{"id":183910,"date":"2024-11-10T08:45:15","date_gmt":"2024-11-10T00:45:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183910\/"},"modified":"2024-11-10T08:45:16","modified_gmt":"2024-11-10T00:45:16","slug":"%e4%bd%bf%e7%94%a8oracle%e8%81%9a%e5%90%88%e5%87%bd%e6%95%b8%e9%80%b2%e8%a1%8c%e9%ab%98%e6%95%88%e6%99%82%e9%96%93%e6%9f%a5%e8%a9%a2-oracle%e8%b7%9f%e8%81%9a%e6%99%82%e9%96%93%e6%9f%a5%e8%a9%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183910\/","title":{"rendered":"\u4f7f\u7528Oracle\u805a\u5408\u51fd\u6578\u9032\u884c\u9ad8\u6548\u6642\u9593\u67e5\u8a62 (oracle\u8ddf\u805a\u6642\u9593\u67e5\u8a62\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8oracle%e8%81%9a%e5%90%88%e5%87%bd%e6%95%b8%e9%80%b2%e8%a1%8c%e9%ab%98%e6%95%88%e6%99%82%e9%96%93%e6%9f%a5%e8%a9%a2-vjPVdMXfDD\">\u4f7f\u7528Oracle\u805a\u5408\u51fd\u6578\u9032\u884c\u9ad8\u6548\u6642\u9593\u67e5\u8a62<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u6642\u9593\u67e5\u8a62\u662f\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u5206\u6790\u548c\u5831\u544a\u7684\u60c5\u5883\u4e0b\u3002Oracle\u6578\u64da\u5eab\u63d0\u4f9b\u4e86\u591a\u7a2e\u805a\u5408\u51fd\u6578\uff0c\u9019\u4e9b\u51fd\u6578\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u9ad8\u6548\u5730\u9032\u884c\u6642\u9593\u67e5\u8a62\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528Oracle\u7684\u805a\u5408\u51fd\u6578\u4f86\u9032\u884c\u9ad8\u6548\u7684\u6642\u9593\u67e5\u8a62\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u7bc4\u4f8b\u548c\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%81%9a%e5%90%88%e5%87%bd%e6%95%b8%ef%bc%9f-vjPVdMXfDD\">\u4ec0\u9ebc\u662f\u805a\u5408\u51fd\u6578\uff1f<\/h2>\n<p>\u805a\u5408\u51fd\u6578\u662f\u7528\u65bc\u8a08\u7b97\u4e00\u7d44\u503c\u4e26\u8fd4\u56de\u55ae\u4e00\u503c\u7684\u51fd\u6578\u3002\u5728Oracle\u4e2d\uff0c\u5e38\u898b\u7684\u805a\u5408\u51fd\u6578\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>SUM()<\/code>\uff1a\u8a08\u7b97\u6578\u503c\u7684\u7e3d\u548c\u3002<\/li>\n<li><code>AVG()<\/code>\uff1a\u8a08\u7b97\u6578\u503c\u7684\u5e73\u5747\u503c\u3002<\/li>\n<li><code>COUNT()<\/code>\uff1a\u8a08\u7b97\u884c\u6578\u3002<\/li>\n<li><code>MIN()<\/code>\uff1a\u627e\u51fa\u6700\u5c0f\u503c\u3002<\/li>\n<li><code>MAX()<\/code>\uff1a\u627e\u51fa\u6700\u5927\u503c\u3002<\/li>\n<\/ul>\n<p>\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u8207\u6642\u9593\u6233\u8a18\uff08timestamp\uff09\u6216\u65e5\u671f\uff08date\uff09\u985e\u578b\u7684\u6578\u64da\u7d50\u5408\u4f7f\u7528\uff0c\u4ee5\u4fbf\u9032\u884c\u6642\u9593\u7bc4\u570d\u5167\u7684\u6578\u64da\u5206\u6790\u3002<\/p>\n<h2 id=\"%e6%99%82%e9%96%93%e6%9f%a5%e8%a9%a2%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-vjPVdMXfDD\">\u6642\u9593\u67e5\u8a62\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728\u9032\u884c\u6642\u9593\u67e5\u8a62\u6642\uff0c\u901a\u5e38\u9700\u8981\u6839\u64da\u7279\u5b9a\u7684\u6642\u9593\u7bc4\u570d\u4f86\u904e\u6ffe\u6578\u64da\u3002\u9019\u53ef\u4ee5\u901a\u904e\u4f7f\u7528\u65e5\u671f\u51fd\u6578\u548c\u805a\u5408\u51fd\u6578\u4f86\u5be6\u73fe\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u92b7\u552e\u8a18\u9304\u8868\uff0c\u5305\u542b\u92b7\u552e\u65e5\u671f\u548c\u92b7\u552e\u91d1\u984d\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u8a08\u7b97\u67d0\u500b\u6708\u4efd\u7684\u7e3d\u92b7\u552e\u984d\uff1a<\/p>\n<pre><code>\nSELECT SUM(sales_amount) AS total_sales\nFROM sales\nWHERE sales_date BETWEEN TO_DATE('2023-01-01', 'YYYY-MM-DD') \n                      AND TO_DATE('2023-01-31', 'YYYY-MM-DD');\n<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86<code>SUM()<\/code>\u51fd\u6578\u4f86\u8a08\u7b97\u57282023\u5e741\u6708\u5167\u7684\u7e3d\u92b7\u552e\u984d\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8group-by%e9%80%b2%e8%a1%8c%e5%88%86%e7%b5%84%e6%9f%a5%e8%a9%a2-vjPVdMXfDD\">\u4f7f\u7528GROUP BY\u9032\u884c\u5206\u7d44\u67e5\u8a62<\/h2>\n<p>\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u6211\u5011\u9700\u8981\u6839\u64da\u6642\u9593\u9032\u884c\u5206\u7d44\u67e5\u8a62\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u8a08\u7b97\u6bcf\u500b\u6708\u7684\u92b7\u552e\u7e3d\u984d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>GROUP BY<\/code>\u5b50\u53e5\uff1a<\/p>\n<pre><code>\nSELECT TO_CHAR(sales_date, 'YYYY-MM') AS sales_month, \n       SUM(sales_amount) AS total_sales\nFROM sales\nGROUP BY TO_CHAR(sales_date, 'YYYY-MM')\nORDER BY sales_month;\n<\/code><\/pre>\n<p>\u9019\u6bb5\u67e5\u8a62\u5c07\u92b7\u552e\u8a18\u9304\u6309\u6708\u4efd\u5206\u7d44\uff0c\u4e26\u8a08\u7b97\u6bcf\u500b\u6708\u7684\u7e3d\u92b7\u552e\u984d\u3002\u4f7f\u7528<code>TO_CHAR()<\/code>\u51fd\u6578\u5c07\u65e5\u671f\u683c\u5f0f\u5316\u70ba\u201cYYYY-MM\u201d\u683c\u5f0f\uff0c\u4fbf\u65bc\u5206\u7d44\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e7%aa%97%e5%8f%a3%e5%87%bd%e6%95%b8%e9%80%b2%e8%a1%8c%e9%ab%98%e6%95%88%e6%9f%a5%e8%a9%a2-vjPVdMXfDD\">\u4f7f\u7528\u7a97\u53e3\u51fd\u6578\u9032\u884c\u9ad8\u6548\u67e5\u8a62<\/h2>\n<p>\u9664\u4e86\u57fa\u672c\u7684\u805a\u5408\u51fd\u6578\uff0cOracle\u9084\u63d0\u4f9b\u4e86\u7a97\u53e3\u51fd\u6578\uff0c\u9019\u4e9b\u51fd\u6578\u53ef\u4ee5\u5728\u4e0d\u6539\u8b8a\u67e5\u8a62\u7d50\u679c\u96c6\u7684\u60c5\u6cc1\u4e0b\u9032\u884c\u8a08\u7b97\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u8a08\u7b97\u6bcf\u7b46\u92b7\u552e\u7684\u7d2f\u7a4d\u7e3d\u984d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>SUM() OVER()<\/code>\uff1a<\/p>\n<pre><code>\nSELECT sales_date, \n       sales_amount, \n       SUM(sales_amount) OVER (ORDER BY sales_date) AS cumulative_sales\nFROM sales;\n<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u8fd4\u56de\u6bcf\u7b46\u92b7\u552e\u7684\u65e5\u671f\u3001\u91d1\u984d\u4ee5\u53ca\u622a\u81f3\u8a72\u65e5\u671f\u7684\u7d2f\u7a4d\u92b7\u552e\u984d\uff0c\u9019\u5c0d\u65bc\u5206\u6790\u92b7\u552e\u8da8\u52e2\u975e\u5e38\u6709\u7528\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-vjPVdMXfDD\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528Oracle\u7684\u805a\u5408\u51fd\u6578\u9032\u884c\u9ad8\u6548\u7684\u6642\u9593\u67e5\u8a62\uff0c\u53ef\u4ee5\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\u5206\u6790\u7d50\u679c\u3002\u901a\u904e\u5408\u7406\u5730\u4f7f\u7528<code>SUM()<\/code>\u3001<code>AVG()<\/code>\u7b49\u805a\u5408\u51fd\u6578\uff0c\u4ee5\u53ca<code>GROUP BY<\/code>\u548c\u7a97\u53e3\u51fd\u6578\uff0c\u6578\u64da\u5206\u6790\u7684\u6548\u7387\u548c\u6e96\u78ba\u6027\u90fd\u80fd\u5f97\u5230\u63d0\u5347\u3002\u9019\u4e9b\u6280\u8853\u4e0d\u50c5\u9069\u7528\u65bc\u92b7\u552e\u6578\u64da\uff0c\u4e5f\u53ef\u4ee5\u61c9\u7528\u65bc\u5176\u4ed6\u985e\u578b\u7684\u6642\u9593\u5e8f\u5217\u6578\u64da\u5206\u6790\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u652f\u6301\u60a8\u7684Oracle\u6578\u64da\u5eab\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5b58\u5132\u9084\u662f\u67e5\u8a62\u6027\u80fd\uff0c\u9078\u64c7\u5408\u9069\u7684\u4f3a\u670d\u5668\u914d\u7f6e\u90fd\u80fd\u986f\u8457\u63d0\u5347\u60a8\u7684\u696d\u52d9\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528Oracle\u805a\u5408\u51fd\u6578\u9032\u884c\u9ad8\u6548\u7684\u6642\u9593\u67e5\u8a62\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\u8207\u67e5\u8a62\u6548\u7387\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-183910","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183910","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=183910"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183910\/revisions"}],"predecessor-version":[{"id":183911,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183910\/revisions\/183911"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183910"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183910"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183910"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}