{"id":194697,"date":"2024-11-13T08:49:19","date_gmt":"2024-11-13T00:49:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/194697\/"},"modified":"2024-11-13T08:49:20","modified_gmt":"2024-11-13T00:49:20","slug":"%e7%ae%a1%e7%90%86%e5%93%a1%e4%b8%8d%e8%83%bd%e5%88%aa%e9%99%a4%e5%85%b6%e4%bb%96%e7%94%a8%e6%88%b7%e5%bb%ba%e7%ab%8b%e7%9a%84db-link%e7%9a%84%e8%a7%a3%e6%b1%ba","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/194697\/","title":{"rendered":"\u7ba1\u7406\u54e1\u4e0d\u80fd\u522a\u9664\u5176\u4ed6\u7528\u6237\u5efa\u7acb\u7684DB Link\u7684\u89e3\u6c7a"},"content":{"rendered":"<h1 id=\"%e7%ae%a1%e7%90%86%e5%93%a1%e4%b8%8d%e8%83%bd%e5%88%aa%e9%99%a4%e5%85%b6%e4%bb%96%e7%94%a8%e6%88%b7%e5%bb%ba%e7%ab%8b%e7%9a%84db-link%e7%9a%84%e8%a7%a3%e6%b1%ba-yFvPtUICNR\">\u7ba1\u7406\u54e1\u4e0d\u80fd\u522a\u9664\u5176\u4ed6\u7528\u6237\u5efa\u7acb\u7684DB Link\u7684\u89e3\u6c7a<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cDB Link\uff08\u6578\u64da\u5eab\u93c8\u63a5\uff09\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u4e4b\u9593\u9032\u884c\u6578\u64da\u4ea4\u4e92\u3002\u7136\u800c\uff0c\u7576\u7ba1\u7406\u54e1\u9700\u8981\u522a\u9664\u5176\u4ed6\u7528\u6236\u5275\u5efa\u7684DB Link\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u6b0a\u9650\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u4e00\u554f\u984c\u7684\u6839\u6e90\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n<h2 id=\"db-link%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-yFvPtUICNR\">DB Link\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>DB Link\u662f\u4e00\u7a2e\u6578\u64da\u5eab\u5c0d\u8c61\uff0c\u5141\u8a31\u7528\u6236\u901a\u904e\u4e00\u500b\u6578\u64da\u5eab\u8a2a\u554f\u53e6\u4e00\u500b\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u9019\u5728\u5206\u5e03\u5f0f\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\u5c24\u70ba\u91cd\u8981\uff0c\u56e0\u70ba\u5b83\u4f7f\u5f97\u6578\u64da\u7684\u6574\u5408\u548c\u67e5\u8a62\u8b8a\u5f97\u66f4\u52a0\u65b9\u4fbf\u3002DB Link\u901a\u5e38\u7531\u7528\u6236\u5275\u5efa\uff0c\u4e26\u4e14\u8207\u7528\u6236\u7684\u6b0a\u9650\u5bc6\u5207\u76f8\u95dc\u3002<\/p>\n<h2 id=\"%e7%ae%a1%e7%90%86%e5%93%a1%e5%88%aa%e9%99%a4db-link%e7%9a%84%e6%8c%91%e6%88%b0-yFvPtUICNR\">\u7ba1\u7406\u54e1\u522a\u9664DB Link\u7684\u6311\u6230<\/h2>\n<p>\u5728\u8a31\u591a\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\uff0c\u7ba1\u7406\u54e1\u64c1\u6709\u9ad8\u7d1a\u5225\u7684\u6b0a\u9650\uff0c\u4f46\u9019\u4e26\u4e0d\u610f\u5473\u8457\u4ed6\u5011\u53ef\u4ee5\u96a8\u610f\u522a\u9664\u6240\u6709\u5c0d\u8c61\u3002\u7576\u7ba1\u7406\u54e1\u5617\u8a66\u522a\u9664\u5176\u4ed6\u7528\u6236\u5275\u5efa\u7684DB Link\u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u5e7e\u500b\u6311\u6230\uff1a<\/p>\n<ul>\n<li><strong>\u6b0a\u9650\u9650\u5236\uff1a<\/strong>\u6578\u64da\u5eab\u7cfb\u7d71\u901a\u5e38\u6703\u8a2d\u7f6e\u6b0a\u9650\uff0c\u4ee5\u4fdd\u8b77\u7528\u6236\u7684\u6578\u64da\u548c\u5c0d\u8c61\u3002\u5373\u4f7f\u662f\u7ba1\u7406\u54e1\uff0c\u4e5f\u53ef\u80fd\u7121\u6cd5\u522a\u9664\u5176\u4ed6\u7528\u6236\u7684DB Link\u3002<\/li>\n<li><strong>\u4f9d\u8cf4\u95dc\u4fc2\uff1a<\/strong>\u5982\u679cDB Link\u88ab\u5176\u4ed6\u5c0d\u8c61\uff08\u5982\u8996\u5716\u6216\u5b58\u5132\u904e\u7a0b\uff09\u6240\u4f9d\u8cf4\uff0c\u5247\u522a\u9664\u64cd\u4f5c\u53ef\u80fd\u6703\u88ab\u963b\u6b62\u3002<\/li>\n<li><strong>\u6578\u64da\u5b8c\u6574\u6027\uff1a<\/strong>\u70ba\u4e86\u4fdd\u8b77\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u6578\u64da\u5eab\u7cfb\u7d71\u53ef\u80fd\u6703\u9650\u5236\u67d0\u4e9b\u64cd\u4f5c\uff0c\u7279\u5225\u662f\u6d89\u53ca\u5230\u8de8\u6578\u64da\u5eab\u7684\u93c8\u63a5\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-yFvPtUICNR\">\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7a\u7ba1\u7406\u54e1\u7121\u6cd5\u522a\u9664\u5176\u4ed6\u7528\u6236\u5275\u5efa\u7684DB Link\u7684\u554f\u984c\uff0c\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%ac%8a%e9%99%90%e8%a8%ad%e7%bd%ae-yFvPtUICNR\">1. \u6aa2\u67e5\u6b0a\u9650\u8a2d\u7f6e<\/h3>\n<p>\u9996\u5148\uff0c\u7ba1\u7406\u54e1\u61c9\u8a72\u6aa2\u67e5\u81ea\u5df1\u7684\u6b0a\u9650\u8a2d\u7f6e\u3002\u78ba\u4fdd\u7ba1\u7406\u54e1\u5e33\u6236\u64c1\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u522a\u9664DB Link\u3002\u5728\u67d0\u4e9b\u6578\u64da\u5eab\u7cfb\u7d71\u4e2d\uff0c\u53ef\u80fd\u9700\u8981\u7279\u5b9a\u7684\u89d2\u8272\u6216\u6b0a\u9650\u4f86\u57f7\u884c\u6b64\u64cd\u4f5c\u3002<\/p>\n<pre><code>-- \u6aa2\u67e5\u7576\u524d\u7528\u6236\u7684\u6b0a\u9650\nSELECT * FROM user_role WHERE username = 'admin';<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8drop%e5%91%bd%e4%bb%a4-yFvPtUICNR\">2. \u4f7f\u7528DROP\u547d\u4ee4<\/h3>\n<p>\u5982\u679c\u7ba1\u7406\u54e1\u64c1\u6709\u8db3\u5920\u7684\u6b0a\u9650\uff0c\u53ef\u4ee5\u4f7f\u7528DROP\u547d\u4ee4\u4f86\u522a\u9664DB Link\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>DROP DATABASE LINK link_name;<\/code><\/pre>\n<p>\u5728\u57f7\u884c\u6b64\u547d\u4ee4\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u78ba\u8a8d\u8a72DB Link\u662f\u5426\u88ab\u5176\u4ed6\u5c0d\u8c61\u6240\u4f9d\u8cf4\u3002<\/p>\n<h3 id=\"3-%e8%a7%a3%e9%99%a4%e4%be%9d%e8%b3%b4%e9%97%9c%e4%bf%82-yFvPtUICNR\">3. \u89e3\u9664\u4f9d\u8cf4\u95dc\u4fc2<\/h3>\n<p>\u5982\u679cDB Link\u88ab\u5176\u4ed6\u5c0d\u8c61\u6240\u4f9d\u8cf4\uff0c\u7ba1\u7406\u54e1\u9700\u8981\u5148\u89e3\u9664\u9019\u4e9b\u4f9d\u8cf4\u95dc\u4fc2\u3002\u53ef\u4ee5\u901a\u904e\u67e5\u8a62\u4f9d\u8cf4\u95dc\u4fc2\u4f86\u78ba\u5b9a\u54ea\u4e9b\u5c0d\u8c61\u9700\u8981\u88ab\u4fee\u6539\u6216\u522a\u9664\u3002<\/p>\n<pre><code>-- \u67e5\u8a62\u4f9d\u8cf4\u95dc\u4fc2\nSELECT * FROM all_dependencies WHERE referenced_name = 'link_name';<\/code><\/pre>\n<h3 id=\"4-%e8%81%af%e7%b9%ab%e6%95%b8%e6%93%9a%e5%ba%ab%e4%be%9b%e6%87%89%e5%95%86-yFvPtUICNR\">4. \u806f\u7e6b\u6578\u64da\u5eab\u4f9b\u61c9\u5546<\/h3>\n<p>\u5982\u679c\u4ee5\u4e0a\u65b9\u6cd5\u7121\u6cd5\u89e3\u6c7a\u554f\u984c\uff0c\u5efa\u8b70\u806f\u7e6b\u6578\u64da\u5eab\u4f9b\u61c9\u5546\u7684\u6280\u8853\u652f\u6301\u3002\u4ed6\u5011\u53ef\u4ee5\u63d0\u4f9b\u66f4\u5177\u9ad4\u7684\u6307\u5c0e\u548c\u5e6b\u52a9\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-yFvPtUICNR\">\u7e3d\u7d50<\/h2>\n<p>\u7ba1\u7406\u54e1\u5728\u522a\u9664\u5176\u4ed6\u7528\u6236\u5275\u5efa\u7684DB Link\u6642\uff0c\u53ef\u80fd\u6703\u9762\u81e8\u6b0a\u9650\u9650\u5236\u548c\u4f9d\u8cf4\u95dc\u4fc2\u7b49\u6311\u6230\u3002\u901a\u904e\u6aa2\u67e5\u6b0a\u9650\u3001\u4f7f\u7528\u6b63\u78ba\u7684SQL\u547d\u4ee4\u3001\u89e3\u9664\u4f9d\u8cf4\u95dc\u4fc2\u4ee5\u53ca\u5fc5\u8981\u6642\u806f\u7e6b\u6280\u8853\u652f\u6301\uff0c\u7ba1\u7406\u54e1\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u5b89\u5168\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7a\u7ba1\u7406\u54e1\u7121\u6cd5\u522a\u9664\u5176\u4ed6\u7528\u6237\u5efa\u7acb\u7684DB Link\u7684\u554f\u984c\uff0c\u63d0\u4f9b\u6709\u6548\u7684\u6b65\u9a5f\u548c\u5efa\u8b70\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7ba1\u7406\u7684\u9806\u5229\u9032\u884c\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-194697","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194697","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=194697"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194697\/revisions"}],"predecessor-version":[{"id":194698,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/194697\/revisions\/194698"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=194697"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=194697"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=194697"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}