{"id":200525,"date":"2025-05-06T10:04:44","date_gmt":"2025-05-06T02:04:44","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200525\/"},"modified":"2025-05-06T10:04:44","modified_gmt":"2025-05-06T02:04:44","slug":"mysql-%e6%95%b0%e6%8d%ae%e5%ba%93%e6%93%8d%e4%bd%9c-er_bad_db_error-%e9%94%99%e8%af%af%ef%bc%9a%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3%e6%9c%aa%e7%9f%a5%e6%95%b0%e6%8d%ae%e5%ba%93%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200525\/","title":{"rendered":"MySQL \u6570\u636e\u5e93\u64cd\u4f5c &#8220;ER_BAD_DB_ERROR&#8221; \u9519\u8bef\uff1a\u5982\u4f55\u89e3\u51b3\u672a\u77e5\u6570\u636e\u5e93\u95ee\u9898\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL \u6570\u636e\u5e93\u64cd\u4f5c &#8220;ER_BAD_DB_ERROR&#8221; \u9519\u8bef\uff1a\u5982\u4f55\u89e3\u51b3\u672a\u77e5\u6570\u636e\u5e93\u95ee\u9898\uff1f<\/h1>\n<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241107\/1730968956672c7d7c90e9c.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql \u6570\u636e\u5e93\u64cd\u4f5c&#8221;er_bad_db_error&#8221;\u9519\u8bef\u8be6\u89e3<\/strong><\/p>\n<p><strong>\u95ee\u9898\uff1a<\/strong><\/p>\n<p>\u5728\u8fdb\u884c mysql \u6570\u636e\u5e93\u64cd\u4f5c\u65f6\uff0c\u51fa\u73b0\u4e86\u4ee5\u4e0b\u9519\u8bef\uff1a<\/p>\n<pre>{\n    \"status\": 1,\n    \"msg\": \"er_bad_db_error: unknown database 'my_db_01.getloonwh_users'\"\n}<\/pre>\n<p><strong>\u539f\u56e0\uff1a<\/strong><\/p>\n<p>\u8be5\u9519\u8bef\u8868\u660e mysql \u65e0\u6cd5\u8bc6\u522b\u63d0\u4f9b\u7684\u6570\u636e\u5e93\u6216\u8868\u540d\u3002\u5728\u4e0a\u8ff0\u60c5\u51b5\u4e0b\uff0c\u9519\u8bef\u4fe1\u606f\u660e\u786e\u6307\u51fa\u6570\u636e\u5e93 &#8220;my_db_01.getloonwh_users&#8221; \u672a\u77e5\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6848\uff1a<\/strong><\/p>\n<p>\u8981\u89e3\u51b3\u6b64\u9519\u8bef\uff0c\u9700\u8981\u4fee\u6539 sql \u8bed\u53e5\uff0c\u5728\u64cd\u4f5c\u8868\u4e4b\u524d\u5148\u9009\u62e9\u6b63\u786e\u7684\u6570\u636e\u5e93\u3002\u4fee\u6539\u540e\u7684 sql \u8bed\u53e5\u5e94\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<pre>USE my_db_01;\nselece * from getloonwh_users where username=?&amp;&amp;usernumber=?<\/pre>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u5728 mysql \u4e2d\uff0c\u6570\u636e\u5e93\u540d\u548c\u8868\u540d\u533a\u5206\u5927\u5c0f\u5199\u3002<\/li>\n<li>\u5728\u9009\u62e9\u6570\u636e\u5e93\u540e\uff0c\u540e\u7eed sql \u8bed\u53e5\u4e2d\u7684\u8868\u540d\u53ef\u4ee5\u4e0d\u5e26\u6570\u636e\u5e93\u524d\u7f00\u3002<\/li>\n<\/ul>\n<p>\u6587\u4e2d\u5173\u4e8e\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aMySQL \u6570\u636e\u5e93\u64cd\u4f5c &#8220;ER_BAD_DB_ERROR&#8221; \u9519\u8bef\uff1a\u5982\u4f55\u89e3\u51b3\u672a\u77e5\u6570\u636e\u5e93\u95ee\u9898\uff1f\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u6570\u636e\u5e93\u64cd\u4f5c &#038;#82&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200525","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200525","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200525"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200525\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}