{"id":60975,"date":"2024-10-13T07:23:13","date_gmt":"2024-10-12T23:23:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60975\/"},"modified":"2024-10-13T07:23:13","modified_gmt":"2024-10-12T23:23:13","slug":"db2%e4%b8%adolap%e5%87%bd%e6%95%b8%e7%9a%84%e7%a4%ba%e4%be%8b%e5%88%86%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60975\/","title":{"rendered":"DB2\u4e2dOLAP\u51fd\u6578\u7684\u793a\u4f8b\u5206\u6790"},"content":{"rendered":"<h1 id=\"db2%e4%b8%adolap%e5%87%bd%e6%95%b8%e7%9a%84%e7%a4%ba%e4%be%8b%e5%88%86%e6%9e%90-ckwkWArBLS\">DB2\u4e2dOLAP\u51fd\u6578\u7684\u793a\u4f8b\u5206\u6790<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0cOLAP\uff08\u806f\u6a5f\u5206\u6790\u8655\u7406\uff09\u51fd\u6578\u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u9032\u884c\u8907\u96dc\u7684\u6578\u64da\u5206\u6790\u3002IBM\u7684DB2\u6578\u64da\u5eab\u7cfb\u7d71\u63d0\u4f9b\u4e86\u591a\u7a2eOLAP\u51fd\u6578\uff0c\u9019\u4e9b\u51fd\u6578\u80fd\u5920\u5728\u67e5\u8a62\u4e2d\u9032\u884c\u9ad8\u6548\u7684\u6578\u64da\u805a\u5408\u548c\u5206\u6790\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eDB2\u4e2d\u7684OLAP\u51fd\u6578\uff0c\u4e26\u901a\u904e\u793a\u4f8b\u4f86\u5206\u6790\u5176\u61c9\u7528\u3002<\/p>\n<h2 id=\"olap%e5%87%bd%e6%95%b8%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-ckwkWArBLS\">OLAP\u51fd\u6578\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>OLAP\u51fd\u6578\u4e3b\u8981\u7528\u65bc\u5206\u6790\u6578\u64da\u96c6\u4e2d\u7684\u8da8\u52e2\u548c\u6a21\u5f0f\u3002\u9019\u4e9b\u51fd\u6578\u901a\u5e38\u8207\u7a97\u53e3\u51fd\u6578\u7d50\u5408\u4f7f\u7528\uff0c\u5141\u8a31\u7528\u6236\u5728\u67e5\u8a62\u7d50\u679c\u4e2d\u9032\u884c\u5206\u7d44\u548c\u6392\u5e8f\u3002DB2\u4e2d\u7684OLAP\u51fd\u6578\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>RANK()<\/code>\uff1a\u70ba\u6bcf\u4e00\u884c\u5206\u914d\u4e00\u500b\u6392\u540d\uff0c\u6839\u64da\u6307\u5b9a\u7684\u6392\u5e8f\u689d\u4ef6\u3002<\/li>\n<li><code>DENSE_RANK()<\/code>\uff1a\u985e\u4f3c\u65bc<code>RANK()<\/code>\uff0c\u4f46\u4e0d\u6703\u8df3\u904e\u6392\u540d\u3002<\/li>\n<li><code>ROW_NUMBER()<\/code>\uff1a\u70ba\u6bcf\u4e00\u884c\u5206\u914d\u4e00\u500b\u552f\u4e00\u7684\u5e8f\u865f\u3002<\/li>\n<li><code>NTILE(n)<\/code>\uff1a\u5c07\u7d50\u679c\u96c6\u5206\u6210n\u500b\u76f8\u7b49\u7684\u90e8\u5206\uff0c\u4e26\u70ba\u6bcf\u4e00\u90e8\u5206\u5206\u914d\u4e00\u500b\u6574\u6578\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%a4%ba%e4%be%8b%e5%88%86%e6%9e%90-ckwkWArBLS\">\u793a\u4f8b\u5206\u6790<\/h2>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528DB2 OLAP\u51fd\u6578\u7684\u793a\u4f8b\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>sales<\/code>\u7684\u8868\uff0c\u8a72\u8868\u5305\u542b\u4ee5\u4e0b\u5b57\u6bb5\uff1a<\/p>\n<ul>\n<li><code>id<\/code>\uff1a\u92b7\u552e\u8a18\u9304\u7684\u552f\u4e00\u6a19\u8b58\u7b26<\/li>\n<li><code>product<\/code>\uff1a\u7522\u54c1\u540d\u7a31<\/li>\n<li><code>amount<\/code>\uff1a\u92b7\u552e\u91d1\u984d<\/li>\n<li><code>sale_date<\/code>\uff1a\u92b7\u552e\u65e5\u671f<\/li>\n<\/ul>\n<p>\u6211\u5011\u5e0c\u671b\u6839\u64da\u92b7\u552e\u91d1\u984d\u5c0d\u7522\u54c1\u9032\u884c\u6392\u540d\uff0c\u4e26\u986f\u793a\u6bcf\u500b\u7522\u54c1\u7684\u92b7\u552e\u91d1\u984d\u53ca\u5176\u6392\u540d\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\uff1a<\/p>\n<pre><code>\nSELECT \n    product,\n    amount,\n    RANK() OVER (ORDER BY amount DESC) AS sales_rank\nFROM \n    sales;\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c<code>RANK()<\/code>\u51fd\u6578\u6839\u64da<code>amount<\/code>\u5b57\u6bb5\u7684\u503c\u5c0d\u7522\u54c1\u9032\u884c\u6392\u540d\u3002\u7d50\u679c\u5c07\u986f\u793a\u6bcf\u500b\u7522\u54c1\u7684\u92b7\u552e\u91d1\u984d\u53ca\u5176\u5728\u6240\u6709\u7522\u54c1\u4e2d\u7684\u6392\u540d\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8dense_rank%e5%87%bd%e6%95%b8-ckwkWArBLS\">\u4f7f\u7528DENSE_RANK()\u51fd\u6578<\/h3>\n<p>\u5982\u679c\u6211\u5011\u5e0c\u671b\u5728\u6392\u540d\u4e2d\u4e0d\u8df3\u904e\u4efb\u4f55\u6578\u5b57\uff0c\u53ef\u4ee5\u4f7f\u7528<code>DENSE_RANK()<\/code>\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u76f8\u61c9\u7684SQL\u67e5\u8a62\uff1a<\/p>\n<pre><code>\nSELECT \n    product,\n    amount,\n    DENSE_RANK() OVER (ORDER BY amount DESC) AS sales_dense_rank\nFROM \n    sales;\n<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u7576\u591a\u500b\u7522\u54c1\u7684\u92b7\u552e\u91d1\u984d\u76f8\u540c\u6642\uff0c\u5b83\u5011\u5c07\u7372\u5f97\u76f8\u540c\u7684\u6392\u540d\uff0c\u800c\u4e0d\u6703\u8df3\u904e\u5f8c\u7e8c\u7684\u6392\u540d\u6578\u5b57\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8ntile%e5%87%bd%e6%95%b8-ckwkWArBLS\">\u4f7f\u7528NTILE()\u51fd\u6578<\/h3>\n<p>\u5982\u679c\u6211\u5011\u60f3\u5c07\u92b7\u552e\u6578\u64da\u5206\u6210\u56db\u500b\u90e8\u5206\uff0c\u53ef\u4ee5\u4f7f\u7528<code>NTILE(4)<\/code>\u51fd\u6578\u3002\u4ee5\u4e0b\u662f\u793a\u4f8b\u67e5\u8a62\uff1a<\/p>\n<pre><code>\nSELECT \n    product,\n    amount,\n    NTILE(4) OVER (ORDER BY amount DESC) AS sales_quartile\nFROM \n    sales;\n<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u5c07\u6839\u64da\u92b7\u552e\u91d1\u984d\u5c07\u7522\u54c1\u5206\u6210\u56db\u500b\u90e8\u5206\uff0c\u4e26\u70ba\u6bcf\u500b\u90e8\u5206\u5206\u914d\u4e00\u500b\u6574\u6578\u503c\uff0c\u9019\u6a23\u7528\u6236\u53ef\u4ee5\u8f15\u9b06\u8b58\u5225\u51fa\u54ea\u4e9b\u7522\u54c1\u7684\u92b7\u552e\u8868\u73fe\u8f03\u597d\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-ckwkWArBLS\">\u7d50\u8ad6<\/h2>\n<p>DB2\u4e2d\u7684OLAP\u51fd\u6578\u70ba\u6578\u64da\u5206\u6790\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u652f\u6301\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u7372\u53d6\u6709\u50f9\u503c\u7684\u898b\u89e3\u3002\u901a\u904e\u4f7f\u7528\u9019\u4e9b\u51fd\u6578\uff0c\u6578\u64da\u5206\u6790\u5e2b\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u8655\u7406\u548c\u5206\u6790\u5927\u91cf\u6578\u64da\uff0c\u5f9e\u800c\u505a\u51fa\u66f4\u660e\u667a\u7684\u5546\u696d\u6c7a\u7b56\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728\u60a8\u7684\u696d\u52d9\u4e2d\u5be6\u65bd\u9019\u4e9b\u6280\u8853\u6709\u8208\u8da3\uff0c\u6216\u8005\u9700\u8981\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8003\u616e\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u6578\u64da\u5206\u6790\u63d0\u4f9b\u7a69\u5b9a\u7684\u57fa\u790e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22DB2\u4e2dOLAP\u51fd\u6570\u7684\u793a\u4f8b\u5206\u6790\uff0c\u4e86\u89e3\u5982\u4f55\u5229\u7528\u8fd9\u4e9b\u51fd\u6570\u8fdb\u884c\u590d\u6742\u6570\u636e\u5206\u6790\u548c\u62a5\u8868\u751f\u6210\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-60975","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60975","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=60975"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60975\/revisions"}],"predecessor-version":[{"id":60976,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60975\/revisions\/60976"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60975"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60975"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60975"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}