{"id":200452,"date":"2025-05-06T13:29:25","date_gmt":"2025-05-06T05:29:25","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200452\/"},"modified":"2025-05-06T13:29:25","modified_gmt":"2025-05-06T05:29:25","slug":"%e5%a6%82%e4%bd%95%e7%bb%9f%e8%ae%a1%e6%8c%87%e5%ae%9a%e6%97%b6%e9%97%b4%e8%8c%83%e5%9b%b4%e5%86%85%e8%ae%b0%e5%bd%95%e6%95%b0%e9%87%8f%e8%b6%85%e8%bf%87%e9%98%88%e5%80%bc%e7%9a%84-item_id-%e9%9b%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200452\/","title":{"rendered":"\u5982\u4f55\u7edf\u8ba1\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u8bb0\u5f55\u6570\u91cf\u8d85\u8fc7\u9608\u503c\u7684 item_ID \u96c6\u5408\uff1f"},"content":{"rendered":"

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

\u5982\u4f55\u7edf\u8ba1\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u8bb0\u5f55\u6570\u91cf\u8d85\u8fc7\u9608\u503c\u7684 item_ID \u96c6\u5408\uff1f<\/h1>\n

\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662f\u4e3b\u673a\u5b9d\u8d1d\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n

<\/p>\n

sql \u7edf\u8ba1\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u7684\u8bb0\u5f55\u4e2a\u6570\u8d85\u8fc7\u6307\u5b9a\u9608\u503c\u7684\u96c6\u5408<\/strong><\/p>\n

\u7ed9\u5b9a\u4e00\u4e2a\u8bb0\u5f55\u8868\uff0c\u5176\u4e2d\u5305\u542b id\u3001item_id \u548c\u8bb0\u5f55\u65f6\u95f4\uff08time\uff09\uff0c\u4efb\u52a1\u662f\u7edf\u8ba1\u51fa\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u8bb0\u5f55\u4e2a\u6570\u8d85\u8fc7\u6307\u5b9a\u9608\u503c\u7684 item_id \u96c6\u5408\u3002<\/p>\n

\u5047\u8bbe\u65f6\u95f4\u5355\u4f4d\u4e3a\u79d2\uff0c\u8868\u7ed3\u6784\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n\n\n\n\n
\u5217\u540d<\/th>\n\u6570\u636e\u7c7b\u578b<\/th>\n<\/tr>\n<\/thead>\n
id<\/td>\n\u81ea\u589e<\/td>\n<\/tr>\n
item_id<\/td>\n\u5916\u952e<\/td>\n<\/tr>\n
time<\/td>\n\u6574\u6570<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u4f8b\u5982\uff0c\u8f93\u5165\u8868\u5982\u4e0b\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
id<\/th>\nitem_id<\/th>\ntime<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n1<\/td>\n1<\/td>\n<\/tr>\n
2<\/td>\n2<\/td>\n2<\/td>\n<\/tr>\n
3<\/td>\n2<\/td>\n2<\/td>\n<\/tr>\n
4<\/td>\n2<\/td>\n3<\/td>\n<\/tr>\n
5<\/td>\n2<\/td>\n3<\/td>\n<\/tr>\n
6<\/td>\n1<\/td>\n4<\/td>\n<\/tr>\n
7<\/td>\n1<\/td>\n7<\/td>\n<\/tr>\n
8<\/td>\n1<\/td>\n7<\/td>\n<\/tr>\n
9<\/td>\n1<\/td>\n8<\/td>\n<\/tr>\n
10<\/td>\n2<\/td>\n8<\/td>\n<\/tr>\n
11<\/td>\n1<\/td>\n8<\/td>\n<\/tr>\n
12<\/td>\n1<\/td>\n9<\/td>\n<\/tr>\n
13<\/td>\n2<\/td>\n11<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u76ee\u6807\u662f\u7edf\u8ba1\u51fa\u5728\u4efb\u610f\u8fde\u7eed\u7684 5 \u79d2\u65f6\u95f4\u8303\u56f4\u5185\uff0c\u8bb0\u5f55\u4e2a\u6570\u8d85\u8fc7 5 \u4e2a\u7684 item_id \u96c6\u5408\u3002<\/p>\n

\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n

WITH temp AS (\n  SELECT item_ID, COUNT(*) AS count_\n  FROM tableName\n  WHERE time BETWEEN (SELECT time FROM tableName ORDER BY time DESC OFFSET 5 ROWS) AND time\n  GROUP BY item_ID\n)\nSELECT DISTINCT item_ID\nFROM temp\nWHERE count_ > 5;<\/pre>\n
\u89e3\u91ca\uff1a<\/strong><\/p>\n
\u5916\u90e8 cte temp \u8ba1\u7b97\u4e86\u6bcf\u4e2a item_id \u5728\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u7684\u8bb0\u5f55\u6570\u3002\u7136\u540e\uff0c\u5916\u90e8\u67e5\u8be2\u4ece temp \u4e2d\u9009\u62e9\u8bb0\u5f55\u4e2a\u6570\u5927\u4e8e\u6307\u5b9a\u9608\u503c (5) \u7684 item_id\u3002<\/p>\n
\u793a\u4f8b\u8f93\u51fa\uff1a<\/strong><\/p>\n\n\n\n\n\n
item_id<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300a\u5982\u4f55\u7edf\u8ba1\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u8bb0\u5f55\u6570\u91cf\u8d85\u8fc7\u9608\u503c\u7684 item_ID \u96c6\u5408\uff1f\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u5427\uff01<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u5982\u4f55\u7edf\u8ba1\u6307\u5b9a\u65f6\u95f4\u8303\u56f4\u5185\u8bb0\u5f55\u6570\u91cf\u8d85...<\/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-200452","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200452","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=200452"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200452\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200452"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200452"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}