{"author_name":"dayflower","blog_url":"https://dayflower.hatenablog.com/","description":"\u4ee5\u524d\u300cDBIC\u3067\u672c\u5f53\u306b\u56f0\u3063\u305f\u3089 SCALAR REFERNCE \u3092\u4f7f\u3048 - daily dayflower\u300d\u306b\u3066\uff0c DBIC \u3067 WHERE field1 IS NOT NULL \u306a\u691c\u7d22\u3092\u3057\u3088\u3046\u3068\u601d\u3063\u3066\uff0c \u2026\u2026 $resultset->search({ field1 => \\'IS NOT NULL' }); \u3068\u304b\u66f8\u3044\u3066\u3044\u305f\u3093\u3067\u3059\u304c\uff0c $resultset->search({ field1 => { '!=', undef } });\u3067\u3088\u304b\u3063\u305f\u306e\u3067\u3057\u305f\u3002 $resultset->search({ field1 => undef });\u304c WHERE field1 IS NULL\u3068\u3044\u3046\u306e\u306f\u77e5\u3063\u3066\u2026","image_url":null,"height":"190","provider_url":"https://hatena.blog","width":"100%","categories":["perl","db"],"blog_title":"daily dayflower","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdayflower.hatenablog.com%2Fentry%2F20061206%2F1165371050\" title=\" SQL::Abstract \u304b\u3057\u3053\u3059 - daily dayflower\" 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","published":"2006-12-06 11:10:50","type":"rich","title":" SQL::Abstract \u304b\u3057\u3053\u3059","author_url":"https://blog.hatena.ne.jp/dayflower/","url":"https://dayflower.hatenablog.com/entry/20061206/1165371050"}