{"url":"https://htn20190109.hatenablog.com/entry/2021/03/23/235021","title":"\u5916\u90e8\u7d50\u5408\u306b\u3088\u308b\u7d50\u5408\u9806\u306e\u5236\u7d04(NL)","width":"100%","categories":["DB"],"provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2021%2F03%2F23%2F235021\" title=\"\u5916\u90e8\u7d50\u5408\u306b\u3088\u308b\u7d50\u5408\u9806\u306e\u5236\u7d04(NL) - 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>","published":"2021-03-23 23:50:21","provider_name":"Hatena Blog","image_url":null,"blog_title":"HTN20190109\u306e\u65e5\u8a18","type":"rich","height":"190","description":"MySQL (8.0.18) -- \u30c7\u30fc\u30bf\u6e96\u5099drop table tab1;drop table tab2; create table tab1(col1 int,col2 int);create table tab2(col1 int,col2 int); create index ind12 on tab1(col2);create index ind22 on tab2(col2); alter table tab1 add constraint tab1pk primary key(col1);alter table tab2 add constraint tab2pk primar\u2026","blog_url":"https://htn20190109.hatenablog.com/","author_url":"https://blog.hatena.ne.jp/HTN20190109/","version":"1.0","author_name":"HTN20190109"}