{"image_url":null,"categories":["\u30b5\u30dd\u30fc\u30c8topics"],"description":"\u305d\u3046\u3044\u3048\u3070\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u5b9a\u7fa9\u3067primary\u3092\u4e00\u3064\u3082\u6307\u5b9a\u3057\u306a\u3044\u3068\u3001\u4e2d\u8eab\u304c\u7a7a\u306ePRIMARY KEY()\u3068\u3044\u3046\u30ab\u30e9\u30e0\u304cSQL\u6587\u306e\u4e2d\u306b\u51fa\u3066\u304f\u308b\u306e\u3067\u3059\u304c ex) CREATE TABLE User_keyword_table(PRIMARY KEY(), user_id VARCHAR(255), keyword VARCHAR(255), tfidf_value REAL ); \u3053\u308c\u306f\u30d0\u30b0\u3067\u3057\u3087\u3046\u304b?MySQL\u3067\u306fPRIMARY KEY()\u3068\u3044\u3046\u3084\u3064\u3092\u6d88\u3059\u3068\u3059\u3093\u306a\u308a\u901a\u308a\u307e\u3059\u304c\u3001\u305d\u3046\u3058\u3083\u306a\u3044\u3068\u901a\u308a\u307e\u305b\u3093\u3002 CROSSFIRE O/R\u3067\u306f\u3001\u30d7\u30e9\u30a4\u30de\u30ea\u30fc\u30ad\u30fc\u306f\u30c6\u30fc\u30d6\u30eb\u306b\u4e00\u3064\u5fc5\u305a\u8a2d\u5b9a\u3059\u308b\u4ed5\u69d8\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u2026","title":"\u30d7\u30e9\u30a4\u30de\u30ea\u30ad\u30fc\u306e\u8a2d\u5b9a\u306b\u3064\u3044\u3066","published":"2006-04-11 23:48:57","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fi-zuka.hatenadiary.org%2Fentry%2F20060411%2F1144766937\" title=\"\u30d7\u30e9\u30a4\u30de\u30ea\u30ad\u30fc\u306e\u8a2d\u5b9a\u306b\u3064\u3044\u3066 - CROSSFIRE DB\u3068\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","type":"rich","author_url":"https://blog.hatena.ne.jp/i-zuka/","author_name":"i-zuka","blog_title":"CROSSFIRE DB\u3068\u30b3\u30f3\u30d1\u30a4\u30e9\u306e\u65e5\u8a18","provider_url":"https://hatena.blog","blog_url":"https://i-zuka.hatenadiary.org/","url":"https://i-zuka.hatenadiary.org/entry/20060411/1144766937","provider_name":"Hatena Blog","version":"1.0","width":"100%","height":"190"}