{"id":87927,"date":"2024-03-21T09:04:56","date_gmt":"2024-03-21T00:04:56","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/sql-where%e5%8f%a5%e3%81%ae%e6%96%87%e6%b3%95%e3%81%a8%e7%94%a8%e9%80%94\/"},"modified":"2024-03-27T15:55:52","modified_gmt":"2024-03-27T06:55:52","slug":"sql-where%e5%8f%a5%e3%81%ae%e6%96%87%e6%b3%95%e3%81%a8%e7%94%a8%e9%80%94","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/sql-where%e5%8f%a5%e3%81%ae%e6%96%87%e6%b3%95%e3%81%a8%e7%94%a8%e9%80%94\/","title":{"rendered":"SQL WHERE\u53e5\u306e\u6587\u6cd5\u3068\u7528\u9014"},"content":{"rendered":"

SQL\u306eWHERE\u6761\u4ef6\u6587\u306f\u3001\u7279\u5b9a\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u30c7\u30fc\u30bf\u884c\u3092\u62bd\u51fa\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u901a\u5e38\u3001SELECT\u3001UPDATE\u3001DELETE\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n

WHERE\u6761\u4ef6\u306e\u57fa\u672c\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n

SELECT column1, column2, \u2026 FROM table WHERE condition;<\/p>\n

UPDATE \u30c6\u30fc\u30d6\u30eb\u540d SET \u30ab\u30e9\u30e01 = \u50241, \u30ab\u30e9\u30e02 = \u50242, … WHERE \u6761\u4ef6;<\/p>\n

\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u524a\u9664 DELETE
\nWHERE \u6761\u4ef6;<\/p>\n

WHERE\u6761\u4ef6\u3067\u306f\u3001condition\u306f\u8ad6\u7406\u5f0f\u3067\u3042\u308a\u3001\u6bd4\u8f03\u6f14\u7b97\u5b50\uff08\u4f8b\uff1a=\u3001<>\u3001<\u3001<=\u3001>\u3001>=\uff09\u3001\u8ad6\u7406\u6f14\u7b97\u5b50\uff08\u4f8b\uff1aAND\u3001OR\u3001NOT\uff09\u3068\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\uff08\u4f8b\uff1a%\u3001_\uff09\u3067\u6761\u4ef6\u3092\u69cb\u7bc9\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306fWHERE\u6761\u4ef6\u5206\u306e\u4e00\u822c\u7684\u306a\u4f8b\u3067\u3059\u3002<\/p>\n

18\u6b73\u3088\u308a\u82e5\u3044\u9867\u5ba2\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044<\/p>\n

UPDATE employees SET \u7d66\u4e0e = \u7d66\u4e0e * 1.1 WHERE \u90e8\u7f72 = ‘IT’;<\/p>\n

\u6ce8\u6587\u65e5\u304c\u300c2021-01-01\u300d\u3088\u308a\u524d\u306e\u6ce8\u6587\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n

\u307e\u305f\u3001WHERE \u6761\u4ef6\u6587\u306f\u3001IN\u3001BETWEEN\u3001LIKE \u306a\u3069\u306e\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u8907\u96d1\u306a\u7d5e\u308a\u8fbc\u307f\u8981\u6c42\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

SQL\u306eWHERE\u6761\u4ef6\u6587\u306f\u3001\u7279\u5b9a\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u30c7\u30fc\u30bf\u884c\u3092\u62bd\u51fa\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u901a\u5e38\u3001SELECT\u3001UPDATE\u3001DELETE\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002 WHERE\u6761\u4ef6\u306e\u57fa\u672c\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002 SE […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-87927","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nSQL WHERE\u53e5\u306e\u6587\u6cd5\u3068\u7528\u9014 - 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\/sql-where\u53e5\u306e\u6587\u6cd5\u3068\u7528\u9014\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL WHERE\u53e5\u306e\u6587\u6cd5\u3068\u7528\u9014\" \/>\n<meta property=\"og:description\" content=\"SQL\u306eWHERE\u6761\u4ef6\u6587\u306f\u3001\u7279\u5b9a\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3059\u30c7\u30fc\u30bf\u884c\u3092\u62bd\u51fa\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u901a\u5e38\u3001SELECT\u3001UPDATE\u3001DELETE\u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002 WHERE\u6761\u4ef6\u306e\u57fa\u672c\u69cb\u6587\u306f\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002 SE […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/ja\/blog\/sql-where\u53e5\u306e\u6587\u6cd5\u3068\u7528\u9014\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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