{"id":60635,"date":"2024-10-13T04:31:17","date_gmt":"2024-10-12T20:31:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/60635\/"},"modified":"2024-10-13T04:31:18","modified_gmt":"2024-10-12T20:31:18","slug":"db2%e6%95%b8%e6%93%9a%e5%80%89%e5%ba%ab%e6%bb%bf%e8%b6%b3%e7%94%a8%e6%88%b6%e5%b0%8d%e6%88%b0%e7%95%a5%e6%a5%ad%e5%8b%99%e4%bf%a1%e6%81%af%e5%88%86%e6%9e%90%e7%9a%84%e8%a6%81%e6%b1%82","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/60635\/","title":{"rendered":"DB2\u6578\u64da\u5009\u5eab\u6eff\u8db3\u7528\u6236\u5c0d\u6230\u7565\u696d\u52d9\u4fe1\u606f\u5206\u6790\u7684\u8981\u6c42"},"content":{"rendered":"<h1 id=\"db2%e6%95%b8%e6%93%9a%e5%80%89%e5%ba%ab%e6%bb%bf%e8%b6%b3%e7%94%a8%e6%88%b6%e5%b0%8d%e6%88%b0%e7%95%a5%e6%a5%ad%e5%8b%99%e4%bf%a1%e6%81%af%e5%88%86%e6%9e%90%e7%9a%84%e8%a6%81%e6%b1%82-vQfpjUPWul\">DB2\u6578\u64da\u5009\u5eab\u6eff\u8db3\u7528\u6236\u5c0d\u6230\u7565\u696d\u52d9\u4fe1\u606f\u5206\u6790\u7684\u8981\u6c42<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u5546\u696d\u74b0\u5883\u4e2d\uff0c\u4f01\u696d\u9700\u8981\u6709\u6548\u7684\u6578\u64da\u7ba1\u7406\u548c\u5206\u6790\u5de5\u5177\u4f86\u652f\u6301\u5176\u6230\u7565\u6c7a\u7b56\u3002IBM\u7684DB2\u6578\u64da\u5009\u5eab\u4f5c\u70ba\u4e00\u7a2e\u5f37\u5927\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u80fd\u5920\u6eff\u8db3\u7528\u6236\u5c0d\u6230\u7565\u696d\u52d9\u4fe1\u606f\u5206\u6790\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0eDB2\u6578\u64da\u5009\u5eab\u7684\u7279\u9ede\u53ca\u5176\u5982\u4f55\u5e6b\u52a9\u4f01\u696d\u9032\u884c\u6df1\u5165\u7684\u6578\u64da\u5206\u6790\u3002<\/p>\n<h2 id=\"db2%e6%95%b8%e6%93%9a%e5%80%89%e5%ba%ab%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-vQfpjUPWul\">DB2\u6578\u64da\u5009\u5eab\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>DB2\u6578\u64da\u5009\u5eab\u662f\u4e00\u7a2e\u5c08\u9580\u8a2d\u8a08\u7528\u65bc\u652f\u6301\u5546\u696d\u667a\u80fd\u548c\u6578\u64da\u5206\u6790\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u3002\u5b83\u80fd\u5920\u6574\u5408\u4f86\u81ea\u4e0d\u540c\u4f86\u6e90\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u9ad8\u6548\u7684\u67e5\u8a62\u548c\u5831\u544a\u529f\u80fd\u3002DB2\u7684\u67b6\u69cb\u652f\u6301\u5927\u898f\u6a21\u6578\u64da\u5b58\u5132\u548c\u8655\u7406\uff0c\u4e26\u4e14\u5177\u5099\u9ad8\u53ef\u7528\u6027\u548c\u53ef\u64f4\u5c55\u6027\uff0c\u9019\u4f7f\u5f97\u5b83\u6210\u70ba\u4f01\u696d\u6578\u64da\u5206\u6790\u7684\u7406\u60f3\u9078\u64c7\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e6%95%b4%e5%90%88%e8%88%87%e6%b8%85%e6%b4%97-vQfpjUPWul\">\u6578\u64da\u6574\u5408\u8207\u6e05\u6d17<\/h2>\n<p>\u5728\u9032\u884c\u6578\u64da\u5206\u6790\u4e4b\u524d\uff0c\u6578\u64da\u7684\u6574\u5408\u548c\u6e05\u6d17\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002DB2\u6578\u64da\u5009\u5eab\u63d0\u4f9b\u4e86\u5f37\u5927\u7684ETL\uff08\u63d0\u53d6\u3001\u8f49\u63db\u3001\u52a0\u8f09\uff09\u5de5\u5177\uff0c\u5e6b\u52a9\u7528\u6236\u5f9e\u591a\u500b\u6578\u64da\u6e90\u4e2d\u63d0\u53d6\u6578\u64da\uff0c\u4e26\u9032\u884c\u5fc5\u8981\u7684\u8f49\u63db\u548c\u6e05\u6d17\u3002\u9019\u4e00\u904e\u7a0b\u4e0d\u50c5\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u8cea\u91cf\uff0c\u9084\u78ba\u4fdd\u4e86\u5206\u6790\u7d50\u679c\u7684\u6e96\u78ba\u6027\u3002<\/p>\n<h3 id=\"%e6%95%b8%e6%93%9a%e6%95%b4%e5%90%88%e7%9a%84%e7%a4%ba%e4%be%8b-vQfpjUPWul\">\u6578\u64da\u6574\u5408\u7684\u793a\u4f8b<\/h3>\n<pre><code>\n-- \u63d0\u53d6\u6578\u64da\u793a\u4f8b\nSELECT * FROM sales_data\nWHERE sale_date BETWEEN '2023-01-01' AND '2023-12-31';\n<\/code><\/pre>\n<p>\u4e0a\u8ff0\u67e5\u8a62\u5f9e\u92b7\u552e\u6578\u64da\u8868\u4e2d\u63d0\u53d62023\u5e74\u7684\u6240\u6709\u92b7\u552e\u8a18\u9304\uff0c\u70ba\u5f8c\u7e8c\u7684\u6578\u64da\u5206\u6790\u63d0\u4f9b\u4e86\u57fa\u790e\u3002<\/p>\n<h2 id=\"%e9%ab%98%e6%95%88%e7%9a%84%e6%9f%a5%e8%a9%a2%e6%80%a7%e8%83%bd-vQfpjUPWul\">\u9ad8\u6548\u7684\u67e5\u8a62\u6027\u80fd<\/h2>\n<p>DB2\u6578\u64da\u5009\u5eab\u7684\u67e5\u8a62\u6027\u80fd\u512a\u8d8a\uff0c\u80fd\u5920\u5feb\u901f\u8655\u7406\u5927\u91cf\u6578\u64da\u3002\u5176\u5167\u5efa\u7684\u67e5\u8a62\u512a\u5316\u5668\u80fd\u5920\u81ea\u52d5\u9078\u64c7\u6700\u4f73\u7684\u67e5\u8a62\u57f7\u884c\u8a08\u5283\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002\u9019\u5c0d\u65bc\u9700\u8981\u5373\u6642\u6578\u64da\u5206\u6790\u7684\u4f01\u696d\u4f86\u8aaa\u5c24\u70ba\u91cd\u8981\u3002<\/p>\n<h3 id=\"%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96%e7%9a%84%e7%a4%ba%e4%be%8b-vQfpjUPWul\">\u67e5\u8a62\u512a\u5316\u7684\u793a\u4f8b<\/h3>\n<pre><code>\n-- \u4f7f\u7528\u7d22\u5f15\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\nCREATE INDEX idx_sale_date ON sales_data(sale_date);\n<\/code><\/pre>\n<p>\u901a\u904e\u5275\u5efa\u7d22\u5f15\uff0cDB2\u80fd\u5920\u66f4\u5feb\u5730\u6aa2\u7d22\u7279\u5b9a\u65e5\u671f\u7bc4\u570d\u5167\u7684\u92b7\u552e\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u67e5\u8a62\u7684\u6548\u7387\u3002<\/p>\n<h2 id=\"%e6%94%af%e6%8c%81%e5%a4%9a%e7%b6%ad%e5%88%86%e6%9e%90-vQfpjUPWul\">\u652f\u6301\u591a\u7dad\u5206\u6790<\/h2>\n<p>DB2\u6578\u64da\u5009\u5eab\u652f\u6301\u591a\u7dad\u6578\u64da\u6a21\u578b\uff0c\u9019\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u5f9e\u4e0d\u540c\u7684\u89d2\u5ea6\u5206\u6790\u6578\u64da\u3002\u7528\u6236\u53ef\u4ee5\u6839\u64da\u6642\u9593\u3001\u5730\u5340\u3001\u7522\u54c1\u7b49\u7dad\u5ea6\u9032\u884c\u6df1\u5165\u5206\u6790\uff0c\u5f9e\u800c\u7372\u5f97\u66f4\u5168\u9762\u7684\u696d\u52d9\u6d1e\u5bdf\u3002<\/p>\n<h3 id=\"%e5%a4%9a%e7%b6%ad%e5%88%86%e6%9e%90%e7%9a%84%e7%a4%ba%e4%be%8b-vQfpjUPWul\">\u591a\u7dad\u5206\u6790\u7684\u793a\u4f8b<\/h3>\n<pre><code>\n-- \u7372\u53d6\u6309\u5730\u5340\u548c\u7522\u54c1\u5206\u985e\u7684\u92b7\u552e\u7e3d\u984d\nSELECT region, product, SUM(sales_amount) AS total_sales\nFROM sales_data\nGROUP BY region, product;\n<\/code><\/pre>\n<p>\u9019\u500b\u67e5\u8a62\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u4e86\u89e3\u4e0d\u540c\u5730\u5340\u548c\u7522\u54c1\u7684\u92b7\u552e\u8868\u73fe\uff0c\u5f9e\u800c\u5236\u5b9a\u76f8\u61c9\u7684\u5e02\u5834\u7b56\u7565\u3002<\/p>\n<h2 id=\"%e5%ae%89%e5%85%a8%e6%80%a7%e8%88%87%e5%90%88%e8%a6%8f%e6%80%a7-vQfpjUPWul\">\u5b89\u5168\u6027\u8207\u5408\u898f\u6027<\/h2>\n<p>\u5728\u6578\u64da\u5206\u6790\u904e\u7a0b\u4e2d\uff0c\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u5408\u898f\u6027\u662f\u4f01\u696d\u5fc5\u9808\u8003\u616e\u7684\u91cd\u8981\u56e0\u7d20\u3002DB2\u6578\u64da\u5009\u5eab\u63d0\u4f9b\u4e86\u591a\u5c64\u6b21\u7684\u5b89\u5168\u6a5f\u5236\uff0c\u5305\u62ec\u7528\u6236\u8eab\u4efd\u9a57\u8b49\u3001\u6578\u64da\u52a0\u5bc6\u548c\u8a2a\u554f\u63a7\u5236\uff0c\u78ba\u4fdd\u6578\u64da\u5728\u5b58\u5132\u548c\u50b3\u8f38\u904e\u7a0b\u4e2d\u7684\u5b89\u5168\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-vQfpjUPWul\">\u7d50\u8ad6<\/h2>\n<p>\u7e3d\u7d50\u4f86\u8aaa\uff0cDB2\u6578\u64da\u5009\u5eab\u4ee5\u5176\u5f37\u5927\u7684\u6578\u64da\u6574\u5408\u3001\u67e5\u8a62\u6027\u80fd\u3001\u591a\u7dad\u5206\u6790\u80fd\u529b\u4ee5\u53ca\u5b89\u5168\u6027\uff0c\u6eff\u8db3\u4e86\u7528\u6236\u5c0d\u6230\u7565\u696d\u52d9\u4fe1\u606f\u5206\u6790\u7684\u9700\u6c42\u3002\u96a8\u8457\u4f01\u696d\u5c0d\u6578\u64da\u5206\u6790\u9700\u6c42\u7684\u65e5\u76ca\u589e\u9577\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5009\u5eab\u89e3\u6c7a\u65b9\u6848\u5c07\u6210\u70ba\u63d0\u5347\u7af6\u722d\u529b\u7684\u95dc\u9375\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u6578\u64da\u7ba1\u7406\u548c\u5206\u6790\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u60a8\u53ef\u4ee5\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\uff0c\u63a2\u7d22\u6211\u5011\u7684<a href=\"https:\/\/server.hk\">VPS<\/a>\u548c\u5176\u4ed6\u670d\u52d9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DB2\u6578\u64da\u5009\u5eab\u63d0\u4f9b\u9ad8\u6548\u7684\u6230\u7565\u696d\u52d9\u4fe1\u606f\u5206\u6790\uff0c\u6eff\u8db3\u7528\u6236\u9700\u6c42\uff0c\u52a9\u529b\u6c7a\u7b56\u652f\u6301\u8207\u696d\u52d9\u589e\u9577\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-60635","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60635","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=60635"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60635\/revisions"}],"predecessor-version":[{"id":60636,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/60635\/revisions\/60636"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=60635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=60635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=60635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}