{"id":325,"date":"2024-04-21T12:20:32","date_gmt":"2024-04-21T12:20:32","guid":{"rendered":"http:\/\/www.keshebang.com\/?p=325"},"modified":"2024-04-21T12:20:33","modified_gmt":"2024-04-21T12:20:33","slug":"sql%e7%bb%9f%e8%ae%a1%e5%ad%97%e6%ae%b5%e8%bf%9e%e7%bb%ad%e9%80%92%e5%a2%9e%e7%9a%84%e6%ac%a1%e6%95%b0","status":"publish","type":"post","link":"http:\/\/www.keshebang.com\/?p=325","title":{"rendered":"sql\u7edf\u8ba1\u5b57\u6bb5\u8fde\u7eed\u9012\u589e\u7684\u6b21\u6570"},"content":{"rendered":"\n<p>\u573a\u666f\uff1a\u8868\u4e2d\u67d0\u5b57\u6bb5\u4e3a\u6574\u578b\uff0c\u503c\u4e3a1,2,3,5,6,7,8,10\u7b49\uff0c\u73b0\u9700\u8981\u7edf\u8ba1\u8be5\u5b57\u6bb5\u503c\u8fde\u7eed\u9012\u589e\u7684\u6b21\u6570\uff0c\u65ad\u53f7\u5219\u4ece\u65b0\u5f00\u59cb\uff0c\u6bd4\u59821-3\u4e3a3\uff0c5-8\u4e3a4,10\u4e3a1\u3002<\/p>\n\n\n\n<p>\u539f\u59cb\u6570\u636e\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">id<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">2<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">5<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">6<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">7<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">8<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u671f\u671b\u7ed3\u679c\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\">id<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u8fde\u7eed\u6b21\u6570<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">1-3<\/td><td class=\"has-text-align-center\" data-align=\"center\">3<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">5-8<\/td><td class=\"has-text-align-center\" data-align=\"center\">4<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\">10<\/td><td class=\"has-text-align-center\" data-align=\"center\">1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u6570\u636e\u51c6\u5907\uff1a<\/p>\n\n\n\n<p>create table tb_num<br>(id int)<\/p>\n\n\n\n<p>insert into tb_num values(1)<br>insert into tb_num values(2)<br>insert into tb_num values(3)<br>insert into tb_num values(5)<br>insert into tb_num values(6)<br>insert into tb_num values(7)<br>insert into tb_num values(8)<br>insert into tb_num values(10)<\/p>\n\n\n\n<p>\u539f\u7406\u5206\u6790\uff1a\u9700\u8981\u7edf\u8ba1\u8fde\u7eed\u9012\u589e\u7684\u6b21\u6570\uff0c\u6211\u4eec\u9996\u5148\u60f3\u5230\u7684\u5e94\u8be5\u662fgroup by ,\u4f46group by \u662f\u7edf\u8ba1\u7684\u76f8\u540c\u503c\u7684\u6b21\u6570\uff0c\u76ee\u524d\u5e76\u4e0d\u6ee1\u8db3\u3002<\/p>\n\n\n\n<p>\u6211\u4eec\u53ef\u4ee5\u7ed9\u6bcf\u4e00\u884c\u589e\u52a0\u4e00\u4e2a\u884c\u53f7\uff0c\u884c\u53f7\u6bcf\u884c\u589e\u52a01\uff0cid\u5b57\u6bb5\u8fde\u7eed\u7684\u8bdd\uff0c\u4e5f\u662f\u589e\u52a01\uff0cid\u8fde\u7eed\u7684\u8bdd\uff0c\u5176\u503c\u51cf\u53bb\u5bf9\u5e94\u884c\u53f7\uff0c\u503c\u5e94\u8be5\u662f\u76f8\u7b49\u7684\uff0c\u5373\u53ef\u5206\u7ec4\u7edf\u8ba1\u3002<\/p>\n\n\n\n<p>1\u3001\u589e\u52a0\u884c\u53f7\uff0c\u5e76\u8ba1\u7b97\u5dee\u503c<\/p>\n\n\n\n<p>select id,ROW_NUMBER() over(order by id asc) as num,<br>id-ROW_NUMBER() over(order by id asc) as diff<br>from tb_num<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"515\" height=\"308\" src=\"http:\/\/www.keshebang.com\/wp-content\/uploads\/2024\/04\/image-14.png\" alt=\"\" class=\"wp-image-329\" srcset=\"http:\/\/www.keshebang.com\/wp-content\/uploads\/2024\/04\/image-14.png 515w, http:\/\/www.keshebang.com\/wp-content\/uploads\/2024\/04\/image-14-300x179.png 300w\" sizes=\"(max-width: 515px) 100vw, 515px\" \/><\/figure>\n\n\n\n<p>2\u3001\u6839\u636e\u5dee\u503c\u5206\u7ec4<\/p>\n\n\n\n<p>select convert(varchar,MIN(id))+'-'+convert(varchar,MAX(id)) id,COUNT(*) \u8fde\u7eed\u6b21\u6570<br>from(<br>select id,ROW_NUMBER() over(order by id asc) as num,<br>id-ROW_NUMBER() over(order by id asc) as diff<br>from tb_num<br>) t<br>group by diff<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"724\" height=\"286\" src=\"http:\/\/www.keshebang.com\/wp-content\/uploads\/2024\/04\/image-15.png\" alt=\"\" class=\"wp-image-330\" srcset=\"http:\/\/www.keshebang.com\/wp-content\/uploads\/2024\/04\/image-15.png 724w, http:\/\/www.keshebang.com\/wp-content\/uploads\/2024\/04\/image-15-300x119.png 300w\" sizes=\"(max-width: 724px) 100vw, 724px\" \/><\/figure>\n\n\n\n<p>\u6839\u636e\u6b64\u539f\u7406\uff0c\u53ef\u4ee5\u7edf\u8ba1\u7f51\u7ad9\u7528\u6237\u7684\u8fde\u7eed\u767b\u9646\u5929\u6570\u7b49\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u573a\u666f\uff1a\u8868\u4e2d\u67d0\u5b57\u6bb5\u4e3a\u6574\u578b\uff0c\u503c\u4e3a1,2,3,5,6,7,8,10\u7b49\uff0c\u73b0\u9700\u8981\u7edf\u8ba1\u8be5\u5b57\u6bb5\u503c\u8fde\u7eed\u9012\u589e\u7684\u6b21\u6570\uff0c\u65ad\u53f7\u5219\u4ece\u65b0\u5f00\u59cb\uff0c\u6bd4\u59821-3\u4e3a3\uff0c5-8\u4e3a4,10\u4e3a1\u3002 \u539f\u59cb\u6570\u636e\uff1a id 1 2 3 5 6 7 8 &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[24],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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property=\"og:url\" content=\"http:\/\/www.keshebang.com\/?p=325\" \/>\n<meta property=\"og:site_name\" content=\"\u8bfe\u8bbe\u5e2e\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-21T12:20:32+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-21T12:20:33+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.keshebang.com\/wp-content\/uploads\/2024\/04\/image-14.png\" \/>\n<meta name=\"author\" content=\"junkui\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"junkui\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" 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