{"id":26840,"date":"2024-03-17T08:14:01","date_gmt":"2024-03-16T23:14:01","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/mysql%e3%81%a7%e3%83%95%e3%82%a3%e3%83%bc%e3%83%ab%e3%83%89%e3%81%ab%e3%82%a4%e3%83%b3%e3%83%87%e3%83%83%e3%82%af%e3%82%b9%e3%82%92%e8%bf%bd%e5%8a%a0%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af\/"},"modified":"2024-03-22T14:48:50","modified_gmt":"2024-03-22T05:48:50","slug":"mysql%e3%81%a7%e3%83%95%e3%82%a3%e3%83%bc%e3%83%ab%e3%83%89%e3%81%ab%e3%82%a4%e3%83%b3%e3%83%87%e3%83%83%e3%82%af%e3%82%b9%e3%82%92%e8%bf%bd%e5%8a%a0%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/mysql%e3%81%a7%e3%83%95%e3%82%a3%e3%83%bc%e3%83%ab%e3%83%89%e3%81%ab%e3%82%a4%e3%83%b3%e3%83%87%e3%83%83%e3%82%af%e3%82%b9%e3%82%92%e8%bf%bd%e5%8a%a0%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95%e3%81%af\/","title":{"rendered":"mysql\u3067\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>MySQL\u3067\u306f\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5\u306f2\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li>\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u969b\u306b\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\uff1a\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210\u6642\u306b\u3001CREATE TABLE\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30e6\u30fc\u30b6\u30fc\u3068\u3044\u3046\u540d\u524d\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u3001username\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u4e00\u610f\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u5834\u5408\u3001\u6b21\u306e\u4f8b\u6587\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>CREATE TABLE users (\r\n  id INT PRIMARY KEY AUTO_INCREMENT,\r\n  username VARCHAR(50) NOT NULL,\r\n  email VARCHAR(50) NOT NULL,\r\n  INDEX idx_username (username),\r\n  UNIQUE INDEX idx_email (email)\r\n);\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306f\u3001INDEX\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u4e00\u822c\u7684\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u5b9a\u7fa9\u3057\u3001UNIQUE INDEX\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u30e6\u30cb\u30fc\u30af\u306a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li>ALTER TABLE\u6587\u3092\u4f7f\u7528\u3057\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\uff1a\u65e2\u306b\u30c6\u30fc\u30d6\u30eb\u304c\u4f5c\u6210\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001ALTER TABLE\u6587\u3092\u4f7f\u7528\u3057\u3066\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001users\u30c6\u30fc\u30d6\u30eb\u306eusername\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u901a\u5e38\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u4f8b\u6587\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code>ALTER TABLE users ADD INDEX idx_username (username);\r\n<\/code><\/pre>\n<p>\u4e0a\u8a18\u306e\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u306f\u3001ADD INDEX\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3001idx_username\u3068\u3044\u3046\u540d\u524d\u306e\u901a\u5e38\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u666e\u901a\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3084\u30e6\u30cb\u30fc\u30af\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4ee5\u5916\u306b\u3082\u3001FULLTEXT\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3084\u7a7a\u9593\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306a\u3069\u306e\u7a2e\u985e\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u8a73\u7d30\u306fMySQL\u306e\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u3067\u306f\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5\u306f2\u3064\u3042\u308a\u307e\u3059\u3002 \u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u969b\u306b\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\uff1a\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210\u6642\u306b\u3001CREATE TABLE\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30a4\u30f3\u30c7\u30c3\u30af [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-26840","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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content=\"MySQL\u3067\u306f\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5\u306f2\u3064\u3042\u308a\u307e\u3059\u3002 \u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u969b\u306b\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\uff1a\u30c6\u30fc\u30d6\u30eb\u306e\u4f5c\u6210\u6642\u306b\u3001CREATE TABLE\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30a4\u30f3\u30c7\u30c3\u30af [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/mysql\u3067\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u65b9\u6cd5\u306f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-16T23:14:01+00:00\" \/>\n<meta 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