{"description":"Oracle create database link dblink1 connect to test identified by test using 'orcl'; select * from dba_db_links; select * from v$instance@dblink1; MySQL https://qiita.com/shigekid/items/a087cdd5d0c074859688 vim /etc/my.cnf [mysqld]federated=1 show engines; CREATE TABLE `tab1f` ( `col1` int(11) DEFAU\u2026","published":"2019-03-10 00:37:51","blog_url":"https://htn20190109.hatenablog.com/","type":"rich","provider_url":"https://hatena.blog","version":"1.0","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2019%2F03%2F10%2F003751\" title=\"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30ea\u30f3\u30af - 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>","width":"100%","author_url":"https://blog.hatena.ne.jp/HTN20190109/","blog_title":"HTN20190109\u306e\u65e5\u8a18","title":"\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30ea\u30f3\u30af","url":"https://htn20190109.hatenablog.com/entry/2019/03/10/003751","image_url":null,"height":"190","categories":["DB"],"author_name":"HTN20190109"}