{"id":76282,"date":"2024-10-16T05:22:17","date_gmt":"2024-10-15T21:22:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76282\/"},"modified":"2024-10-16T05:22:17","modified_gmt":"2024-10-15T21:22:17","slug":"mysql%e5%85%a5%e9%96%80%ef%bc%9a%e4%bd%bf%e7%94%a8use-database%e5%88%87%e6%8f%9b%e5%88%b0%e4%b8%80%e5%80%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e3%80%82","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76282\/","title":{"rendered":"MySQL\u5165\u9580\uff1a\u4f7f\u7528USE [database]\u5207\u63db\u5230\u4e00\u500b\u6578\u64da\u5eab\u3002"},"content":{"rendered":"<h1 id=\"mysql%e5%85%a5%e9%96%80%ef%bc%9a%e4%bd%bf%e7%94%a8use-database%e5%88%87%e6%8f%9b%e5%88%b0%e4%b8%80%e5%80%8b%e6%95%b8%e6%93%9a%e5%ba%ab-aAhoOrtJtV\">MySQL\u5165\u9580\uff1a\u4f7f\u7528USE [database]\u5207\u63db\u5230\u4e00\u500b\u6578\u64da\u5eab<\/h1>\n<p>MySQL\u662f\u4e00\u7a2e\u6d41\u884c\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u7db2\u7ad9\u9084\u662f\u5927\u578b\u4f01\u696d\u7cfb\u7d71\uff0cMySQL\u90fd\u80fd\u63d0\u4f9b\u7a69\u5b9a\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\u3002\u5728\u4f7f\u7528MySQL\u6642\uff0c\u4e86\u89e3\u5982\u4f55\u5207\u63db\u6578\u64da\u5eab\u662f\u975e\u5e38\u91cd\u8981\u7684\uff0c\u9019\u6a23\u624d\u80fd\u6709\u6548\u5730\u7ba1\u7406\u548c\u64cd\u4f5c\u6578\u64da\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afuse%e5%91%bd%e4%bb%a4%ef%bc%9f-aAhoOrtJtV\">\u4ec0\u9ebc\u662fUSE\u547d\u4ee4\uff1f<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c<code>USE<\/code>\u547d\u4ee4\u7528\u65bc\u9078\u64c7\u8981\u64cd\u4f5c\u7684\u6578\u64da\u5eab\u3002\u7576\u4f60\u9023\u63a5\u5230MySQL\u670d\u52d9\u5668\u6642\uff0c\u901a\u5e38\u6703\u6709\u591a\u500b\u6578\u64da\u5eab\u53ef\u4f9b\u9078\u64c7\u3002\u4f7f\u7528<code>USE [database]<\/code>\u547d\u4ee4\u53ef\u4ee5\u544a\u8a34MySQL\u4f60\u5e0c\u671b\u4f7f\u7528\u54ea\u4e00\u500b\u6578\u64da\u5eab\u9032\u884c\u5f8c\u7e8c\u7684\u67e5\u8a62\u548c\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8use%e5%91%bd%e4%bb%a4-aAhoOrtJtV\">\u5982\u4f55\u4f7f\u7528USE\u547d\u4ee4<\/h2>\n<p>\u4f7f\u7528<code>USE<\/code>\u547d\u4ee4\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre><code>USE database_name;<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>database_name<\/code>\u662f\u4f60\u60f3\u8981\u5207\u63db\u5230\u7684\u6578\u64da\u5eab\u7684\u540d\u7a31\u3002\u4ee5\u4e0b\u662f\u5177\u9ad4\u7684\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f1%ef%bc%9a%e9%80%a3%e6%8e%a5%e5%88%b0mysql%e6%9c%8d%e5%8b%99%e5%99%a8-aAhoOrtJtV\">\u6b65\u9a5f1\uff1a\u9023\u63a5\u5230MySQL\u670d\u52d9\u5668<\/h3>\n<p>\u9996\u5148\uff0c\u4f60\u9700\u8981\u4f7f\u7528MySQL\u5ba2\u6236\u7aef\u9023\u63a5\u5230\u4f60\u7684MySQL\u670d\u52d9\u5668\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>mysql -u username -p<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>username<\/code>\u662f\u4f60\u7684MySQL\u7528\u6236\u540d\u3002\u57f7\u884c\u6b64\u547d\u4ee4\u5f8c\uff0c\u7cfb\u7d71\u6703\u63d0\u793a\u4f60\u8f38\u5165\u5bc6\u78bc\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f2%ef%bc%9a%e6%9f%a5%e7%9c%8b%e5%8f%af%e7%94%a8%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-aAhoOrtJtV\">\u6b65\u9a5f2\uff1a\u67e5\u770b\u53ef\u7528\u7684\u6578\u64da\u5eab<\/h3>\n<p>\u9023\u63a5\u6210\u529f\u5f8c\uff0c\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u67e5\u770b\u7576\u524d\u670d\u52d9\u5668\u4e0a\u6240\u6709\u53ef\u7528\u7684\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>SHOW DATABASES;<\/code><\/pre>\n<p>\u9019\u5c07\u5217\u51fa\u6240\u6709\u53ef\u7528\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002<\/p>\n<h3 id=\"%e6%ad%a5%e9%a9%9f3%ef%bc%9a%e5%88%87%e6%8f%9b%e5%88%b0%e6%8c%87%e5%ae%9a%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-aAhoOrtJtV\">\u6b65\u9a5f3\uff1a\u5207\u63db\u5230\u6307\u5b9a\u7684\u6578\u64da\u5eab<\/h3>\n<p>\u4e00\u65e6\u4f60\u77e5\u9053\u4e86\u60f3\u8981\u4f7f\u7528\u7684\u6578\u64da\u5eab\u540d\u7a31\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528<code>USE<\/code>\u547d\u4ee4\u5207\u63db\u5230\u8a72\u6578\u64da\u5eab\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u60f3\u5207\u63db\u5230\u540d\u70ba<code>my_database<\/code>\u7684\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u57f7\u884c\uff1a<\/p>\n<pre><code>USE my_database;<\/code><\/pre>\n<p>\u57f7\u884c\u6b64\u547d\u4ee4\u5f8c\uff0cMySQL\u6703\u986f\u793a\u4e00\u689d\u6d88\u606f\uff0c\u78ba\u8a8d\u4f60\u5df2\u6210\u529f\u5207\u63db\u5230\u8a72\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e5%88%87%e6%8f%9b%e6%95%b8%e6%93%9a%e5%ba%ab%e5%be%8c%e7%9a%84%e6%93%8d%e4%bd%9c-aAhoOrtJtV\">\u5207\u63db\u6578\u64da\u5eab\u5f8c\u7684\u64cd\u4f5c<\/h2>\n<p>\u4e00\u65e6\u4f60\u5207\u63db\u5230\u6240\u9700\u7684\u6578\u64da\u5eab\uff0c\u5c31\u53ef\u4ee5\u958b\u59cb\u57f7\u884c\u5404\u7a2e\u64cd\u4f5c\uff0c\u4f8b\u5982\u5275\u5efa\u8868\u3001\u63d2\u5165\u6578\u64da\u3001\u67e5\u8a62\u6578\u64da\u7b49\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u64cd\u4f5c\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"%e5%89%b5%e5%bb%ba%e4%b8%80%e5%80%8b%e6%96%b0%e8%a1%a8-aAhoOrtJtV\">\u5275\u5efa\u4e00\u500b\u65b0\u8868<\/h3>\n<pre><code>CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(100),\n    email VARCHAR(100)\n);<\/code><\/pre>\n<h3 id=\"%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-aAhoOrtJtV\">\u63d2\u5165\u6578\u64da<\/h3>\n<pre><code>INSERT INTO users (name, email) VALUES ('John Doe', 'john@example.com');<\/code><\/pre>\n<h3 id=\"%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-aAhoOrtJtV\">\u67e5\u8a62\u6578\u64da<\/h3>\n<pre><code>SELECT * FROM users;<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-aAhoOrtJtV\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528<code>USE<\/code>\u547d\u4ee4\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u78ba\u4fdd\u6578\u64da\u5eab\u540d\u7a31\u6b63\u78ba\u7121\u8aa4\uff0c\u5426\u5247\u6703\u51fa\u73fe\u932f\u8aa4\u63d0\u793a\u3002<\/li>\n<li>\u5728\u5207\u63db\u6578\u64da\u5eab\u5f8c\uff0c\u6240\u6709\u5f8c\u7e8c\u7684\u67e5\u8a62\u90fd\u5c07\u91dd\u5c0d\u7576\u524d\u9078\u64c7\u7684\u6578\u64da\u5eab\u9032\u884c\u3002<\/li>\n<li>\u5982\u679c\u9700\u8981\u5207\u63db\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\uff0c\u53ea\u9700\u518d\u6b21\u4f7f\u7528<code>USE<\/code>\u547d\u4ee4\u5373\u53ef\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-aAhoOrtJtV\">\u7e3d\u7d50<\/h2>\n<p>\u638c\u63e1<code>USE<\/code>\u547d\u4ee4\u662f\u4f7f\u7528MySQL\u7684\u57fa\u790e\u4e4b\u4e00\u3002\u901a\u904e\u9019\u500b\u547d\u4ee4\uff0c\u4f60\u53ef\u4ee5\u8f15\u9b06\u5730\u5728\u591a\u500b\u6578\u64da\u5eab\u4e4b\u9593\u5207\u63db\uff0c\u5f9e\u800c\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002\u7121\u8ad6\u4f60\u662f\u958b\u767c\u8005\u9084\u662f\u6578\u64da\u5eab\u7ba1\u7406\u54e1\uff0c\u719f\u6089\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u90fd\u5c07\u5c0d\u4f60\u7684\u5de5\u4f5c\u5927\u6709\u88e8\u76ca\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u6258\u7ba1\u4f60\u7684MySQL\u6578\u64da\u5eab\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u9805\u76ee\u9084\u662f\u5927\u578b\u61c9\u7528\uff0c<a href=\"https:\/\/server.hk\">\u9999\u6e2f\u670d\u52a1\u5668<\/a>\u90fd\u80fd\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528MySQL\u4e2d\u7684USE [database]\u547d\u4ee4\u8f15\u9b06\u5207\u63db\u5230\u6307\u5b9a\u6578\u64da\u5eab\uff0c\u638c\u63e1\u57fa\u672c\u64cd\u4f5c\u6280\u5de7\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-76282","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76282","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=76282"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76282\/revisions"}],"predecessor-version":[{"id":76283,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76282\/revisions\/76283"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76282"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76282"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76282"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}