{"title":"Snowflake NULL\u306e\u6271\u3044\u306b\u3064\u3044\u3066\u5168\u90e8\u307e\u3068\u3081\u3066\u307f\u305f\uff01","author_name":"oneTossiy","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/h/hakuhodody-one/20260707/20260707090014.png","height":"190","version":"1.0","type":"rich","provider_url":"https://hatena.blog","description":"\u3053\u3093\u306b\u3061\u306f\uff01oneTossiy\u3067\u3059\ud83d\udc53 \u4eca\u56de\u306e\u8a18\u4e8b\u3067\u306fSnowflake\u306b\u304a\u3051\u308b\u300eNULL\u300f\u306e\u6271\u3044\u65b9\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3057\u305f\u3002\u7279\u306b\u52d8\u9055\u3044\u3057\u304c\u3061\u306aSQL NULL\u30fbJSON NULL\u306e\u9055\u3044\u3082\u7d30\u304b\u304f\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002 SQL\u306e\u57fa\u672c\u7684\u306a\u77e5\u8b58\u3082\u307e\u3068\u3081\u3066\u304a\u308a\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\uff01 \u60f3\u5b9a\u8aad\u8005 1. \u6bd4\u8f03\u6f14\u7b97\u3068NULL EQUAL_NULL(Snowflake \u56fa\u6709) \u6bd4\u8f03\u6f14\u7b97\u5b50\u30dd\u30a4\u30f3\u30c8 2. \u96c6\u8a08\u95a2\u6570\u3068NULL \u6ce8\u610f\u70b9 \u96c6\u8a08\u95a2\u6570\u30dd\u30a4\u30f3\u30c8 3. NULL \u5909\u63db\u95a2\u6570 NULL\u95a2\u6570\u30dd\u30a4\u30f3\u30c8 4. \u30bd\u30fc\u30c8\u3068NULL \u30bd\u30fc\u30c8\u3068NULL\u30dd\u30a4\u30f3\u30c8 5. GROUP BY\u3068NULL GROUP BY\u3068NULL\u30dd\u30a4\u2026","blog_title":"Tech Waves","provider_name":"Hatena Blog","published":"2026-07-07 09:00:00","url":"https://tech-waves.hakuhodody-one.co.jp/entry/snowflake-null-handling-guide","width":"100%","blog_url":"https://tech-waves.hakuhodody-one.co.jp/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftech-waves.hakuhodody-one.co.jp%2Fentry%2Fsnowflake-null-handling-guide\" title=\"Snowflake NULL\u306e\u6271\u3044\u306b\u3064\u3044\u3066\u5168\u90e8\u307e\u3068\u3081\u3066\u307f\u305f\uff01 - Tech Waves\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/oneTossiy/","categories":["\u5b9f\u52d9\u304a\u5f79\u7acb\u3061","Snowflake"]}