{"provider_name":"Hatena Blog","image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fhareno-urakata.com%2Fentry%2F2022%2F03%2F14%2F135259\" title=\"Access VBA \u51e6\u7406\u5b9f\u884c\u524d\u306e\u30c1\u30a7\u30c3\u30af\u30d1\u30bf\u30fc\u30f3 - \u6674\u308c\u306e\u3046\u3089\u304b\u305f\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","width":"100%","blog_url":"https://hareno-urakata.com/","provider_url":"https://hatena.blog","blog_title":"\u6674\u308c\u306e\u3046\u3089\u304b\u305f","height":"190","url":"https://hareno-urakata.com/entry/2022/03/14/135259","author_url":"https://blog.hatena.ne.jp/benkei_maru/","author_name":"benkei_maru","type":"rich","description":"\u51e6\u7406\u5b9f\u884c\u958b\u59cb\u6642\u306b\u3001\u5165\u529b\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306b\u5bfe\u3059\u308b\u30c1\u30a7\u30c3\u30af\u3067\u3088\u304f\u4f7f\u308f\u308c\u308b\u9805\u76ee\u306e\u30e1\u30e2\u3002 \u2460\u30c7\u30fc\u30bf\u306e\u6709\u7121 IsNull( )\u95a2\u6570\u306e\u4f7f\u7528\u3001\u307e\u305f\u306f(Me.\u5217\u540d.Value = \"\")\u3067\u30c1\u30a7\u30c3\u30af\u3002 \u6ce8\u610f\u70b9 (1)Null\uff08\u521d\u671f\u5316\u3055\u308c\u3066\u3044\u306a\u3044\uff09\u306e\u5834\u5408\u3002 (2)\u9577\u3055\u304c0\u306e\u6587\u5b57\u5217\u306e\u5834\u5408\u3002 (3)\u30b9\u30da\u30fc\u30b9\u304c\u5165\u529b\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3002 \u305d\u306e\u305f\u3081\u3001 IsNull(Me.\u5217\u540d.Value) Or Trim(Me.\u5217\u540d.Value) = \"\" \u3092\u4f7f\u3063\u3066\u30c1\u30a7\u30c3\u30af\u3059\u308b\u306e\u304c\u3088\u3044\u3002 \u2461\u5165\u529b\u6587\u5b57\u6570 Len( )\u95a2\u6570\u3092\u4f7f\u7528\u3002 \u3053\u306e\u95a2\u6570\u306f\u6f22\u5b57\u30821\u6587\u5b57\u3068\u3057\u3066\u8fd4\u3059\u306e\u3067\u6ce8\u610f\u3002 \u2462\u6700\u5927\u6841\u6570 DB\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u6700\u5927\u6841\u6570\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3002 \u30fb\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u306a\u2026","categories":["Access_VBA"],"published":"2022-03-14 13:52:59","title":"Access VBA \u51e6\u7406\u5b9f\u884c\u524d\u306e\u30c1\u30a7\u30c3\u30af\u30d1\u30bf\u30fc\u30f3","version":"1.0"}