{"id":60349,"date":"2024-10-13T02:07:14","date_gmt":"2024-10-12T18:07:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60349\/"},"modified":"2024-10-13T02:07:14","modified_gmt":"2024-10-12T18:07:14","slug":"db2-%e4%b8%a6%e8%a1%8c%e7%89%88%e6%9c%ac%e4%b8%ad%e7%9a%84%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96%e7%99%bb%e5%b3%b0%e9%80%a0%e6%a5%b5%ef%bc%81","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60349\/","title":{"rendered":"DB2 \u4e26\u884c\u7248\u672c\u4e2d\u7684\u67e5\u8a62\u512a\u5316\u767b\u5cf0\u9020\u6975\uff01"},"content":{"rendered":"<h1 id=\"db2-%e4%b8%a6%e8%a1%8c%e7%89%88%e6%9c%ac%e4%b8%ad%e7%9a%84%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96%e7%99%bb%e5%b3%b0%e9%80%a0%e6%a5%b5%ef%bc%81-gjTtdkohOT\">DB2 \u4e26\u884c\u7248\u672c\u4e2d\u7684\u67e5\u8a62\u512a\u5316\u767b\u5cf0\u9020\u6975\uff01<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff08DBMS\uff09\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002IBM \u7684 DB2 \u4f5c\u70ba\u4e00\u6b3e\u5f37\u5927\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u512a\u5316\u67e5\u8a62\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u4e26\u884c\u7248\u672c\u4e2d\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e DB2 \u7684\u67e5\u8a62\u512a\u5316\u6280\u8853\uff0c\u4e26\u5206\u6790\u5176\u5728\u4e26\u884c\u8655\u7406\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"db2-%e7%9a%84%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96%e5%99%a8-gjTtdkohOT\">DB2 \u7684\u67e5\u8a62\u512a\u5316\u5668<\/h2>\n<p>DB2 \u7684\u67e5\u8a62\u512a\u5316\u5668\u662f\u5176\u6838\u5fc3\u7d44\u4ef6\u4e4b\u4e00\uff0c\u8ca0\u8cac\u751f\u6210\u9ad8\u6548\u7684\u57f7\u884c\u8a08\u5283\u3002\u67e5\u8a62\u512a\u5316\u5668\u901a\u904e\u5206\u6790 SQL \u67e5\u8a62\u7684\u7d50\u69cb\u3001\u6578\u64da\u7d71\u8a08\u4fe1\u606f\u4ee5\u53ca\u53ef\u7528\u7684\u7d22\u5f15\uff0c\u4f86\u9078\u64c7\u6700\u4f73\u7684\u57f7\u884c\u8def\u5f91\u3002\u9019\u4e00\u904e\u7a0b\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<ul>\n<li><strong>\u89e3\u6790\uff1a<\/strong>\u5c07 SQL \u67e5\u8a62\u8f49\u63db\u70ba\u5167\u90e8\u8868\u793a\u5f62\u5f0f\u3002<\/li>\n<li><strong>\u512a\u5316\uff1a<\/strong>\u751f\u6210\u591a\u500b\u57f7\u884c\u8a08\u5283\u4e26\u8a55\u4f30\u5176\u6210\u672c\u3002<\/li>\n<li><strong>\u57f7\u884c\uff1a<\/strong>\u9078\u64c7\u6210\u672c\u6700\u4f4e\u7684\u8a08\u5283\u4e26\u57f7\u884c\u67e5\u8a62\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%b8%a6%e8%a1%8c%e8%99%95%e7%90%86%e7%9a%84%e5%84%aa%e5%8b%a2-gjTtdkohOT\">\u4e26\u884c\u8655\u7406\u7684\u512a\u52e2<\/h2>\n<p>\u5728 DB2 \u7684\u4e26\u884c\u7248\u672c\u4e2d\uff0c\u67e5\u8a62\u512a\u5316\u5668\u80fd\u5920\u5229\u7528\u591a\u500b\u8655\u7406\u5668\u540c\u6642\u57f7\u884c\u67e5\u8a62\uff0c\u9019\u6a23\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6027\u80fd\u3002\u4e26\u884c\u8655\u7406\u7684\u4e3b\u8981\u512a\u52e2\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u63d0\u9ad8\u541e\u5410\u91cf\uff1a<\/strong>\u591a\u500b\u67e5\u8a62\u53ef\u4ee5\u540c\u6642\u57f7\u884c\uff0c\u5f9e\u800c\u63d0\u9ad8\u6574\u9ad4\u7cfb\u7d71\u7684\u541e\u5410\u91cf\u3002<\/li>\n<li><strong>\u7e2e\u77ed\u97ff\u61c9\u6642\u9593\uff1a<\/strong>\u901a\u904e\u5c07\u67e5\u8a62\u5206\u89e3\u70ba\u591a\u500b\u5b50\u4efb\u52d9\uff0c\u4e26\u884c\u8655\u7406\u53ef\u4ee5\u6e1b\u5c11\u67e5\u8a62\u7684\u97ff\u61c9\u6642\u9593\u3002<\/li>\n<li><strong>\u8cc7\u6e90\u5229\u7528\u7387\uff1a<\/strong>\u5145\u5206\u5229\u7528\u591a\u6838\u8655\u7406\u5668\u7684\u8a08\u7b97\u80fd\u529b\uff0c\u63d0\u5347\u8cc7\u6e90\u7684\u4f7f\u7528\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96%e6%8a%80%e8%a1%93-gjTtdkohOT\">\u67e5\u8a62\u512a\u5316\u6280\u8853<\/h2>\n<p>DB2 \u63d0\u4f9b\u4e86\u591a\u7a2e\u67e5\u8a62\u512a\u5316\u6280\u8853\uff0c\u4ee5\u652f\u6301\u4e26\u884c\u8655\u7406\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u95dc\u9375\u6280\u8853\uff1a<\/p>\n<h3 id=\"1-%e5%88%86%e5%8d%80%e8%a1%a8-gjTtdkohOT\">1. \u5206\u5340\u8868<\/h3>\n<p>\u5206\u5340\u8868\u5141\u8a31\u5c07\u6578\u64da\u5206\u6563\u5230\u591a\u500b\u7269\u7406\u4f4d\u7f6e\uff0c\u9019\u6a23\u53ef\u4ee5\u5728\u67e5\u8a62\u6642\u4e26\u884c\u8a2a\u554f\u4e0d\u540c\u7684\u5206\u5340\u3002\u9019\u5c0d\u65bc\u5927\u578b\u6578\u64da\u96c6\u7279\u5225\u6709\u6548\uff0c\u56e0\u70ba\u5b83\u53ef\u4ee5\u6e1b\u5c11\u6bcf\u500b\u67e5\u8a62\u7684\u6578\u64da\u91cf\u3002<\/p>\n<pre><code>CREATE TABLE sales (\n    id INT,\n    amount DECIMAL(10, 2),\n    region VARCHAR(50)\n) PARTITION BY RANGE (region) (\n    PARTITION p1 VALUES LESS THAN ('A'),\n    PARTITION p2 VALUES LESS THAN ('M'),\n    PARTITION p3 VALUES LESS THAN ('Z')\n);<\/code><\/pre>\n<h3 id=\"2-%e4%b8%a6%e8%a1%8c%e6%9f%a5%e8%a9%a2%e5%9f%b7%e8%a1%8c-gjTtdkohOT\">2. \u4e26\u884c\u67e5\u8a62\u57f7\u884c<\/h3>\n<p>DB2 \u652f\u6301\u4e26\u884c\u67e5\u8a62\u57f7\u884c\uff0c\u9019\u610f\u5473\u8457\u67e5\u8a62\u7684\u4e0d\u540c\u90e8\u5206\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u8655\u7406\u5668\u4e0a\u540c\u6642\u57f7\u884c\u3002\u9019\u6a23\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u7684\u6027\u80fd\u3002<\/p>\n<pre><code>SET CURRENT DEGREE = ANY; -- \u5141\u8a31 DB2 \u81ea\u52d5\u6c7a\u5b9a\u4e26\u884c\u5ea6\nSELECT * FROM sales WHERE region = 'East';<\/code><\/pre>\n<h3 id=\"3-%e7%b5%b1%e8%a8%88%e4%bf%a1%e6%81%af-gjTtdkohOT\">3. \u7d71\u8a08\u4fe1\u606f<\/h3>\n<p>\u6e96\u78ba\u7684\u7d71\u8a08\u4fe1\u606f\u5c0d\u65bc\u67e5\u8a62\u512a\u5316\u81f3\u95dc\u91cd\u8981\u3002DB2 \u5b9a\u671f\u6536\u96c6\u548c\u66f4\u65b0\u7d71\u8a08\u4fe1\u606f\uff0c\u4ee5\u5e6b\u52a9\u512a\u5316\u5668\u505a\u51fa\u66f4\u597d\u7684\u6c7a\u7b56\u3002<\/p>\n<pre><code>RUNSTATS ON TABLE sales WITH DISTRIBUTION AND DETAILED INDEXES ALL;<\/code><\/pre>\n<h2 id=\"%e7%b5%90%e8%ab%96-gjTtdkohOT\">\u7d50\u8ad6<\/h2>\n<p>DB2 \u7684\u67e5\u8a62\u512a\u5316\u6280\u8853\u5728\u4e26\u884c\u7248\u672c\u4e2d\u9054\u5230\u4e86\u767b\u5cf0\u9020\u6975\u7684\u6c34\u5e73\u3002\u901a\u904e\u5229\u7528\u5206\u5340\u8868\u3001\u4e26\u884c\u67e5\u8a62\u57f7\u884c\u548c\u6e96\u78ba\u7684\u7d71\u8a08\u4fe1\u606f\uff0cDB2 \u80fd\u5920\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u6eff\u8db3\u73fe\u4ee3\u4f01\u696d\u5c0d\u6578\u64da\u8655\u7406\u7684\u9700\u6c42\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u6301\u7e8c\u589e\u9577\uff0c\u9019\u4e9b\u6280\u8853\u5c07\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u696d\u52d9\u4e2d\u5be6\u65bd\u9019\u4e9b\u6280\u8853\u611f\u8208\u8da3\uff0c\u6216\u8005\u60f3\u4e86\u89e3\u66f4\u591a\u95dc\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u53ca\u5176\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u7684\u61c9\u7528\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22DB2\u4e26\u884c\u7248\u672c\u4e2d\u7684\u67e5\u8a62\u512a\u5316\u6280\u8853\uff0c\u63d0\u5347\u6027\u80fd\u8207\u6548\u7387\uff0c\u5be6\u73fe\u6578\u64da\u8655\u7406\u7684\u5dd4\u5cf0\u9ad4\u9a57\uff01<\/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-60349","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60349","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=60349"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60349\/revisions"}],"predecessor-version":[{"id":60350,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60349\/revisions\/60350"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60349"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60349"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60349"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}