{"id":160333,"date":"2024-11-03T22:14:21","date_gmt":"2024-11-03T14:14:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/160333\/"},"modified":"2024-11-03T22:14:22","modified_gmt":"2024-11-03T14:14:22","slug":"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e7%aa%97%e5%8f%a3%e5%87%bd%e6%95%b8%e8%aa%aa%e6%98%8e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/160333\/","title":{"rendered":"OceanBase \u6559\u7a0b\uff1aOceanBase \u7a97\u53e3\u51fd\u6578\u8aaa\u660e"},"content":{"rendered":"<h1 id=\"oceanbase-%e6%95%99%e7%a8%8b%ef%bc%9aoceanbase-%e7%aa%97%e5%8f%a3%e5%87%bd%e6%95%b8%e8%aa%aa%e6%98%8e-VIbcpfSzlq\">OceanBase \u6559\u7a0b\uff1aOceanBase \u7a97\u53e3\u51fd\u6578\u8aaa\u660e<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u6280\u8853\u4e2d\uff0c\u7a97\u53e3\u51fd\u6578\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u66f4\u8907\u96dc\u7684\u8a08\u7b97\u3002OceanBase \u4f5c\u70ba\u4e00\u500b\u9ad8\u6027\u80fd\u7684\u5206\u4f48\u5f0f\u6578\u64da\u5eab\uff0c\u652f\u6301\u591a\u7a2e SQL \u8a9e\u6cd5\uff0c\u5305\u62ec\u7a97\u53e3\u51fd\u6578\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e OceanBase \u7684\u7a97\u53e3\u51fd\u6578\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4f7f\u7528\u8aaa\u660e\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%aa%97%e5%8f%a3%e5%87%bd%e6%95%b8%ef%bc%9f-VIbcpfSzlq\">\u4ec0\u9ebc\u662f\u7a97\u53e3\u51fd\u6578\uff1f<\/h2>\n<p>\u7a97\u53e3\u51fd\u6578\u662f\u4e00\u7a2e\u7279\u6b8a\u7684 SQL \u51fd\u6578\uff0c\u5141\u8a31\u7528\u6236\u5728\u67e5\u8a62\u7d50\u679c\u7684\u67d0\u500b\u201c\u7a97\u53e3\u201d\u5167\u9032\u884c\u8a08\u7b97\u3002\u8207\u805a\u5408\u51fd\u6578\u4e0d\u540c\uff0c\u7a97\u53e3\u51fd\u6578\u4e0d\u6703\u5c07\u7d50\u679c\u884c\u5408\u4f75\uff0c\u800c\u662f\u4fdd\u7559\u539f\u59cb\u884c\uff0c\u4e26\u5728\u6bcf\u4e00\u884c\u4e0a\u8a08\u7b97\u7d50\u679c\u3002\u9019\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u5728\u4e0d\u4e1f\u5931\u884c\u7684\u60c5\u6cc1\u4e0b\u9032\u884c\u66f4\u8907\u96dc\u7684\u6578\u64da\u5206\u6790\u3002<\/p>\n<h2 id=\"oceanbase-%e4%b8%ad%e7%9a%84%e7%aa%97%e5%8f%a3%e5%87%bd%e6%95%b8%e8%aa%9e%e6%b3%95-VIbcpfSzlq\">OceanBase \u4e2d\u7684\u7a97\u53e3\u51fd\u6578\u8a9e\u6cd5<\/h2>\n<p>\u5728 OceanBase \u4e2d\uff0c\u7a97\u53e3\u51fd\u6578\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>\n() OVER (\n    [PARTITION BY ]\n    [ORDER BY ]\n    [ROWS|RANGE ]\n)\n<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c \u53ef\u4ee5\u662f\u5982 <code>ROW_NUMBER()<\/code>\u3001<code>RANK()<\/code>\u3001<code>DENSE_RANK()<\/code>\u3001<code>SUM()<\/code> \u7b49\u51fd\u6578\u3002\u7528\u6236\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9078\u64c7\u5408\u9069\u7684\u7a97\u53e3\u51fd\u6578\u9032\u884c\u8a08\u7b97\u3002<\/p>\n<h2 id=\"%e7%aa%97%e5%8f%a3%e5%87%bd%e6%95%b8%e7%9a%84%e7%a4%ba%e4%be%8b-VIbcpfSzlq\">\u7a97\u53e3\u51fd\u6578\u7684\u793a\u4f8b<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8-row_number-%e5%87%bd%e6%95%b8-VIbcpfSzlq\">1. \u4f7f\u7528 ROW_NUMBER() \u51fd\u6578<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>sales<\/code> \u7684\u8868\uff0c\u5305\u542b\u4ee5\u4e0b\u6578\u64da\uff1a<\/p>\n<pre><code>\n| id | product | amount |\n|----|---------|--------|\n| 1  | A       | 100    |\n| 2  | B       | 150    |\n| 3  | A       | 200    |\n| 4  | B       | 250    |\n<\/code><\/pre>\n<p>\u6211\u5011\u5e0c\u671b\u70ba\u6bcf\u500b\u7522\u54c1\u7684\u92b7\u552e\u8a18\u9304\u5206\u914d\u4e00\u500b\u552f\u4e00\u7684\u5e8f\u865f\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>ROW_NUMBER()<\/code> \u51fd\u6578\uff1a<\/p>\n<pre><code>\nSELECT \n    id, \n    product, \n    amount, \n    ROW_NUMBER() OVER (PARTITION BY product ORDER BY amount DESC) AS rank\nFROM \n    sales;\n<\/code><\/pre>\n<p>\u9019\u5c07\u8fd4\u56de\u6bcf\u500b\u7522\u54c1\u7684\u92b7\u552e\u8a18\u9304\uff0c\u4e26\u6839\u64da\u92b7\u552e\u91d1\u984d\u7684\u964d\u5e8f\u70ba\u6bcf\u689d\u8a18\u9304\u5206\u914d\u4e00\u500b\u5e8f\u865f\u3002<\/p>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8-sum-%e5%87%bd%e6%95%b8%e8%a8%88%e7%ae%97%e7%b4%af%e8%a8%88%e9%8a%b7%e5%94%ae%e9%a1%8d-VIbcpfSzlq\">2. \u4f7f\u7528 SUM() \u51fd\u6578\u8a08\u7b97\u7d2f\u8a08\u92b7\u552e\u984d<\/h3>\n<p>\u5982\u679c\u6211\u5011\u60f3\u8981\u8a08\u7b97\u6bcf\u500b\u7522\u54c1\u7684\u7d2f\u8a08\u92b7\u552e\u984d\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>SUM()<\/code> \u51fd\u6578\uff1a<\/p>\n<pre><code>\nSELECT \n    id, \n    product, \n    amount, \n    SUM(amount) OVER (PARTITION BY product ORDER BY id) AS cumulative_amount\nFROM \n    sales;\n<\/code><\/pre>\n<p>\u9019\u5c07\u70ba\u6bcf\u500b\u7522\u54c1\u7684\u6bcf\u689d\u8a18\u9304\u8a08\u7b97\u5230\u76ee\u524d\u70ba\u6b62\u7684\u7d2f\u8a08\u92b7\u552e\u984d\u3002<\/p>\n<h2 id=\"%e7%aa%97%e5%8f%a3%e5%87%bd%e6%95%b8%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-VIbcpfSzlq\">\u7a97\u53e3\u51fd\u6578\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u6392\u540d\uff1a<\/strong>\u4f7f\u7528\u7a97\u53e3\u51fd\u6578\u53ef\u4ee5\u8f15\u9b06\u5730\u70ba\u6578\u64da\u96c6\u4e2d\u7684\u9805\u76ee\u9032\u884c\u6392\u540d\u3002<\/li>\n<li><strong>\u7d2f\u8a08\u8a08\u7b97\uff1a<\/strong>\u53ef\u4ee5\u8a08\u7b97\u7d2f\u8a08\u548c\u3001\u5e73\u5747\u503c\u7b49\uff0c\u4fbf\u65bc\u9032\u884c\u6642\u9593\u5e8f\u5217\u5206\u6790\u3002<\/li>\n<li><strong>\u5206\u7d44\u7d71\u8a08\uff1a<\/strong>\u5728\u4e0d\u5408\u4f75\u884c\u7684\u60c5\u6cc1\u4e0b\uff0c\u5c0d\u5206\u7d44\u6578\u64da\u9032\u884c\u7d71\u8a08\u5206\u6790\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-VIbcpfSzlq\">\u7e3d\u7d50<\/h2>\n<p>\u7a97\u53e3\u51fd\u6578\u5728 OceanBase \u4e2d\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u6578\u64da\u5206\u6790\u80fd\u529b\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u66f4\u8907\u96dc\u7684\u8a08\u7b97\u3002\u901a\u904e\u4f7f\u7528\u7a97\u53e3\u51fd\u6578\uff0c\u7528\u6236\u53ef\u4ee5\u8f15\u9b06\u5730\u9032\u884c\u6578\u64da\u6392\u540d\u3001\u7d2f\u8a08\u8a08\u7b97\u548c\u5206\u7d44\u7d71\u8a08\u7b49\u64cd\u4f5c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6027\u80fd\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u5834\u666f\uff0cOceanBase \u662f\u4e00\u500b\u503c\u5f97\u8003\u616e\u7684\u9078\u64c7\u3002\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u6216\u5176\u4ed6 <a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a> \u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22 OceanBase \u7a97\u53e3\u51fd\u6578\u7684\u4f7f\u7528\u65b9\u6cd5\u8207\u793a\u4f8b\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\uff0c\u638c\u63e1\u9ad8\u6548\u6578\u64da\u5206\u6790\u6280\u5de7\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-160333","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160333","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=160333"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160333\/revisions"}],"predecessor-version":[{"id":160334,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/160333\/revisions\/160334"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=160333"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=160333"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=160333"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}