{"id":26548,"date":"2024-11-24T10:00:24","date_gmt":"2024-11-24T02:00:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/26548\/"},"modified":"2024-11-24T10:00:24","modified_gmt":"2024-11-24T02:00:24","slug":"mysql%e5%87%ba%e7%8e%b0er_bad_db_error-unknown-database-my_db_01-getloonwh_users%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/26548\/","title":{"rendered":"MySQL\u51fa\u73b0\u201cER_BAD_DB_ERROR: Unknown database ‘my_db_01.getloonwh_users’\u201d\u5982\u4f55\u89e3\u51b3\uff1f"},"content":{"rendered":"

\"MySQL\u51fa\u73b0\u201cER_BAD_DB_ERROR:<\/p>\n

“er_bad_db_error: unknown database ‘my_db_01.getloonwh_users'”\u89e3\u51b3\u65b9\u6848<\/strong><\/p>\n

\u5373\u4f7f\u60a8\u5df2\u7ecf\u63d0\u4f9b\u4e86\u6b63\u786e\u7684\u4ee3\u7801\u5757\u548c\u9519\u8bef\u6d88\u606f\uff0c\u4f46\u4f3c\u4e4e\u4ecd\u7136\u9047\u5230\u6b64\u7279\u5b9a\u9519\u8bef\uff1aer_bad_db_error: unknown database ‘my_db_01.getloonwh_users’\u3002<\/p>\n

\u8fd9\u4e2a\u9519\u8bef\u8868\u660e\u9047\u5230\u4e86\u4e0e\u6570\u636e\u5e93\u540d\u79f0\u6216\u8868\u540d\u79f0\u6709\u5173\u7684\u8bed\u6cd5\u95ee\u9898\u3002\u89e3\u51b3\u6b64\u95ee\u9898\u9700\u8981\u4ed4\u7ec6\u89c2\u5bdf\u60a8\u7684\u3002<\/p>\n

\u5728\u60a8\u7684\u4ee3\u7801\u4e2d\uff0c\u60a8\u5728\u67e5\u8be2\u4e2d\u4f7f\u7528\u4e86my_db_01.getloonwh_users\u4f5c\u4e3a\u6570\u636e\u5e93\u540d\u79f0\u548c\u8868\u540d\u79f0\uff0c\u4f46\u60a8\u6ca1\u6709\u9996\u5148\u9009\u62e9\u6570\u636e\u5e93\u3002\u5728mysql\u4e2d\uff0c\u6b63\u786e\u7684\u8bed\u6cd5\u5e94\u8be5\u662f\u5148\u4f7f\u7528use\u8bed\u53e5\u9009\u62e9\u6570\u636e\u5e93\uff0c\u7136\u540e\u518d\u5bf9\u8868\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u3002<\/p>\n

\u56e0\u6b64\uff0c\u60a8\u9700\u8981\u5c06\u4ee3\u7801\u4e2d\u7684\u67e5\u8be2\u66f4\u6539\u4e3a\uff1a<\/p>\n

USE my_db_01;\nSELECT * FROM getloonwh_users WHERE username=? AND usernumber=?;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u5728\u6267\u884c\u6b64\u4fee\u6539\u540e\uff0c\u60a8\u7684\u67e5\u8be2\u5e94\u8be5\u80fd\u591f\u6b63\u786e\u9009\u62e9\u6570\u636e\u5e93\u5e76\u6267\u884c\u67e5\u8be2\u3002\u8fd9\u5c06\u89e3\u51b3\u60a8\u7684er_bad_db_error\u95ee\u9898\uff0c\u8ba9\u60a8\u80fd\u591f\u6210\u529f\u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fMySQL\u51fa\u73b0\u201cER_BAD_DB_ERROR: Unknown database ‘my_db_01.getloonwh_users’\u201d\u5982\u4f55\u89e3\u51b3\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
“er_bad_db_error: unknown database ‘my_db_01.getloonwh_users’”\u89e3\u51b3\u65b9\u6848 \u5373\u4f7f\u60a8\u5df2\u7ecf\u63d0\u4f9b\u4e86\u6b63\u786e\u7684\u4ee3\u7801\u5757\u548c\u9519\u8bef\u6d88\u606f\uff0c\u4f46\u4f3c\u4e4e\u4ecd\u7136\u9047\u5230\u6b64\u7279\u5b9a\u9519\u8bef\uff1aer_bad_db_error: unknown database ‘my_db_01.getloonwh_users’\u3002 \u8fd9\u4e2a\u9519\u8bef\u8868\u660e\u9047\u5230\u4e86\u4e0e\u6570\u636e\u5e93\u540d\u79f0\u6216\u8868\u540d\u79f0\u6709\u5173\u7684\u8bed\u6cd5\u95ee\u9898\u3002\u89e3\u51b3\u6b64\u95ee\u9898\u9700\u8981\u4ed4\u7ec6\u89c2\u5bdf\u60a8\u7684\u3002 \u5728\u60a8\u7684\u4ee3\u7801\u4e2d\uff0c\u60a8\u5728\u67e5\u8be2\u4e2d\u4f7f\u7528\u4e86my_db_01.getloonwh_users\u4f5c\u4e3a\u6570\u636e\u5e93\u540d\u79f0\u548c\u8868\u540d\u79f0\uff0c\u4f46\u60a8\u6ca1\u6709\u9996\u5148\u9009\u62e9\u6570\u636e\u5e93\u3002\u5728mysql\u4e2d\uff0c\u6b63\u786e\u7684\u8bed\u6cd5\u5e94\u8be5\u662f\u5148\u4f7f\u7528use\u8bed\u53e5\u9009\u62e9\u6570\u636e\u5e93\uff0c\u7136\u540e\u518d\u5bf9\u8868\u6267\u884c\u4efb\u4f55\u64cd\u4f5c\u3002 \u56e0\u6b64\uff0c\u60a8\u9700\u8981\u5c06\u4ee3\u7801\u4e2d\u7684\u67e5\u8be2\u66f4\u6539\u4e3a\uff1a USE my_db_01; SELECT * FROM getloonwh_users WHERE username=? AND usernumber=?; \u767b\u5f55\u540e\u590d\u5236 \u5728\u6267\u884c\u6b64\u4fee\u6539\u540e\uff0c\u60a8\u7684\u67e5\u8be2\u5e94\u8be5\u80fd\u591f\u6b63\u786e\u9009\u62e9\u6570\u636e\u5e93\u5e76\u6267\u884c\u67e5\u8be2\u3002\u8fd9\u5c06\u89e3\u51b3\u60a8\u7684er_bad_db_error\u95ee\u9898\uff0c\u8ba9\u60a8\u80fd\u591f\u6210\u529f\u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u3002 \u4ee5\u4e0a\u5c31\u662fMySQL\u51fa\u73b0\u201cER_BAD_DB_ERROR: Unknown database ‘my_db_01.getloonwh_users’\u201d\u5982\u4f55\u89e3\u51b3\uff1f\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-26548","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26548","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=26548"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/26548\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=26548"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=26548"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=26548"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}