{"id":126557,"date":"2024-03-24T22:55:08","date_gmt":"2024-03-24T13:55:08","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/oracle%e3%81%a7null%e3%82%92%e6%96%87%e5%ad%97%e5%88%97%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/"},"modified":"2024-03-26T20:30:59","modified_gmt":"2024-03-26T11:30:59","slug":"oracle%e3%81%a7null%e3%82%92%e6%96%87%e5%ad%97%e5%88%97%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/oracle%e3%81%a7null%e3%82%92%e6%96%87%e5%ad%97%e5%88%97%e3%81%ab%e5%a4%89%e6%8f%9b%e3%81%99%e3%82%8b%e6%96%b9%e6%b3%95\/","title":{"rendered":"Oracle\u3067NULL\u3092\u6587\u5b57\u5217\u306b\u5909\u63db\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>NVL\u95a2\u6570\u306f\u3001NULL\u3092\u6587\u5b57\u5217\u306b\u7f6e\u63db\u3059\u308b\u305f\u3081\u306bOracle\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002NVL\u95a2\u6570\u306f2\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002\u6700\u521d\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306f\u30c1\u30a7\u30c3\u30af\u3059\u308b\u5f0f\u3067\u30012\u756a\u76ee\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306f\u7f6e\u63db\u3059\u308b\u5024\u3067\u3059\u3002\u6700\u521d\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u304cNULL\u306e\u5834\u5408\u30012\u756a\u76ee\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001NULL \u3092\u6587\u5b57\u5217&#8217;N\/A&#8217; \u306b\u7f6e\u304d\u63db\u3048\u305f\u3044\u5834\u5408\u306f\u3001\u6b21\u306e\u65b9\u6cd5\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">SELECT<\/span> NVL(column_name, <span class=\"hljs-string\">'N\/A'<\/span>) <span class=\"hljs-keyword\">FROM<\/span> table_name;\r\n<\/code><\/pre>\n<p>\u3053\u306e\u3046\u3061\u3001column_name \u306f\u691c\u67fb\u3055\u308c\u308b\u5217\u540d\u3001table_name \u306f\u7167\u4f1a\u3055\u308c\u308b\u30c6\u30fc\u30d6\u30eb\u540d\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001NULL \u304c &#8216;N\/A&#8217; \u306b\u7f6e\u304d\u63db\u3048\u3089\u308c\u305f\u7d50\u679c\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NVL\u95a2\u6570\u306f\u3001NULL\u3092\u6587\u5b57\u5217\u306b\u7f6e\u63db\u3059\u308b\u305f\u3081\u306bOracle\u3067\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002NVL\u95a2\u6570\u306f2\u3064\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002\u6700\u521d\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306f\u30c1\u30a7\u30c3\u30af\u3059\u308b\u5f0f\u3067\u30012\u756a\u76ee\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306f\u7f6e\u63db\u3059\u308b\u5024\u3067\u3059\u3002\u6700\u521d\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u304cNU [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-126557","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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