{"version":"1.0","published":"2019-12-19 23:29:57","categories":["C#","EntityFramework Core"],"blog_title":"\u30e1\u30e2\u7684\u306a\u601d\u8003\u7684\u306a","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/t/thinkAmi/20191219/20191219231529.png","type":"rich","author_name":"thinkAmi","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","description":"EntityFramework Core (\u4ee5\u964d\u3001EF Core)\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u898b\u3066\u3044\u305f\u3068\u3053\u308d\u3001C#8.0\u4ee5\u964d\u306enull\u8a31\u5bb9\u53c2\u7167\u578b\u6a5f\u80fd\u306b\u3088\u308a\u3001NOT NULL\u5236\u7d04\u306e\u4ed8\u304d\u65b9\u304c\u5909\u308f\u308b\u3088\u3046\u3067\u3057\u305f\u3002 \u5fc5\u9808\u304a\u3088\u3073\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30d7\u30ed\u30d1\u30c6\u30a3-EF Core | Microsoft Docs \u305d\u3053\u3067\u4eca\u56de\u3001null\u8a31\u5bb9\u53c2\u7167\u578b\u6a5f\u80fd\u306e\u6709\u52b9\u30fb\u7121\u52b9\u3054\u3068\u306b\u3001\u3069\u3093\u306a\u611f\u3058\u306b\u306a\u308b\u306e\u304b\u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002 \u76ee\u6b21 \u74b0\u5883 null\u8a31\u5bb9\u53c2\u7167\u578b\u306b\u5bfe\u3059\u308b\u8a2d\u5b9a\u306b\u3064\u3044\u3066 \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u30d5\u30a1\u30a4\u30eb (*.csproj) \u3067\u306e\u8a2d\u5b9a nullable\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u306e\u5834\u5408 \u7528\u610f\u3057\u305f\u30e2\u30c7\u30eb\u30b3\u30fc\u30c9 null\u8a31\u5bb9\u53c2\u7167\u578b\u6a5f\u80fd\u3092\u7121\u52b9\u306b\u3057\u305f\u307e\u307e\u306e\u5834\u5408(\u30c7\u30d5\u30a9\u30eb\u30c8) n\u2026","blog_url":"https://thinkami.hatenablog.com/","title":"EntityFramework Core 3.1 \u306b\u3066\u3001null\u8a31\u5bb9\u53c2\u7167\u578b\u6a5f\u80fd\u306e\u6709\u52b9\u30fb\u7121\u52b9\u3054\u3068\u306b\u3001NOT NULL\u5236\u7d04\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u3066\u307f\u305f","author_url":"https://blog.hatena.ne.jp/thinkAmi/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fthinkami.hatenablog.com%2Fentry%2F2019%2F12%2F19%2F232957\" title=\"EntityFramework Core 3.1 \u306b\u3066\u3001null\u8a31\u5bb9\u53c2\u7167\u578b\u6a5f\u80fd\u306e\u6709\u52b9\u30fb\u7121\u52b9\u3054\u3068\u306b\u3001NOT NULL\u5236\u7d04\u306e\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u3066\u307f\u305f - \u30e1\u30e2\u7684\u306a\u601d\u8003\u7684\u306a\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","url":"https://thinkami.hatenablog.com/entry/2019/12/19/232957","height":"190"}