{"id":175271,"date":"2024-11-08T04:28:20","date_gmt":"2024-11-07T20:28:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175271\/"},"modified":"2024-11-08T04:28:21","modified_gmt":"2024-11-07T20:28:21","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8mysql%e8%a4%87%e8%a3%bd%e4%b8%80%e5%80%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8-mysql-%e4%b8%80%e5%80%8b%e8%a1%a8%e8%a4%87%e8%a3%bd%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175271\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528MySQL\u8907\u88fd\u4e00\u500b\u6578\u64da\u5eab\u8868 (mysql \u4e00\u500b\u8868\u8907\u88fd\u6578\u64da\u5eab\u8868)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8mysql%e8%a4%87%e8%a3%bd%e4%b8%80%e5%80%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a1%a8-mBYtnmRbgt\">\u5982\u4f55\u4f7f\u7528MySQL\u8907\u88fd\u4e00\u500b\u6578\u64da\u5eab\u8868<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u8907\u88fd\u8868\u662f\u4e00\u500b\u5e38\u898b\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u70ba\u4e86\u5099\u4efd\u6578\u64da\u3001\u9032\u884c\u6e2c\u8a66\uff0c\u9084\u662f\u70ba\u4e86\u5275\u5efa\u4e00\u500b\u65b0\u7684\u8868\u4ee5\u4fbf\u65bc\u6578\u64da\u5206\u6790\uff0cMySQL\u90fd\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u9019\u4e00\u76ee\u6a19\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528MySQL\u8907\u88fd\u4e00\u500b\u6578\u64da\u5eab\u8868\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%96%b9%e6%b3%95-mBYtnmRbgt\">\u8907\u88fd\u8868\u7684\u57fa\u672c\u65b9\u6cd5<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u8907\u88fd\u4e00\u500b\u8868\u7684\u6700\u57fa\u672c\u65b9\u6cd5\u662f\u4f7f\u7528CREATE TABLE\u8a9e\u53e5\u7d50\u5408SELECT\u8a9e\u53e5\u3002\u9019\u7a2e\u65b9\u6cd5\u53ef\u4ee5\u5275\u5efa\u4e00\u500b\u65b0\u8868\uff0c\u4e26\u5c07\u539f\u8868\u4e2d\u7684\u6578\u64da\u8907\u88fd\u5230\u65b0\u8868\u4e2d\u3002<\/p>\n<h3 id=\"%e4%bd%bf%e7%94%a8create-table-as-select-mBYtnmRbgt\">\u4f7f\u7528CREATE TABLE &#8230; AS SELECT<\/h3>\n<p>\u9019\u662f\u4e00\u7a2e\u7c21\u55ae\u800c\u6709\u6548\u7684\u65b9\u5f0f\u4f86\u8907\u88fd\u8868\u3002\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE TABLE \u65b0\u8868\u540d AS SELECT * FROM \u539f\u8868\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff0c\u5982\u679c\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba<code>employees<\/code>\u7684\u8868\uff0c\u4e26\u5e0c\u671b\u5c07\u5176\u8907\u88fd\u5230\u4e00\u500b\u540d\u70ba<code>employees_backup<\/code>\u7684\u65b0\u8868\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>CREATE TABLE employees_backup AS SELECT * FROM employees;<\/code><\/pre>\n<p>\u9019\u6a23\u6703\u5275\u5efa\u4e00\u500b\u65b0\u7684\u8868<code>employees_backup<\/code>\uff0c\u4e26\u5c07<code>employees<\/code>\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\u8907\u88fd\u904e\u4f86\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u9019\u7a2e\u65b9\u6cd5\u4e0d\u6703\u8907\u88fd\u539f\u8868\u7684\u7d22\u5f15\u3001\u7d04\u675f\u6216\u89f8\u767c\u5668\u3002<\/p>\n<h3 id=\"%e8%a4%87%e8%a3%bd%e8%a1%a8%e7%b5%90%e6%a7%8b%e8%80%8c%e4%b8%8d%e8%a4%87%e8%a3%bd%e6%95%b8%e6%93%9a-mBYtnmRbgt\">\u8907\u88fd\u8868\u7d50\u69cb\u800c\u4e0d\u8907\u88fd\u6578\u64da<\/h3>\n<p>\u5982\u679c\u53ea\u60f3\u8907\u88fd\u8868\u7684\u7d50\u69cb\u800c\u4e0d\u8907\u88fd\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>CREATE TABLE \u65b0\u8868\u540d LIKE \u539f\u8868\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>CREATE TABLE employees_backup LIKE employees;<\/code><\/pre>\n<p>\u9019\u6a23\u6703\u5275\u5efa\u4e00\u500b\u65b0\u7684\u8868<code>employees_backup<\/code>\uff0c\u5176\u7d50\u69cb\u8207<code>employees<\/code>\u5b8c\u5168\u76f8\u540c\uff0c\u4f46\u4e0d\u5305\u542b\u4efb\u4f55\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8insert-into-select%e8%a4%87%e8%a3%bd%e6%95%b8%e6%93%9a-mBYtnmRbgt\">\u4f7f\u7528INSERT INTO &#8230; SELECT\u8907\u88fd\u6578\u64da<\/h2>\n<p>\u5982\u679c\u5df2\u7d93\u5275\u5efa\u4e86\u65b0\u8868\u4e26\u5e0c\u671b\u5c07\u6578\u64da\u5f9e\u539f\u8868\u8907\u88fd\u5230\u65b0\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528<code>INSERT INTO ... SELECT<\/code>\u8a9e\u53e5\u3002\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>INSERT INTO \u65b0\u8868\u540d SELECT * FROM \u539f\u8868\u540d;<\/code><\/pre>\n<p>\u4f8b\u5982\uff1a<\/p>\n<pre><code>INSERT INTO employees_backup SELECT * FROM employees;<\/code><\/pre>\n<p>\u9019\u6a23\u6703\u5c07<code>employees<\/code>\u8868\u4e2d\u7684\u6240\u6709\u6578\u64da\u63d2\u5165\u5230<code>employees_backup<\/code>\u8868\u4e2d\u3002<\/p>\n<h2 id=\"%e8%a4%87%e8%a3%bd%e7%89%b9%e5%ae%9a%e5%88%97%e6%88%96%e6%a2%9d%e4%bb%b6%e6%95%b8%e6%93%9a-mBYtnmRbgt\">\u8907\u88fd\u7279\u5b9a\u5217\u6216\u689d\u4ef6\u6578\u64da<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u53ea\u60f3\u8907\u88fd\u7279\u5b9a\u7684\u5217\u6216\u7b26\u5408\u67d0\u4e9b\u689d\u4ef6\u7684\u6578\u64da\u3002\u9019\u6642\u53ef\u4ee5\u5728<code>SELECT<\/code>\u8a9e\u53e5\u4e2d\u6307\u5b9a\u5217\u540d\u6216\u6dfb\u52a0<code>WHERE<\/code>\u689d\u4ef6\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u82e5\u53ea\u60f3\u8907\u88fd<code>name<\/code>\u548c<code>salary<\/code>\u5169\u5217\uff0c\u53ef\u4ee5\u9019\u6a23\u505a\uff1a<\/p>\n<pre><code>CREATE TABLE employees_backup AS SELECT name, salary FROM employees;<\/code><\/pre>\n<p>\u5982\u679c\u53ea\u60f3\u8907\u88fd\u85aa\u6c34\u9ad8\u65bc50000\u7684\u54e1\u5de5\uff0c\u53ef\u4ee5\u9019\u6a23\u505a\uff1a<\/p>\n<pre><code>CREATE TABLE employees_high_salary AS SELECT * FROM employees WHERE salary &gt; 50000;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-mBYtnmRbgt\">\u7e3d\u7d50<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u8907\u88fd\u6578\u64da\u5eab\u8868\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\uff0c\u7121\u8ad6\u662f\u8907\u88fd\u6574\u500b\u8868\u3001\u50c5\u8907\u88fd\u7d50\u69cb\uff0c\u9084\u662f\u6839\u64da\u7279\u5b9a\u689d\u4ef6\u8907\u88fd\u6578\u64da\uff0c\u90fd\u53ef\u4ee5\u901a\u904e\u7c21\u55ae\u7684SQL\u8a9e\u53e5\u4f86\u5be6\u73fe\u3002\u9019\u4e9b\u64cd\u4f5c\u5c0d\u65bc\u6578\u64da\u7ba1\u7406\u548c\u5099\u4efd\u975e\u5e38\u91cd\u8981\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\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\u904b\u884c\u60a8\u7684MySQL\u6578\u64da\u5eab\uff0c\u4eab\u53d7\u66f4\u5feb\u7684\u6027\u80fd\u548c\u66f4\u9ad8\u7684\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528MySQL\u8f15\u9b06\u8907\u88fd\u6578\u64da\u5eab\u4e2d\u7684\u4e00\u500b\u8868\uff0c\u5305\u62ec\u6b65\u9a5f\u548c\u793a\u4f8b\uff0c\u5feb\u901f\u5099\u4efd\u6216\u5275\u5efa\u65b0\u8868\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-175271","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175271","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=175271"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175271\/revisions"}],"predecessor-version":[{"id":175272,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175271\/revisions\/175272"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175271"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175271"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175271"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}