{"id":179670,"date":"2024-11-09T03:49:18","date_gmt":"2024-11-08T19:49:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/179670\/"},"modified":"2024-11-09T03:49:19","modified_gmt":"2024-11-08T19:49:19","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-oracle-%e4%b8%ad%e7%94%a8%e9%9d%9e%e9%bb%98%e8%aa%8d%e6%96%b9%e5%bc%8f%e5%89%b5%e5%bb%ba%e5%a4%96%e9%8d%b5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/179670\/","title":{"rendered":"\u5982\u4f55\u5728 Oracle \u4e2d\u7528\u975e\u9ed8\u8a8d\u65b9\u5f0f\u5275\u5efa\u5916\u9375"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8-oracle-%e4%b8%ad%e7%94%a8%e9%9d%9e%e9%bb%98%e8%aa%8d%e6%96%b9%e5%bc%8f%e5%89%b5%e5%bb%ba%e5%a4%96%e9%8d%b5-kWRJRTiFyW\">\u5982\u4f55\u5728 Oracle \u4e2d\u7528\u975e\u9ed8\u8a8d\u65b9\u5f0f\u5275\u5efa\u5916\u9375<\/h1>\n<p>\u5728\u95dc\u806f\u6578\u64da\u5eab\u4e2d\uff0c\u5916\u9375\u662f\u4e00\u7a2e\u91cd\u8981\u7684\u7d04\u675f\uff0c\u7528\u65bc\u7dad\u8b77\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u4e00\u81f4\u6027\u3002\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0c\u5275\u5efa\u5916\u9375\u901a\u5e38\u662f\u901a\u904e\u9ed8\u8a8d\u65b9\u5f0f\u9032\u884c\u7684\uff0c\u4f46\u6709\u6642\u5019\u6211\u5011\u9700\u8981\u4f7f\u7528\u975e\u9ed8\u8a8d\u65b9\u5f0f\u4f86\u5275\u5efa\u5916\u9375\uff0c\u4ee5\u6eff\u8db3\u7279\u5b9a\u7684\u9700\u6c42\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728 Oracle \u4e2d\u7528\u975e\u9ed8\u8a8d\u65b9\u5f0f\u5275\u5efa\u5916\u9375\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e5%a4%96%e9%8d%b5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-kWRJRTiFyW\">\u5916\u9375\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5916\u9375\u662f\u4e00\u500b\u8868\u4e2d\u7684\u5b57\u6bb5\uff0c\u5b83\u6307\u5411\u53e6\u4e00\u500b\u8868\u7684\u4e3b\u9375\u3002\u9019\u7a2e\u95dc\u4fc2\u4f7f\u5f97\u6578\u64da\u5eab\u80fd\u5920\u4fdd\u6301\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u9632\u6b62\u51fa\u73fe\u5b64\u7acb\u7684\u8a18\u9304\u3002\u7576\u4e00\u500b\u8868\u7684\u5916\u9375\u6307\u5411\u53e6\u4e00\u500b\u8868\u7684\u4e3b\u9375\u6642\uff0c\u9019\u5169\u500b\u8868\u4e4b\u9593\u5c31\u5efa\u7acb\u4e86\u95dc\u806f\u3002<\/p>\n<h2 id=\"%e9%bb%98%e8%aa%8d%e6%96%b9%e5%bc%8f%e5%89%b5%e5%bb%ba%e5%a4%96%e9%8d%b5-kWRJRTiFyW\">\u9ed8\u8a8d\u65b9\u5f0f\u5275\u5efa\u5916\u9375<\/h2>\n<p>\u5728 Oracle \u4e2d\uff0c\u5275\u5efa\u5916\u9375\u7684\u9ed8\u8a8d\u65b9\u5f0f\u5982\u4e0b\uff1a<\/p>\n<pre><code>CREATE TABLE orders (\n    order_id NUMBER PRIMARY KEY,\n    customer_id NUMBER,\n    CONSTRAINT fk_customer FOREIGN KEY (customer_id)\n    REFERENCES customers (customer_id)\n);<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba <code>orders<\/code> \u7684\u8868\uff0c\u4e26\u5728\u5176\u4e2d\u5b9a\u7fa9\u4e86\u4e00\u500b\u5916\u9375 <code>customer_id<\/code>\uff0c\u5b83\u6307\u5411 <code>customers<\/code> \u8868\u7684 <code>customer_id<\/code> \u4e3b\u9375\u3002<\/p>\n<h2 id=\"%e9%9d%9e%e9%bb%98%e8%aa%8d%e6%96%b9%e5%bc%8f%e5%89%b5%e5%bb%ba%e5%a4%96%e9%8d%b5-kWRJRTiFyW\">\u975e\u9ed8\u8a8d\u65b9\u5f0f\u5275\u5efa\u5916\u9375<\/h2>\n<p>\u6709\u6642\u5019\uff0c\u6211\u5011\u9700\u8981\u4f7f\u7528\u975e\u9ed8\u8a8d\u65b9\u5f0f\u4f86\u5275\u5efa\u5916\u9375\uff0c\u4f8b\u5982\u5728\u5275\u5efa\u8868\u6642\u4e0d\u7acb\u5373\u5b9a\u7fa9\u5916\u9375\u7d04\u675f\uff0c\u6216\u8005\u5728\u8868\u5df2\u7d93\u5b58\u5728\u7684\u60c5\u6cc1\u4e0b\u6dfb\u52a0\u5916\u9375\u7d04\u675f\u3002\u4ee5\u4e0b\u662f\u5e7e\u7a2e\u975e\u9ed8\u8a8d\u65b9\u5f0f\u7684\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e5%9c%a8%e5%89%b5%e5%bb%ba%e8%a1%a8%e6%99%82%e4%b8%8d%e7%ab%8b%e5%8d%b3%e5%ae%9a%e7%be%a9%e5%a4%96%e9%8d%b5-kWRJRTiFyW\">1. \u5728\u5275\u5efa\u8868\u6642\u4e0d\u7acb\u5373\u5b9a\u7fa9\u5916\u9375<\/h3>\n<p>\u6211\u5011\u53ef\u4ee5\u5148\u5275\u5efa\u8868\uff0c\u7136\u5f8c\u518d\u4f7f\u7528 <code>ALTER TABLE<\/code> \u8a9e\u53e5\u4f86\u6dfb\u52a0\u5916\u9375\u7d04\u675f\uff1a<\/p>\n<pre><code>CREATE TABLE orders (\n    order_id NUMBER PRIMARY KEY,\n    customer_id NUMBER\n);\n\nALTER TABLE orders\nADD CONSTRAINT fk_customer FOREIGN KEY (customer_id)\nREFERENCES customers (customer_id);<\/code><\/pre>\n<h3 id=\"2-%e5%9c%a8%e5%b7%b2%e5%ad%98%e5%9c%a8%e7%9a%84%e8%a1%a8%e4%b8%ad%e6%b7%bb%e5%8a%a0%e5%a4%96%e9%8d%b5-kWRJRTiFyW\">2. \u5728\u5df2\u5b58\u5728\u7684\u8868\u4e2d\u6dfb\u52a0\u5916\u9375<\/h3>\n<p>\u5982\u679c\u8868\u5df2\u7d93\u5b58\u5728\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 <code>ALTER TABLE<\/code> \u8a9e\u53e5\u4f86\u6dfb\u52a0\u5916\u9375\u7d04\u675f\uff1a<\/p>\n<pre><code>ALTER TABLE orders\nADD CONSTRAINT fk_customer FOREIGN KEY (customer_id)\nREFERENCES customers (customer_id);<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8%e4%b8%8d%e5%90%8c%e7%9a%84%e7%b4%84%e6%9d%9f%e5%90%8d%e7%a8%b1-kWRJRTiFyW\">3. \u4f7f\u7528\u4e0d\u540c\u7684\u7d04\u675f\u540d\u7a31<\/h3>\n<p>\u5728\u5275\u5efa\u5916\u9375\u6642\uff0c\u6211\u5011\u53ef\u4ee5\u81ea\u5b9a\u7fa9\u7d04\u675f\u540d\u7a31\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7ba1\u7406\u548c\u8b58\u5225\uff1a<\/p>\n<pre><code>ALTER TABLE orders\nADD CONSTRAINT custom_fk_customer FOREIGN KEY (customer_id)\nREFERENCES customers (customer_id);<\/code><\/pre>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-kWRJRTiFyW\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u5275\u5efa\u5916\u9375\u4e4b\u524d\uff0c\u78ba\u4fdd\u53c3\u8003\u7684\u4e3b\u9375\u5df2\u7d93\u5b58\u5728\u3002<\/li>\n<li>\u5916\u9375\u7d04\u675f\u53ef\u4ee5\u662f\u591a\u5217\u7684\uff0c\u9019\u610f\u5473\u8457\u53ef\u4ee5\u5728\u4e00\u500b\u5916\u9375\u4e2d\u5f15\u7528\u591a\u500b\u5217\u3002<\/li>\n<li>\u5728\u6dfb\u52a0\u5916\u9375\u7d04\u675f\u6642\uff0cOracle \u6703\u6aa2\u67e5\u73fe\u6709\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u78ba\u4fdd\u6240\u6709\u5916\u9375\u503c\u90fd\u5b58\u5728\u65bc\u53c3\u8003\u8868\u4e2d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-kWRJRTiFyW\">\u7e3d\u7d50<\/h2>\n<p>\u5728 Oracle \u4e2d\uff0c\u4f7f\u7528\u975e\u9ed8\u8a8d\u65b9\u5f0f\u5275\u5efa\u5916\u9375\u53ef\u4ee5\u9748\u6d3b\u5730\u6eff\u8db3\u4e0d\u540c\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u901a\u904e <code>ALTER TABLE<\/code> \u8a9e\u53e5\u6dfb\u52a0\u5916\u9375\uff0c\u9084\u662f\u81ea\u5b9a\u7fa9\u7d04\u675f\u540d\u7a31\uff0c\u9019\u4e9b\u65b9\u6cd5\u90fd\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7ba1\u7406\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027\u3002\u5c0d\u65bc\u9700\u8981\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\u7a69\u5b9a\u6027\u548c\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728 Oracle \u4e2d\u4ee5\u975e\u9ed8\u8a8d\u65b9\u5f0f\u5275\u5efa\u5916\u9375\uff0c\u638c\u63e1\u81ea\u5b9a\u7fa9\u7d04\u675f\u548c\u53c3\u8003\u5b8c\u6574\u6027\u8a2d\u7f6e\u7684\u6280\u5de7\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-179670","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179670","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=179670"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179670\/revisions"}],"predecessor-version":[{"id":179671,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/179670\/revisions\/179671"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=179670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=179670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=179670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}