{"id":162337,"date":"2024-11-04T14:13:22","date_gmt":"2024-11-04T06:13:22","guid":{"rendered":"https:\/\/server.hk\/cnblog\/162337\/"},"modified":"2024-11-04T14:13:23","modified_gmt":"2024-11-04T06:13:23","slug":"%e7%b0%a1%e5%96%ae%e4%bb%8b%e7%b4%b9%e4%b8%80%e4%b8%8b-oracle-%e5%89%b5%e5%bb%ba-database-link-%e7%9a%84%e5%85%a9%e7%a8%ae%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/162337\/","title":{"rendered":"\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b Oracle \u5275\u5efa Database Link \u7684\u5169\u7a2e\u65b9\u5f0f"},"content":{"rendered":"<h1 id=\"%e7%b0%a1%e5%96%ae%e4%bb%8b%e7%b4%b9%e4%b8%80%e4%b8%8b-oracle-%e5%89%b5%e5%bb%ba-database-link-%e7%9a%84%e5%85%a9%e7%a8%ae%e6%96%b9%e5%bc%8f-NWiEALXOCj\">\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b Oracle \u5275\u5efa Database Link \u7684\u5169\u7a2e\u65b9\u5f0f<\/h1>\n<p>\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0cDatabase Link\uff08\u6578\u64da\u5eab\u93c8\u63a5\uff09\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5141\u8a31\u7528\u6236\u5728\u4e00\u500b\u6578\u64da\u5eab\u4e2d\u8a2a\u554f\u53e6\u4e00\u500b\u6578\u64da\u5eab\u7684\u6578\u64da\u3002\u9019\u5c0d\u65bc\u5206\u4f48\u5f0f\u6578\u64da\u5eab\u7cfb\u7d71\u7279\u5225\u6709\u7528\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u7c21\u5316\u6578\u64da\u7684\u6574\u5408\u548c\u67e5\u8a62\u904e\u7a0b\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5169\u7a2e\u5275\u5efa Oracle Database Link \u7684\u65b9\u5f0f\uff0c\u5e6b\u52a9\u7528\u6236\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u9019\u4e00\u529f\u80fd\u3002<\/p>\n<h2 id=\"%e6%96%b9%e5%bc%8f%e4%b8%80%ef%bc%9a%e4%bd%bf%e7%94%a8-sql-%e8%aa%9e%e5%8f%a5%e5%89%b5%e5%bb%ba-database-link-NWiEALXOCj\">\u65b9\u5f0f\u4e00\uff1a\u4f7f\u7528 SQL \u8a9e\u53e5\u5275\u5efa Database Link<\/h2>\n<p>\u7b2c\u4e00\u7a2e\u5275\u5efa Database Link \u7684\u65b9\u5f0f\u662f\u901a\u904e SQL \u8a9e\u53e5\u3002\u9019\u7a2e\u65b9\u6cd5\u76f8\u5c0d\u7c21\u55ae\uff0c\u9069\u5408\u65bc\u5927\u591a\u6578\u7528\u6236\u3002\u4ee5\u4e0b\u662f\u5275\u5efa Database Link \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\u4f60\u70ba\u6578\u64da\u5eab\u93c8\u63a5\u6307\u5b9a\u7684\u540d\u7a31\uff0c<code>remote_user<\/code> \u548c <code>remote_password<\/code> \u662f\u7528\u65bc\u9023\u63a5\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\u6216\u9023\u63a5\u5b57\u7b26\u4e32\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b-NWiEALXOCj\">\u793a\u4f8b<\/h3>\n<p>\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba <code>HR<\/code> \u7684\u9060\u7a0b\u6578\u64da\u5eab\uff0c\u4e26\u4e14\u6211\u5011\u5e0c\u671b\u5275\u5efa\u4e00\u500b\u540d\u70ba <code>HR_LINK<\/code> \u7684\u6578\u64da\u5eab\u93c8\u63a5\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\uff1a<\/p>\n<pre><code>CREATE DATABASE LINK HR_LINK\nCONNECT TO hr_user IDENTIFIED BY hr_password\nUSING 'HR';<\/code><\/pre>\n<p>\u5275\u5efa\u5b8c\u6210\u5f8c\uff0c\u7528\u6236\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u67e5\u8a62\u4f86\u8a2a\u554f\u9060\u7a0b\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>SELECT * FROM employees@HR_LINK;<\/code><\/pre>\n<h2 id=\"%e6%96%b9%e5%bc%8f%e4%ba%8c%ef%bc%9a%e4%bd%bf%e7%94%a8-oracle-net-services-%e9%85%8d%e7%bd%ae%e5%89%b5%e5%bb%ba-database-link-NWiEALXOCj\">\u65b9\u5f0f\u4e8c\uff1a\u4f7f\u7528 Oracle Net Services \u914d\u7f6e\u5275\u5efa Database Link<\/h2>\n<p>\u7b2c\u4e8c\u7a2e\u65b9\u5f0f\u662f\u901a\u904e Oracle Net Services \u914d\u7f6e\u4f86\u5275\u5efa Database Link\u3002\u9019\u7a2e\u65b9\u6cd5\u901a\u5e38\u7528\u65bc\u9700\u8981\u66f4\u9ad8\u7d1a\u914d\u7f6e\u7684\u60c5\u6cc1\uff0c\u4f8b\u5982\u5728\u591a\u500b\u6578\u64da\u5eab\u4e4b\u9593\u9032\u884c\u8907\u96dc\u7684\u9023\u63a5\u3002<\/p>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u5728 <code>tnsnames.ora<\/code> \u6587\u4ef6\u4e2d\u914d\u7f6e\u9060\u7a0b\u6578\u64da\u5eab\u7684\u9023\u63a5\u4fe1\u606f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\u914d\u7f6e\uff1a<\/p>\n<pre><code>HR =\n  (DESCRIPTION =\n    (ADDRESS = (PROTOCOL = TCP)(HOST = remote_host)(PORT = 1521))\n    (CONNECT_DATA =\n      (SERVER = DEDICATED)\n      (SERVICE_NAME = hr_service)\n    )\n  );<\/code><\/pre>\n<p>\u914d\u7f6e\u5b8c\u6210\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u5275\u5efa Database Link\uff1a<\/p>\n<pre><code>CREATE DATABASE LINK HR_LINK\nCONNECT TO hr_user IDENTIFIED BY hr_password\nUSING 'HR';<\/code><\/pre>\n<p>\u9019\u6a23\uff0c\u60a8\u5c31\u53ef\u4ee5\u901a\u904e <code>HR_LINK<\/code> \u4f86\u8a2a\u554f\u9060\u7a0b\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff0c\u8207\u7b2c\u4e00\u7a2e\u65b9\u5f0f\u76f8\u540c\u3002<\/p>\n<h3 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-NWiEALXOCj\">\u6ce8\u610f\u4e8b\u9805<\/h3>\n<ul>\n<li>\u5728\u5275\u5efa Database Link \u6642\uff0c\u78ba\u4fdd\u9060\u7a0b\u6578\u64da\u5eab\u7684\u7528\u6236\u5177\u6709\u8db3\u5920\u7684\u6b0a\u9650\u4f86\u8a2a\u554f\u6240\u9700\u7684\u6578\u64da\u3002<\/li>\n<li>\u5728\u4f7f\u7528 Database Link \u9032\u884c\u67e5\u8a62\u6642\uff0c\u6027\u80fd\u53ef\u80fd\u6703\u53d7\u5230\u5f71\u97ff\uff0c\u7279\u5225\u662f\u5728\u7db2\u7d61\u5ef6\u9072\u8f03\u9ad8\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u7dad\u8b77 Database Link\uff0c\u4ee5\u78ba\u4fdd\u5176\u6b63\u5e38\u904b\u884c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-NWiEALXOCj\">\u7e3d\u7d50<\/h2>\n<p>Oracle \u63d0\u4f9b\u4e86\u5169\u7a2e\u4e3b\u8981\u65b9\u5f0f\u4f86\u5275\u5efa Database Link\uff0c\u5206\u5225\u662f\u4f7f\u7528 SQL \u8a9e\u53e5\u548c\u901a\u904e Oracle Net Services \u914d\u7f6e\u3002\u9019\u4e9b\u65b9\u6cd5\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u65b9\u4fbf\u5730\u8a2a\u554f\u548c\u6574\u5408\u4f86\u81ea\u4e0d\u540c\u6578\u64da\u5eab\u7684\u6578\u64da\u3002\u7121\u8ad6\u662f\u7c21\u55ae\u7684\u67e5\u8a62\u9084\u662f\u8907\u96dc\u7684\u6578\u64da\u6574\u5408\uff0cDatabase Link \u90fd\u662f Oracle \u6578\u64da\u5eab\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u529f\u80fd\u4e4b\u4e00\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc <a href=\"https:\/\/server.hk\">\u9999\u6e2f VPS<\/a> \u6216\u5176\u4ed6\u76f8\u95dc\u670d\u52d9\u611f\u8208\u8da3\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7c21\u55ae\u4ecb\u7d39 Oracle \u5275\u5efa Database Link \u7684\u5169\u7a2e\u65b9\u5f0f\uff0c\u5e6b\u52a9\u7528\u6236\u5feb\u901f\u9023\u63a5\u4e0d\u540c\u6578\u64da\u5eab\uff0c\u63d0\u5347\u6578\u64da\u7ba1\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-162337","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162337","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=162337"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162337\/revisions"}],"predecessor-version":[{"id":162338,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/162337\/revisions\/162338"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=162337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=162337"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=162337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}