{"provider_url":"https://hatena.blog","image_url":null,"type":"rich","version":"1.0","width":"100%","blog_title":"mtoyoshi\u958b\u767a\u30e1\u30e2","provider_name":"Hatena Blog","height":"190","url":"https://mtoyoshi.hateblo.jp/entry/20090720/1248097655","categories":["GAE/J"],"title":"\u30ad\u30fc\u306b\u3088\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u53d6\u5f97","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmtoyoshi.hateblo.jp%2Fentry%2F20090720%2F1248097655\" title=\"\u30ad\u30fc\u306b\u3088\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u53d6\u5f97 - mtoyoshi\u958b\u767a\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/mtoyoshi/","description":"RDBMS\u3067\u3044\u3046\u3068\u3053\u308d\u306e\u4e3b\u30ad\u30fc\u306b\u3088\u308b\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u306e\u53d6\u5f97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u5b66\u7fd2\u3057\u305f\u306e\u3067\u30e1\u30e2\u3002Google\u306e\u8aac\u660e\uff08\u82f1\u8a9e\uff09\u306f\u2193\u3002 http://code.google.com/intl/en/appengine/docs/java/datastore/creatinggettinganddeletingdata.html \u4e3b\u30ad\u30fc\u306e\u8a2d\u5b9a \u5168\u90e8\u30674\u7a2e\u985e\u3042\u308b\u3002 Long String Key Encoded String \u6700\u5f8c\u306e\u306f\u3061\u3087\u3063\u3068\u3088\u304f\u5206\u304b\u3089\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u3053\u3053\u3067\u306f\u4e00\u65e6\u30d1\u30b9\u3002 one-to-many\u306e\u95a2\u9023\u3092\u4f5c\u308b\u6642\u306f\u3001\u4e21\u65b9\u3068\u3082Key\u306b\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u307f\u305f\u3044\u306a\u306e\u3067\u3001\u304a\u305d\u3089\u304fString\u3084Long\u3088\u308a\u3082Key\u30aa\u30d6\u2026","author_name":"mtoyoshi","published":"2009-07-20 22:47:35","blog_url":"https://mtoyoshi.hateblo.jp/"}