{"type":"rich","description":"MySQL (8.0.29)https://www.yoheim.net/blog.php?q=20190103 drop table tab1;create table tab1(col1 int primary key,col2 int);insert into tab1 values(1,1);insert into tab1 values(2,2);insert into tab1 values(3,NULL); select * from tab1 order by col2 asc;select * from tab1 order by col2 desc; NULLS FIRST\u2026","version":"1.0","image_url":null,"title":"NULL\u306e\u30bd\u30fc\u30c8\u9806","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhtn20190109.hatenablog.com%2Fentry%2F2022%2F09%2F04%2F211911\" title=\"NULL\u306e\u30bd\u30fc\u30c8\u9806 - 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>","categories":["DB"],"width":"100%","blog_title":"HTN20190109\u306e\u65e5\u8a18","provider_url":"https://hatena.blog","height":"190","author_url":"https://blog.hatena.ne.jp/HTN20190109/","author_name":"HTN20190109","url":"https://htn20190109.hatenablog.com/entry/2022/09/04/211911","provider_name":"Hatena Blog","published":"2022-09-04 21:19:11","blog_url":"https://htn20190109.hatenablog.com/"}