{"id":76584,"date":"2024-10-16T08:02:14","date_gmt":"2024-10-16T00:02:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76584\/"},"modified":"2024-10-16T08:02:14","modified_gmt":"2024-10-16T00:02:14","slug":"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%be%e8%b7%a8%e8%a1%a8%e6%9b%b4%e6%96%b0%e8%88%87%e6%95%b8%e6%93%9a%e5%90%88%e4%bd%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76584\/","title":{"rendered":"MySQL\u6578\u64da\u5eab\u5982\u4f55\u5be6\u73fe\u8de8\u8868\u66f4\u65b0\u8207\u6578\u64da\u5408\u4f75"},"content":{"rendered":"<h1 id=\"mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e5%a6%82%e4%bd%95%e5%af%a6%e7%8f%be%e8%b7%a8%e8%a1%a8%e6%9b%b4%e6%96%b0%e8%88%87%e6%95%b8%e6%93%9a%e5%90%88%e4%bd%b5-cjCkVlFCxW\">MySQL\u6578\u64da\u5eab\u5982\u4f55\u5be6\u73fe\u8de8\u8868\u66f4\u65b0\u8207\u6578\u64da\u5408\u4f75<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u6578\u64da\u7ba1\u7406\u4e2d\uff0cMySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u529f\u80fd\u4f86\u8655\u7406\u6578\u64da\u7684\u5b58\u5132\u548c\u64cd\u4f5c\u3002\u5176\u4e2d\uff0c\u8de8\u8868\u66f4\u65b0\u8207\u6578\u64da\u5408\u4f75\u662f\u975e\u5e38\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u5c24\u5176\u662f\u5728\u9700\u8981\u5f9e\u591a\u500b\u8868\u4e2d\u63d0\u53d6\u548c\u6574\u5408\u6578\u64da\u7684\u60c5\u6cc1\u4e0b\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728MySQL\u4e2d\u5be6\u73fe\u9019\u4e9b\u64cd\u4f5c\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e8%b7%a8%e8%a1%a8%e6%9b%b4%e6%96%b0%e7%9a%84%e6%a6%82%e5%bf%b5-cjCkVlFCxW\">\u8de8\u8868\u66f4\u65b0\u7684\u6982\u5ff5<\/h2>\n<p>\u8de8\u8868\u66f4\u65b0\u662f\u6307\u5728\u4e00\u500bSQL\u8a9e\u53e5\u4e2d\u540c\u6642\u66f4\u65b0\u591a\u500b\u8868\u7684\u6578\u64da\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528JOIN\u8a9e\u53e5\u4f86\u9023\u63a5\u4e0d\u540c\u7684\u8868\uff0c\u4e26\u6839\u64da\u67d0\u4e9b\u689d\u4ef6\u9032\u884c\u66f4\u65b0\u3002\u9019\u7a2e\u64cd\u4f5c\u5728\u6578\u64da\u5eab\u8a2d\u8a08\u4e2d\u975e\u5e38\u5e38\u898b\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u4fdd\u6301\u6578\u64da\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u7684\u60c5\u6cc1\u4e0b\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8join%e9%80%b2%e8%a1%8c%e8%b7%a8%e8%a1%a8%e6%9b%b4%e6%96%b0-cjCkVlFCxW\">\u4f7f\u7528JOIN\u9032\u884c\u8de8\u8868\u66f4\u65b0<\/h3>\n<p>\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528UPDATE\u8a9e\u53e5\u7d50\u5408JOIN\u4f86\u5be6\u73fe\u8de8\u8868\u66f4\u65b0\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684\u8a9e\u6cd5\u7d50\u69cb\uff1a<\/p>\n<pre><code>UPDATE \u88681\nJOIN \u88682 ON \u88681.\u6b04\u4f4d = \u88682.\u6b04\u4f4d\nSET \u88681.\u66f4\u65b0\u6b04\u4f4d = \u65b0\u503c\nWHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u5169\u500b\u8868\uff1a<strong>customers<\/strong>\uff08\u5ba2\u6236\uff09\u548c<strong>orders<\/strong>\uff08\u8a02\u55ae\uff09\u3002\u6211\u5011\u5e0c\u671b\u6839\u64da\u5ba2\u6236\u7684ID\u66f4\u65b0\u8a02\u55ae\u7684\u72c0\u614b\uff1a<\/p>\n<pre><code>UPDATE orders\nJOIN customers ON orders.customer_id = customers.id\nSET orders.status = '\u5df2\u767c\u8ca8'\nWHERE customers.region = '\u9999\u6e2f';<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5c07\u6240\u6709\u4f86\u81ea\u9999\u6e2f\u7684\u5ba2\u6236\u7684\u8a02\u55ae\u72c0\u614b\u66f4\u65b0\u70ba\u201c\u5df2\u767c\u8ca8\u201d\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%90%88%e4%bd%b5%e7%9a%84%e6%a6%82%e5%bf%b5-cjCkVlFCxW\">\u6578\u64da\u5408\u4f75\u7684\u6982\u5ff5<\/h2>\n<p>\u6578\u64da\u5408\u4f75\u662f\u6307\u5c07\u4f86\u81ea\u4e0d\u540c\u8868\u7684\u6578\u64da\u6574\u5408\u5230\u4e00\u500b\u8868\u4e2d\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528INSERT INTO\u8a9e\u53e5\u548cSELECT\u8a9e\u53e5\u7684\u7d50\u5408\u3002\u6578\u64da\u5408\u4f75\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u5728\u5206\u6790\u6578\u64da\u6642\u7372\u5f97\u66f4\u5168\u9762\u7684\u8996\u5716\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8insert-into%e5%92%8cselect%e9%80%b2%e8%a1%8c%e6%95%b8%e6%93%9a%e5%90%88%e4%bd%b5-cjCkVlFCxW\">\u4f7f\u7528INSERT INTO\u548cSELECT\u9032\u884c\u6578\u64da\u5408\u4f75<\/h3>\n<p>\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\u4f86\u5408\u4f75\u6578\u64da\uff1a<\/p>\n<pre><code>INSERT INTO \u76ee\u6a19\u8868 (\u6b04\u4f4d1, \u6b04\u4f4d2, ...)\nSELECT \u6b04\u4f4d1, \u6b04\u4f4d2, ...\nFROM \u6e90\u8868\nWHERE \u689d\u4ef6;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b<strong>archived_orders<\/strong>\uff08\u5df2\u5b58\u6a94\u8a02\u55ae\uff09\u8868\uff0c\u6211\u5011\u5e0c\u671b\u5c07\u6240\u6709\u72c0\u614b\u70ba\u201c\u5df2\u767c\u8ca8\u201d\u7684\u8a02\u55ae\u5f9e<strong>orders<\/strong>\u8868\u5408\u4f75\u5230\u9019\u500b\u8868\u4e2d\uff1a<\/p>\n<pre><code>INSERT INTO archived_orders (order_id, customer_id, status)\nSELECT order_id, customer_id, status\nFROM orders\nWHERE status = '\u5df2\u767c\u8ca8';<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6211\u5011\u5c31\u53ef\u4ee5\u5c07\u6240\u6709\u5df2\u767c\u8ca8\u7684\u8a02\u55ae\u5b58\u6a94\uff0c\u4ee5\u4fbf\u672a\u4f86\u7684\u67e5\u8a62\u548c\u5206\u6790\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-cjCkVlFCxW\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u9032\u884c\u8de8\u8868\u66f4\u65b0\u548c\u6578\u64da\u5408\u4f75\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fddJOIN\u689d\u4ef6\u6b63\u78ba\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u66f4\u65b0\u3002<\/li>\n<li>\u5728\u9032\u884c\u5927\u898f\u6a21\u66f4\u65b0\u6216\u5408\u4f75\u64cd\u4f5c\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\u3002<\/li>\n<li>\u4f7f\u7528WHERE\u5b50\u53e5\u4f86\u9650\u5236\u66f4\u65b0\u6216\u5408\u4f75\u7684\u7bc4\u570d\uff0c\u4ee5\u63d0\u9ad8\u6548\u7387\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-cjCkVlFCxW\">\u7e3d\u7d50<\/h2>\n<p>\u8de8\u8868\u66f4\u65b0\u8207\u6578\u64da\u5408\u4f75\u662fMySQL\u4e2d\u975e\u5e38\u91cd\u8981\u7684\u64cd\u4f5c\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u6709\u6548\u5730\u7ba1\u7406\u548c\u6574\u5408\u6578\u64da\u3002\u901a\u904e\u4f7f\u7528JOIN\u548cINSERT INTO\u8a9e\u53e5\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9748\u6d3b\u5730\u8655\u7406\u591a\u500b\u8868\u4e4b\u9593\u7684\u6578\u64da\u95dc\u4fc2\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\u5834\u666f\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u5728MySQL\u6578\u64da\u5eab\u4e2d\u5be6\u73fe\u8de8\u8868\u66f4\u65b0\u8207\u6578\u64da\u5408\u4f75\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\u6548\u7387\u8207\u6e96\u78ba\u6027\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-76584","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76584","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=76584"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76584\/revisions"}],"predecessor-version":[{"id":76585,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76584\/revisions\/76585"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}