{"id":200317,"date":"2025-05-06T10:33:20","date_gmt":"2025-05-06T02:33:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200317\/"},"modified":"2025-05-06T10:33:20","modified_gmt":"2025-05-06T02:33:20","slug":"%e5%a6%82%e4%bd%95%e9%80%9a%e8%bf%87sql%e6%9f%a5%e8%af%a2%e5%90%8c%e6%97%b6%e8%8e%b7%e5%8f%96%e6%96%87%e7%ab%a0%e5%88%97%e8%a1%a8%e5%92%8c%e7%82%b9%e8%b5%9e%e7%8a%b6%e6%80%81%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200317\/","title":{"rendered":"\u5982\u4f55\u901a\u8fc7SQL\u67e5\u8be2\u540c\u65f6\u83b7\u53d6\u6587\u7ae0\u5217\u8868\u548c\u70b9\u8d5e\u72b6\u6001\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5982\u4f55\u901a\u8fc7SQL\u67e5\u8be2\u540c\u65f6\u83b7\u53d6\u6587\u7ae0\u5217\u8868\u548c\u70b9\u8d5e\u72b6\u6001\uff1f<\/h1>\n

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n

<\/p>\n

\u5728\u62c9\u53d6\u6587\u7ae0\u5217\u8868\u65f6\u540c\u65f6\u83b7\u53d6\u70b9\u8d5e\u72b6\u6001<\/strong><\/p>\n

\u9700\u6c42\u5982\u4e0b\uff1a<\/p>\n

    \n
  1. \u5217\u51fa\u6587\u7ae0\u5217\u8868<\/li>\n
  2. \u83b7\u53d6\u6bcf\u7bc7\u6587\u7ae0\u662f\u5426\u88ab\u7528\u6237\u70b9\u8d5e<\/li>\n<\/ol>\n

    \u5bf9\u4e8e\u7ed9\u5b9a\u7684\u6587\u7ae0\u8868\u548c\u559c\u6b22\u8868\uff1a<\/p>\n

    \u6587\u7ae0\u8868\uff1a<\/p>\n\n\n\n
    id<\/th>\nuserid<\/th>\nworkid<\/th>\nname<\/th>\n<\/tr>\n<\/thead>\n<\/table>\n

    \u559c\u6b22\u8868\uff1a<\/p>\n\n\n\n
    id<\/th>\nuserid<\/th>\nworkid<\/th>\n<\/tr>\n<\/thead>\n<\/table>\n

    \u91c7\u7528\u4ee5\u4e0b sql \u67e5\u8be2\u8bed\u53e5\uff0c\u53ef\u4ee5\u5728\u83b7\u53d6\u6587\u7ae0\u5217\u8868\u7684\u540c\u65f6\u83b7\u53d6\u70b9\u8d5e\u72b6\u6001\uff1a<\/p>\n

    select id, userid, workid, name, \n    (select count(*) from \u559c\u6b22\u8868 as l where l.workid = a.workid) as like \n    from \u6587\u7ae0\u8868 as a<\/pre>\n
    \u6b64\u67e5\u8be2\u8bed\u53e5\u901a\u8fc7\u8fde\u63a5\u6587\u7ae0\u8868\u548c\u559c\u6b22\u8868\uff0c\u5e76\u7edf\u8ba1\u7279\u5b9a\u6587\u7ae0 id \u7684\u559c\u6b22\u8bb0\u5f55\u6570\u91cf\uff0c\u5b9e\u73b0\u4e86\u83b7\u53d6\u70b9\u8d5e\u72b6\u6001\u7684\u529f\u80fd\u3002<\/p>\n
    \u5982\u679c\u662f\u9700\u8981\u5224\u65ad\u5f53\u524d\u7528\u6237\u662f\u5426\u559c\u6b22<\/strong><\/p>\n
    \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u9700\u8981\u5206\u4e24\u6b65\u8fdb\u884c\u67e5\u8be2\uff1a<\/p>\n
      \n
    1. \u7b2c\u4e00\u6b21\u67e5\u8be2\u83b7\u53d6\u6587\u7ae0\u5217\u8868\u548c\u6587\u7ae0 id\u3002<\/li>\n
    2. \u7b2c\u4e8c\u6b21\u67e5\u8be2\u4f7f\u7528\u8fd9\u4e9b\u6587\u7ae0 id \u83b7\u53d6\u559c\u6b22\u6570\u636e\u3002<\/li>\n<\/ol>\n
      \u7136\u540e\u5728\u4ee3\u7801\u4e2d\u7ed3\u5408\u8fd9\u4e24\u4e2a\u67e5\u8be2\u7ed3\u679c\u5373\u53ef\u3002<\/p>\n
      \u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\u4e3b\u673a\u5b9d\u8d1d\uff01\u66f4\u591a\u5173\u4e8e\u6570\u636e\u5e93\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u3002<\/p>\n
      \n
      \n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
      \u5982\u4f55\u901a\u8fc7SQL\u67e5\u8be2\u540c\u65f6\u83b7\u53d6\u6587\u7ae0\u5217...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200317","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200317"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200317\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200317"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200317"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}