{"id":179314,"date":"2024-11-09T00:47:19","date_gmt":"2024-11-08T16:47:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179314\/"},"modified":"2024-11-09T00:47:20","modified_gmt":"2024-11-08T16:47:20","slug":"%e5%a6%82%e4%bd%95%e7%94%a8-mysql-%e6%9f%a5%e7%9c%8b%e7%95%b6%e5%89%8d%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%8d%ef%bc%9f-mysql-%e6%9f%a5%e7%9c%8b%e7%95%b6%e5%89%8d%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179314\/","title":{"rendered":"\u5982\u4f55\u7528 MySQL \u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u540d\uff1f (mysql \u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u540d)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e7%94%a8-mysql-%e6%9f%a5%e7%9c%8b%e7%95%b6%e5%89%8d%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%8d%ef%bc%9f-qBABRtXOyP\">\u5982\u4f55\u7528 MySQL \u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u540d\uff1f<\/h1>\n<p>\u5728\u4f7f\u7528 MySQL \u6578\u64da\u5eab\u6642\uff0c\u4e86\u89e3\u7576\u524d\u6240\u4f7f\u7528\u7684\u6578\u64da\u5eab\u540d\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u9019\u4e0d\u50c5\u6709\u52a9\u65bc\u78ba\u4fdd\u60a8\u5728\u6b63\u78ba\u7684\u6578\u64da\u5eab\u4e2d\u57f7\u884c\u67e5\u8a62\uff0c\u9084\u80fd\u907f\u514d\u56e0\u70ba\u5728\u932f\u8aa4\u7684\u6578\u64da\u5eab\u4e2d\u64cd\u4f5c\u800c\u5c0e\u81f4\u7684\u6578\u64da\u640d\u5931\u6216\u932f\u8aa4\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728 MySQL \u4e2d\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u540d\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-sql-%e6%9f%a5%e8%a9%a2%e6%9f%a5%e7%9c%8b%e7%95%b6%e5%89%8d%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%8d-qBABRtXOyP\">\u4f7f\u7528 SQL \u67e5\u8a62\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u540d<\/h2>\n<p>\u5728 MySQL \u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u67e5\u770b\u7576\u524d\u7684\u6578\u64da\u5eab\u540d\uff1a<\/p>\n<pre><code>SELECT DATABASE();<\/code><\/pre>\n<p>\u9019\u689d\u67e5\u8a62\u6703\u8fd4\u56de\u7576\u524d\u9078\u5b9a\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002\u5982\u679c\u60a8\u5c1a\u672a\u9078\u64c7\u4efb\u4f55\u6578\u64da\u5eab\uff0c\u5247\u8fd4\u56de\u7684\u7d50\u679c\u5c07\u70ba NULL\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e9%81%b8%e6%93%87%e6%95%b8%e6%93%9a%e5%ba%ab-qBABRtXOyP\">\u5982\u4f55\u9078\u64c7\u6578\u64da\u5eab<\/h2>\n<p>\u5728\u57f7\u884c\u67e5\u8a62\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u9078\u64c7\u4e00\u500b\u6578\u64da\u5eab\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u9078\u64c7\u6578\u64da\u5eab\uff1a<\/p>\n<pre><code>USE your_database_name;<\/code><\/pre>\n<p>\u5c07 <code>your_database_name<\/code> \u66ff\u63db\u70ba\u60a8\u60f3\u8981\u4f7f\u7528\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002\u9078\u64c7\u6578\u64da\u5eab\u5f8c\uff0c\u60a8\u53ef\u4ee5\u518d\u6b21\u57f7\u884c <code>SELECT DATABASE();<\/code> \u67e5\u8a62\u4f86\u78ba\u8a8d\u7576\u524d\u7684\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e6%9f%a5%e7%9c%8b%e6%89%80%e6%9c%89%e6%95%b8%e6%93%9a%e5%ba%ab-qBABRtXOyP\">\u67e5\u770b\u6240\u6709\u6578\u64da\u5eab<\/h2>\n<p>\u5982\u679c\u60a8\u60f3\u67e5\u770b\u4f3a\u670d\u5668\u4e0a\u6240\u6709\u53ef\u7528\u7684\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>SHOW DATABASES;<\/code><\/pre>\n<p>\u9019\u689d\u547d\u4ee4\u6703\u5217\u51fa\u6240\u6709\u53ef\u7528\u7684\u6578\u64da\u5eab\uff0c\u60a8\u53ef\u4ee5\u5f9e\u4e2d\u9078\u64c7\u9700\u8981\u7684\u6578\u64da\u5eab\u9032\u884c\u64cd\u4f5c\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8-mysql-%e5%ae%a2%e6%88%b6%e7%ab%af%e5%b7%a5%e5%85%b7-qBABRtXOyP\">\u4f7f\u7528 MySQL \u5ba2\u6236\u7aef\u5de5\u5177<\/h2>\n<p>\u9664\u4e86\u4f7f\u7528 SQL \u67e5\u8a62\uff0c\u60a8\u9084\u53ef\u4ee5\u901a\u904e MySQL \u5ba2\u6236\u7aef\u5de5\u5177\u4f86\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u540d\u3002\u8a31\u591a\u5716\u5f62\u5316\u7684 MySQL \u5ba2\u6236\u7aef\uff08\u5982 phpMyAdmin\u3001MySQL Workbench \u7b49\uff09\u90fd\u6703\u5728\u754c\u9762\u4e0a\u986f\u793a\u7576\u524d\u9078\u5b9a\u7684\u6578\u64da\u5eab\u540d\u3002\u9019\u5c0d\u65bc\u4e0d\u719f\u6089\u547d\u4ee4\u884c\u7684\u7528\u6236\u4f86\u8aaa\u662f\u4e00\u500b\u65b9\u4fbf\u7684\u9078\u64c7\u3002<\/p>\n<h2 id=\"%e5%b8%b8%e8%a6%8b%e5%95%8f%e9%a1%8c-qBABRtXOyP\">\u5e38\u898b\u554f\u984c<\/h2>\n<h3 id=\"1-%e5%a6%82%e6%9e%9c%e6%88%91%e6%b2%92%e6%9c%89%e9%81%b8%e6%93%87%e4%bb%bb%e4%bd%95%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%8c%e6%9c%83%e7%99%bc%e7%94%9f%e4%bb%80%e9%ba%bc%ef%bc%9f-qBABRtXOyP\">1. \u5982\u679c\u6211\u6c92\u6709\u9078\u64c7\u4efb\u4f55\u6578\u64da\u5eab\uff0c\u6703\u767c\u751f\u4ec0\u9ebc\uff1f<\/h3>\n<p>\u5982\u679c\u60a8\u6c92\u6709\u9078\u64c7\u4efb\u4f55\u6578\u64da\u5eab\uff0c\u57f7\u884c <code>SELECT DATABASE();<\/code> \u5c07\u8fd4\u56de NULL\u3002\u9019\u610f\u5473\u8457\u60a8\u9700\u8981\u5148\u9078\u64c7\u4e00\u500b\u6578\u64da\u5eab\u624d\u80fd\u9032\u884c\u64cd\u4f5c\u3002<\/p>\n<h3 id=\"2-%e5%a6%82%e4%bd%95%e5%88%87%e6%8f%9b%e5%88%b0%e5%8f%a6%e4%b8%80%e5%80%8b%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9f-qBABRtXOyP\">2. \u5982\u4f55\u5207\u63db\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\uff1f<\/h3>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528 <code>USE another_database_name;<\/code> \u547d\u4ee4\u4f86\u5207\u63db\u5230\u53e6\u4e00\u500b\u6578\u64da\u5eab\u3002\u8acb\u78ba\u4fdd\u5728\u5207\u63db\u4e4b\u524d\u5df2\u7d93\u9078\u64c7\u4e86\u6b63\u78ba\u7684\u6578\u64da\u5eab\u3002<\/p>\n<h3 id=\"3-%e6%88%91%e5%8f%af%e4%bb%a5%e5%9c%a8%e4%b8%80%e5%80%8b%e6%9f%a5%e8%a9%a2%e4%b8%ad%e5%90%8c%e6%99%82%e6%9f%a5%e7%9c%8b%e7%95%b6%e5%89%8d%e6%95%b8%e6%93%9a%e5%ba%ab%e5%92%8c%e6%89%80%e6%9c%89-qBABRtXOyP\">3. \u6211\u53ef\u4ee5\u5728\u4e00\u500b\u67e5\u8a62\u4e2d\u540c\u6642\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u548c\u6240\u6709\u6578\u64da\u5eab\u55ce\uff1f<\/h3>\n<p>\u662f\u7684\uff0c\u60a8\u53ef\u4ee5\u5728\u4e00\u500b\u67e5\u8a62\u4e2d\u4f7f\u7528 <code>SELECT DATABASE(), (SELECT GROUP_CONCAT(SCHEMA_NAME) FROM INFORMATION_SCHEMA.SCHEMATA) AS all_databases;<\/code> \u4f86\u540c\u6642\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u548c\u6240\u6709\u6578\u64da\u5eab\u7684\u540d\u7a31\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-qBABRtXOyP\">\u7e3d\u7d50<\/h2>\n<p>\u4e86\u89e3\u5982\u4f55\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u540d\u662f\u4f7f\u7528 MySQL \u7684\u57fa\u672c\u6280\u80fd\u4e4b\u4e00\u3002\u901a\u904e\u4f7f\u7528 <code>SELECT DATABASE();<\/code> \u547d\u4ee4\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u78ba\u8a8d\u7576\u524d\u7684\u6578\u64da\u5eab\u3002\u6b64\u5916\uff0c\u9078\u64c7\u548c\u5207\u63db\u6578\u64da\u5eab\u7684\u904e\u7a0b\u4e5f\u76f8\u5c0d\u7c21\u55ae\u3002\u7121\u8ad6\u60a8\u662f\u4f7f\u7528\u547d\u4ee4\u884c\u9084\u662f\u5716\u5f62\u5316\u5de5\u5177\uff0c\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u90fd\u80fd\u5e6b\u52a9\u60a8\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\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\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u5176\u4ed6\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u5c07\u6709\u52a9\u65bc\u63d0\u5347\u60a8\u7684\u696d\u52d9\u6548\u7387\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4f7f\u7528 MySQL \u67e5\u8a62\u7576\u524d\u6578\u64da\u5eab\u540d\u7a31\uff0c\u7c21\u55ae\u6b65\u9a5f\u6559\u4f60\u8f15\u9b06\u7372\u53d6\u6240\u9700\u4fe1\u606f\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-179314","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179314","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=179314"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179314\/revisions"}],"predecessor-version":[{"id":179315,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179314\/revisions\/179315"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179314"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179314"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179314"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}