{"image_url":null,"description":"MySQL (8.0.27) drop table tab1;create table tab1(col1 int); select table_name ,table_rows ,avg_row_length ,data_length ,index_lengthfrom information_schema.tableswhere table_schema = database()and table_name = 'tab1'; \u30c6\u30fc\u30d6\u30eb\u4f5c\u6210\u6642\u300116kB\u306e\u30b5\u30a4\u30ba\u304c\u3042\u308b Oracle (19c) show parameter deferred_segment_creation -- 1. de\u2026","title":"\u30c7\u30fc\u30bf\u30bb\u30b0\u30e1\u30f3\u30c8\u304c\u4f5c\u6210\u3055\u308c\u308b\u30bf\u30a4\u30df\u30f3\u30b0","provider_url":"https://hatena.blog","blog_url":"https://htn20190109.hatenablog.com/","published":"2021-11-30 02:34:07","version":"1.0","author_url":"https://blog.hatena.ne.jp/HTN20190109/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2021%2F11%2F30%2F023407\" title=\"\u30c7\u30fc\u30bf\u30bb\u30b0\u30e1\u30f3\u30c8\u304c\u4f5c\u6210\u3055\u308c\u308b\u30bf\u30a4\u30df\u30f3\u30b0 - 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_name":"HTN20190109","categories":["DB"],"blog_title":"HTN20190109\u306e\u65e5\u8a18","provider_name":"Hatena Blog","height":"190","url":"https://htn20190109.hatenablog.com/entry/2021/11/30/023407","type":"rich"}