{"id":183874,"date":"2024-11-10T08:27:19","date_gmt":"2024-11-10T00:27:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/183874\/"},"modified":"2024-11-10T08:27:20","modified_gmt":"2024-11-10T00:27:20","slug":"%e4%bd%bf%e7%94%a8mysql%e8%87%a8%e6%99%82%e8%a1%a8%e5%8a%a0%e9%80%9f%e6%9f%a5%e8%a9%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/183874\/","title":{"rendered":"\u4f7f\u7528MySQL\u81e8\u6642\u8868\u52a0\u901f\u67e5\u8a62"},"content":{"rendered":"<h1 id=\"%e4%bd%bf%e7%94%a8mysql%e8%87%a8%e6%99%82%e8%a1%a8%e5%8a%a0%e9%80%9f%e6%9f%a5%e8%a9%a2-uCJkpzZbyl\">\u4f7f\u7528MySQL\u81e8\u6642\u8868\u52a0\u901f\u67e5\u8a62<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u67e5\u8a62\u6027\u80fd\u662f\u5f71\u97ff\u61c9\u7528\u7a0b\u5e8f\u6548\u7387\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u512a\u5316\u67e5\u8a62\u6027\u80fd\u7684\u65b9\u6cd5\uff0c\u5176\u4e2d\u4f7f\u7528\u81e8\u6642\u8868\u662f\u4e00\u7a2e\u6709\u6548\u7684\u6280\u8853\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5229\u7528MySQL\u81e8\u6642\u8868\u4f86\u52a0\u901f\u67e5\u8a62\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u5efa\u8b70\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%87%a8%e6%99%82%e8%a1%a8%ef%bc%9f-uCJkpzZbyl\">\u4ec0\u9ebc\u662f\u81e8\u6642\u8868\uff1f<\/h2>\n<p>\u81e8\u6642\u8868\u662fMySQL\u4e2d\u4e00\u7a2e\u7279\u6b8a\u7684\u8868\u683c\uff0c\u9019\u4e9b\u8868\u683c\u5728\u7528\u6236\u6703\u8a71\u671f\u9593\u5b58\u5728\uff0c\u4e26\u5728\u6703\u8a71\u7d50\u675f\u6642\u81ea\u52d5\u522a\u9664\u3002\u81e8\u6642\u8868\u7684\u4e3b\u8981\u7528\u9014\u662f\u5b58\u5132\u4e2d\u9593\u7d50\u679c\uff0c\u9019\u6a23\u53ef\u4ee5\u6e1b\u5c11\u91cd\u8907\u8a08\u7b97\uff0c\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e8%87%a8%e6%99%82%e8%a1%a8%e7%9a%84%e5%84%aa%e5%8b%a2-uCJkpzZbyl\">\u4f7f\u7528\u81e8\u6642\u8868\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u6e1b\u5c11\u91cd\u8907\u8a08\u7b97\uff1a<\/strong>\u7576\u67e5\u8a62\u6d89\u53ca\u591a\u500b\u8907\u96dc\u7684\u8a08\u7b97\u6216\u806f\u63a5\u6642\uff0c\u53ef\u4ee5\u5c07\u4e2d\u9593\u7d50\u679c\u5b58\u5132\u5728\u81e8\u6642\u8868\u4e2d\uff0c\u907f\u514d\u91cd\u8907\u8a08\u7b97\u3002<\/li>\n<li><strong>\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff1a<\/strong>\u901a\u904e\u5c07\u6578\u64da\u5206\u6bb5\u5b58\u5132\uff0c\u81e8\u6642\u8868\u53ef\u4ee5\u52a0\u901f\u5f8c\u7e8c\u67e5\u8a62\u7684\u57f7\u884c\u901f\u5ea6\u3002<\/li>\n<li><strong>\u7c21\u5316\u67e5\u8a62\u908f\u8f2f\uff1a<\/strong>\u4f7f\u7528\u81e8\u6642\u8868\u53ef\u4ee5\u4f7f\u67e5\u8a62\u908f\u8f2f\u66f4\u52a0\u6e05\u6670\uff0c\u4fbf\u65bc\u7dad\u8b77\u548c\u8abf\u8a66\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%89%b5%e5%bb%ba%e5%92%8c%e4%bd%bf%e7%94%a8%e8%87%a8%e6%99%82%e8%a1%a8-uCJkpzZbyl\">\u5982\u4f55\u5275\u5efa\u548c\u4f7f\u7528\u81e8\u6642\u8868<\/h2>\n<p>\u5728MySQL\u4e2d\u5275\u5efa\u81e8\u6642\u8868\u7684\u8a9e\u6cd5\u8207\u5275\u5efa\u666e\u901a\u8868\u76f8\u4f3c\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TEMPORARY TABLE temp_sales AS\nSELECT product_id, SUM(quantity) AS total_quantity\nFROM sales\nGROUP BY product_id;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>temp_sales<\/code> \u7684\u81e8\u6642\u8868\uff0c\u8a72\u8868\u5b58\u5132\u4e86\u6bcf\u500b\u7522\u54c1\u7684\u7e3d\u92b7\u552e\u6578\u91cf\u3002\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u9019\u500b\u81e8\u6642\u8868\u4f86\u9032\u884c\u66f4\u5feb\u7684\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT p.product_name, ts.total_quantity\nFROM products p\nJOIN temp_sales ts ON p.id = ts.product_id\nWHERE ts.total_quantity &gt; 100;<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u5c07\u6bd4\u76f4\u63a5\u5f9e <code>sales<\/code> \u8868\u4e2d\u9032\u884c\u591a\u6b21\u8a08\u7b97\u8981\u5feb\u5f97\u591a\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-uCJkpzZbyl\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u96d6\u7136\u81e8\u6642\u8868\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\u90fd\u80fd\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\uff0c\u4f46\u5728\u4f7f\u7528\u6642\u4ecd\u9700\u6ce8\u610f\u4ee5\u4e0b\u5e7e\u9ede\uff1a<\/p>\n<ul>\n<li><strong>\u6703\u8a71\u7bc4\u570d\uff1a<\/strong>\u81e8\u6642\u8868\u50c5\u5728\u5275\u5efa\u5b83\u7684\u6703\u8a71\u4e2d\u53ef\u898b\uff0c\u5176\u4ed6\u6703\u8a71\u7121\u6cd5\u8a2a\u554f\u3002<\/li>\n<li><strong>\u6027\u80fd\u5f71\u97ff\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u904e\u591a\u7684\u81e8\u6642\u8868\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u56e0\u6b64\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<li><strong>\u6e05\u7406\u8cc7\u6e90\uff1a<\/strong>\u96d6\u7136\u81e8\u6642\u8868\u6703\u5728\u6703\u8a71\u7d50\u675f\u6642\u81ea\u52d5\u522a\u9664\uff0c\u4f46\u5728\u9577\u6642\u9593\u904b\u884c\u7684\u6703\u8a71\u4e2d\uff0c\u61c9\u5b9a\u671f\u6e05\u7406\u4e0d\u518d\u9700\u8981\u7684\u81e8\u6642\u8868\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-uCJkpzZbyl\">\u7d50\u8ad6<\/h2>\n<p>\u4f7f\u7528MySQL\u81e8\u6642\u8868\u662f\u4e00\u7a2e\u6709\u6548\u7684\u67e5\u8a62\u512a\u5316\u6280\u8853\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u67e5\u8a62\u7684\u6027\u80fd\u3002\u901a\u904e\u5408\u7406\u5730\u5275\u5efa\u548c\u4f7f\u7528\u81e8\u6642\u8868\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6e1b\u5c11\u91cd\u8907\u8a08\u7b97\uff0c\u7c21\u5316\u67e5\u8a62\u908f\u8f2f\uff0c\u4e26\u63d0\u9ad8\u6574\u9ad4\u6548\u7387\u3002\u5728\u5be6\u969b\u61c9\u7528\u4e2d\uff0c\u6839\u64da\u5177\u9ad4\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u67e5\u8a62\u512a\u5316\u7b56\u7565\uff0c\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u7cfb\u7d71\u7684\u97ff\u61c9\u901f\u5ea6\u548c\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\uff0c\u63d0\u5347\u696d\u52d9\u904b\u884c\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f7f\u7528MySQL\u81e8\u6642\u8868\u63d0\u5347\u67e5\u8a62\u6548\u7387\uff0c\u7c21\u5316\u6578\u64da\u8655\u7406\u904e\u7a0b\uff0c\u512a\u5316\u6027\u80fd\uff0c\u8b93\u6578\u64da\u5206\u6790\u66f4\u5feb\u901f\u4fbf\u6377\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-183874","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183874","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=183874"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183874\/revisions"}],"predecessor-version":[{"id":183875,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/183874\/revisions\/183875"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=183874"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=183874"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=183874"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}