{"id":173231,"date":"2024-11-07T16:16:17","date_gmt":"2024-11-07T08:16:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/173231\/"},"modified":"2024-11-07T16:16:17","modified_gmt":"2024-11-07T08:16:17","slug":"%e5%a6%82%e4%bd%95%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96%e6%80%8e%e9%ba%bc%e5%81%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/173231\/","title":{"rendered":"\u5982\u4f55\u5275\u5efa\u6578\u64da\u5eab\u7269\u5316\u8996\u5716\uff1f (\u6578\u64da\u5eab\u7269\u5316\u8996\u5716\u600e\u9ebc\u505a)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96%ef%bc%9f-%e6%95%b8%e6%93%9a%e5%ba%ab%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96%e6%80%8e%e9%ba%bc%e5%81%9a-anwoNNwjis\">\u5982\u4f55\u5275\u5efa\u6578\u64da\u5eab\u7269\u5316\u8996\u5716\uff1f (\u6578\u64da\u5eab\u7269\u5316\u8996\u5716\u600e\u9ebc\u505a)<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7269\u5316\u8996\u5716\u662f\u4e00\u7a2e\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u7684\u60c5\u6cc1\u4e0b\u3002\u7269\u5316\u8996\u5716\u662f\u57fa\u65bc\u67e5\u8a62\u7684\u7d50\u679c\u96c6\u7684\u5be6\u9ad4\u5b58\u5132\uff0c\u9019\u610f\u5473\u8457\u5b83\u5011\u53ef\u4ee5\u5728\u67e5\u8a62\u6642\u63d0\u4f9b\u66f4\u5feb\u7684\u97ff\u61c9\u6642\u9593\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5275\u5efa\u6578\u64da\u5eab\u7269\u5316\u8996\u5716\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u6b65\u9a5f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96%ef%bc%9f-anwoNNwjis\">\u4ec0\u9ebc\u662f\u7269\u5316\u8996\u5716\uff1f<\/h2>\n<p>\u7269\u5316\u8996\u5716\uff08Materialized View\uff09\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u6578\u64da\u5eab\u5c0d\u8c61\uff0c\u5b83\u4fdd\u5b58\u4e86\u67e5\u8a62\u7684\u7d50\u679c\u96c6\u3002\u8207\u666e\u901a\u8996\u5716\u4e0d\u540c\uff0c\u666e\u901a\u8996\u5716\u5728\u6bcf\u6b21\u67e5\u8a62\u6642\u90fd\u6703\u91cd\u65b0\u8a08\u7b97\uff0c\u800c\u7269\u5316\u8996\u5716\u5247\u5c07\u7d50\u679c\u96c6\u5b58\u5132\u5728\u78c1\u789f\u4e0a\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u7269\u5316\u8996\u5716\u901a\u5e38\u7528\u65bc\u9700\u8981\u983b\u7e41\u67e5\u8a62\u7684\u6578\u64da\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u91cf\u9f90\u5927\u6216\u8a08\u7b97\u8907\u96dc\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h2 id=\"%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96%e7%9a%84%e5%84%aa%e5%8b%a2-anwoNNwjis\">\u7269\u5316\u8996\u5716\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u6027\u80fd\u63d0\u5347\uff1a<\/strong>\u7269\u5316\u8996\u5716\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u67e5\u8a62\u6642\u9593\uff0c\u56e0\u70ba\u5b83\u5011\u5b58\u5132\u4e86\u8a08\u7b97\u7d50\u679c\uff0c\u800c\u4e0d\u662f\u6bcf\u6b21\u90fd\u91cd\u65b0\u8a08\u7b97\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u8cc7\u6e90\u6d88\u8017\uff1a<\/strong>\u901a\u904e\u6e1b\u5c11\u67e5\u8a62\u7684\u8a08\u7b97\u9700\u6c42\uff0c\u7269\u5316\u8996\u5716\u53ef\u4ee5\u964d\u4f4eCPU\u548c\u5167\u5b58\u7684\u4f7f\u7528\u3002<\/li>\n<li><strong>\u7c21\u5316\u67e5\u8a62\uff1a<\/strong>\u7528\u6236\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u7269\u5316\u8996\u5716\u4f86\u7372\u53d6\u8907\u96dc\u7684\u6578\u64da\uff0c\u800c\u4e0d\u9700\u8981\u4e86\u89e3\u5e95\u5c64\u7684\u6578\u64da\u7d50\u69cb\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%89%b5%e5%bb%ba%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96-anwoNNwjis\">\u5982\u4f55\u5275\u5efa\u7269\u5316\u8996\u5716<\/h2>\n<p>\u5275\u5efa\u7269\u5316\u8996\u5716\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\uff0c\u4ee5\u4e0b\u662f\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-1-%e7%a2%ba%e5%ae%9a%e6%9f%a5%e8%a9%a2-anwoNNwjis\">\u6b65\u9a5f 1: \u78ba\u5b9a\u67e5\u8a62<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u78ba\u5b9a\u8981\u7528\u65bc\u5275\u5efa\u7269\u5316\u8996\u5716\u7684\u67e5\u8a62\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>sales<\/code> \u7684\u8868\uff0c\u4e26\u4e14\u6211\u5011\u60f3\u8981\u8a08\u7b97\u6bcf\u500b\u7522\u54c1\u7684\u7e3d\u92b7\u552e\u984d\uff1a<\/p>\n<pre><code>SELECT product_id, SUM(amount) AS total_sales\nFROM sales\nGROUP BY product_id;<\/code><\/pre>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-2-%e5%89%b5%e5%bb%ba%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96-anwoNNwjis\">\u6b65\u9a5f 2: \u5275\u5efa\u7269\u5316\u8996\u5716<\/h3>\n<p>\u4f7f\u7528 SQL \u8a9e\u53e5\u5275\u5efa\u7269\u5316\u8996\u5716\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u7269\u5316\u8996\u5716\u7684\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>CREATE MATERIALIZED VIEW total_sales_view AS\nSELECT product_id, SUM(amount) AS total_sales\nFROM sales\nGROUP BY product_id;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07\u5275\u5efa\u4e00\u500b\u540d\u70ba <code>total_sales_view<\/code> \u7684\u7269\u5316\u8996\u5716\uff0c\u4e26\u5c07\u67e5\u8a62\u7d50\u679c\u5b58\u5132\u5728\u5176\u4e2d\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f-3-%e5%88%b7%e6%96%b0%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96-anwoNNwjis\">\u6b65\u9a5f 3: \u5237\u65b0\u7269\u5316\u8996\u5716<\/h3>\n<p>\u7269\u5316\u8996\u5716\u7684\u6578\u64da\u4e0d\u6703\u81ea\u52d5\u66f4\u65b0\uff0c\u56e0\u6b64\u9700\u8981\u5b9a\u671f\u5237\u65b0\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u624b\u52d5\u5237\u65b0\u7269\u5316\u8996\u5716\uff1a<\/p>\n<pre><code>REFRESH MATERIALIZED VIEW total_sales_view;<\/code><\/pre>\n<p>\u9019\u5c07\u66f4\u65b0\u7269\u5316\u8996\u5716\u4e2d\u7684\u6578\u64da\uff0c\u4f7f\u5176\u8207\u57fa\u790e\u8868\u4e2d\u7684\u6578\u64da\u4fdd\u6301\u4e00\u81f4\u3002<\/p>\n<h2 id=\"%e7%89%a9%e5%8c%96%e8%a6%96%e5%9c%96%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-anwoNNwjis\">\u7269\u5316\u8996\u5716\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li><strong>\u5b58\u5132\u7a7a\u9593\uff1a<\/strong>\u7269\u5316\u8996\u5716\u6703\u4f54\u7528\u984d\u5916\u7684\u5b58\u5132\u7a7a\u9593\uff0c\u56e0\u6b64\u5728\u5275\u5efa\u6642\u9700\u8981\u8003\u616e\u53ef\u7528\u7684\u8cc7\u6e90\u3002<\/li>\n<li><strong>\u66f4\u65b0\u5ef6\u9072\uff1a<\/strong>\u7531\u65bc\u7269\u5316\u8996\u5716\u4e0d\u6703\u81ea\u52d5\u66f4\u65b0\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u5ef6\u9072\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u983b\u7e41\u8b8a\u66f4\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<li><strong>\u6027\u80fd\u5f71\u97ff\uff1a<\/strong>\u5728\u5237\u65b0\u7269\u5316\u8996\u5716\u6642\uff0c\u53ef\u80fd\u6703\u5c0d\u7cfb\u7d71\u6027\u80fd\u7522\u751f\u5f71\u97ff\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u6578\u64da\u96c6\u4e0a\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-anwoNNwjis\">\u7e3d\u7d50<\/h2>\n<p>\u7269\u5316\u8996\u5716\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u67e5\u8a62\u7684\u6027\u80fd\u3002\u901a\u904e\u6b63\u78ba\u5730\u5275\u5efa\u548c\u7ba1\u7406\u7269\u5316\u8996\u5716\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u512a\u5316\u6578\u64da\u5eab\u7684\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002\u4e86\u89e3\u5982\u4f55\u5275\u5efa\u548c\u4f7f\u7528\u7269\u5316\u8996\u5716\u5c07\u6709\u52a9\u65bc\u60a8\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u505a\u51fa\u66f4\u660e\u667a\u7684\u6c7a\u7b56\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u652f\u6301\u6216\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5275\u5efa\u6578\u64da\u5eab\u7269\u5316\u8996\u5716\uff0c\u638c\u63e1\u6b65\u9a5f\u8207\u6280\u5de7\uff0c\u63d0\u5347\u67e5\u8a62\u6548\u7387\uff0c\u512a\u5316\u6578\u64da\u7ba1\u7406\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-173231","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173231","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=173231"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173231\/revisions"}],"predecessor-version":[{"id":173232,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173231\/revisions\/173232"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=173231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=173231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=173231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}