{"id":93872,"date":"2024-10-19T17:37:18","date_gmt":"2024-10-19T09:37:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/93872\/"},"modified":"2024-10-19T17:37:18","modified_gmt":"2024-10-19T09:37:18","slug":"oracle-database-links%e5%af%a6%e7%8f%be%e6%96%b9%e6%b3%95%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/93872\/","title":{"rendered":"Oracle Database Links\u5be6\u73fe\u65b9\u6cd5\u89e3\u6790"},"content":{"rendered":"<h1 id=\"oracle-database-links%e5%af%a6%e7%8f%be%e6%96%b9%e6%b3%95%e8%a7%a3%e6%9e%90-yRQePnWbwh\">Oracle Database Links\u5be6\u73fe\u65b9\u6cd5\u89e3\u6790<\/h1>\n<p>\u5728\u73fe\u4ee3\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cOracle Database Links\uff08\u6578\u64da\u5eab\u93c8\u63a5\uff09\u662f\u4e00\u500b\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u5728\u4e0d\u540c\u7684Oracle\u6578\u64da\u5eab\u4e4b\u9593\u9032\u884c\u6578\u64da\u8a2a\u554f\u548c\u64cd\u4f5c\u3002\u9019\u7a2e\u6280\u8853\u7279\u5225\u9069\u5408\u65bc\u9700\u8981\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u548c\u6574\u5408\u6578\u64da\u7684\u61c9\u7528\u5834\u666f\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eOracle Database Links\u7684\u5be6\u73fe\u65b9\u6cd5\u53ca\u5176\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%aforacle-database-links%ef%bc%9f-yRQePnWbwh\">\u4ec0\u9ebc\u662fOracle Database Links\uff1f<\/h2>\n<p>Oracle Database Links\u662f\u4e00\u7a2e\u6578\u64da\u5eab\u5c0d\u8c61\uff0c\u5141\u8a31\u7528\u6236\u5728\u4e00\u500bOracle\u6578\u64da\u5eab\u4e2d\u8a2a\u554f\u53e6\u4e00\u500bOracle\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u901a\u904e\u4f7f\u7528\u6578\u64da\u5eab\u93c8\u63a5\uff0c\u7528\u6236\u53ef\u4ee5\u57f7\u884c\u67e5\u8a62\u3001\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u64cd\u4f5c\uff0c\u800c\u7121\u9700\u5c07\u6578\u64da\u8907\u88fd\u5230\u672c\u5730\u6578\u64da\u5eab\u3002<\/p>\n<h2 id=\"%e5%89%b5%e5%bb%badatabase-link%e7%9a%84%e6%ad%a5%e9%a9%9f-yRQePnWbwh\">\u5275\u5efaDatabase Link\u7684\u6b65\u9a5f<\/h2>\n<p>\u5275\u5efaOracle Database Link\u7684\u904e\u7a0b\u76f8\u5c0d\u7c21\u55ae\uff0c\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e8%aa%8d%e9%80%a3%e6%8e%a5%e4%bf%a1%e6%81%af-yRQePnWbwh\">1. \u78ba\u8a8d\u9023\u63a5\u4fe1\u606f<\/h3>\n<p>\u5728\u5275\u5efa\u6578\u64da\u5eab\u93c8\u63a5\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u8a8d\u76ee\u6a19\u6578\u64da\u5eab\u7684\u9023\u63a5\u4fe1\u606f\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u76ee\u6a19\u6578\u64da\u5eab\u7684\u540d\u7a31<\/li>\n<li>\u7528\u6236\u540d<\/li>\n<li>\u5bc6\u78bc<\/li>\n<li>\u4e3b\u6a5f\u540d\u6216IP\u5730\u5740<\/li>\n<li>\u7aef\u53e3\u865f<\/li>\n<\/ul>\n<h3 id=\"2-%e5%89%b5%e5%bb%badatabase-link-yRQePnWbwh\">2. \u5275\u5efaDatabase Link<\/h3>\n<p>\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u5275\u5efa\u6578\u64da\u5eab\u93c8\u63a5\uff1a<\/p>\n<pre><code>CREATE DATABASE LINK link_name\nCONNECT TO remote_user IDENTIFIED BY 'remote_password'\nUSING 'remote_database';<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c<code>link_name<\/code>\u662f\u60a8\u70ba\u6578\u64da\u5eab\u93c8\u63a5\u6307\u5b9a\u7684\u540d\u7a31\uff0c<code>remote_user<\/code>\u548c<code>remote_password<\/code>\u662f\u76ee\u6a19\u6578\u64da\u5eab\u7684\u7528\u6236\u540d\u548c\u5bc6\u78bc\uff0c<code>remote_database<\/code>\u662f\u76ee\u6a19\u6578\u64da\u5eab\u7684\u9023\u63a5\u5b57\u7b26\u4e32\u3002<\/p>\n<h3 id=\"3-%e6%b8%ac%e8%a9%a6database-link-yRQePnWbwh\">3. \u6e2c\u8a66Database Link<\/h3>\n<p>\u5275\u5efa\u5b8c\u6210\u5f8c\uff0c\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6e2c\u8a66\u6578\u64da\u5eab\u93c8\u63a5\u662f\u5426\u6b63\u5e38\u5de5\u4f5c\uff1a<\/p>\n<pre><code>SELECT * FROM table_name@link_name;<\/code><\/pre>\n<p>\u5982\u679c\u67e5\u8a62\u6210\u529f\u8fd4\u56de\u6578\u64da\uff0c\u5247\u8868\u793a\u6578\u64da\u5eab\u93c8\u63a5\u5df2\u6b63\u78ba\u914d\u7f6e\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8database-link%e7%9a%84%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-yRQePnWbwh\">\u4f7f\u7528Database Link\u7684\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528Oracle Database Links\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li><strong>\u6027\u80fd\u554f\u984c\uff1a<\/strong>\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u53ef\u80fd\u6703\u5c0e\u81f4\u6027\u80fd\u4e0b\u964d\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u91cf\u8f03\u5927\u6642\u3002\u56e0\u6b64\uff0c\u61c9\u8b39\u614e\u4f7f\u7528\u3002<\/li>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u78ba\u4fdd\u6578\u64da\u5eab\u93c8\u63a5\u7684\u7528\u6236\u64c1\u6709\u9069\u7576\u7684\u6b0a\u9650\uff0c\u4e26\u5b9a\u671f\u66f4\u6539\u5bc6\u78bc\u4ee5\u63d0\u9ad8\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u7248\u672c\u517c\u5bb9\u6027\uff1a<\/strong>\u4e0d\u540c\u7248\u672c\u7684Oracle\u6578\u64da\u5eab\u4e4b\u9593\u53ef\u80fd\u5b58\u5728\u517c\u5bb9\u6027\u554f\u984c\uff0c\u5efa\u8b70\u5728\u76f8\u540c\u7248\u672c\u7684\u6578\u64da\u5eab\u4e4b\u9593\u4f7f\u7528\u93c8\u63a5\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%af%a6%e9%9a%9b%e6%87%89%e7%94%a8%e6%a1%88%e4%be%8b-yRQePnWbwh\">\u5be6\u969b\u61c9\u7528\u6848\u4f8b<\/h2>\n<p>\u5047\u8a2d\u6709\u5169\u500bOracle\u6578\u64da\u5eab\uff1aDB1\u548cDB2\u3002DB1\u4e2d\u6709\u4e00\u500b\u7528\u6236\u8868\uff0c\u800cDB2\u4e2d\u6709\u4e00\u500b\u8a02\u55ae\u8868\u3002\u901a\u904e\u5275\u5efa\u4e00\u500b\u6578\u64da\u5eab\u93c8\u63a5\uff0cDB1\u7684\u7528\u6236\u53ef\u4ee5\u76f4\u63a5\u67e5\u8a62DB2\u4e2d\u7684\u8a02\u55ae\u6578\u64da\uff0c\u9019\u6a23\u53ef\u4ee5\u65b9\u4fbf\u5730\u9032\u884c\u6578\u64da\u5206\u6790\u548c\u5831\u544a\u751f\u6210\u3002<\/p>\n<pre><code>SELECT u.user_id, u.user_name, o.order_id\nFROM users u, orders@db2_link o\nWHERE u.user_id = o.user_id;<\/code><\/pre>\n<p>\u9019\u6a23\u7684\u67e5\u8a62\u53ef\u4ee5\u5e6b\u52a9\u4f01\u696d\u5feb\u901f\u7372\u53d6\u6240\u9700\u7684\u6578\u64da\uff0c\u5f9e\u800c\u63d0\u9ad8\u5de5\u4f5c\u6548\u7387\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-yRQePnWbwh\">\u7e3d\u7d50<\/h2>\n<p>Oracle Database Links\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5be6\u73fe\u4e0d\u540cOracle\u6578\u64da\u5eab\u4e4b\u9593\u7684\u6578\u64da\u5171\u4eab\u548c\u64cd\u4f5c\u3002\u901a\u904e\u6b63\u78ba\u7684\u914d\u7f6e\u548c\u4f7f\u7528\uff0c\u4f01\u696d\u53ef\u4ee5\u6709\u6548\u5730\u6574\u5408\u6578\u64da\u8cc7\u6e90\uff0c\u63d0\u5347\u696d\u52d9\u904b\u71df\u6548\u7387\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\u4f86\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u9700\u6c42\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22Oracle Database Links\u7684\u5be6\u73fe\u65b9\u6cd5\uff0c\u4e86\u89e3\u5982\u4f55\u9ad8\u6548\u9023\u63a5\u548c\u7ba1\u7406\u4e0d\u540c\u6578\u64da\u5eab\u4e4b\u9593\u7684\u6578\u64da\u4ea4\u4e92\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-93872","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93872","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=93872"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93872\/revisions"}],"predecessor-version":[{"id":93873,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/93872\/revisions\/93873"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=93872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=93872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=93872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}