{"id":175611,"date":"2024-11-08T07:19:16","date_gmt":"2024-11-07T23:19:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175611\/"},"modified":"2024-11-08T07:19:17","modified_gmt":"2024-11-07T23:19:17","slug":"%e5%a6%82%e4%bd%95%e5%be%80%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e5%8f%a6%e4%b8%80%e5%bc%b5%e8%a1%a8%e6%b7%bb%e5%8a%a0%e4%b8%80%e5%88%97%ef%bc%9f-%e5%be%80%e5%8f%a6%e4%b8%80%e5%bc%b5%e8%a1%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175611\/","title":{"rendered":"\u5982\u4f55\u5f80\u6578\u64da\u5eab\u4e2d\u7684\u53e6\u4e00\u5f35\u8868\u6dfb\u52a0\u4e00\u5217\uff1f (\u5f80\u53e6\u4e00\u5f35\u8868\u4e2d\u6dfb\u52a0\u4e00\u5217\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%be%80%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e5%8f%a6%e4%b8%80%e5%bc%b5%e8%a1%a8%e6%b7%bb%e5%8a%a0%e4%b8%80%e5%88%97%ef%bc%9f-CLKzVUeLpK\">\u5982\u4f55\u5f80\u6578\u64da\u5eab\u4e2d\u7684\u53e6\u4e00\u5f35\u8868\u6dfb\u52a0\u4e00\u5217\uff1f<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7d93\u5e38\u9700\u8981\u5c0d\u8868\u9032\u884c\u4fee\u6539\uff0c\u4ee5\u9069\u61c9\u4e0d\u65b7\u8b8a\u5316\u7684\u696d\u52d9\u9700\u6c42\u3002\u7576\u6211\u5011\u9700\u8981\u5728\u4e00\u5f35\u8868\u4e2d\u6dfb\u52a0\u4e00\u5217\u6578\u64da\u6642\uff0c\u901a\u5e38\u6703\u4f7f\u7528 SQL \u8a9e\u53e5\u4f86\u5b8c\u6210\u9019\u4e00\u64cd\u4f5c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u7684\u53e6\u4e00\u5f35\u8868\u6dfb\u52a0\u4e00\u5217\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-CLKzVUeLpK\">\u6578\u64da\u5eab\u8868\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u6211\u5011\u9700\u8981\u4e86\u89e3\u6578\u64da\u5eab\u8868\u7684\u57fa\u672c\u6982\u5ff5\u3002\u6578\u64da\u5eab\u8868\u662f\u4e00\u7a2e\u4ee5\u884c\u548c\u5217\u7684\u5f62\u5f0f\u7d44\u7e54\u6578\u64da\u7684\u7d50\u69cb\u3002\u6bcf\u4e00\u5217\u4ee3\u8868\u4e00\u500b\u6578\u64da\u5b57\u6bb5\uff0c\u800c\u6bcf\u4e00\u884c\u5247\u4ee3\u8868\u4e00\u689d\u8a18\u9304\u3002\u7576\u6211\u5011\u9700\u8981\u5728\u8868\u4e2d\u6dfb\u52a0\u65b0\u7684\u6578\u64da\u5b57\u6bb5\u6642\uff0c\u5c31\u9700\u8981\u9032\u884c\u76f8\u61c9\u7684\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-sql-%e8%aa%9e%e5%8f%a5%e6%b7%bb%e5%8a%a0%e5%88%97-CLKzVUeLpK\">\u4f7f\u7528 SQL \u8a9e\u53e5\u6dfb\u52a0\u5217<\/h2>\n<p>\u5728 SQL \u4e2d\uff0c\u6dfb\u52a0\u5217\u7684\u64cd\u4f5c\u901a\u5e38\u4f7f\u7528 <code>ALTER TABLE<\/code> \u8a9e\u53e5\u3002\u9019\u500b\u8a9e\u53e5\u5141\u8a31\u6211\u5011\u5c0d\u73fe\u6709\u7684\u8868\u9032\u884c\u7d50\u69cb\u4e0a\u7684\u4fee\u6539\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>ALTER TABLE \u8868\u540d ADD \u5217\u540d \u6578\u64da\u985e\u578b;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>users<\/code> \u7684\u8868\uff0c\u4e26\u4e14\u5e0c\u671b\u6dfb\u52a0\u4e00\u500b\u540d\u70ba <code>age<\/code> \u7684\u6574\u6578\u985e\u578b\u5217\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>ALTER TABLE users ADD age INT;<\/code><\/pre>\n<h2 id=\"%e5%be%80%e5%8f%a6%e4%b8%80%e5%bc%b5%e8%a1%a8%e4%b8%ad%e6%b7%bb%e5%8a%a0%e6%95%b8%e6%93%9a-CLKzVUeLpK\">\u5f80\u53e6\u4e00\u5f35\u8868\u4e2d\u6dfb\u52a0\u6578\u64da<\/h2>\n<p>\u9664\u4e86\u6dfb\u52a0\u5217\u4e4b\u5916\uff0c\u6211\u5011\u6709\u6642\u9084\u9700\u8981\u5c07\u6578\u64da\u5f9e\u4e00\u5f35\u8868\u8f49\u79fb\u5230\u53e6\u4e00\u5f35\u8868\u3002\u9019\u53ef\u4ee5\u901a\u904e <code>INSERT INTO<\/code> \u8a9e\u53e5\u4f86\u5be6\u73fe\u3002\u5047\u8a2d\u6211\u5011\u6709\u5169\u5f35\u8868\uff1a<code>users<\/code> \u548c <code>user_details<\/code>\uff0c\u6211\u5011\u5e0c\u671b\u5c07 <code>users<\/code> \u8868\u4e2d\u7684\u6578\u64da\u63d2\u5165\u5230 <code>user_details<\/code> \u8868\u4e2d\u3002<\/p>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u78ba\u4fdd <code>user_details<\/code> \u8868\u4e2d\u6709\u8db3\u5920\u7684\u5217\u4f86\u5b58\u5132\u5f9e <code>users<\/code> \u8868\u4e2d\u63d0\u53d6\u7684\u6578\u64da\u3002\u5982\u679c <code>user_details<\/code> \u8868\u4e2d\u5c1a\u672a\u5b58\u5728\u6240\u9700\u7684\u5217\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 <code>ALTER TABLE<\/code> \u8a9e\u53e5\u4f86\u6dfb\u52a0\u5b83\u5011\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e5%b0%87%e6%95%b8%e6%93%9a%e5%be%9e%e4%b8%80%e5%bc%b5%e8%a1%a8%e6%8f%92%e5%85%a5%e5%88%b0%e5%8f%a6%e4%b8%80%e5%bc%b5%e8%a1%a8-CLKzVUeLpK\">\u793a\u4f8b\uff1a\u5c07\u6578\u64da\u5f9e\u4e00\u5f35\u8868\u63d2\u5165\u5230\u53e6\u4e00\u5f35\u8868<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5c07 <code>users<\/code> \u8868\u4e2d\u7684\u6578\u64da\u63d2\u5165\u5230 <code>user_details<\/code> \u8868\u4e2d\uff1a<\/p>\n<pre><code>INSERT INTO user_details (user_id, age) SELECT id, age FROM users;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5f9e <code>users<\/code> \u8868\u4e2d\u9078\u64c7 <code>id<\/code> \u548c <code>age<\/code> \u5217\uff0c\u4e26\u5c07\u5176\u63d2\u5165\u5230 <code>user_details<\/code> \u8868\u4e2d\u76f8\u61c9\u7684\u5217\u4e2d\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-CLKzVUeLpK\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u9032\u884c\u4efb\u4f55\u7d50\u69cb\u4fee\u6539\u4e4b\u524d\uff0c\u5efa\u8b70\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u3002<\/li>\n<li>\u78ba\u4fdd\u65b0\u6dfb\u52a0\u7684\u5217\u7684\u6578\u64da\u985e\u578b\u8207\u73fe\u6709\u6578\u64da\u7684\u985e\u578b\u76f8\u7b26\uff0c\u4ee5\u907f\u514d\u6578\u64da\u4e0d\u4e00\u81f4\u7684\u554f\u984c\u3002<\/li>\n<li>\u5728\u63d2\u5165\u6578\u64da\u6642\uff0c\u6ce8\u610f\u6aa2\u67e5\u662f\u5426\u6709\u91cd\u8907\u7684\u4e3b\u9375\u6216\u552f\u4e00\u7d04\u675f\uff0c\u4ee5\u9632\u6b62\u63d2\u5165\u5931\u6557\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-CLKzVUeLpK\">\u7e3d\u7d50<\/h2>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u6dfb\u52a0\u5217\u548c\u63d2\u5165\u6578\u64da\u662f\u5e38\u898b\u7684\u64cd\u4f5c\uff0c\u9019\u4e9b\u64cd\u4f5c\u53ef\u4ee5\u5e6b\u52a9\u6211\u5011\u66f4\u597d\u5730\u7ba1\u7406\u548c\u7d44\u7e54\u6578\u64da\u3002\u901a\u904e\u4f7f\u7528 <code>ALTER TABLE<\/code> \u548c <code>INSERT INTO<\/code> \u8a9e\u53e5\uff0c\u6211\u5011\u53ef\u4ee5\u9748\u6d3b\u5730\u8abf\u6574\u6578\u64da\u5eab\u7d50\u69cb\u4ee5\u6eff\u8db3\u696d\u52d9\u9700\u6c42\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5411\u53e6\u4e00\u5f35\u8868\u6dfb\u52a0\u4e00\u5217\uff0c\u638c\u63e1SQL\u8a9e\u53e5\u548c\u64cd\u4f5c\u6b65\u9a5f\uff0c\u63d0\u5347\u6578\u64da\u7ba1\u7406\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-175611","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175611","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=175611"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175611\/revisions"}],"predecessor-version":[{"id":175612,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175611\/revisions\/175612"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}