{"id":22600,"date":"2024-11-21T11:57:13","date_gmt":"2024-11-21T03:57:13","guid":{"rendered":"https:\/\/fwq.ai\/blog\/22600\/"},"modified":"2024-11-21T11:57:13","modified_gmt":"2024-11-21T03:57:13","slug":"laravel-groupby%e5%87%ba%e9%94%99","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/22600\/","title":{"rendered":"laravel groupby\u51fa\u9519"},"content":{"rendered":"

laravel \u662f\u4e00\u4e2a\u6d41\u884c\u7684 php \u6846\u67b6\uff0c\u5b83\u7b80\u5316\u4e86\u5f00\u53d1\u8005\u7684\u5de5\u4f5c\u6d41\u7a0b\u5e76\u63d0\u9ad8\u4e86\u5e94\u7528\u7a0b\u5e8f\u7684\u53ef\u7ef4\u62a4\u6027\u3002\u5728 laravel \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7fa4\u7ec4\u51fd\u6570\uff08groupby\uff09\u805a\u5408\u6570\u636e\u3002<\/p>\n

\u7136\u800c\uff0c\u6709\u65f6\u5019\u5728\u4f7f\u7528 Laravel \u7684 GroupBy \u51fd\u6570\u65f6\uff0c\u4f1a\u51fa\u73b0\u4e00\u4e9b\u4e0d\u53ef\u9884\u6599\u7684\u95ee\u9898\u3002\u672c\u6587\u5c06\u4e3a\u60a8\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u95ee\u9898\u4ee5\u53ca\u5982\u4f55\u89e3\u51b3\u5b83\u4eec\u3002<\/p>\n

    \n
  1. GroupBy \u65e0\u6cd5\u6309\u9884\u671f\u5206\u7ec4<\/li>\n<\/ol>\n

    \u5728 Laravel \u4e2d\u4f7f\u7528 GroupBy \u51fd\u6570\u65f6\uff0c\u6700\u5e38\u89c1\u7684\u95ee\u9898\u4e4b\u4e00\u5c31\u662f\u65e0\u6cd5\u6309\u7167\u9884\u671f\u7684\u65b9\u5f0f\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u3002\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u591a\u4e2a\u539f\u56e0\u5bfc\u81f4\u7684\uff0c\u4f8b\u5982\u4f7f\u7528\u9519\u8bef\u7684\u5217\u540d\u3001\u5217\u540d\u7684\u5927\u5c0f\u5199\u4e0d\u5339\u914d\u7b49\u3002<\/p>\n

    \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u60a8\u53ef\u4ee5\u5c1d\u8bd5\u4ee5\u4e0b\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n

    1\uff09\u786e\u4fdd\u60a8\u4f7f\u7528\u7684\u5217\u540d\u4e0e\u6570\u636e\u5e93\u8868\u7ed3\u6784\u4e2d\u7684\u5217\u540d\u5b8c\u5168\u76f8\u540c\u3002<\/p>\n

    2\uff09\u5982\u679c\u60a8\u4f7f\u7528\u7684\u5217\u540d\u4e2d\u5305\u542b\u5927\u5199\u5b57\u6bcd\uff0c\u5219\u5fc5\u987b\u5c06\u5176\u4e0e\u6570\u636e\u5e93\u8868\u7ed3\u6784\u4e2d\u7684\u5217\u540d\u76f8\u5339\u914d\u3002<\/p>\n

    3\uff09\u5c1d\u8bd5\u4f7f\u7528 Laravel \u7684 raw \u51fd\u6570\u6765\u6267\u884c SQL \u67e5\u8be2\u3002<\/p>\n

    \u4f8b\u5982\uff0c\u5047\u8bbe\u60a8\u6709\u4e00\u4e2a user \u8868\uff0c\u5305\u542b id\u3001name \u548c email \u4e09\u4e2a\u5217\u3002\u8981\u6309\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u5bf9\u7528\u6237\u8fdb\u884c\u5206\u7ec4\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n

    $users = DB::table('users')\n           -&gt;select('email', DB::raw('count(*) as total'))\n           -&gt;groupBy('email')\n           -&gt;get();<\/pre>\n
      \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \n
    1. GroupBy \u8fd4\u56de\u9519\u8bef\u7684\u7ed3\u679c<\/li>\n<\/ol>\n
      \u53e6\u4e00\u4e2a\u5e38\u89c1\u7684\u95ee\u9898\u662f\uff0c\u5f53\u4f7f\u7528 GroupBy \u51fd\u6570\u65f6\uff0c\u5b83\u8fd4\u56de\u9519\u8bef\u7684\u7ed3\u679c\u3002\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u591a\u4e2a\u539f\u56e0\u5bfc\u81f4\u7684\uff0c\u4f8b\u5982\u4f7f\u7528\u9519\u8bef\u7684\u67e5\u8be2\u8bed\u53e5\u3001\u5728 GroupBy \u51fd\u6570\u4e2d\u4f7f\u7528\u4e86\u9519\u8bef\u7684\u5217\u540d\u7b49\u3002<\/p>\n
      \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u60a8\u53ef\u4ee5\u5c1d\u8bd5\u4ee5\u4e0b\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n
      1\uff09\u786e\u4fdd\u60a8\u4f7f\u7528\u7684\u67e5\u8be2\u8bed\u53e5\u6b63\u786e\u65e0\u8bef\u3002<\/p>\n
      2\uff09\u68c0\u67e5\u60a8\u4f7f\u7528\u7684\u5217\u540d\u662f\u5426\u6b63\u786e\u3002<\/p>\n
      3\uff09\u4f7f\u7528 Laravel \u7684\u8c03\u8bd5\u5de5\u5177\u6765\u5206\u6790\u95ee\u9898\u5e76\u67e5\u627e\u9519\u8bef\u3002<\/p>\n
      \u4f8b\u5982\uff0c\u5047\u8bbe\u60a8\u8981\u5c06 orders \u8868\u6309\u7167\u7528\u6237 ID \u548c\u8ba2\u5355 ID \u5206\u7ec4\uff0c\u5e76\u8ba1\u7b97\u6bcf\u4e2a\u7528\u6237\u7684\u8ba2\u5355\u603b\u6570\u548c\u6bcf\u4e2a\u8ba2\u5355\u7684\u6570\u91cf\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
      $order_counts = DB::table('orders')\n                    -&gt;select('user_id', 'order_id', DB::raw('count(*) as total'))\n                    -&gt;groupBy('user_id', 'order_id')\n                    -&gt;get();<\/pre>\n
        \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
      \u8bf7\u6ce8\u610f\uff0c\u4e0a\u8ff0\u67e5\u8be2\u4e2d\uff0c\u6211\u4eec\u5728 GroupBy \u51fd\u6570\u4e2d\u4f7f\u7528\u4e86\u4e24\u4e2a\u5217\u540d\u3002\u8fd9\u786e\u4fdd\u4e86\u6211\u4eec\u6309\u7167\u7528\u6237 ID \u548c\u8ba2\u5355 ID \u5c06\u6570\u636e\u5206\u7ec4\uff0c\u5e76\u8ba1\u7b97\u6bcf\u4e2a\u7528\u6237\u7684\u8ba2\u5355\u603b\u6570\u3002<\/p>\n
        \n
      1. GroupBy \u51fd\u6570\u6267\u884c\u7f13\u6162<\/li>\n<\/ol>\n
        \u53e6\u4e00\u4e2a\u5e38\u89c1\u7684\u95ee\u9898\u662f\uff0c\u5728\u4f7f\u7528 GroupBy \u51fd\u6570\u65f6\uff0c\u67e5\u8be2\u53ef\u80fd\u6267\u884c\u7f13\u6162\u3002\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u60a8\u7684\u6570\u636e\u5e93\u4e2d\u6709\u5927\u91cf\u6570\u636e\u6216\u60a8\u7684\u670d\u52a1\u5668\u914d\u7f6e\u4e0d\u8db3\u3002<\/p>\n
        \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u60a8\u53ef\u4ee5\u5c1d\u8bd5\u4ee5\u4e0b\u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n
        1\uff09\u4f7f\u7528\u7d22\u5f15\u6765\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n
        2\uff09\u4f18\u5316\u6570\u636e\u5e93\u670d\u52a1\u5668\u7684\u914d\u7f6e\u3002<\/p>\n
        3\uff09\u5c1d\u8bd5\u5206\u89e3\u67e5\u8be2\u4ee5\u51cf\u5c11\u6570\u636e\u626b\u63cf\u3002<\/p>\n
        \u4f8b\u5982\uff0c\u5047\u8bbe\u60a8\u60f3\u6309\u7167\u7528\u6237 ID \u548c\u8ba2\u5355\u65f6\u95f4\u5206\u7ec4\uff0c\u5e76\u8ba1\u7b97\u6bcf\u4e2a\u7528\u6237\u7684\u8ba2\u5355\u603b\u6570\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n
        $orders = DB::table('orders')\n            -&gt;select('user_id', DB::raw('DATE(created_at) as order_date'), DB::raw('COUNT(*) as order_count'))\n            -&gt;groupBy('user_id', 'order_date')\n            -&gt;get();<\/pre>\n
          \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
        \u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u5728\u67e5\u8be2\u4e2d\u4f7f\u7528\u4e86 DATE \u51fd\u6570\u6765\u4ec5\u6309\u65e5\u671f\uff08\u4e0d\u5305\u62ec\u65f6\u95f4\uff09\u8fdb\u884c\u5206\u7ec4\u3002\u8fd9\u5c06\u51cf\u5c11\u67e5\u8be2\u626b\u63cf\u7684\u6570\u636e\u91cf\uff0c\u4ece\u800c\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n
        \u603b\u7ed3<\/p>\n
        \u5728 Laravel \u4e2d\u4f7f\u7528 GroupBy \u51fd\u6570\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u8bb8\u591a\u95ee\u9898\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u4e00\u4e9b\u5e38\u89c1\u7684\u95ee\u9898\u4ee5\u53ca\u5982\u4f55\u89e3\u51b3\u5b83\u4eec\u3002\u65e0\u8bba\u60a8\u662f\u5728\u5904\u7406\u5927\u578b\u9879\u76ee\u8fd8\u662f\u4e2a\u4eba\u9879\u76ee\uff0c\u53ea\u8981\u60a8\u80fd\u6b63\u786e\u5730\u4f7f\u7528 GroupBy \u51fd\u6570\uff0c\u60a8\u5c31\u53ef\u4ee5\u8f7b\u677e\u805a\u5408\u6570\u636e\u5e76\u52a0\u5feb\u67e5\u8be2\u901f\u5ea6\u3002<\/p>\n
        \u4ee5\u4e0a\u5c31\u662flaravel groupby\u51fa\u9519\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
        laravel \u662f\u4e00\u4e2a\u6d41\u884c\u7684 php \u6846\u67b6\uff0c\u5b83\u7b80\u5316\u4e86\u5f00\u53d1\u8005\u7684\u5de5\u4f5c\u6d41\u7a0b\u5e76\u63d0\u9ad8\u4e86\u5e94\u7528\u7a0b\u5e8f\u7684\u53ef\u7ef4\u62a4\u6027\u3002\u5728 laravel \u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7fa4\u7ec4\u51fd\u6570\uff08groupby\uff09\u805a\u5408\u6570\u636e\u3002 \u7136\u800c\uff0c\u6709\u65f6\u5019\u5728\u4f7f\u7528 Laravel \u7684 GroupBy \u51fd\u6570\u65f6\uff0c\u4f1a\u51fa\u73b0\u4e00\u4e9b\u4e0d\u53ef\u9884\u6599\u7684\u95ee\u9898\u3002\u672c\u6587\u5c06\u4e3a\u60a8\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u95ee\u9898\u4ee5\u53ca\u5982\u4f55\u89e3\u51b3\u5b83\u4eec\u3002 GroupBy \u65e0\u6cd5\u6309\u9884\u671f\u5206\u7ec4 \u5728 Laravel \u4e2d\u4f7f\u7528 GroupBy \u51fd\u6570\u65f6\uff0c\u6700\u5e38\u89c1\u7684\u95ee\u9898\u4e4b\u4e00\u5c31\u662f\u65e0\u6cd5\u6309\u7167\u9884\u671f\u7684\u65b9\u5f0f\u5bf9\u6570\u636e\u8fdb\u884c\u5206\u7ec4\u3002\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u591a\u4e2a\u539f\u56e0\u5bfc\u81f4\u7684\uff0c\u4f8b\u5982\u4f7f\u7528\u9519\u8bef\u7684\u5217\u540d\u3001\u5217\u540d\u7684\u5927\u5c0f\u5199\u4e0d\u5339\u914d\u7b49\u3002 \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u60a8\u53ef\u4ee5\u5c1d\u8bd5\u4ee5\u4e0b\u89e3\u51b3\u65b9\u6848\uff1a 1\uff09\u786e\u4fdd\u60a8\u4f7f\u7528\u7684\u5217\u540d\u4e0e\u6570\u636e\u5e93\u8868\u7ed3\u6784\u4e2d\u7684\u5217\u540d\u5b8c\u5168\u76f8\u540c\u3002 2\uff09\u5982\u679c\u60a8\u4f7f\u7528\u7684\u5217\u540d\u4e2d\u5305\u542b\u5927\u5199\u5b57\u6bcd\uff0c\u5219\u5fc5\u987b\u5c06\u5176\u4e0e\u6570\u636e\u5e93\u8868\u7ed3\u6784\u4e2d\u7684\u5217\u540d\u76f8\u5339\u914d\u3002 3\uff09\u5c1d\u8bd5\u4f7f\u7528 Laravel \u7684 raw \u51fd\u6570\u6765\u6267\u884c SQL \u67e5\u8be2\u3002 \u4f8b\u5982\uff0c\u5047\u8bbe\u60a8\u6709\u4e00\u4e2a user \u8868\uff0c\u5305\u542b id\u3001name \u548c email \u4e09\u4e2a\u5217\u3002\u8981\u6309\u7535\u5b50\u90ae\u4ef6\u5730\u5740\u5bf9\u7528\u6237\u8fdb\u884c\u5206\u7ec4\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a $users = DB::table(‘users’) -&gt;select(’email’, DB::raw(‘count(*) as total’)) -&gt;groupBy(’email’) -&gt;get(); \u767b\u5f55\u540e\u590d\u5236 GroupBy \u8fd4\u56de\u9519\u8bef\u7684\u7ed3\u679c \u53e6\u4e00\u4e2a\u5e38\u89c1\u7684\u95ee\u9898\u662f\uff0c\u5f53\u4f7f\u7528 GroupBy \u51fd\u6570\u65f6\uff0c\u5b83\u8fd4\u56de\u9519\u8bef\u7684\u7ed3\u679c\u3002\u8fd9\u53ef\u80fd\u662f\u7531\u4e8e\u591a\u4e2a\u539f\u56e0\u5bfc\u81f4\u7684\uff0c\u4f8b\u5982\u4f7f\u7528\u9519\u8bef\u7684\u67e5\u8be2\u8bed\u53e5\u3001\u5728 GroupBy \u51fd\u6570\u4e2d\u4f7f\u7528\u4e86\u9519\u8bef\u7684\u5217\u540d\u7b49\u3002 \u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u60a8\u53ef\u4ee5\u5c1d\u8bd5\u4ee5\u4e0b\u89e3\u51b3\u65b9\u6848\uff1a 1\uff09\u786e\u4fdd\u60a8\u4f7f\u7528\u7684\u67e5\u8be2\u8bed\u53e5\u6b63\u786e\u65e0\u8bef\u3002 2\uff09\u68c0\u67e5\u60a8\u4f7f\u7528\u7684\u5217\u540d\u662f\u5426\u6b63\u786e\u3002 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-22600","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=22600"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/22600\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=22600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=22600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=22600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}