https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database2-1024x536.png 1024w, https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database2-300x157.png 300w, https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database2-768x402.png 768w, https:\/\/hatarakinihongo.com\/wp-content\/uploads\/2025\/11\/Database2.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08RDB\uff09\u3068\u306f\u3001\u884c\uff08row\uff09\u3068\u5217\uff08column\uff09\u3092\u6301\u3064\u8868\uff08\u30c6\u30fc\u30d6\u30eb\uff09\u5f62\u5f0f\u3067\u60c5\u5831\u3092\u4fdd\u5b58\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u3053\u3068\u3067\u3059\u3002\u8907\u6570\u306e\u30c6\u30fc\u30d6\u30eb\u306f\u30ad\u30fc\uff08key\uff09\u3092\u901a\u3058\u3066\u95a2\u9023\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">Relational Database (C\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7) l\u00e0 lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u01b0u tr\u1eef th\u00f4ng tin theo d\u1ea1ng b\u1ea3ng (table) g\u1ed3m h\u00e0ng (row) v\u00e0 c\u1ed9t (column). C\u00e1c b\u1ea3ng n\u00e0y c\u00f3 th\u1ec3 li\u00ean k\u1ebft v\u1edbi nhau th\u00f4ng qua kh\u00f3a (key).<\/p>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u69cb\u9020\u304c\u660e\u78ba\u3067\u7ba1\u7406\u3057\u3084\u3059\u304f\u3001\u30c7\u30fc\u30bf\u691c\u7d22\u3082\u52b9\u7387\u7684\u306a\u305f\u3081\u3001\u6700\u3082\u3088\u304f\u4f7f\u308f\u308c\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">Trong c\u00e1c d\u1ef1 \u00e1n ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m, \u0111\u00e2y l\u00e0 lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00ec c\u1ea5u tr\u00fac r\u00f5 r\u00e0ng, d\u1ec5 qu\u1ea3n l\u00fd, d\u1ec5 truy v\u1ea5n d\u1eef li\u1ec7u.<\/p>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\">\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u69cb\u9020\u304c\u660e\u78ba\u3067\u7ba1\u7406\u3057\u3084\u3059\u304f\u3001\u30c7\u30fc\u30bf\u691c\u7d22\u3082\u52b9\u7387\u7684\u306a\u305f\u3081\u3001\u6700\u3082\u3088\u304f\u4f7f\u308f\u308c\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">Trong c\u00e1c d\u1ef1 \u00e1n ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m, \u0111\u00e2y l\u00e0 lo\u1ea1i c\u01a1 s\u1edf d\u1eef li\u1ec7u ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00ec c\u1ea5u tr\u00fac r\u00f5 r\u00e0ng, d\u1ec5 qu\u1ea3n l\u00fd, d\u1ec5 truy v\u1ea5n d\u1eef li\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading has-noto-sans-jp-font-family\" style=\"margin-top:15px;font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.809), 1.5rem);\"><strong>\u95a2\u4fc2\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u57fa\u672c\u7528\u8a9e<\/strong><\/h3>\n\n\n\n<h3 class=\"wp-block-heading has-manrope-font-family\" style=\"margin-top:15px;font-size:clamp(0.984rem, 0.984rem + ((1vw - 0.2rem) * 0.809), 1.5rem);\"><strong>C\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n trong Relational Database<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-72bd218fae7aaf9ca45bd39ebfa146df\" style=\"color:#323232\">\u30c6\u30fc\u30d6\u30eb\uff08Table\uff09<br> \u884c\u3068\u5217\u3067\u69cb\u6210\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306e\u96c6\u307e\u308a\u3002<br>\u4f8b\uff1a\u300c\u9867\u5ba2\u30c6\u30fc\u30d6\u30eb\u300d\u300c\u5546\u54c1\u30c6\u30fc\u30d6\u30eb\u300d\u3002<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-f89dcdd6ebd1bb66defb530bd7338dc8\" style=\"color:#323232\">Table (B\u1ea3ng)<br>L\u00e0 t\u1eadp h\u1ee3p d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c t\u1ed5 ch\u1ee9c theo h\u00e0ng (row) v\u00e0 c\u1ed9t (column). V\u00ed d\u1ee5: B\u1ea3ng &#8220;Kh\u00e1ch h\u00e0ng&#8221;, B\u1ea3ng &#8220;S\u1ea3n ph\u1ea9m&#8221;.<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-545b21daf25187d1508412b40ac8e4c9\" style=\"color:#323232\">\u30d5\u30a3\u30fc\u30eb\u30c9\uff08Field\uff09<br>\u30c6\u30fc\u30d6\u30eb\u306b\u4fdd\u5b58\u3055\u308c\u308b\u60c5\u5831\u306e\u7a2e\u985e\u3002<br>\u4f8b\uff1a\u9867\u5ba2\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u300c\u9867\u5ba2ID\u300d\u300c\u540d\u524d\u300d\u300c\u5e74\u9f62\u300d\u300c\u4f4f\u6240\u300d\u300c\u96fb\u8a71\u756a\u53f7\u300d\u30ab\u30e9\u30e0\u3092\u6301\u3061\u307e\u3059\u3002<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-4e8d1378963a03233ca1f86235f82ea7\" style=\"color:#323232\">Field (C\u1ed9t)<br>L\u00e0 lo\u1ea1i th\u00f4ng tin \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong b\u1ea3ng. V\u00ed d\u1ee5: B\u1ea3ng \u201cKh\u00e1ch h\u00e0ng\u201d ch\u1ee9a c\u00e1c c\u1ed9t M\u00e3 kh\u00e1ch h\u00e0ng, T\u00ean Kh\u00e1ch h\u00e0ng, Tu\u1ed5i, \u0110\u1ecba ch\u1ec9, S\u1ed1 \u0111i\u1ec7n tho\u1ea1i<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-8c5446e797ebd5bd700c23ffa15b3ed3\" style=\"color:#323232\">\u30ec\u30b3\u30fc\u30c9\uff08Record\uff09 <br>\u30c6\u30fc\u30d6\u30eb\u5185\u306e\u7279\u5b9a\u306e1\u884c\u306e\u30c7\u30fc\u30bf\u3002<br>\u4f8b\uff1a\u300cNguyen Van A\u300130\u6b73\u3001\u30cf\u30ce\u30a4\u5728\u4f4f\u300d\u306e\u3088\u3046\u306a1\u4eba\u306e\u9867\u5ba2\u60c5\u5831\u3002<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-52631ae41ec2730c55277eafe51be6cb\" style=\"color:#323232\">Record (B\u1ea3n ghi)<br>L\u00e0 m\u1ed9t d\u00f2ng d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 trong b\u1ea3ng. V\u00ed d\u1ee5: M\u1ed9t kh\u00e1ch h\u00e0ng t\u00ean &#8220;Nguy\u1ec5n V\u0103n A&#8221;, 30 tu\u1ed5i, s\u1ed1ng \u1edf H\u00e0 N\u1ed9i.<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-d4669f46cbe0e5a0cb8052c5cf3eab91\" style=\"color:#323232\">\u30c6\u30fc\u30d6\u30eb\u9593\u306e\u95a2\u4fc2<br>\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u306f\u3001\u4e3b\u306b3\u3064\u306e\u95a2\u4fc2\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002\n<ul class=\"wp-block-list\">\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-0b038a2e26463e69a0b8c2e83a4b66e3\" style=\"color:#323232\">1\u5bfe1\uff08One-to-One): \u3042\u308b\u30c6\u30fc\u30d6\u30eb\u306e1\u3064\u306e\u30ec\u30b3\u30fc\u30c9\u306f\u3001\u4ed6\u306e\u30c6\u30fc\u30d6\u30eb\u306e1\u3064\u306e\u30ec\u30b3\u30fc\u30c9\u3060\u3051\u3068\u95a2\u9023\u3057\u307e\u3059\u3002 <em>\u4f8b:<\/em> 1\u4eba\u306e\u9867\u5ba2\u306f1\u679a\u306e\u4f1a\u54e1\u30ab\u30fc\u30c9\u3057\u304b\u6301\u305f\u306a\u3044\u3002<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-13ac35a5df14847193ee87d6afddc0de\" style=\"color:#323232\">1\u5bfe\u591a\uff08One-to-Many): \u3042\u308b\u30c6\u30fc\u30d6\u30eb\u306e1\u3064\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u3001\u4ed6\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u8907\u6570\u306e\u30ec\u30b3\u30fc\u30c9\u3068\u95a2\u9023\u3057\u307e\u3059\u3002 <em>\u4f8b:<\/em> 1\u4eba\u306e\u9867\u5ba2\u306f\u8907\u6570\u306e\u6ce8\u6587\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-0603a88053da37532d011061e7a3d7a0\" style=\"color:#323232\">\u591a\u5bfe\u591a\uff08Many-to-Many): \u3042\u308b\u30c6\u30fc\u30d6\u30eb\u306e1\u3064\u306e\u30ec\u30b3\u30fc\u30c9\u304c\u3001\u4ed6\u306e\u30c6\u30fc\u30d6\u30eb\u306e\u8907\u6570\u306e\u30ec\u30b3\u30fc\u30c9\u3068\u95a2\u9023\u3057\u3001\u9006\u3082\u540c\u69d8\u306b\u8907\u6570\u3068\u95a2\u9023\u3057\u307e\u3059\u3002 <em>\u4f8b:<\/em> 1\u3064\u306e\u5546\u54c1\u304c\u8907\u6570\u306e\u6ce8\u6587\u306b\u542b\u307e\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u30011\u3064\u306e\u6ce8\u6587\u306b\u8907\u6570\u306e\u5546\u54c1\u304c\u542b\u307e\u308c\u308b\u5834\u5408\u3082\u3042\u308b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-6eef2de3591e39f3ed4df2b2d0322813\" style=\"color:#323232\">M\u1ed1i quan h\u1ec7 gi\u1eefa c\u00e1c b\u1ea3ng<br>C\u00f3 3 ki\u1ec3u m\u1ed1i quan h\u1ec7 ch\u00ednh trong c\u01a1 s\u1edf d\u1eef li\u1ec7u quan h\u1ec7:\n<ul class=\"wp-block-list\">\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-acaaa2323765c847ad6d1be57ba5d522\" style=\"color:#323232\">1:1 (One-to-One) \u2013 M\u1ed9t b\u1ea3n ghi (record) trong b\u1ea3ng n\u00e0y ch\u1ec9 li\u00ean k\u1ebft v\u1edbi m\u1ed9t b\u1ea3n ghi duy nh\u1ea5t trong b\u1ea3ng kia.<br><em>V\u00ed d\u1ee5:<\/em> M\u1ed9t kh\u00e1ch h\u00e0ng ch\u1ec9 c\u00f3 m\u1ed9t th\u1ebb th\u00e0nh vi\u00ean.<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-3149da6e299aa8a5f318468865d9fa87\" style=\"color:#323232\">1:n (One-to-Many) \u2013 M\u1ed9t b\u1ea3n ghi trong b\u1ea3ng n\u00e0y c\u00f3 th\u1ec3 li\u00ean k\u1ebft v\u1edbi nhi\u1ec1u b\u1ea3n ghi trong b\u1ea3ng kh\u00e1c.<br><em>V\u00ed d\u1ee5:<\/em> M\u1ed9t kh\u00e1ch h\u00e0ng c\u00f3 th\u1ec3 \u0111\u1eb7t nhi\u1ec1u \u0111\u01a1n h\u00e0ng.<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-4e595485a7e105fce0b57744f43fd60f\" style=\"color:#323232\">n:n (Many-to-Many) \u2013 M\u1ed9t b\u1ea3n ghi trong b\u1ea3ng n\u00e0y c\u00f3 th\u1ec3 li\u00ean k\u1ebft v\u1edbi nhi\u1ec1u b\u1ea3n ghi trong b\u1ea3ng kh\u00e1c v\u00e0 ng\u01b0\u1ee3c l\u1ea1i. <br><em>V\u00ed d\u1ee5:<\/em> M\u1ed9t s\u1ea3n ph\u1ea9m c\u00f3 th\u1ec3 thu\u1ed9c nhi\u1ec1u \u0111\u01a1n h\u00e0ng, v\u00e0 m\u1ed9t \u0111\u01a1n h\u00e0ng c\u00f3 th\u1ec3 ch\u1ee9a nhi\u1ec1u s\u1ea3n ph\u1ea9m.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-a5593ad10ca68d6daa787d1c73312e0e\" style=\"color:#323232\">\u4e3b\u30ad\u30fc\uff08Primary Key\uff09<br>\u5404\u30ec\u30b3\u30fc\u30c9\u3092\u4e00\u610f\u306b\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u5024\u3002<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-4013ab7b09d097a3b1741785ded50810\" style=\"color:#323232\">Primary Key (Kh\u00f3a ch\u00ednh)<br>L\u00e0 gi\u00e1 tr\u1ecb \u0111\u1ecbnh danh duy nh\u1ea5t cho m\u1ed7i b\u1ea3n ghi trong b\u1ea3ng, gi\u00fap ph\u00e2n bi\u1ec7t c\u00e1c b\u1ea3n ghi v\u1edbi nhau.<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-noto-sans-jp-font-family wp-elements-85fdcbc53b628a6ba81fe5cb56599251\" style=\"color:#323232\">\u5916\u90e8\u30ad\u30fc\uff08Foreign Key\uff09<br>\u4ed6\u306e\u30c6\u30fc\u30d6\u30eb\u3068\u306e\u95a2\u9023\u4ed8\u3051\u306b\u4f7f\u3046\u5217\u3002\u4f8b\uff1a\u300c\u6ce8\u6587\u30c6\u30fc\u30d6\u30eb\u300d\u306e\u300c\u9867\u5ba2ID\u300d\u306f\u5916\u90e8\u30ad\u30fc\u3068\u3057\u3066\u3001\u300c\u9867\u5ba2\u30c6\u30fc\u30d6\u30eb\u300d\u306e\u300c\u9867\u5ba2ID\u300d\u3068\u95a2\u9023\u4ed8\u3051\u3089\u308c\u308b\u3002<\/li>\n\n\n\n<li class=\"has-text-color has-link-color has-manrope-font-family wp-elements-dd342b9b69fa4bc218c1630991451a2d\" style=\"color:#323232\">Foreign Key (Kh\u00f3a ngo\u1ea1i)<br>L\u00e0 c\u1ed9t d\u00f9ng \u0111\u1ec3 li\u00ean k\u1ebft b\u1ea3ng n\u00e0y v\u1edbi b\u1ea3ng kh\u00e1c. V\u00ed d\u1ee5: &#8220;M\u00e3 kh\u00e1ch h\u00e0ng&#8221; trong b\u1ea3ng \u0111\u01a1n h\u00e0ng l\u00e0 kh\u00f3a ngo\u1ea1i, li\u00ean k\u1ebft v\u1edbi &#8220;M\u00e3 kh\u00e1ch h\u00e0ng&#8221; trong b\u1ea3ng kh\u00e1ch h\u00e0ng.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\"><strong>\u9867\u5ba2\u30c6\u30fc\u30d6\u30eb<\/strong><\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">B\u1ea3ng kh\u00e1ch h\u00e0ng<\/p>\n\n\n\n<figure style=\"margin-top:15px\" class=\"wp-block-table has-manrope-font-family\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u9867\u5ba2ID <br>M\u00e3 kh\u00e1ch h\u00e0ng<\/td><td>\u540d\u524d <br>T\u00ean kh\u00e1ch h\u00e0ng<\/td><td>\u4f4f\u6240<br>N\u01a1i \u1edf<\/td><\/tr><tr><td>1<\/td><td>Nguy\u1ec5n V\u0103n An<\/td><td>H\u00e0 N\u1ed9i<\/td><\/tr><tr><td>2<\/td><td>Tr\u1ea7n Qu\u1ed1c B\u00ecnh<\/td><td>H\u1ed3 Ch\u00ed Minh<\/td><\/tr><tr><td>3<\/td><td>Ho\u00e0ng Trung Ki\u00ean<\/td><td>H\u1ea3i Ph\u00f2ng<\/td><\/tr><tr><td><\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"has-noto-sans-jp-font-family wp-block-paragraph\" style=\"margin-top:15px\"><strong>\u6ce8\u6587\u30c6\u30fc\u30d6\u30eb<\/strong><\/p>\n\n\n\n<p class=\"has-manrope-font-family wp-block-paragraph\" style=\"margin-top:15px\">B\u1ea3ng \u0111\u01a1n h\u00e0ng<\/p>\n\n\n\n<figure style=\"margin-top:15px\" class=\"wp-block-table has-manrope-font-family\"><table class=\"has-fixed-layout\"><tbody><tr><td>\u6ce8\u6587ID <br>M\u00e3 \u0111\u01a1n h\u00e0ng<\/td><td>\u9867\u5ba2ID <br>M\u00e3 kh\u00e1ch h\u00e0ng<\/td><td>\u6ce8\u6587\u65e5 <br>Ng\u00e0y \u0111\u1eb7t h\u00e0ng<\/td><td>\u91d1\u984d <br>S\u1ed1 ti\u1ec1n<\/td><\/tr><tr><td>1<\/td><td>2<\/td><td>12\/06\/2024<\/td><td>200.000<\/td><\/tr><tr><td>2<\/td><td>1<\/td><td>13\/06\/2024<\/td><td>300.000<\/td><\/tr><tr><td>3<\/td><td>5<\/td><td>13\/06\/2024<\/td><td>100.000<\/td><\/tr><tr><td><\/td><td><\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-group alignwide is-layout-flow wp-block-group-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--60);padding-bottom:var(--wp--preset--spacing--60)\">\n<h2 class=\"wp-block-heading alignwide has-small-font-size\" style=\"font-style:normal;font-weight:700;letter-spacing:1.4px;text-transform:uppercase\">More posts<\/h2>\n\n\n\n<div class=\"wp-block-query alignwide is-layout-flow wp-block-query-is-layout-flow\"><ul class=\"alignfull wp-block-post-template is-layout-flow wp-container-core-post-template-is-layout-70c34877 wp-block-post-template-is-layout-flow\"><li class=\"wp-block-post post-1881 post type-post status-publish format-standard has-post-thumbnail hentry category-kien-thuc-it-co-ban category-tieng-nhat-it tag-brse tag-cong-nghe-thong-tin tag-du-an-phat-trien-phan-mem tag-it-comtor tag-kien-thuc-it-co-ban tag-phat-trien-phan-mem tag-tieng-nhat-cong-nghe-thong-tin tag-tieng-nhat-it\">\n\n<div class=\"wp-block-group alignfull is-content-justification-space-between is-nowrap is-layout-flex wp-container-core-group-is-layout-bb913111 wp-block-group-is-layout-flex\" style=\"border-bottom-color:var(--wp--preset--color--accent-6);border-bottom-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\"><h3 class=\"wp-block-post-title has-large-font-size\"><a href=\"https:\/\/hatarakinihongo.com\/?p=1881\" target=\"_self\" >Software Testing<\/a><\/h3><\/div>\n\n<\/li><li class=\"wp-block-post post-1870 post type-post status-publish format-standard has-post-thumbnail hentry category-kien-thuc-it-co-ban category-tieng-nhat-it tag-brse tag-cong-nghe-thong-tin tag-du-an-phat-trien-phan-mem tag-it-comtor tag-kien-thuc-it-co-ban tag-phat-trien-phan-mem tag-tieng-nhat-cong-nghe-thong-tin tag-tieng-nhat-it\">\n\n<div class=\"wp-block-group alignfull is-content-justification-space-between is-nowrap is-layout-flex wp-container-core-group-is-layout-bb913111 wp-block-group-is-layout-flex\" style=\"border-bottom-color:var(--wp--preset--color--accent-6);border-bottom-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\"><h3 class=\"wp-block-post-title has-large-font-size\"><a href=\"https:\/\/hatarakinihongo.com\/?p=1870\" target=\"_self\" >SDLC &#8211; V\u00f2ng \u0111\u1eddi ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m &#8211; Ph\u1ea7n 2<\/a><\/h3><\/div>\n\n<\/li><li class=\"wp-block-post post-1864 post type-post status-publish format-standard has-post-thumbnail hentry category-kien-thuc-it-co-ban category-tieng-nhat-it tag-brse tag-cong-nghe-thong-tin tag-du-an-phat-trien-phan-mem tag-it-comtor tag-kien-thuc-it-co-ban tag-phat-trien-phan-mem tag-tieng-nhat-cong-nghe-thong-tin tag-tieng-nhat-it\">\n\n<div class=\"wp-block-group alignfull is-content-justification-space-between is-nowrap is-layout-flex wp-container-core-group-is-layout-bb913111 wp-block-group-is-layout-flex\" style=\"border-bottom-color:var(--wp--preset--color--accent-6);border-bottom-width:1px;padding-top:var(--wp--preset--spacing--30);padding-bottom:var(--wp--preset--spacing--30)\"><h3 class=\"wp-block-post-title has-large-font-size\"><a href=\"https:\/\/hatarakinihongo.com\/?p=1864\" target=\"_self\" >SDLC &#8211; V\u00f2ng \u0111\u1eddi ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m &#8211; Ph\u1ea7n 1<\/a><\/h3><\/div>\n\n<\/li><\/ul><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08Database\uff09\u306f\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u958b\u767a\u306b\u304a\u3044\u3066\u6700\u3082\u57fa\u672c\u7684\u3067\u91cd\u8981\u306a\u6982\u5ff5\u306e\u4e00\u3064\u3067\u3059\u3002\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\uff1f Database hay c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u00e0 m\u1ed9t trong nh\u1eefng kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u00e0 quan tr\u1ecdng nh\u1ea5t trong ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m. V\u1eady database l\u00e0 g\u00ec? C\u01a1 s\u1edf d\u1eef li\u1ec7u l\u00e0 g\u00ec? \u7c21\u5358\u306b\u8a00\u3046\u3068\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u306f\u3001\u60c5\u5831\u3092\u4fdd\u5b58\u30fb\u7ba1\u7406\u3057\u3001\u5fc5\u8981\u306a\u3068\u304d\u306b\u7c21\u5358\u306b\u691c\u7d22\u30fb\u66f4\u65b0\u30fb\u5171\u6709\u3067\u304d\u308b\u5834\u6240\u306e\u3053\u3068\u3067\u3059\u3002 N\u00f3i \u0111\u01a1n gi\u1ea3n, database l\u00e0 n\u01a1i l\u01b0u tr\u1eef v\u00e0 qu\u1ea3n l\u00fd th\u00f4ng tin, \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng t\u00ecm [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1818,"comment_status":"open","ping_status":"open","sticky":false,"template":"kien-thuc-it-co-ban","format":"standard","meta":{"footnotes":""},"categories":[39,38],"tags":[81,78,83,80,79,82,35,33],"class_list":["post-1817","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kien-thuc-it-co-ban","category-tieng-nhat-it","tag-brse","tag-cong-nghe-thong-tin","tag-du-an-phat-trien-phan-mem","tag-it-comtor","tag-kien-thuc-it-co-ban","tag-phat-trien-phan-mem","tag-tieng-nhat-cong-nghe-thong-tin","tag-tieng-nhat-it"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Database - Hataraki Nihongo<\/title>\n<meta name=\"description\" content=\"Ki\u1ebfn th\u1ee9c IT c\u01a1 b\u1ea3n d\u00e0nh cho IT comtor v\u00e0 BrSE - Gi\u1ea3i th\u00edch ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 Database, c\u00e1c 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