{"id":4915,"date":"2024-04-25T12:14:35","date_gmt":"2024-04-25T03:14:35","guid":{"rendered":"https:\/\/blog.since2020.jp\/?p=4915"},"modified":"2024-04-25T12:14:35","modified_gmt":"2024-04-25T03:14:35","slug":"basics-db_sql","status":"publish","type":"post","link":"https:\/\/since2020.jp\/media\/basics-db_sql\/","title":{"rendered":"DB\u3068SQL\u306e\u57fa\u672c\u3068\u5fdc\u7528 | DBMS\u306e\u7a2e\u985e\u3068\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac"},"content":{"rendered":"\n<p>SQL\u3068DBMS\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u3053\u3068\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6280\u8853\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9(DB)\u3068SQL\u306e\u57fa\u672c\u7684\u306a\u95a2\u4fc2\u6027\u304b\u3089\u3001\u7570\u306a\u308bDBMS\u306e\u7a2e\u985e\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u307e\u3067\u306e\u5e83\u7bc4\u306a\u30ac\u30a4\u30c9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n\n\n<h2>\u306f\u3058\u3081\u306b<\/h2>\n<p>\u30c7\u30fc\u30bf\u306f\u65b0\u305f\u306a\u77f3\u6cb9\u3068\u3082\u547c\u3070\u308c\u3001\u73fe\u4ee3\u306e\u30d3\u30b8\u30cd\u30b9\u306b\u304a\u3044\u3066\u6975\u3081\u3066\u4fa1\u5024\u306e\u3042\u308b\u30ea\u30bd\u30fc\u30b9\u3067\u3059\u3002\u305d\u306e\u30c7\u30fc\u30bf\u3092\u52b9\u7387\u7684\u306b\u7ba1\u7406\u3057\u3001\u6d3b\u7528\u3059\u308b\u305f\u3081\u306e\u57fa\u76e4\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08DB\uff09\u3067\u3059\u3002\u7279\u306b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\uff08DBMS\uff09\u3068SQL\uff08Structured Query Language\uff09\u306e\u95a2\u4fc2\u306f\u3001\u3053\u308c\u3089\u306e\u30c7\u30fc\u30bf\u306e\u64cd\u4f5c\u3068\u7ba1\u7406\u306b\u304a\u3044\u3066\u4e2d\u5fc3\u7684\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001SQL\u306e\u57fa\u672c\u304b\u3089\u59cb\u3081\u3001DBMS\u306e\u7a2e\u985e\u3001\u305d\u3057\u3066\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u6398\u308a\u4e0b\u3052\u307e\u3059\u3002<\/p>\n\n<h2>SQL\u3068\u306f<\/h2>\n<p>SQL\u306f1970\u5e74\u4ee3\u306bIBM\u306b\u3088\u3063\u3066\u958b\u767a\u3055\u308c\u3001\u30ea\u30ec\u30fc\u30b7\u30e7\u30ca\u30eb\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306e\u6a19\u6e96\u7684\u306a\u8a00\u8a9e\u3068\u3057\u3066\u5e83\u304f\u666e\u53ca\u3057\u307e\u3057\u305f\u3002SQL\u306b\u3088\u3063\u3066\u3001\u30c7\u30fc\u30bf\u306e\u62bd\u51fa\u3001\u66f4\u65b0\u3001\u524a\u9664\u304c\u76f4\u611f\u7684\u306a\u5f62\u5f0f\u3067\u53ef\u80fd\u306b\u306a\u308a\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6280\u8853\u306e\u9032\u5c55\u3092\u5927\u304d\u304f\u63a8\u9032\u3057\u307e\u3057\u305f\u3002<\/p>\r\n<p>SQL\u306e\u57fa\u672c\u7684\u306a\u547d\u4ee4\u306b\u306f\u3001\u30c7\u30fc\u30bf\u306e\u633f\u5165\uff08INSERT\uff09\u3001\u66f4\u65b0\uff08UPDATE\uff09\u3001\u524a\u9664\uff08DELETE\uff09\u3001\u305d\u3057\u3066\u30c7\u30fc\u30bf\u306e\u554f\u3044\u5408\u308f\u305b\uff08SELECT\uff09\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u3053\u306a\u3059\u3053\u3068\u3067\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u5185\u306e\u60c5\u5831\u3092\u67d4\u8edf\u306b\u64cd\u4f5c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\r\n<div class=\"hcb_wrap\">\r\n<pre class=\"prism line-numbers lang-sql\" data-lang=\"SQL\"><code>SELECT * FROM users WHERE age &gt; 20;\r\nINSERT INTO users (name, age) VALUES ('Taro', 30);\r\nUPDATE users SET age = 31 WHERE name = 'Taro';\r\nDELETE FROM users WHERE name = 'Taro';\r\n<\/code><\/pre>\r\n<\/div>\r\n<p>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u3063\u3066\u7ba1\u7406\u3055\u308c\u307e\u3059\u304c\u3001DBMS\u306b\u547d\u4ee4\u3092\u3059\u308b\u3068\u304d\u306f\u30c7\u30fc\u30bf\u306e\u5b9a\u7fa9\u3084\u64cd\u4f5c\u30fb\u5236\u5fa1\u3092\u884c\u3046\u305f\u3081\u306e\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u8a00\u8a9e\u3067\u3042\u308bSQL\u3067\u6307\u793a\u3092\u3057\u307e\u3059\u3002<\/p>\r\n<p><img decoding=\"async\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.34.44.png\" alt=\"\" width=\"636\" height=\"260\" class=\"alignnone size-full wp-image-4916\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.34.44.png 636w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.34.44-300x123.png 300w\" sizes=\"(max-width: 636px) 100vw, 636px\" \/><\/p>\n\n<h2>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0(DBMS)\u306e\u7d39\u4ecb<\/h2>\n<p>DBMS\u306f\u30c7\u30fc\u30bf\u306e\u6574\u7406\u3001\u4fdd\u7ba1\u3001\u53d6\u5f97\u3092\u52b9\u7387\u5316\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3067\u3001\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u3084\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u540c\u6642\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u74b0\u5883\u3092\u7ba1\u7406\u3057\u307e\u3059\u3002\u5b89\u5168\u6027\u3084\u901f\u5ea6\u3001\u62e1\u5f35\u6027\u3092\u4fdd\u3061\u306a\u304c\u3089\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3092\u4fdd\u3064\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\r\n<p>\u4e3b\u8981\u306aDBMS\u306b\u3064\u3044\u3066\u4ee5\u4e0b\u306e3\u3064\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\r\n<p><img decoding=\"async\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.36.57.png\" alt=\"\" width=\"838\" height=\"162\" class=\"alignnone size-full wp-image-4917\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.36.57.png 838w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.36.57-300x58.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.36.57-768x148.png 768w\" sizes=\"(max-width: 838px) 100vw, 838px\" \/><\/p>\r\n<ul>\r\n\t<li><strong>MySQL<\/strong> <br \/>\r\n\u51e6\u7406\u80fd\u529b\u304c\u65e9\u304f\u62e1\u5f35\u6027\u3068\u67d4\u8edf\u6027\u304c\u9ad8\u3044\u3002\u6700\u3082\u30b7\u30a7\u30a2\u304c\u9ad8\u3044DBMS\u3002<\/li>\r\n\t<li><strong>PostgreSQL<\/strong> <br \/>\r\n\u9ad8\u3044\u4fe1\u983c\u6027\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u6301\u3063\u3066\u3044\u308b\u304c\u4f7f\u3044\u65b9\u304c\u591a\u5c11\u96e3\u3057\u3044\u3002<\/li>\r\n\t<li><strong>SQLite<\/strong> <br \/>\r\n\u5c0f\u3055\u304f\u8efd\u91cf\u3067\u65e9\u3044\u30de\u30eb\u30c1\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3002\u30c7\u30fc\u30bf\u578b\u3092\u6307\u5b9a\u3057\u306a\u3044\u3002<\/li>\r\n<\/ul>\r\n<p><!-- notionvc: 2c5aa70f-fac7-4021-8c16-f807f4c00e44 --><\/p>\n\n<h2>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406<\/h2>\n<p>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3068\u306f\u3001\u4e00\u9023\u306e\u64cd\u4f5c\u3092\u4e00\u3064\u306e\u5358\u4f4d\u3068\u3057\u3066\u6271\u3044\u3001\u5168\u3066\u306e\u64cd\u4f5c\u304c\u5b8c\u4e86\u3059\u308b\u304b\u3001\u3042\u308b\u3044\u306f\u4e00\u3064\u3067\u3082\u5931\u6557\u3059\u308c\u3070\u5168\u3066\u306e\u64cd\u4f5c\u304c\u306a\u304b\u3063\u305f\u3053\u3068\u306b\u3059\u308b\uff08\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\u3059\u308b\uff09\u6a5f\u80fd\u3092\u6307\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u306e\u6574\u5408\u6027\u3068\u5b89\u5168\u6027\u304c\u4fdd\u305f\u308c\u307e\u3059\u3002<\/p>\r\n<p><img decoding=\"async\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.41.18.png\" alt=\"\" width=\"934\" height=\"392\" class=\"alignnone size-full wp-image-4918\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.41.18.png 934w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.41.18-300x126.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.41.18-768x322.png 768w\" sizes=\"(max-width: 934px) 100vw, 934px\" \/><\/p>\r\n<p>\u4f8b\u3048\u3070\u3001\u4e0a\u8a18\u306e\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u3067SQL\u2461\u306e\u65b9\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3059\u308b\u3068SQL\u2460\u306e\u547d\u4ee4\u3082\u524a\u9664\u3055\u308c\u307e\u3059\u3002<\/p>\r\n<p><img decoding=\"async\" src=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.43.01.png\" alt=\"\" width=\"944\" height=\"426\" class=\"alignnone size-full wp-image-4919\" srcset=\"https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.43.01.png 944w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.43.01-300x135.png 300w, https:\/\/since2020.jp\/media\/wp-content\/uploads\/2024\/04\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2024-04-25-11.43.01-768x347.png 768w\" sizes=\"(max-width: 944px) 100vw, 944px\" \/><\/p>\r\n<p>\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u306f\u3001\u539f\u5b50\u6027\u3001\u4e00\u8cab\u6027\u3001\u9694\u96e2\u6027\u3001\u6301\u7d9a\u6027\u306e4\u3064\u306e\u57fa\u672c\u7684\u7279\u6027\uff08ACID\u7279\u6027\uff09\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u51e6\u7406\u306e\u4fe1\u983c\u6027\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u8981\u7d20\u3067\u3059\u3002<\/p>\n\n<h2>\u304a\u308f\u308a\u306b<\/h2>\n<p>\u30c7\u30fc\u30bf\u3092\u57fa\u76e4\u3068\u3057\u305f\u610f\u601d\u6c7a\u5b9a\u304c\u5897\u3048\u308b\u73fe\u4ee3\u306b\u304a\u3044\u3066\u3001DB\u3068SQL\u306e\u7406\u89e3\u306f\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002\u9069\u5207\u306aDBMS\u306e\u9078\u629e\u3068\u52b9\u7387\u7684\u306a\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u306f\u3001\u30d3\u30b8\u30cd\u30b9\u306e\u6210\u529f\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002\u4eca\u56de\u306e\u8a18\u4e8b\u304c\u3001DBMS\u3068SQL\u306e\u57fa\u672c\u304b\u3089\u5fdc\u7528\u307e\u3067\u306e\u7406\u89e3\u306e\u52a9\u3051\u306b\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>SQL\u3068DBMS\u306e\u7406\u89e3\u3092\u6df1\u3081\u308b\u3053\u3068\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u6280\u8853\u306e\u52b9\u679c\u7684\u306a\u6d3b\u7528\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9(DB)\u3068SQL\u306e\u57fa\u672c\u7684\u306a\u95a2\u4fc2\u6027\u304b\u3089\u3001\u7570\u306a\u308bDBMS\u306e\u7a2e\u985e\u3001\u30c8\u30e9\u30f3\u30b6\u30af\u30b7\u30e7\u30f3\u7ba1\u7406\u307e\u3067\u306e\u5e83\u7bc4\u306a\u30ac\u30a4\u30c9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002 [&hellip;]<\/p>\n","protected":false},"author":62,"featured_media":4920,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"content-type":"","swell_btn_cv_data":"","footnotes":"","_wp_rev_ctl_limit":""},"categories":[1249],"tags":[528,512,604,513,148,464,605],"class_list":["post-4915","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge","tag-db","tag-mysql","tag-postgresql","tag-rdbms","tag-sql","tag-sqlite","tag-605"],"_links":{"self":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/4915","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/users\/62"}],"replies":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/comments?post=4915"}],"version-history":[{"count":0,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/posts\/4915\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media\/4920"}],"wp:attachment":[{"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/media?parent=4915"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/categories?post=4915"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/since2020.jp\/media\/wp-json\/wp\/v2\/tags?post=4915"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}