{"title":"\u4eee\u60f3\u5217","type":"rich","width":"100%","provider_name":"Hatena Blog","image_url":null,"blog_url":"https://htn20190109.hatenablog.com/","height":"190","description":"MySQL (5.7)\u751f\u6210\u30ab\u30e9\u30e0 1. \u30c7\u30a3\u30b9\u30af\u306b\u683c\u7d0d\u3055\u308c\u308b\u5834\u5408 STORED\u30aa\u30d7\u30b7\u30e7\u30f3 drop table tab1;create table tab1(col1 varchar(10),col2 varchar(10),col3 varchar(21) as (concat(col1,' ',col2) ) stored); insert into tab1(col1,col2) values('Test','Taro');select * from tab1; create index ind1 on tab1(col3);\u2192\u8a08\u7b97\u5217\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f5c\u6210\u53ef\u80fd 2. \u30c7\u30a3\u30b9\u30af\u306b\u683c\u7d0d\u3055\u308c\u306a\u3044\u5834\u2026","author_url":"https://blog.hatena.ne.jp/HTN20190109/","author_name":"HTN20190109","url":"https://htn20190109.hatenablog.com/entry/2020/05/28/213919","categories":["DB"],"blog_title":"HTN20190109\u306e\u65e5\u8a18","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2020%2F05%2F28%2F213919\" title=\"\u4eee\u60f3\u5217 - 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>","version":"1.0","published":"2020-05-28 21:39:19"}