{"id":564,"date":"2021-10-20T23:15:26","date_gmt":"2021-10-20T15:15:26","guid":{"rendered":"https:\/\/www.dataisfun.cn\/?p=564"},"modified":"2021-12-13T15:51:15","modified_gmt":"2021-12-13T07:51:15","slug":"sql%e8%bf%9e%e7%bb%ad%e7%99%bb%e5%bd%95","status":"publish","type":"post","link":"https:\/\/www.dataisfun.cn\/?p=564","title":{"rendered":"SQL-\u7ecf\u5178\u7684\u8fde\u7eed\u767b\u5f55\u95ee\u9898"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\" style=\"font-size:12px\">SQL\u8fde\u7eed\u767b\u5f55 \u95ee\u9898\u53ef\u4ee5\u8bf4\u662fSQL\u7b14\u8bd5\u9898\u7684\u5e38\u5ba2\u4e86\uff0c\u4e00\u662f\u56e0\u4e3a\u5de5\u4f5c\u4e2d\u6709\u4e0d\u5c11\u5e94\u7528\u573a\u666f\uff0c\u4e8c\u662f\u56e0\u4e3a\u80fd\u521d\u6b65\u8003\u5bdf\u6570\u5206\u4eba\u5458\u7684SQL\u529f\u5e95\u3002\u8fde\u7eed\u767b\u5f55\u4e3b\u8981\u67092\u4e2a\u65b9\u9762\u7684\u5e94\u7528\uff0c\u5176\u4e00\u662f\u5708\u9009\u5ba2\u6237\uff0c\u6bd4\u5982\u9009\u53d6\u8fde\u7eed\u767b\u5f557\u5929\u7684\u5ba2\u6237\uff0c\u5176\u4e8c\u662f\u5ba2\u6237\u6807\u7b7e\uff0c\u6bd4\u5982\u8ba1\u7b97\u5ba2\u6237\u8fc7\u53bb90\u5929\u7684\u6700\u957f\u8fde\u7eed\u767b\u5f55\u5929\u6570\u4f5c\u4e3a\u884d\u751f\u53d8\u91cf\u3002\u672c\u6587\u5c31\u603b\u7ed3\u4e00\u4e0bSQL\u8fde\u7eed\u767b\u5f55\u95ee\u9898\u7684\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:12px\">\u9996\u5148\u660e\u786e\u8fde\u7eed\u767b\u5f55\u95ee\u9898\u7684\u5e95\u5c42\u5904\u7406\u903b\u8f91\uff0c\u8fde\u7eed\u767b\u5f55\u95ee\u9898\u7684\u6838\u5fc3\u662f\u8fde\u7eed\uff0c\u8fde\u7eed\u7684\u5185\u5c42\u542b\u4e49\u662f\u65e5\u671f\u9012\u589e1\uff0c\u6211\u4eec\u4e3b\u8981\u5c31\u662f\u4ece\u9012\u589e1\u8fd9\u4e2a\u70b9\u5165\u624b\u3002 <\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:12px\">\u4e0b\u9762\u770b\u770b\u5177\u4f53\u5b9e\u4f8b\u7684\u4ee3\u7801\u5b9e\u73b0\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:12px\">\u5047\u8bbe\u6211\u4eec\u6709\u5982\u4e0b\u6e90\u8868login_detail\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.dataisfun.cn\/wp-content\/uploads\/2021\/10\/\u8fde\u7eed\u767b\u5f553.png\" alt=\"\" class=\"wp-image-582\" width=\"493\" height=\"425\" srcset=\"https:\/\/www.dataisfun.cn\/wp-content\/uploads\/2021\/10\/\u8fde\u7eed\u767b\u5f553.png 985w, https:\/\/www.dataisfun.cn\/wp-content\/uploads\/2021\/10\/\u8fde\u7eed\u767b\u5f553-300x259.png 300w, https:\/\/www.dataisfun.cn\/wp-content\/uploads\/2021\/10\/\u8fde\u7eed\u767b\u5f553-768x662.png 768w, https:\/\/www.dataisfun.cn\/wp-content\/uploads\/2021\/10\/\u8fde\u7eed\u767b\u5f553-348x300.png 348w\" sizes=\"auto, (max-width: 493px) 100vw, 493px\" \/><\/figure>\n\n\n\n<ul class=\"has-vivid-cyan-blue-color has-text-color wp-block-list\" style=\"font-size:12px\"><li><strong>\u9009\u53d6\u8fde\u7eed\u767b\u5f557\u5929\u7684\u5ba2\u6237\uff1a<\/strong><\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">--\u65b9\u6cd51\uff1a\u4f7f\u7528row_number()\u521b\u5efa\u8f85\u52a9\u5217\nwith\n--1\uff1a\u6309\u5ba2\u6237\u53f7+\u767b\u5f55\u65e5\u671f\u53bb\u91cd\u6392\u5e8f\n    tmp1 as (\n        select\n            cust_id,\n            date(login_time) as login_date\n        from login_detail\n        group by 1,2\n        order by 1,2\n    ),\n\n--2\uff1a\u6309\u5ba2\u6237\u53f7\u5206\u7ec4\u6dfb\u52a0\u884c\u53f7\n    tmp2 as (\n        select\n            cust_id,\n            login_date,\n            row_number() over (partition by cust_id order by login_date) as row_num\n        from tmp1\n    ),\n\n--3\uff1a\u521b\u5efa\u8f85\u52a9\u5217-\u767b\u5f55\u65e5\u671f\u51cf\u884c\u53f7\n    tmp3 as (\n        select\n            cust_id,\n            login_date,\n            date_add('day', -row_num, login_date) as login_date_2\n        from tmp2\n    )\n\n--4\uff1a\u6309\u5ba2\u6237\u53f7+\u8f85\u52a9\u5217\u5206\u7ec4\u8ba1\u6570\u5e76\u7b5b\u9009\u51fa\u8ba1\u6570\u4e3a7\u7684\u5ba2\u6237\nselect\n    cust_id\nfrom tmp3\ngroup by cust_id, login_date_2\nhaving count(1) = 7;  --\u6309\u9700\u8c03\u6574\u6761\u4ef6\n\n\n\n--\u65b9\u6cd52\uff1a\u4f7f\u7528lag()\u521b\u5efa\u8f85\u52a9\u5217\nwith\n--1\uff1a\u6309\u5ba2\u6237\u53f7+\u767b\u5f55\u65e5\u671f\u53bb\u91cd\u6392\u5e8f\n    tmp1 as (\n        select\n            cust_id,\n            date(login_time) as login_date\n        from login_detail\n        group by 1,2\n        order by 1,2\n    ),\n\n--2\uff1a\u4f7f\u7528lag()\u521b\u5efa\u8f85\u52a9\u5217\n    tmp2 as (\n        select\n            cust_id,\n            login_date,\n            lag(login_date, 6) over (partition by cust_id order by login_date) as login_date_2,  --\u6309\u9700\u8c03\u6574\n            date_add('day', -6, login_date) as login_date_3  --\u6309\u9700\u8c03\u6574\n        from tmp1\n    )\n\n--3\uff1a\u7b5b\u9009\u51fa\u5ba2\u6237\nselect\n    cust_id\nfrom tmp2\nwhere login_date_2 = login_date_3;<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:12px\">\u6700\u7ec8\u7b5b\u9009\u51fa\u7684\u7ed3\u679c\u4e3a\u5ba2\u6237A\uff0c\u80fd\u591f\u770b\u51fa\u65b9\u6cd52\u6bd4\u65b9\u6cd51\u7cbe\u7b80\u70b9\uff0c\u4f46\u65b9\u6cd51\u5e94\u7528\u66f4\u7075\u6d3b\u3002<\/p>\n\n\n\n<ul class=\"has-vivid-cyan-blue-color has-text-color wp-block-list\" style=\"font-size:12px\"><li><strong>\u8ba1\u7b97\u6bcf\u4e2a\u5ba2\u6237\u7684\u6700\u957f\u8fde\u7eed\u767b\u5f55\u5929\u6570\uff1a<\/strong><\/li><\/ul>\n\n\n\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"sql\" data-enlighter-theme=\"\" data-enlighter-highlight=\"\" data-enlighter-linenumbers=\"\" data-enlighter-lineoffset=\"\" data-enlighter-title=\"\" data-enlighter-group=\"\">with\n--1\uff1a\u6309\u5ba2\u6237\u53f7+\u767b\u5f55\u65e5\u671f\u53bb\u91cd\u6392\u5e8f\n    tmp1 as (\n        select\n            cust_id,\n            date(login_time) as login_date\n        from login_detail\n        group by 1,2\n        order by 1,2\n    ),\n\n--2\uff1a\u6309\u5ba2\u6237\u53f7\u5206\u7ec4\u6dfb\u52a0\u884c\u53f7\n    tmp2 as (\n        select\n            cust_id,\n            login_date,\n            row_number() over (partition by cust_id order by login_date) as row_num\n        from tmp1\n    ),\n\n--3\uff1a\u521b\u5efa\u8f85\u52a9\u5217-\u767b\u5f55\u65e5\u671f\u51cf\u884c\u53f7\n    tmp3 as (\n        select\n            cust_id,\n            login_date,\n            date_add('day', -row_num, login_date) as login_date_2\n        from tmp2\n    ),\n\n--4\uff1a\u6309\u5ba2\u6237\u53f7+\u8f85\u52a9\u5217\u5206\u7ec4\u8ba1\u6570\n    tmp4 as (\n        select\n            cust_id,\n            login_date_2,\n            count(1) as consecutive_login_days\n        from tmp3\n        group by 1,2\n    )\n\n--5\uff1a\u6309\u5ba2\u6237\u53f7\u5206\u7ec4\u53d6\u6700\u5927\u8fde\u7eed\u767b\u5f55\u5929\u6570\nselect\n    cust_id,\n    max(consecutive_login_days) as max_consecutive_login_days\nfrom tmp4\ngroup by 1;<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:12px\">\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.dataisfun.cn\/wp-content\/uploads\/2021\/10\/\u8fde\u7eed\u767b\u5f554.png\" alt=\"\" class=\"wp-image-583\" width=\"267\" height=\"91\" srcset=\"https:\/\/www.dataisfun.cn\/wp-content\/uploads\/2021\/10\/\u8fde\u7eed\u767b\u5f554.png 534w, https:\/\/www.dataisfun.cn\/wp-content\/uploads\/2021\/10\/\u8fde\u7eed\u767b\u5f554-300x102.png 300w\" sizes=\"auto, (max-width: 267px) 100vw, 267px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:12px\">\u4ee3\u7801\u4f7f\u7528Presto SQL\u5b9e\u73b0\uff0c\u5176\u4ed6SQL\u53ef\u80fd\u5728\u65e5\u671f\u52a0\u51cf\u51fd\u6570\u4e0a\u4f1a\u6709\u5dee\u5f02\u3002\u503c\u5f97\u5f3a\u8c03\u7684\u662f\uff0c\u8fde\u7eed\u767b\u5f55\u95ee\u9898\u7684\u6838\u5fc3\u662f\u5982\u4f55\u5224\u65ad\u8fde\u7eed\uff0c\u767b\u5f55\u53ea\u662f\u4e2a\u7279\u5b9a\u884c\u4e3a\uff0c\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u5c06\u767b\u5f55\u884c\u4e3a\u6362\u6210\u5176\u4ed6\u7528\u6237\u884c\u4e3a\uff0c\u95ee\u9898\u6d89\u53ca\u7684\u5b57\u6bb5\u5b9e\u9645\u5c312\u4e2a\uff1a\u5ba2\u6237ID+\u65e5\u671f\uff0c\u53ea\u8981\u638c\u63e1\u4e86\u6587\u4e2d\u6240\u793a\u7684\u5904\u7406\u65b9\u6cd5\uff0c\u5c31\u53ef\u4ee5\u505a\u5230\u4e3e\u4e00\u53cd\u4e09\u4e86\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:12px\"><br><span class=\"sme-text-color has-cyan-bluish-gray-color\">\u539f\u521b\u6587\u7ae0\uff0c\u6b22\u8fce\u8f6c\u8f7d\uff0c\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u51fa\u5904\u5e76\u7559\u4e0b\u539f\u6587\u94fe\u63a5\u3002<\/span>  <\/p>\n","protected":false},"excerpt":{"rendered":"<p>SQL\u8fde\u7eed\u767b\u5f55 \u95ee\u9898\u53ef\u4ee5\u8bf4\u662fSQL\u7b14\u8bd5\u9898\u7684\u5e38\u5ba2\u4e86\uff0c\u4e00\u662f\u56e0\u4e3a\u5de5\u4f5c\u4e2d\u6709\u4e0d\u5c11\u5e94\u7528\u573a\u666f\uff0c\u4e8c\u662f\u56e0\u4e3a\u80fd\u521d\u6b65\u8003\u5bdf\u6570&hellip; <a href=\"https:\/\/www.dataisfun.cn\/?p=564\" class=\"more-link read-more\" rel=\"bookmark\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">SQL-\u7ecf\u5178\u7684\u8fde\u7eed\u767b\u5f55\u95ee\u9898<\/span><i class=\"fa fa-arrow-right\"><\/i><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6],"class_list":["post-564","post","type-post","status-publish","format-standard","hentry","category-sql","tag-sql","h-entry","h-as-article"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.11 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SQL\u8fde\u7eed\u767b\u5f55 | SQL\u8fde\u7eed\u767b\u5f55\u95ee\u9898 | SQL\u8fde\u7eed\u767b\u5f557\u5929 - \u6570\u636e\u597d\u73a9<\/title>\n<meta name=\"description\" content=\"SQL\u8fde\u7eed\u767b\u5f55 \u53ef\u4ee5\u8bf4\u662fSQL\u7b14\u8bd5\u9898\u7684\u5e38\u5ba2\u4e86\uff0c\u4e00\u662f\u56e0\u4e3a\u5de5\u4f5c\u4e2d\u6709\u4e0d\u5c11\u5e94\u7528\u573a\u666f\uff0c\u4e8c\u662f\u56e0\u4e3a\u80fd\u521d\u6b65\u8003\u5bdf\u6570\u5206\u4eba\u5458\u7684SQL\u529f\u5e95\u3002\u8fde\u7eed\u767b\u5f55\u4e3b\u8981\u67092\u4e2a\u65b9\u9762\u7684\u5e94\u7528\uff0c\u5176\u4e00\u662f\u5708\u9009\u5ba2\u6237\uff0c\u6bd4\u5982\u9009\u53d6\u8fde\u7eed\u767b\u5f557\u5929\u7684\u5ba2\u6237\uff0c\u5176\u4e8c\u662f\u5ba2\u6237\u6807\u7b7e\uff0c\u6bd4\u5982\u8ba1\u7b97\u5ba2\u6237\u8fc7\u53bb90\u5929\u7684\u6700\u957f\u8fde\u7eed\u767b\u5f55\u5929\u6570\u4f5c\u4e3a\u884d\u751f\u53d8\u91cf\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dataisfun.cn\/?p=564\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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