{"height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2020%2F02%2F23%2F211230\" title=\"exp/imp\u30c4\u30fc\u30eb\u30ab\u30e9\u30e0\u5f71\u97ff - 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>","url":"https://htn20190109.hatenablog.com/entry/2020/02/23/211230","categories":["DB"],"image_url":null,"author_url":"https://blog.hatena.ne.jp/HTN20190109/","width":"100%","author_name":"HTN20190109","blog_title":"HTN20190109\u306e\u65e5\u8a18","blog_url":"https://htn20190109.hatenablog.com/","provider_url":"https://hatena.blog","version":"1.0","provider_name":"Hatena Blog","type":"rich","title":"exp/imp\u30c4\u30fc\u30eb\u30ab\u30e9\u30e0\u5f71\u97ff","published":"2020-02-23 21:12:30","description":"MySQL (5.6)(5.7)(8) --\u78ba\u8a8d\u4e8b\u9805\u30c0\u30f3\u30d7\u53d6\u5f97\u5f8c\u3001\u30ab\u30e9\u30e0\u8ffd\u52a0\u3057\u305f\u30c6\u30fc\u30d6\u30eb\u3078\u30c0\u30f3\u30d7\u304b\u3089\u30ea\u30b9\u30c8\u30a2\u3067\u304d\u308b\u304b --\u30c6\u30fc\u30d6\u30eb\u4f5c\u6210drop table tab1;create table tab1(col1 int);alter table tab1 add constraint cons1 primary key(col11);insert into tab1 values(1);select * from tab1; --\u30c7\u30fc\u30bf\u306e\u307f\u30c0\u30f3\u30d7\u53d6\u5f97\\! mysqldump -uroot -p -t test tab1 > tab1.dmp --\u30ab\u30e9\u30e0\u8ffd\u52a0alter table tab1 ad\u2026"}