{"id":200542,"date":"2025-05-06T08:32:14","date_gmt":"2025-05-06T00:32:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200542\/"},"modified":"2025-05-06T08:32:14","modified_gmt":"2025-05-06T00:32:14","slug":"%e5%a4%9a%e5%af%b9%e5%a4%9a%e5%85%b3%e8%81%94%e4%b8%ad%ef%bc%8c%e5%a6%82%e4%bd%95%e6%9f%a5%e8%af%a2%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8%e5%8c%85%e5%90%ab%e6%8c%87%e5%ae%9a%e6%b0%b4%e6%9e%9c%e7%bb%84","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200542\/","title":{"rendered":"\u591a\u5bf9\u591a\u5173\u8054\u4e2d\uff0c\u5982\u4f55\u67e5\u8be2\u662f\u5426\u5b58\u5728\u5305\u542b\u6307\u5b9a\u6c34\u679c\u7ec4\u5408\u7684\u7bee\u5b50\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>\u591a\u5bf9\u591a\u5173\u8054\u4e2d\uff0c\u5982\u4f55\u67e5\u8be2\u662f\u5426\u5b58\u5728\u5305\u542b\u6307\u5b9a\u6c34\u679c\u7ec4\u5408\u7684\u7bee\u5b50\uff1f <\/h1>\n<p>\u54c8\u55bd\uff01\u4eca\u5929\u5fc3\u8840\u6765\u6f6e\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\uff0c\u60f3\u5fc5\u5927\u5bb6\u5e94\u8be5\u5bf9\u90fd\u4e0d\u964c\u751f\u5427\uff0c\u90a3\u4e48\u9605\u8bfb\u672c\u6587\u5c31\u90fd\u4e0d\u4f1a\u5f88\u56f0\u96be\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230\uff0c\u82e5\u662f\u4f60\u6b63\u5728\u5b66\u4e60\uff0c\u5343\u4e07\u522b\u9519\u8fc7\u8fd9\u7bc7\u6587\u7ae0~\u5e0c\u671b\u80fd\u5e2e\u52a9\u5230\u4f60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241108\/1731027817672d636903e69.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>\u591a\u5bf9\u591a\u5173\u8054\u4e2d\u6307\u5b9a\u7ec4\u5408\u7684\u7ec4\u662f\u5426\u5b58\u5728\u67e5\u8be2<\/strong><\/p>\n<p>\u5728\u591a\u5bf9\u591a\u5173\u8054\u5173\u7cfb\u4e2d\uff0c\u5224\u65ad\u662f\u5426\u5b58\u5728\u5177\u6709\u6307\u5b9a\u5173\u8054\u7ec4\u5408\u7684\u7ec4\u6709\u65f6\u81f3\u5173\u91cd\u8981\u3002\u4ee5\u4e0b\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528 sql \u67e5\u8be2\u5b9e\u73b0\u6b64\u76ee\u6807\u3002<\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b\u8868\u683c\uff1a<\/p>\n<ul>\n<li>fruits\uff08id, name\uff09<\/li>\n<li>buckets\uff08id\uff09<\/li>\n<li>fruitbucket\uff08id, bucket_id, fruit_id, count\uff09<\/li>\n<\/ul>\n<p>\u5df2\u77e5 1 \u53f7\u7bee\u5b50\u5305\u542b 2 \u4e2a\u82f9\u679c\uff08fruit_id=2\uff09\u548c 1 \u4e2a\u9999\u8549\uff08fruit_id=3\uff09\uff0c\u5982\u4f55\u67e5\u8be2\u662f\u5426\u5b58\u5728\u53e6\u4e00\u4e2a\u7bee\u5b50\u4e5f\u4ec5\u5305\u542b 2 \u4e2a\u82f9\u679c\u548c 1 \u4e2a\u9999\u8549\uff1f<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<p>\u4e00\u79cd\u65b9\u6cd5\u662f\u9996\u5148\u627e\u5230\u5305\u542b 2 \u4e2a\u82f9\u679c\u7684\u7bee\u5b50\uff08t1\uff09\uff0c\u7136\u540e\u4e0e\u5305\u542b 1 \u4e2a\u9999\u8549\u7684\u7bee\u5b50\uff08t2\uff09\u8fdb\u884c\u4ea4\u53c9\u8fde\u63a5\u3002\u8fd9\u5c06\u8fd4\u56de\u6240\u6709\u540c\u65f6\u6ee1\u8db3\u8fd9\u4e24\u4e2a\u6761\u4ef6\u7684\u7bee\u5b50\u3002<\/p>\n<p>\u4e0b\u4e00\u6b65\u662f\u6392\u9664\u5176\u4ed6\u6c34\u679c\u4e0e\u8fd9\u4e9b\u7bee\u5b50\u76f8\u5173\u7684\u7bee\u5b50\u3002\u4e3a\u6b64\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4e0a\u8ff0\u67e5\u8be2\u7ed3\u679c\uff08t3\uff09\u4e0e\u53ea\u5305\u542b\u4e24\u4e2a\u6c34\u679c\u7684\u7bee\u5b50\u96c6\u5408\uff08t4\uff09\u8fde\u63a5\u8d77\u6765\u3002<\/p>\n<p><strong>sql \u67e5\u8be2\uff1a<\/strong><\/p>\n<pre>select t3.bucket_id from \n(\n  select t1.bucket_id from\n  (select bucket_id from FruitBucket where fruit_id = 2 and count = 2) t1\n  inner join \n  (select bucket_id from FruitBucket where fruit_id = 3 and count = 1) t2\n  on t1.bucket_id = t2.bucket_id\n) t3,\n(\n  select bucket_id\n  from FruitBucket\n  group by bucket_id\n  having count(1) = 2\n) t4\nwhere t3.bucket_id = t4.bucket_id<\/pre>\n<p>\u6b64\u67e5\u8be2\u5c06\u8fd4\u56de\u7b26\u5408\u6307\u5b9a\u6761\u4ef6\u7684\u7bee\u5b50\u7684 id\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300a\u591a\u5bf9\u591a\u5173\u8054\u4e2d\uff0c\u5982\u4f55\u67e5\u8be2\u662f\u5426\u5b58\u5728\u5305\u542b\u6307\u5b9a\u6c34\u679c\u7ec4\u5408\u7684\u7bee\u5b50\uff1f \u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>\u591a\u5bf9\u591a\u5173\u8054\u4e2d\uff0c\u5982\u4f55\u67e5\u8be2\u662f\u5426\u5b58\u5728\u5305&#46;&#46;&#46;<\/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-200542","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200542","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=200542"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200542\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200542"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200542"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200542"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}