{"description":"\u7d50\u8ad6 example.csv \u304c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3042\u308b\u3068\u3059\u308b\u3002 name,age,height taro,,170 hanako,20,\"\" kenji,21,172 \u3053\u306e\u3068\u304d\u3001qsv \u3067 is null \u306e\u6761\u4ef6\u3067\u7d5e\u308a\u8fbc\u3080\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b ,, \u306e\u5024\u3067\u3042\u3063\u3066\u3082 ,\"\", \u306e\u5024\u3067\u3042\u3063\u3066\u3082 is null \u306e\u6761\u4ef6\u306b\u30d2\u30c3\u30c8\u3057\u3066\u3044\u308b\u3002 $ qsv sqlp example.csv 'select * from example where age is null' name,age,height taro,,170 (1, 3) $ qsv sqlp example.csv 'select * from exa\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fobel.hatenablog.jp%2Fentry%2F20250829%2F1756413000\" title=\"qsv \u306a\u3069\u3001Rust \u3067 CSV \u3092\u6271\u3046\u5834\u5408\u306f ,, \u3082 ,&quot;&quot;, \u3082 NULL \u306b\u306a\u308b - \u7d04\u675f\u306e\u5730\" 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","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0","\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0 -> \u8a00\u8a9e -> Ruby"],"blog_title":"\u7d04\u675f\u306e\u5730","type":"rich","image_url":"https://cdn.user.blog.st-hatena.com/default_entry_og_image/459657/1568741889764668","title":"qsv \u306a\u3069\u3001Rust \u3067 CSV \u3092\u6271\u3046\u5834\u5408\u306f ,, \u3082 ,\"\", \u3082 NULL \u306b\u306a\u308b","author_url":"https://blog.hatena.ne.jp/gregminster/","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","author_name":"gregminster","height":"190","url":"https://obel.hatenablog.jp/entry/20250829/1756413000","published":"2025-08-29 05:30:00","width":"100%","blog_url":"https://obel.hatenablog.jp/"}