{"id":177035,"date":"2024-11-08T12:48:18","date_gmt":"2024-11-08T04:48:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177035\/"},"modified":"2024-11-08T12:48:19","modified_gmt":"2024-11-08T04:48:19","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41007-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_db_create_exists%ef%bc%89%e7%84%a1%e6%b3%95%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177035\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41007 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_DB_CREATE_EXISTS\uff09\u7121\u6cd5\u5275\u5efa\u6578\u64da\u5eab\u201c\uff05s\u201d\uff1b\u6578\u64da\u5eab\u5df2\u5b58\u5728"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41007-sql%e7%8b%80%e6%85%8b%ef%bc%9ahy000%ef%bc%88er_db_create_exists%ef%bc%89%e7%84%a1%e6%b3%95%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a-GgowFOWsrJ\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41007 &#8211; SQL\u72c0\u614b\uff1aHY000\uff08ER_DB_CREATE_EXISTS\uff09\u7121\u6cd5\u5275\u5efa\u6578\u64da\u5eab\u201c\uff05s\u201d\uff1b\u6578\u64da\u5eab\u5df2\u5b58\u5728<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc1007\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u7d93\u5b58\u5728\u7684\u6578\u64da\u5eab\u6642\uff0c\u7cfb\u7d71\u6703\u8fd4\u56de\u4ee5\u4e0b\u932f\u8aa4\u4fe1\u606f\uff1a\u201c\u7121\u6cd5\u5275\u5efa\u6578\u64da\u5eab\u2018%s\u2019\uff1b\u6578\u64da\u5eab\u5df2\u5b58\u5728\u201d\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e5%8e%9f%e5%9b%a0-GgowFOWsrJ\">\u932f\u8aa4\u539f\u56e0<\/h2>\n<p>MySQL\u932f\u8aa41007\u7684\u4e3b\u8981\u539f\u56e0\u662f\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u7d93\u5b58\u5728\u7684\u6578\u64da\u5eab\u3002\u7576\u4f60\u57f7\u884c\u4ee5\u4e0bSQL\u8a9e\u53e5\u6642\uff1a<\/p>\n<pre><code>CREATE DATABASE my_database;<\/code><\/pre>\n<p>\u5982\u679c\u201cmy_database\u201d\u5df2\u7d93\u5b58\u5728\uff0c\u5247\u6703\u51fa\u73fe\u932f\u8aa41007\u3002\u9019\u662f\u56e0\u70baMySQL\u4e0d\u5141\u8a31\u540c\u540d\u7684\u6578\u64da\u5eab\u5b58\u5728\u65bc\u540c\u4e00\u500b\u4f3a\u670d\u5668\u4e0a\u3002<\/p>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8-GgowFOWsrJ\">\u6aa2\u67e5\u6578\u64da\u5eab\u662f\u5426\u5b58\u5728<\/h2>\n<p>\u5728\u5617\u8a66\u5275\u5efa\u6578\u64da\u5eab\u4e4b\u524d\uff0c\u6700\u597d\u5148\u6aa2\u67e5\u8a72\u6578\u64da\u5eab\u662f\u5426\u5df2\u7d93\u5b58\u5728\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u67e5\u8a62\u7576\u524d\u7684\u6578\u64da\u5eab\u5217\u8868\uff1a<\/p>\n<pre><code>SHOW DATABASES;<\/code><\/pre>\n<p>\u9019\u5c07\u5217\u51fa\u6240\u6709\u73fe\u6709\u7684\u6578\u64da\u5eab\uff0c\u5e6b\u52a9\u4f60\u78ba\u8a8d\u662f\u5426\u5df2\u7d93\u5b58\u5728\u540c\u540d\u7684\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-GgowFOWsrJ\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<h3 id=\"1-%e4%bd%bf%e7%94%a8if-not-exists%e8%aa%9e%e5%8f%a5-GgowFOWsrJ\">1. \u4f7f\u7528IF NOT EXISTS\u8a9e\u53e5<\/h3>\n<p>\u5982\u679c\u4f60\u5e0c\u671b\u5728\u6578\u64da\u5eab\u4e0d\u5b58\u5728\u7684\u60c5\u6cc1\u4e0b\u5275\u5efa\u5b83\uff0c\u53ef\u4ee5\u4f7f\u7528\u201cIF NOT EXISTS\u201d\u8a9e\u53e5\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u932f\u8aa4\u7684\u767c\u751f\uff1a<\/p>\n<pre><code>CREATE DATABASE IF NOT EXISTS my_database;<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u53ea\u6709\u5728\u201cmy_database\u201d\u4e0d\u5b58\u5728\u7684\u60c5\u6cc1\u4e0b\uff0cMySQL\u624d\u6703\u5275\u5efa\u5b83\u3002<\/p>\n<h3 id=\"2-%e5%88%aa%e9%99%a4%e5%b7%b2%e5%ad%98%e5%9c%a8%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab-GgowFOWsrJ\">2. \u522a\u9664\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab<\/h3>\n<p>\u5982\u679c\u4f60\u78ba\u5b9a\u4e0d\u518d\u9700\u8981\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u5b83\u3002\u8acb\u6ce8\u610f\uff0c\u9019\u5c07\u6c38\u4e45\u522a\u9664\u6578\u64da\u5eab\u53ca\u5176\u6240\u6709\u6578\u64da\uff0c\u56e0\u6b64\u5728\u57f7\u884c\u6b64\u64cd\u4f5c\u4e4b\u524d\uff0c\u52d9\u5fc5\u5099\u4efd\u91cd\u8981\u6578\u64da\uff1a<\/p>\n<pre><code>DROP DATABASE my_database;<\/code><\/pre>\n<p>\u57f7\u884c\u6b64\u547d\u4ee4\u5f8c\uff0c\u4f60\u5c31\u53ef\u4ee5\u91cd\u65b0\u5275\u5efa\u6578\u64da\u5eab\u4e86\u3002<\/p>\n<h3 id=\"3-%e6%9b%b4%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e5%90%8d%e7%a8%b1-GgowFOWsrJ\">3. \u66f4\u6539\u6578\u64da\u5eab\u540d\u7a31<\/h3>\n<p>\u5982\u679c\u4f60\u4e0d\u60f3\u522a\u9664\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab\uff0c\u53e6\u4e00\u500b\u9078\u64c7\u662f\u66f4\u6539\u4f60\u8981\u5275\u5efa\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514d\u540d\u7a31\u885d\u7a81\uff1a<\/p>\n<pre><code>CREATE DATABASE my_new_database;<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GgowFOWsrJ\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41007\u901a\u5e38\u662f\u7531\u65bc\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab\u800c\u5f15\u8d77\u7684\u3002\u901a\u904e\u4f7f\u7528\u201cIF NOT EXISTS\u201d\u8a9e\u53e5\u3001\u522a\u9664\u5df2\u5b58\u5728\u7684\u6578\u64da\u5eab\u6216\u66f4\u6539\u6578\u64da\u5eab\u540d\u7a31\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002\u4e86\u89e3\u5982\u4f55\u8655\u7406\u9019\u4e9b\u932f\u8aa4\u4e0d\u50c5\u80fd\u63d0\u9ad8\u958b\u767c\u6548\u7387\uff0c\u9084\u80fd\u5e6b\u52a9\u4f60\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u5eab\u3002<\/p>\n<p>\u5982\u679c\u4f60\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u4e14\u9ad8\u6548\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u9019\u5c07\u70ba\u4f60\u7684\u61c9\u7528\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u548c\u9748\u6d3b\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41007\uff08HY000\uff09\u7684\u65b9\u6cd5\uff0c\u89e3\u6c7a\u7121\u6cd5\u5275\u5efa\u5df2\u5b58\u5728\u6578\u64da\u5eab\u7684\u554f\u984c\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u548c\u6b65\u9a5f\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-177035","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177035","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=177035"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177035\/revisions"}],"predecessor-version":[{"id":177036,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177035\/revisions\/177036"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}