{"id":195411,"date":"2024-11-13T14:47:24","date_gmt":"2024-11-13T06:47:24","guid":{"rendered":"https:\/\/server.hk\/cnblog\/195411\/"},"modified":"2024-11-13T14:47:24","modified_gmt":"2024-11-13T06:47:24","slug":"%e6%9c%89%e9%97%9cdb2%e5%89%b5%e5%bb%ba%e8%b7%a8%e5%ba%ab%e8%a6%96%e5%9c%96%e7%9a%84%e6%93%8d%e4%bd%9c%e6%96%b9%e6%a1%88","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/195411\/","title":{"rendered":"\u6709\u95dcDB2\u5275\u5efa\u8de8\u5eab\u8996\u5716\u7684\u64cd\u4f5c\u65b9\u6848"},"content":{"rendered":"<h1 id=\"%e6%9c%89%e9%97%9cdb2%e5%89%b5%e5%bb%ba%e8%b7%a8%e5%ba%ab%e8%a6%96%e5%9c%96%e7%9a%84%e6%93%8d%e4%bd%9c%e6%96%b9%e6%a1%88-GJVBSICWKf\">\u6709\u95dcDB2\u5275\u5efa\u8de8\u5eab\u8996\u5716\u7684\u64cd\u4f5c\u65b9\u6848<\/h1>\n<p>\u5728\u73fe\u4ee3\u6578\u64da\u7ba1\u7406\u4e2d\uff0c\u8de8\u5eab\u8996\u5716\u7684\u4f7f\u7528\u8d8a\u4f86\u8d8a\u666e\u904d\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u4f01\u696d\u4e2d\uff0c\u6578\u64da\u5206\u6563\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u4e2d\u3002IBM\u7684DB2\u6578\u64da\u5eab\u7cfb\u7d71\u63d0\u4f9b\u4e86\u5f37\u5927\u7684\u529f\u80fd\u4f86\u5275\u5efa\u548c\u7ba1\u7406\u8de8\u5eab\u8996\u5716\uff0c\u9019\u4f7f\u5f97\u7528\u6236\u80fd\u5920\u5728\u4e0d\u540c\u7684\u6578\u64da\u5eab\u4e4b\u9593\u9032\u884c\u67e5\u8a62\u548c\u6578\u64da\u6574\u5408\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728DB2\u4e2d\u5275\u5efa\u8de8\u5eab\u8996\u5716\u7684\u64cd\u4f5c\u65b9\u6848\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e8%b7%a8%e5%ba%ab%e8%a6%96%e5%9c%96%ef%bc%9f-GJVBSICWKf\">\u4ec0\u9ebc\u662f\u8de8\u5eab\u8996\u5716\uff1f<\/h2>\n<p>\u8de8\u5eab\u8996\u5716\u662f\u6307\u4e00\u7a2e\u8996\u5716\uff0c\u5b83\u53ef\u4ee5\u5f9e\u591a\u500b\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6578\u64da\u4e26\u5c07\u5176\u6574\u5408\u5728\u4e00\u8d77\u3002\u9019\u7a2e\u8996\u5716\u5141\u8a31\u7528\u6236\u5728\u4e0d\u9700\u8981\u5c07\u6578\u64da\u8907\u88fd\u5230\u55ae\u4e00\u6578\u64da\u5eab\u7684\u60c5\u6cc1\u4e0b\uff0c\u9032\u884c\u67e5\u8a62\u548c\u5206\u6790\u3002DB2\u652f\u6301\u5275\u5efa\u9019\u6a23\u7684\u8996\u5716\uff0c\u5f9e\u800c\u63d0\u9ad8\u4e86\u6578\u64da\u7684\u53ef\u8a2a\u554f\u6027\u548c\u9748\u6d3b\u6027\u3002<\/p>\n<h2 id=\"%e5%89%b5%e5%bb%ba%e8%b7%a8%e5%ba%ab%e8%a6%96%e5%9c%96%e7%9a%84%e6%ad%a5%e9%a9%9f-GJVBSICWKf\">\u5275\u5efa\u8de8\u5eab\u8996\u5716\u7684\u6b65\u9a5f<\/h2>\n<p>\u5728DB2\u4e2d\u5275\u5efa\u8de8\u5eab\u8996\u5716\u7684\u904e\u7a0b\u53ef\u4ee5\u5206\u70ba\u5e7e\u500b\u4e3b\u8981\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e4%bf%9d%e6%95%b8%e6%93%9a%e5%ba%ab%e9%80%a3%e6%8e%a5-GJVBSICWKf\">1. \u78ba\u4fdd\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u80fd\u5920\u9023\u63a5\u5230\u6240\u6709\u76f8\u95dc\u7684\u6578\u64da\u5eab\u3002\u9019\u901a\u5e38\u6d89\u53ca\u5230\u914d\u7f6e\u6578\u64da\u5eab\u7684\u9023\u63a5\u53c3\u6578\uff0c\u4f8b\u5982\u4e3b\u6a5f\u540d\u3001\u7aef\u53e3\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002<\/p>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e8%81%af%e6%8e%a5-GJVBSICWKf\">2. \u5275\u5efa\u806f\u63a5<\/h3>\n<p>\u5728DB2\u4e2d\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u201cCREATE DATABASE LINK\u201d\u8a9e\u53e5\u4f86\u5275\u5efa\u6578\u64da\u5eab\u4e4b\u9593\u7684\u806f\u63a5\u3002\u9019\u6a23\u53ef\u4ee5\u8b93DB2\u77e5\u9053\u5982\u4f55\u8a2a\u554f\u5176\u4ed6\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\u3002<\/p>\n<pre><code>CREATE DATABASE LINK my_link\n   CONNECT TO 'remote_db'\n   IDENTIFIED BY 'password';<\/code><\/pre>\n<h3 id=\"3-%e5%89%b5%e5%bb%ba%e8%a6%96%e5%9c%96-GJVBSICWKf\">3. \u5275\u5efa\u8996\u5716<\/h3>\n<p>\u4e00\u65e6\u5efa\u7acb\u4e86\u806f\u63a5\uff0c\u60a8\u5c31\u53ef\u4ee5\u4f7f\u7528\u201cCREATE VIEW\u201d\u8a9e\u53e5\u4f86\u5275\u5efa\u8de8\u5eab\u8996\u5716\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u5f9e\u5169\u500b\u4e0d\u540c\u7684\u6578\u64da\u5eab\u4e2d\u63d0\u53d6\u6578\u64da\u4e26\u5275\u5efa\u8996\u5716\uff1a<\/p>\n<pre><code>CREATE VIEW my_cross_db_view AS\n   SELECT a.column1, b.column2\n   FROM local_table a\n   JOIN remote_table@my_link b ON a.id = b.id;<\/code><\/pre>\n<h3 id=\"4-%e6%b8%ac%e8%a9%a6%e8%a6%96%e5%9c%96-GJVBSICWKf\">4. \u6e2c\u8a66\u8996\u5716<\/h3>\n<p>\u5275\u5efa\u8996\u5716\u5f8c\uff0c\u60a8\u61c9\u8a72\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u5176\u6b63\u5e38\u904b\u884c\u3002\u53ef\u4ee5\u4f7f\u7528\u7c21\u55ae\u7684SELECT\u8a9e\u53e5\u4f86\u6aa2\u67e5\u8996\u5716\u7684\u6578\u64da\uff1a<\/p>\n<pre><code>SELECT * FROM my_cross_db_view;<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-GJVBSICWKf\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<p>\u5728\u5275\u5efa\u8de8\u5eab\u8996\u5716\u6642\uff0c\u6709\u5e7e\u500b\u6ce8\u610f\u4e8b\u9805\u9700\u8981\u8003\u616e\uff1a<\/p>\n<ul>\n<li>\u6027\u80fd\uff1a\u8de8\u5eab\u67e5\u8a62\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u7279\u5225\u662f\u7576\u6578\u64da\u91cf\u5f88\u5927\u6642\u3002\u56e0\u6b64\uff0c\u61c9\u8b39\u614e\u8a2d\u8a08\u67e5\u8a62\u3002<\/li>\n<li>\u5b89\u5168\u6027\uff1a\u78ba\u4fdd\u9069\u7576\u7684\u6b0a\u9650\u8a2d\u7f6e\uff0c\u4ee5\u9632\u6b62\u672a\u7d93\u6388\u6b0a\u7684\u8a2a\u554f\u3002<\/li>\n<li>\u6578\u64da\u4e00\u81f4\u6027\uff1a\u5728\u4e0d\u540c\u6578\u64da\u5eab\u4e4b\u9593\u9032\u884c\u67e5\u8a62\u6642\uff0c\u9700\u8003\u616e\u6578\u64da\u7684\u4e00\u81f4\u6027\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-GJVBSICWKf\">\u7d50\u8ad6<\/h2>\n<p>\u5728DB2\u4e2d\u5275\u5efa\u8de8\u5eab\u8996\u5716\u662f\u4e00\u500b\u5f37\u5927\u7684\u529f\u80fd\uff0c\u53ef\u4ee5\u5e6b\u52a9\u4f01\u696d\u6574\u5408\u4f86\u81ea\u4e0d\u540c\u6578\u64da\u5eab\u7684\u6578\u64da\u3002\u901a\u904e\u6b63\u78ba\u7684\u914d\u7f6e\u548c\u8a2d\u8a08\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u5229\u7528\u9019\u4e00\u529f\u80fd\u4f86\u63d0\u9ad8\u6578\u64da\u7684\u53ef\u8a2a\u554f\u6027\u548c\u5206\u6790\u80fd\u529b\u3002\u5c0d\u65bc\u9700\u8981\u5728\u591a\u500b\u6578\u64da\u5eab\u4e4b\u9593\u9032\u884c\u64cd\u4f5c\u7684\u7528\u6236\u4f86\u8aaa\uff0c\u638c\u63e1\u9019\u4e00\u6280\u8853\u5c07\u662f\u975e\u5e38\u6709\u50f9\u503c\u7684\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5c0d\u65bc\u5982\u4f55\u5728DB2\u4e2d\u5275\u5efa\u8de8\u5eab\u8996\u5716\u6709\u9032\u4e00\u6b65\u7684\u8208\u8da3\uff0c\u6216\u8005\u60f3\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u65bc<code><a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u6b61\u8fce\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u6599\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22DB2\u4e2d\u5275\u5efa\u8de8\u5eab\u8996\u5716\u7684\u64cd\u4f5c\u65b9\u6848\uff0c\u63d0\u5347\u6578\u64da\u6574\u5408\u8207\u67e5\u8a62\u6548\u7387\uff0c\u7c21\u5316\u591a\u5eab\u7ba1\u7406\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-195411","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195411","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=195411"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195411\/revisions"}],"predecessor-version":[{"id":195412,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/195411\/revisions\/195412"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=195411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=195411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=195411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}