{"id":95154,"date":"2024-03-21T18:53:59","date_gmt":"2024-03-21T09:53:59","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/mysql%e3%81%a7%e3%82%ab%e3%83%a9%e3%83%a0%e5%90%8d%e3%82%92%e5%a4%89%e6%9b%b4%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-04-04T07:52:36","modified_gmt":"2024-04-03T22:52:36","slug":"mysql%e3%81%a7%e3%82%ab%e3%83%a9%e3%83%a0%e5%90%8d%e3%82%92%e5%a4%89%e6%9b%b4%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/mysql%e3%81%a7%e3%82%ab%e3%83%a9%e3%83%a0%e5%90%8d%e3%82%92%e5%a4%89%e6%9b%b4%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"mysql\u3067\u30ab\u30e9\u30e0\u540d\u3092\u5909\u66f4\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>MySQL\u3067\u306f\u3001ALTER TABLE\u6587\u3092\u7528\u3044\u3066\u30ab\u30e9\u30e0\u540d\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e0b\u8a18\u306e\u6587\u3092\u65e5\u672c\u8a9e\u3067\u8a00\u3044\u63db\u3048\u3066\u304f\u3060\u3055\u3044\uff081\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u307f\u304c\u5fc5\u8981\u3067\u3059\uff09\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">ALTER<\/span> <span class=\"hljs-keyword\">TABLE<\/span> table_name CHANGE column_name new_column_name data_type;\r\n<\/code><\/pre>\n<p>\u30c6\u30fc\u30d6\u30eb\u540d\u3001\u5143\u306e\u30ab\u30e9\u30e0\u540d\u3001\u65b0\u3057\u3044\u30ab\u30e9\u30e0\u540d\u3001\u30c7\u30fc\u30bf\u30bf\u30a4\u30d7\u306e\u9806\u756a\u3067\u6307\u5b9a\u3059\u308b<\/p>\n<p>\u672c\u4eba\u306b\u9023\u7d61\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>users\u3068\u3044\u3046\u540d\u524d\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u3042\u308b\u3068\u4eee\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">CREATE<\/span> <span class=\"hljs-keyword\">TABLE<\/span> users (\r\n  id <span class=\"hljs-type\">INT<\/span> AUTO_INCREMENT <span class=\"hljs-keyword\">PRIMARY<\/span> KEY,\r\n  firstname <span class=\"hljs-type\">VARCHAR<\/span>(<span class=\"hljs-number\">100<\/span>),\r\n  lastname <span class=\"hljs-type\">VARCHAR<\/span>(<span class=\"hljs-number\">100<\/span>),\r\n  email <span class=\"hljs-type\">VARCHAR<\/span>(<span class=\"hljs-number\">100<\/span>)\r\n);\r\n<\/code><\/pre>\n<p>FIRSTNAME\u30ab\u30e9\u30e0\u540d\u3092first_name\u306b\u5909\u66f4\u3059\u308b\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">ALTER<\/span> <span class=\"hljs-keyword\">TABLE<\/span> users CHANGE firstname first_name <span class=\"hljs-type\">VARCHAR<\/span>(<span class=\"hljs-number\">100<\/span>);\r\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u306e\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001users\u30c6\u30fc\u30d6\u30eb\u306e\u69cb\u6210\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">CREATE<\/span> <span class=\"hljs-keyword\">TABLE<\/span> users (\r\n  id <span class=\"hljs-type\">INT<\/span> AUTO_INCREMENT <span class=\"hljs-keyword\">PRIMARY<\/span> KEY,\r\n  first_name <span class=\"hljs-type\">VARCHAR<\/span>(<span class=\"hljs-number\">100<\/span>),\r\n  lastname <span class=\"hljs-type\">VARCHAR<\/span>(<span class=\"hljs-number\">100<\/span>),\r\n  email <span class=\"hljs-type\">VARCHAR<\/span>(<span class=\"hljs-number\">100<\/span>)\r\n);\r\n<\/code><\/pre>\n<p>\u30d5\u30a3\u30fc\u30eb\u30c9\u540d\u3092\u5909\u66f4\u3059\u308c\u3070\u3001\u30c7\u30fc\u30bf\u578b\u3082\u540c\u69d8\u306b\u5909\u66f4\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u3067\u306f\u3001ALTER TABLE\u6587\u3092\u7528\u3044\u3066\u30ab\u30e9\u30e0\u540d\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002 \u4e0b\u8a18\u306e\u6587\u3092\u65e5\u672c\u8a9e\u3067\u8a00\u3044\u63db\u3048\u3066\u304f\u3060\u3055\u3044\uff081\u3064\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u307f\u304c\u5fc5\u8981\u3067\u3059\uff09\uff1a ALTER TABLE table_name CHANGE column [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-95154","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) - 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