{"published":"2021-06-15 12:00:00","provider_url":"https://hatena.blog","title":"MySQL5.6\u306b\u304a\u3051\u308bdatetime\u306e\u6319\u52d5\u3092\u5b9f\u969b\u306b\u8a66\u3057\u3066\u307f\u305f","url":"https://tech.excite.co.jp/entry/2021/06/15/120000","version":"1.0","author_name":"b_murabito","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech.excite.co.jp%2Fentry%2F2021%2F06%2F15%2F120000\" title=\"MySQL5.6\u306b\u304a\u3051\u308bdatetime\u306e\u6319\u52d5\u3092\u5b9f\u969b\u306b\u8a66\u3057\u3066\u307f\u305f - \u30a8\u30ad\u30b5\u30a4\u30c8 TechBlog.\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://tech.excite.co.jp/","author_url":"https://blog.hatena.ne.jp/b_murabito/","provider_name":"Hatena Blog","width":"100%","image_url":null,"categories":[],"type":"rich","height":"190","description":"\u306f\u3058\u3081\u306b MySQL5.6\u306b\u304a\u3051\u308bdatetime\u306e\u6319\u52d5\u3067\uff1f\uff1f\uff1f\u3063\u3066\u306a\u3063\u305f\u306e\u3067\u3001\u4ed5\u69d8\u3092\u78ba\u8a8d\u3057\u3064\u3064\u3001\u5b9f\u969b\u306b\u6319\u52d5\u3092\u78ba\u304b\u3081\u3066\u307f\u307e\u3057\u305f\u3002 datetime\u306e\u4ed5\u69d8 \u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306b\u95a2\u3057\u3066\u306f\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3053\u306e\u3088\u3046\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002 DATETIME \u306f\u3001NOT NULL \u5c5e\u6027\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u304e\u308a (\u3053\u306e\u5834\u5408\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306f 0 \u3067\u3059)\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306f NULL \u3067\u3059\u3002 SELECT\u306b\u95a2\u3057\u3066\u306f\u3001\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u3053\u306e\u3088\u3046\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002 NOT NULL \u3068\u3057\u3066\u5ba3\u8a00\u3055\u308c\u305f DATE \u304a\u3088\u3073 DATETIME \u30ab\u30e9\u30e0\u3067\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u7279\u6b8a\u306a\u65e5\u4ed8 '0000-00-00' \u3092\u691c\u7d22\u2026","blog_title":"\u30a8\u30ad\u30b5\u30a4\u30c8 TechBlog."}