{"provider_url":"https://hatena.blog","author_name":"HTN20190109","width":"100%","description":"Oracle create index ind1 on tab1(col1);create index ind21 on tab2(col2); MySQL alter table tab7 add primary key(col1);alter table tab7 add index ind71 (col2);alter table tab7 add unique ind72(col3); alter table tab6 add index ind63(col2); --\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u30a4\u30f3\u30c7\u30c3\u30af\u30b9alter table tab6 add index ind64(col2(1)); cre\u2026","type":"rich","provider_name":"Hatena Blog","blog_url":"https://htn20190109.hatenablog.com/","categories":["DB"],"published":"2019-01-29 00:12:13","title":"\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f5c\u6210","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2019%2F01%2F29%2F001213\" title=\"\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u4f5c\u6210 - 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/2019/01/29/001213","height":"190","version":"1.0","blog_title":"HTN20190109\u306e\u65e5\u8a18","author_url":"https://blog.hatena.ne.jp/HTN20190109/"}