{"version":"1.0","published":"2019-04-04 00:02:23","description":"Oracle http://www.undercoverlog.com/entry/2018/07/19/Oracle_CBO%E3%83%88%E3%83%AC%E3%83%BC%E3%82%B9%2810053%29%E3%81%AE%E5%8F%96%E5%BE%97 alter system flush shared_pool;alter session set TRACEFILE_IDENTIFIER = 'trace2';alter session set events '10053 trace name context forever, level 1';select * fro\u2026","title":"\u30aa\u30d7\u30c6\u30a3\u30de\u30a4\u30b6\u30c8\u30ec\u30fc\u30b9","blog_title":"HTN20190109\u306e\u65e5\u8a18","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2019%2F04%2F04%2F000223\" title=\"\u30aa\u30d7\u30c6\u30a3\u30de\u30a4\u30b6\u30c8\u30ec\u30fc\u30b9 - 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>","type":"rich","blog_url":"https://htn20190109.hatenablog.com/","image_url":null,"url":"https://htn20190109.hatenablog.com/entry/2019/04/04/000223","author_name":"HTN20190109","height":"190","author_url":"https://blog.hatena.ne.jp/HTN20190109/","provider_url":"https://hatena.blog","width":"100%","categories":["DB"]}