{"image_url":null,"blog_title":"\u8eca\u8f2a\u306ex\u767a\u660e ~B.G's Blog~","published":"2025-07-19 21:00:00","blog_url":"https://bg1.hatenablog.com/","width":"100%","type":"rich","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fbg1.hatenablog.com%2Fentry%2F2025%2F07%2F19%2F210000\" title=\"MIN - \u8eca\u8f2a\u306ex\u767a\u660e ~B.G&#39;s Blog~\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","description":"MIN\u3067\u6700\u5c0f\u5024\u3092\u53d6\u5f97\u3059\u308b\u3002https://www.postgresql.jp/docs/9.4/functions-aggregate.html postgresdb1=# SELECT * FROM products; id | name | price | tax | quantity | discount ----+------------+--------+-------+----------+---------- 1 | \u30da\u30f3 | 100.00 | 10.00 | 50 | 5.00 2 | \u30ce\u30fc\u30c8 | 200.00 | 10.00 | 10 | 3.00 3 | \u30da\u30f3\u30b1\u30fc\u30b9 | 2\u2026","author_name":"BG1","version":"1.0","url":"https://bg1.hatenablog.com/entry/2025/07/19/210000","title":"MIN","categories":["PostgreSQL"],"author_url":"https://blog.hatena.ne.jp/BG1/","height":"190","provider_url":"https://hatena.blog"}