{"author_url":"https://blog.hatena.ne.jp/aipacommander/","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Faipacommander.com%2Fentry%2F2015%2F05%2F30%2F101610\" title=\"\u3010MySQL\u3011\u30c6\u30fc\u30d6\u30eb\u306e\u30ab\u30e9\u30e0\u3092\u524a\u9664\u3059\u308b - IT\u306e\u968a\u9577\u306e\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","width":"100%","provider_url":"https://hatena.blog","blog_title":"IT\u306e\u968a\u9577\u306e\u30d6\u30ed\u30b0","height":"190","url":"https://aipacommander.com/entry/2015/05/30/101610","author_name":"aipacommander","image_url":"https://cdn.user.blog.st-hatena.com/default_entry_og_image/98194825/1514241549987688","blog_url":"https://aipacommander.com/","version":"1.0","title":"\u3010MySQL\u3011\u30c6\u30fc\u30d6\u30eb\u306e\u30ab\u30e9\u30e0\u3092\u524a\u9664\u3059\u308b","categories":["MySQL"],"published":"2015-05-30 10:16:10","description":"alter\u306e\u30b3\u30de\u30f3\u30c9\u3001\u691c\u7d22\u3057\u306a\u304f\u3066\u3082\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304d\u305f\u308f\u3002 \u30ab\u30e9\u30e0\u3092\u524a\u9664 mysql> alter table [table_name \u30c6\u30fc\u30d6\u30eb\u3092\u6307\u5b9a] drop [column \u524a\u9664\u3057\u305f\u3044\u30ab\u30e9\u30e0\u540d]; \u8907\u6570 mysql> alter table [table_name] drop [column], drop [column2], drop [column3];"}