{"id":127731,"date":"2024-03-25T03:40:15","date_gmt":"2024-03-24T18:40:15","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/not-exists%e6%bc%94%e7%ae%97%e5%ad%90%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9fsql\/"},"modified":"2024-04-04T15:27:09","modified_gmt":"2024-04-04T06:27:09","slug":"not-exists%e6%bc%94%e7%ae%97%e5%ad%90%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9fsql","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/not-exists%e6%bc%94%e7%ae%97%e5%ad%90%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%9fsql\/","title":{"rendered":"NOT EXISTS\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3057\u305fSQL"},"content":{"rendered":"<p>NOT EXISTS\u306f\u3001SQL\u306b\u304a\u3051\u308b\u6761\u4ef6\u6f14\u7b97\u5b50\u3067\u3001\u30b5\u30d6\u30af\u30a8\u30ea\u7d50\u679c\u30bb\u30c3\u30c8\u304c\u7a7a\u304b\u3069\u3046\u304b\u3092\u691c\u67fb\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>SELECT column1, column2, ...\r\nFROM table1\r\nWHERE NOT EXISTS (\u5b50\u67e5\u8be2)\r\n<\/code><\/pre>\n<p>\u30b5\u30d6\u30af\u30a8\u30ea\u306f\u4efb\u610f\u306e\u6709\u52b9\u306aSELECT\u6587\u3067\u3042\u308c\u3070\u304b\u307e\u3044\u307e\u305b\u3093\u3002\u30b5\u30d6\u30af\u30a8\u30ea\u304c\u8fd4\u3059\u7d50\u679c\u30bb\u30c3\u30c8\u304c\u7a7a\u306e\u5834\u5408\u3001NOT EXISTS\u306f\u771f\u3092\u8fd4\u3057\u3001\u305d\u308c\u4ee5\u5916\u306e\u5834\u5408\u306f\u507d\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>\u5177\u4f53\u4f8b\u306e\u4f7f\u7528:<\/p>\n<p>\u9867\u5ba2\u3068\u6ce8\u6587\u306e 2 \u3064\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002\u6ce8\u6587\u3057\u3066\u3044\u306a\u3044\u9867\u5ba2\u3092\u898b\u3064\u3051\u308b\u5834\u5408\u3001NOT EXISTS \u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>SELECT CustomerName\r\nFROM Customers\r\nWHERE NOT EXISTS (SELECT * FROM Orders WHERE Customers.CustomerID = Orders.CustomerID);\r\n<\/code><\/pre>\n<p>\u6ce8\u6587\u3092\u3057\u3066\u3044\u306a\u3044\u9867\u5ba2\u306e\u540d\u524d\u3092\u3059\u3079\u3066\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30af\u30a8\u30ea\u3067\u306f\u3001\u30b5\u30d6\u30af\u30a8\u30ea\u306e\u300cSELECT * FROM Orders WHERE Customers.CustomerID = Orders.CustomerID\u300d\u306f\u3001Orders\u30c6\u30fc\u30d6\u30eb\u306bCustomers\u30c6\u30fc\u30d6\u30eb\u306eCustomerID\u3068\u4e00\u81f4\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u307e\u3059\u3002\u4e00\u81f4\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u304c\u306a\u3051\u308c\u3070\u3001NOT EXISTS\u306f\u771f\u3092\u8fd4\u3057\u3001WHERE\u53e5\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3057\u3001\u305d\u306e\u9867\u5ba2\u306e\u540d\u524d\u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30d6\u30af\u30a8\u30ea\u5185\u306eSELECT\u6587\u306f\u3001\u5168\u3066\u306e\u5217\u3092\u8fd4\u3059\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u3092\u4f7f\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u4e00\u81f4\u3059\u308b\u30ec\u30b3\u30fc\u30c9\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3060\u3051\u306b\u95a2\u5fc3\u304c\u3042\u308a\u3001\u5217\u306e\u5177\u4f53\u7684\u306a\u5024\u306b\u306f\u8208\u5473\u304c\u306a\u3044\u306e\u3067\u3001\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NOT EXISTS\u306f\u3001SQL\u306b\u304a\u3051\u308b\u6761\u4ef6\u6f14\u7b97\u5b50\u3067\u3001\u30b5\u30d6\u30af\u30a8\u30ea\u7d50\u679c\u30bb\u30c3\u30c8\u304c\u7a7a\u304b\u3069\u3046\u304b\u3092\u691c\u67fb\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002 SELECT column1, column2, &#8230; FROM table1 WHERE [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-127731","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) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>NOT EXISTS\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3057\u305fSQL - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/ja\/blog\/not-exists\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3057\u305fsql\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"NOT EXISTS\u6f14\u7b97\u5b50\u3092\u4f7f\u7528\u3057\u305fSQL\" \/>\n<meta property=\"og:description\" content=\"NOT EXISTS\u306f\u3001SQL\u306b\u304a\u3051\u308b\u6761\u4ef6\u6f14\u7b97\u5b50\u3067\u3001\u30b5\u30d6\u30af\u30a8\u30ea\u7d50\u679c\u30bb\u30c3\u30c8\u304c\u7a7a\u304b\u3069\u3046\u304b\u3092\u691c\u67fb\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002 SELECT column1, column2, ... 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