{"id":60359,"date":"2024-10-13T02:12:15","date_gmt":"2024-10-12T18:12:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60359\/"},"modified":"2024-10-13T02:12:15","modified_gmt":"2024-10-12T18:12:15","slug":"db2-%e8%81%9a%e9%9b%86%e7%9b%ae%e6%a8%99%e8%a1%a8%e7%9a%84%e9%97%9c%e9%8d%b5%e4%bd%9c%e7%94%a8%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60359\/","title":{"rendered":"DB2 \u805a\u96c6\u76ee\u6a19\u8868\u7684\u95dc\u9375\u4f5c\u7528\u5206\u6790"},"content":{"rendered":"<h1 id=\"db2-%e8%81%9a%e9%9b%86%e7%9b%ae%e6%a8%99%e8%a1%a8%e7%9a%84%e9%97%9c%e9%8d%b5%e4%bd%9c%e7%94%a8%e5%88%86%e6%9e%90-tZVSJiqnJR\">DB2 \u805a\u96c6\u76ee\u6a19\u8868\u7684\u95dc\u9375\u4f5c\u7528\u5206\u6790<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u5546\u696d\u74b0\u5883\u4e2d\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u7684\u9078\u64c7\u548c\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002IBM \u7684 DB2 \u6578\u64da\u5eab\u7cfb\u7d71\u4ee5\u5176\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u80fd\u529b\u548c\u9748\u6d3b\u7684\u6578\u64da\u7ba1\u7406\u529f\u80fd\u800c\u805e\u540d\u3002\u5728 DB2 \u4e2d\uff0c\u805a\u96c6\u76ee\u6a19\u8868\uff08Materialized Query Table, MQT\uff09\u662f\u4e00\u500b\u95dc\u9375\u7684\u529f\u80fd\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u6578\u64da\u8655\u7406\u6548\u7387\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e DB2 \u805a\u96c6\u76ee\u6a19\u8868\u7684\u4f5c\u7528\u53ca\u5176\u5728\u6578\u64da\u7ba1\u7406\u4e2d\u7684\u91cd\u8981\u6027\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%81%9a%e9%9b%86%e7%9b%ae%e6%a8%99%e8%a1%a8%ef%bc%9f-tZVSJiqnJR\">\u4ec0\u9ebc\u662f\u805a\u96c6\u76ee\u6a19\u8868\uff1f<\/h2>\n<p>\u805a\u96c6\u76ee\u6a19\u8868\u662f\u4e00\u7a2e\u7279\u6b8a\u7684\u6578\u64da\u5eab\u5c0d\u8c61\uff0c\u5b83\u5b58\u5132\u67e5\u8a62\u7684\u7d50\u679c\u96c6\uff0c\u4e26\u4e14\u53ef\u4ee5\u5b9a\u671f\u66f4\u65b0\u3002\u9019\u610f\u5473\u8457\u7528\u6236\u53ef\u4ee5\u5728\u4e0d\u6bcf\u6b21\u90fd\u57f7\u884c\u539f\u59cb\u67e5\u8a62\u7684\u60c5\u6cc1\u4e0b\uff0c\u5feb\u901f\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u3002\u805a\u96c6\u76ee\u6a19\u8868\u7684\u4e3b\u8981\u76ee\u7684\u662f\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u5927\u91cf\u6578\u64da\u6642\u3002<\/p>\n<h2 id=\"%e8%81%9a%e9%9b%86%e7%9b%ae%e6%a8%99%e8%a1%a8%e7%9a%84%e5%84%aa%e5%8b%a2-tZVSJiqnJR\">\u805a\u96c6\u76ee\u6a19\u8868\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff1a<\/strong>\u805a\u96c6\u76ee\u6a19\u8868\u53ef\u4ee5\u986f\u8457\u6e1b\u5c11\u67e5\u8a62\u7684\u57f7\u884c\u6642\u9593\uff0c\u56e0\u70ba\u5b83\u5011\u5b58\u5132\u4e86\u9810\u8a08\u7684\u67e5\u8a62\u7d50\u679c\uff0c\u907f\u514d\u4e86\u91cd\u8907\u8a08\u7b97\u3002<\/li>\n<li><strong>\u6e1b\u5c11\u7cfb\u7d71\u8ca0\u64d4\uff1a<\/strong>\u901a\u904e\u4f7f\u7528\u805a\u96c6\u76ee\u6a19\u8868\uff0c\u7cfb\u7d71\u53ef\u4ee5\u6e1b\u5c11\u5c0d\u57fa\u790e\u6578\u64da\u8868\u7684\u76f4\u63a5\u67e5\u8a62\uff0c\u5f9e\u800c\u964d\u4f4e\u4e86\u7cfb\u7d71\u7684\u8ca0\u64d4\u3002<\/li>\n<li><strong>\u9748\u6d3b\u7684\u6578\u64da\u66f4\u65b0\uff1a<\/strong>\u805a\u96c6\u76ee\u6a19\u8868\u53ef\u4ee5\u6839\u64da\u9700\u8981\u9032\u884c\u66f4\u65b0\uff0c\u9019\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u5728\u4fdd\u6301\u6578\u64da\u6e96\u78ba\u6027\u7684\u540c\u6642\uff0c\u7372\u5f97\u6700\u65b0\u7684\u67e5\u8a62\u7d50\u679c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%89%b5%e5%bb%ba%e8%81%9a%e9%9b%86%e7%9b%ae%e6%a8%99%e8%a1%a8-tZVSJiqnJR\">\u5982\u4f55\u5275\u5efa\u805a\u96c6\u76ee\u6a19\u8868<\/h2>\n<p>\u5728 DB2 \u4e2d\uff0c\u5275\u5efa\u805a\u96c6\u76ee\u6a19\u8868\u7684\u8a9e\u6cd5\u76f8\u5c0d\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE MATERIALIZED QUERY TABLE sales_summary AS\nSELECT product_id, SUM(sales_amount) AS total_sales\nFROM sales\nGROUP BY product_id\nWITH DATA;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>sales_summary<\/code> \u7684\u805a\u96c6\u76ee\u6a19\u8868\uff0c\u8a72\u8868\u5b58\u5132\u4e86\u6bcf\u500b\u7522\u54c1\u7684\u92b7\u552e\u7e3d\u984d\u3002\u4f7f\u7528 <code>WITH DATA<\/code> \u53c3\u6578\u8868\u793a\u5728\u5275\u5efa\u8868\u6642\u7acb\u5373\u586b\u5145\u6578\u64da\u3002<\/p>\n<h2 id=\"%e8%81%9a%e9%9b%86%e7%9b%ae%e6%a8%99%e8%a1%a8%e7%9a%84%e6%9b%b4%e6%96%b0%e7%ad%96%e7%95%a5-tZVSJiqnJR\">\u805a\u96c6\u76ee\u6a19\u8868\u7684\u66f4\u65b0\u7b56\u7565<\/h2>\n<p>\u805a\u96c6\u76ee\u6a19\u8868\u7684\u6578\u64da\u9700\u8981\u5b9a\u671f\u66f4\u65b0\uff0c\u4ee5\u78ba\u4fdd\u5176\u6e96\u78ba\u6027\u3002DB2 \u63d0\u4f9b\u4e86\u591a\u7a2e\u66f4\u65b0\u7b56\u7565\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u5b9a\u671f\u66f4\u65b0\uff1a<\/strong>\u53ef\u4ee5\u8a2d\u7f6e\u5b9a\u6642\u4efb\u52d9\uff0c\u81ea\u52d5\u66f4\u65b0\u805a\u96c6\u76ee\u6a19\u8868\u3002<\/li>\n<li><strong>\u4e8b\u4ef6\u9a45\u52d5\u66f4\u65b0\uff1a<\/strong>\u7576\u57fa\u790e\u6578\u64da\u8868\u767c\u751f\u8b8a\u5316\u6642\uff0c\u81ea\u52d5\u89f8\u767c\u805a\u96c6\u76ee\u6a19\u8868\u7684\u66f4\u65b0\u3002<\/li>\n<li><strong>\u624b\u52d5\u66f4\u65b0\uff1a<\/strong>\u7528\u6236\u53ef\u4ee5\u6839\u64da\u9700\u8981\u624b\u52d5\u57f7\u884c\u66f4\u65b0\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%81%9a%e9%9b%86%e7%9b%ae%e6%a8%99%e8%a1%a8%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-tZVSJiqnJR\">\u805a\u96c6\u76ee\u6a19\u8868\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>\u805a\u96c6\u76ee\u6a19\u8868\u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u80fd\u767c\u63ee\u91cd\u8981\u4f5c\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n<ul>\n<li><strong>\u5831\u544a\u751f\u6210\uff1a<\/strong>\u5728\u751f\u6210\u5831\u544a\u6642\uff0c\u805a\u96c6\u76ee\u6a19\u8868\u53ef\u4ee5\u5feb\u901f\u63d0\u4f9b\u6240\u9700\u7684\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u5831\u544a\u7684\u751f\u6210\u901f\u5ea6\u3002<\/li>\n<li><strong>\u6578\u64da\u5206\u6790\uff1a<\/strong>\u5728\u9032\u884c\u6578\u64da\u5206\u6790\u6642\uff0c\u805a\u96c6\u76ee\u6a19\u8868\u80fd\u5920\u63d0\u4f9b\u5373\u6642\u7684\u6578\u64da\u652f\u6301\uff0c\u5e6b\u52a9\u5206\u6790\u5e2b\u505a\u51fa\u66f4\u5feb\u7684\u6c7a\u7b56\u3002<\/li>\n<li><strong>\u696d\u52d9\u667a\u80fd\uff1a<\/strong>\u5728\u696d\u52d9\u667a\u80fd\u61c9\u7528\u4e2d\uff0c\u805a\u96c6\u76ee\u6a19\u8868\u53ef\u4ee5\u4f5c\u70ba\u6578\u64da\u6e90\uff0c\u652f\u6301\u5404\u7a2e\u5206\u6790\u548c\u53ef\u8996\u5316\u5de5\u5177\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-tZVSJiqnJR\">\u7d50\u8ad6<\/h2>\n<p>DB2 \u7684\u805a\u96c6\u76ee\u6a19\u8868\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u548c\u6578\u64da\u8655\u7406\u6548\u7387\u3002\u901a\u904e\u5408\u7406\u7684\u8a2d\u8a08\u548c\u4f7f\u7528\uff0c\u805a\u96c6\u76ee\u6a19\u8868\u53ef\u4ee5\u5e6b\u52a9\u4f01\u696d\u66f4\u597d\u5730\u7ba1\u7406\u548c\u5229\u7528\u6578\u64da\uff0c\u5f9e\u800c\u5728\u7af6\u722d\u4e2d\u7372\u5f97\u512a\u52e2\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u4e86\u89e3\u548c\u61c9\u7528\u805a\u96c6\u76ee\u6a19\u8868\u7684\u529f\u80fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u548c\u6578\u64da\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5206\u6790DB2\u805a\u96c6\u76ee\u6a19\u8868\u7684\u95dc\u9375\u4f5c\u7528\uff0c\u63a2\u8a0e\u5176\u5728\u6578\u64da\u7ba1\u7406\u548c\u6027\u80fd\u512a\u5316\u4e2d\u7684\u91cd\u8981\u6027\u8207\u61c9\u7528\u3002<\/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-60359","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60359","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=60359"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60359\/revisions"}],"predecessor-version":[{"id":60360,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60359\/revisions\/60360"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60359"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60359"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60359"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}