{"id":132764,"date":"2024-03-26T00:42:44","date_gmt":"2024-03-25T15:42:44","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/sql%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8bdistinct%e6%a7%8b%e6%96%87%e3%81%ae%e7%94%a8%e9%80%94%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/"},"modified":"2024-03-27T06:14:33","modified_gmt":"2024-03-26T21:14:33","slug":"sql%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8bdistinct%e6%a7%8b%e6%96%87%e3%81%ae%e7%94%a8%e9%80%94%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/sql%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8bdistinct%e6%a7%8b%e6%96%87%e3%81%ae%e7%94%a8%e9%80%94%e3%81%af%e4%bd%95%e3%81%a7%e3%81%99%e3%81%8b%ef%bc%9f\/","title":{"rendered":"SQL\u306b\u304a\u3051\u308bDISTINCT\u69cb\u6587\u306e\u7528\u9014\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>SQL\u3067\u306f\u3001DISTINCT\u306f\u6307\u5b9a\u3057\u305f\u5217\u306e\u4e2d\u3067\u7570\u306a\u308b\u5024\u306e\u307f\u3092\u8fd4\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u91cd\u8907\u3059\u308b\u884c\u3092\u9664\u5916\u3059\u308b\u305f\u3081\u306bSELECT \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3067\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4f7f\u3044\u65b9\u3092\u793a\u3059\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/p>\n<p>DISTINCT \u5217\u540d1, \u5217\u540d2, \u2026 \u3092\u9078\u629e<\/p>\n<p>\u8868\u540d\u304b\u3089<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u300ccustomers\u300d\u3068\u3044\u3046\u30c6\u30fc\u30d6\u30eb\u304c\u3042\u308a\u3001\u300ccustomer_id\u300d\u3001\u300ccustomer_name\u300d\u3001\u304a\u3088\u3073\u300ccity\u300d\u3068\u3044\u30463\u3064\u306e\u5217\u304c\u542b\u307e\u308c\u308b\u3068\u3057\u307e\u3059\u3002\u7570\u306a\u308b\u90fd\u5e02\u306e\u30ea\u30b9\u30c8\u3092\u53d6\u5f97\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u6b21\u306e\u30af\u30a8\u30ea\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5e02\u533a\u3092\u500b\u5225\u306b\u51fa\u3059<\/p>\n<p>\u304a\u5ba2\u3055\u307e\u304b\u3089<\/p>\n<p>\u91cd\u8907\u306e\u306a\u3044\u90fd\u5e02\u4e00\u89a7\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n<p>\u6ce8\u610f\u3001DISTINCT\u30ad\u30fc\u30ef\u30fc\u30c9\u306f\u901a\u5e38\u3001SELECT\u6587\u4e2d\u3067\u4f7f\u308f\u308c\u307e\u3059\u304c\u3001COUNT\u3001SUM\u306a\u3069\u306e\u96c6\u8a08\u95a2\u6570\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u4e00\u610f\u306e\u5024\u306e\u500b\u6570\u3084\u5408\u8a08\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001DISTINCT\u306fORDER BY\u53e5\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u6307\u5b9a\u3057\u305f\u9806\u5e8f\u3067\u7d50\u679c\u3092\u30bd\u30fc\u30c8\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u4f8b\uff1a<\/p>\n<p>\u91cd\u8907\u306a\u3057\u306e\u5e02\u533a\u753a\u6751\u3092\u9078\u629e<\/p>\n<p>\u304a\u5ba2\u69d8\u3088\u308a<\/p>\n<p>ORDER BY city ASC;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SQL\u3067\u306f\u3001DISTINCT\u306f\u6307\u5b9a\u3057\u305f\u5217\u306e\u4e2d\u3067\u7570\u306a\u308b\u5024\u306e\u307f\u3092\u8fd4\u3059\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u91cd\u8907\u3059\u308b\u884c\u3092\u9664\u5916\u3059\u308b\u305f\u3081\u306bSELECT \u30b9\u30c6\u30fc\u30c8\u30e1\u30f3\u30c8\u3067\u5229\u7528\u3067\u304d\u307e\u3059\u3002 \u4f7f\u3044\u65b9\u3092\u793a\u3059\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u3057\u307e\u3059\u3002 DISTINCT \u5217\u540d1, [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-132764","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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