{"id":94634,"date":"2024-10-19T19:53:18","date_gmt":"2024-10-19T11:53:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/94634\/"},"modified":"2024-10-19T19:53:19","modified_gmt":"2024-10-19T11:53:19","slug":"oracle-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8f%88%e6%8e%a5%e7%9a%84%e5%af%a6%e4%be%8b%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/94634\/","title":{"rendered":"Oracle \u6578\u64da\u5eab\u93c8\u63a5\u7684\u5be6\u4f8b\u89e3\u6790"},"content":{"rendered":"<h1 id=\"oracle-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8f%88%e6%8e%a5%e7%9a%84%e5%af%a6%e4%be%8b%e8%a7%a3%e6%9e%90-bdfxUdDnVg\">Oracle \u6578\u64da\u5eab\u93c8\u63a5\u7684\u5be6\u4f8b\u89e3\u6790<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0c\u6578\u64da\u5eab\u7684\u7ba1\u7406\u548c\u64cd\u4f5c\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002Oracle \u6578\u64da\u5eab\u4f5c\u70ba\u4e00\u500b\u5f37\u5927\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u4f01\u696d\u74b0\u5883\u4e2d\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e Oracle \u6578\u64da\u5eab\u93c8\u63a5\u7684\u6982\u5ff5\u53ca\u5176\u5be6\u4f8b\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u4f7f\u7528\u9019\u4e00\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af-oracle-%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8f%88%e6%8e%a5%ef%bc%9f-bdfxUdDnVg\">\u4ec0\u9ebc\u662f Oracle \u6578\u64da\u5eab\u93c8\u63a5\uff1f<\/h2>\n<p>Oracle \u6578\u64da\u5eab\u93c8\u63a5\uff08Database Link\uff09\u662f\u4e00\u7a2e\u5141\u8a31\u7528\u6236\u5728\u4e00\u500b Oracle \u6578\u64da\u5eab\u4e2d\u8a2a\u554f\u53e6\u4e00\u500b Oracle \u6578\u64da\u5eab\u7684\u6a5f\u5236\u3002\u9019\u7a2e\u529f\u80fd\u4f7f\u5f97\u8de8\u6578\u64da\u5eab\u7684\u67e5\u8a62\u548c\u64cd\u4f5c\u8b8a\u5f97\u66f4\u52a0\u65b9\u4fbf\uff0c\u7279\u5225\u662f\u5728\u5206\u4f48\u5f0f\u6578\u64da\u5eab\u74b0\u5883\u4e2d\u3002\u901a\u904e\u6578\u64da\u5eab\u93c8\u63a5\uff0c\u7528\u6236\u53ef\u4ee5\u5728\u672c\u5730\u6578\u64da\u5eab\u4e2d\u57f7\u884c SQL \u67e5\u8a62\uff0c\u4e26\u76f4\u63a5\u8a2a\u554f\u9060\u7a0b\u6578\u64da\u5eab\u4e2d\u7684\u8868\u548c\u8996\u5716\u3002<\/p>\n<h2 id=\"%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8f%88%e6%8e%a5-bdfxUdDnVg\">\u5275\u5efa\u6578\u64da\u5eab\u93c8\u63a5<\/h2>\n<p>\u8981\u5275\u5efa\u4e00\u500b\u6578\u64da\u5eab\u93c8\u63a5\uff0c\u9996\u5148\u9700\u8981\u5177\u5099\u76f8\u61c9\u7684\u6b0a\u9650\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u6578\u64da\u5eab\u93c8\u63a5\u7684\u57fa\u672c\u8a9e\u6cd5\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\u9060\u7a0b\u6578\u64da\u5eab\u7684\u7528\u6236\u540d\u548c\u5bc6\u78bc\uff0c\u800c <code>remote_database<\/code> \u5247\u662f\u9060\u7a0b\u6578\u64da\u5eab\u7684 TNS \u540d\u7a31\u3002<\/p>\n<h3 id=\"%e5%af%a6%e4%be%8b%ef%bc%9a%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8f%88%e6%8e%a5-bdfxUdDnVg\">\u5be6\u4f8b\uff1a\u5275\u5efa\u6578\u64da\u5eab\u93c8\u63a5<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u5169\u500b Oracle \u6578\u64da\u5eab\uff1a<code>DB1<\/code> \u548c <code>DB2<\/code>\u3002\u6211\u5011\u5e0c\u671b\u5f9e <code>DB1<\/code> \u8a2a\u554f <code>DB2<\/code> \u4e2d\u7684\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u6578\u64da\u5eab\u93c8\u63a5\u7684\u5177\u9ad4\u6b65\u9a5f\uff1a<\/p>\n<pre><code>CREATE DATABASE LINK db2_link\nCONNECT TO db2_user IDENTIFIED BY 'db2_password'\nUSING 'DB2';<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u6211\u5011\u5c31\u6210\u529f\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>db2_link<\/code> \u7684\u6578\u64da\u5eab\u93c8\u63a5\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e9%8f%88%e6%8e%a5%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-bdfxUdDnVg\">\u4f7f\u7528\u6578\u64da\u5eab\u93c8\u63a5\u67e5\u8a62\u6578\u64da<\/h2>\n<p>\u5275\u5efa\u6578\u64da\u5eab\u93c8\u63a5\u5f8c\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528\u5b83\u4f86\u67e5\u8a62\u9060\u7a0b\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u67e5\u8a62\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT * FROM employees@db2_link;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5f9e <code>DB2<\/code> \u7684 <code>employees<\/code> \u8868\u4e2d\u6aa2\u7d22\u6578\u64da\u3002\u6ce8\u610f\uff0c\u8868\u540d\u5f8c\u9762\u52a0\u4e0a\u4e86 <code>@db2_link<\/code>\uff0c\u9019\u8868\u793a\u6211\u5011\u8981\u5f9e\u9060\u7a0b\u6578\u64da\u5eab\u4e2d\u67e5\u8a62\u3002<\/p>\n<h3 id=\"%e6%9b%b4%e6%96%b0%e9%81%a0%e7%a8%8b%e6%95%b8%e6%93%9a-bdfxUdDnVg\">\u66f4\u65b0\u9060\u7a0b\u6578\u64da<\/h3>\n<p>\u9664\u4e86\u67e5\u8a62\uff0c\u6578\u64da\u5eab\u93c8\u63a5\u9084\u53ef\u4ee5\u7528\u65bc\u66f4\u65b0\u9060\u7a0b\u6578\u64da\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u8a9e\u53e5\u5c07\u66f4\u65b0 <code>DB2<\/code> \u4e2d <code>employees<\/code> \u8868\u7684\u67d0\u4e00\u884c\uff1a<\/p>\n<pre><code>UPDATE employees@db2_link\nSET salary = salary * 1.1\nWHERE employee_id = 1001;<\/code><\/pre>\n<p>\u9019\u689d\u8a9e\u53e5\u5c07 <code>employee_id<\/code> \u70ba 1001 \u7684\u54e1\u5de5\u85aa\u6c34\u63d0\u9ad8 10%\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-bdfxUdDnVg\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u4f7f\u7528\u6578\u64da\u5eab\u93c8\u63a5\u6642\uff0c\u6709\u5e7e\u9ede\u9700\u8981\u6ce8\u610f\uff1a<\/p>\n<ul>\n<li>\u6027\u80fd\uff1a\u8de8\u6578\u64da\u5eab\u67e5\u8a62\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u6578\u64da\u91cf\u8f03\u5927\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<li>\u5b89\u5168\u6027\uff1a\u78ba\u4fdd\u9060\u7a0b\u6578\u64da\u5eab\u7684\u5b89\u5168\u6027\uff0c\u907f\u514d\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002<\/li>\n<li>\u932f\u8aa4\u8655\u7406\uff1a\u5728\u57f7\u884c\u8de8\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u61c9\u8003\u616e\u5230\u53ef\u80fd\u51fa\u73fe\u7684\u932f\u8aa4\uff0c\u4e26\u9032\u884c\u76f8\u61c9\u7684\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-bdfxUdDnVg\">\u7e3d\u7d50<\/h2>\n<p>Oracle \u6578\u64da\u5eab\u93c8\u63a5\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u7528\u6236\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u4e4b\u9593\u9032\u884c\u9ad8\u6548\u7684\u6578\u64da\u8a2a\u554f\u548c\u64cd\u4f5c\u3002\u901a\u904e\u672c\u6587\u7684\u4ecb\u7d39\uff0c\u8b80\u8005\u61c9\u8a72\u80fd\u5920\u7406\u89e3\u5982\u4f55\u5275\u5efa\u548c\u4f7f\u7528\u6578\u64da\u5eab\u93c8\u63a5\uff0c\u4e26\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u9748\u6d3b\u904b\u7528\u9019\u4e00\u529f\u80fd\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u74b0\u5883\u4e2d\u4f7f\u7528 <a href=\"https:\/\/server.hk\">VPS<\/a> \u4f86\u90e8\u7f72 Oracle \u6578\u64da\u5eab\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u89e3\u6790Oracle\u6578\u64da\u5eab\u93c8\u63a5\u7684\u5be6\u4f8b\uff0c\u4e86\u89e3\u5982\u4f55\u6709\u6548\u9023\u63a5\u548c\u7ba1\u7406\u591a\u500b\u6578\u64da\u5eab\uff0c\u63d0\u9ad8\u6578\u64da\u8655\u7406\u6548\u7387\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-94634","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94634","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=94634"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94634\/revisions"}],"predecessor-version":[{"id":94635,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/94634\/revisions\/94635"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=94634"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=94634"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=94634"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}