{"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2022%2F10%2F09%2F222256\" title=\" \u6539\u884c\u3092\u542b\u3080\u30c7\u30fc\u30bf\u306e\u79fb\u9001 - HTN20190109\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>","provider_name":"Hatena Blog","blog_title":"HTN20190109\u306e\u65e5\u8a18","width":"100%","blog_url":"https://htn20190109.hatenablog.com/","provider_url":"https://hatena.blog","categories":["DB"],"published":"2022-10-09 22:22:56","title":" \u6539\u884c\u3092\u542b\u3080\u30c7\u30fc\u30bf\u306e\u79fb\u9001","url":"https://htn20190109.hatenablog.com/entry/2022/10/09/222256","type":"rich","height":"190","version":"1.0","author_name":"HTN20190109","description":"MySQL (8.0.29) tab1 -> \u79fb\u884c\u5143(\u6539\u884c\u7f6e\u63db\u524d)tab2 -> \u79fb\u884c\u5143(\u6539\u884c\u7f6e\u63db\u5f8c)tab3 -> \u79fb\u884c\u5148(\u6539\u884c\u7f6e\u63db\u5f8c)tab4 -> \u79fb\u884c\u5148(\u6539\u884c\u7f6e\u63db\u524d) drop table tab1 ;create table tab1(col1 int primary key ,col2 datetime(0) ,col3 datetime(6) ,col4 varchar(100) ); drop table tab2 ;create table tab2(col1 int primary key ,col2 datetime(0) ,col3 datetime(6) ,col4 \u2026","author_url":"https://blog.hatena.ne.jp/HTN20190109/"}