{"id":83615,"date":"2024-10-17T00:37:16","date_gmt":"2024-10-16T16:37:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/83615\/"},"modified":"2024-10-17T00:37:16","modified_gmt":"2024-10-16T16:37:16","slug":"ora-02449-%e8%a1%a8%e4%b8%ad%e7%9a%84%e5%94%af%e4%b8%80-%e4%b8%bb%e9%8d%b5%e8%a2%ab%e5%a4%96%e9%8d%b5%e5%bc%95%e7%94%a8-oracle%e5%a0%b1%e9%8c%af%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e9%81%a0%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/83615\/","title":{"rendered":"ORA-02449: \u8868\u4e2d\u7684\u552f\u4e00\/\u4e3b\u9375\u88ab\u5916\u9375\u5f15\u7528 ORACLE\u5831\u932f\u6545\u969c\u4fee\u5fa9\u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-02449-%e8%a1%a8%e4%b8%ad%e7%9a%84%e5%94%af%e4%b8%80-%e4%b8%bb%e9%8d%b5%e8%a2%ab%e5%a4%96%e9%8d%b5%e5%bc%95%e7%94%a8-oracle%e5%a0%b1%e9%8c%af%e6%95%85%e9%9a%9c%e4%bf%ae%e5%be%a9%e9%81%a0%e7%a8%8b-nLingFHjXr\">ORA-02449: \u8868\u4e2d\u7684\u552f\u4e00\/\u4e3b\u9375\u88ab\u5916\u9375\u5f15\u7528 ORACLE\u5831\u932f\u6545\u969c\u4fee\u5fa9\u9060\u7a0b\u8655\u7406<\/h1>\n<p>\u5728\u4f7f\u7528Oracle\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662fORA-02449\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u522a\u9664\u6216\u4fee\u6539\u4e00\u500b\u8868\u7684\u552f\u4e00\u9375\u6216\u4e3b\u9375\u6642\uff0c\u800c\u8a72\u9375\u53c8\u88ab\u5176\u4ed6\u8868\u7684\u5916\u9375\u6240\u5f15\u7528\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eORA-02449\u7684\u6210\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n<h2 id=\"ora-02449%e7%9a%84%e6%88%90%e5%9b%a0-nLingFHjXr\">ORA-02449\u7684\u6210\u56e0<\/h2>\n<p>ORA-02449\u932f\u8aa4\u7684\u6839\u672c\u539f\u56e0\u5728\u65bc\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027\u7d04\u675f\u3002\u7576\u4e00\u500b\u8868\u7684\u4e3b\u9375\u6216\u552f\u4e00\u9375\u88ab\u5176\u4ed6\u8868\u7684\u5916\u9375\u5f15\u7528\u6642\uff0cOracle\u6578\u64da\u5eab\u6703\u963b\u6b62\u5c0d\u8a72\u9375\u7684\u522a\u9664\u6216\u4fee\u6539\uff0c\u4ee5\u7dad\u8b77\u6578\u64da\u7684\u4e00\u81f4\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<ul>\n<li><strong>\u4e3b\u9375\uff08Primary Key\uff09<\/strong>: \u7528\u65bc\u552f\u4e00\u6a19\u8b58\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u6578\u64da\u3002<\/li>\n<li><strong>\u5916\u9375\uff08Foreign Key\uff09<\/strong>: \u7528\u65bc\u5728\u5169\u500b\u8868\u4e4b\u9593\u5efa\u7acb\u95dc\u806f\uff0c\u5f15\u7528\u53e6\u4e00\u500b\u8868\u7684\u4e3b\u9375\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u5169\u500b\u8868\uff1a<code>Customers<\/code>\u548c<code>Orders<\/code>\u3002\u5982\u679c<code>Orders<\/code>\u8868\u4e2d\u7684<code>CustomerID<\/code>\u662f\u5916\u9375\uff0c\u5f15\u7528\u4e86<code>Customers<\/code>\u8868\u4e2d\u7684<code>ID<\/code>\uff0c\u90a3\u9ebc\u5728\u522a\u9664<code>Customers<\/code>\u8868\u4e2d\u7684\u67d0\u500b\u5ba2\u6236\u6642\uff0c\u5c31\u6703\u51fa\u73feORA-02449\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9ora-02449%e9%8c%af%e8%aa%a4-nLingFHjXr\">\u5982\u4f55\u4fee\u5fa9ORA-02449\u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9ORA-02449\u932f\u8aa4\u7684\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e8%aa%8d%e5%a4%96%e9%8d%b5%e7%b4%84%e6%9d%9f-nLingFHjXr\">1. \u78ba\u8a8d\u5916\u9375\u7d04\u675f<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u78ba\u8a8d\u54ea\u4e9b\u5916\u9375\u7d04\u675f\u5f15\u7528\u4e86\u8a72\u4e3b\u9375\u6216\u552f\u4e00\u9375\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u67e5\u627e\u76f8\u95dc\u7684\u5916\u9375\u7d04\u675f\uff1a<\/p>\n<pre><code>SELECT a.constraint_name, a.table_name, b.table_name AS referenced_table\nFROM user_constraints a\nJOIN user_constraints b ON a.r_constraint_name = b.constraint_name\nWHERE a.constraint_type = 'R' AND b.constraint_type IN ('P', 'U')\nAND b.table_name = 'YOUR_TABLE_NAME';<\/code><\/pre>\n<p>\u5c07<code>YOUR_TABLE_NAME<\/code>\u66ff\u63db\u70ba\u60a8\u8981\u6aa2\u67e5\u7684\u8868\u540d\u3002<\/p>\n<h3 id=\"2-%e5%88%aa%e9%99%a4%e6%88%96%e7%a6%81%e7%94%a8%e5%a4%96%e9%8d%b5%e7%b4%84%e6%9d%9f-nLingFHjXr\">2. \u522a\u9664\u6216\u7981\u7528\u5916\u9375\u7d04\u675f<\/h3>\n<p>\u5728\u78ba\u5b9a\u4e86\u5916\u9375\u7d04\u675f\u5f8c\uff0c\u60a8\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u6216\u7981\u7528\u9019\u4e9b\u7d04\u675f\u3002\u4ee5\u4e0b\u662f\u522a\u9664\u5916\u9375\u7d04\u675f\u7684SQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>ALTER TABLE Orders DROP CONSTRAINT fk_customer;<\/code><\/pre>\n<p>\u5982\u679c\u60a8\u4e0d\u60f3\u6c38\u4e45\u522a\u9664\u5916\u9375\u7d04\u675f\uff0c\u53ef\u4ee5\u9078\u64c7\u7981\u7528\u5b83\uff1a<\/p>\n<pre><code>ALTER TABLE Orders DISABLE CONSTRAINT fk_customer;<\/code><\/pre>\n<h3 id=\"3-%e4%bf%ae%e6%94%b9%e6%88%96%e5%88%aa%e9%99%a4%e4%b8%bb%e9%8d%b5-%e5%94%af%e4%b8%80%e9%8d%b5-nLingFHjXr\">3. \u4fee\u6539\u6216\u522a\u9664\u4e3b\u9375\/\u552f\u4e00\u9375<\/h3>\n<p>\u5728\u5916\u9375\u7d04\u675f\u88ab\u522a\u9664\u6216\u7981\u7528\u5f8c\uff0c\u60a8\u5c31\u53ef\u4ee5\u5b89\u5168\u5730\u4fee\u6539\u6216\u522a\u9664\u4e3b\u9375\u6216\u552f\u4e00\u9375\u4e86\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>ALTER TABLE Customers DROP CONSTRAINT pk_customer;<\/code><\/pre>\n<h3 id=\"4-%e6%81%a2%e5%be%a9%e5%a4%96%e9%8d%b5%e7%b4%84%e6%9d%9f-nLingFHjXr\">4. \u6062\u5fa9\u5916\u9375\u7d04\u675f<\/h3>\n<p>\u5b8c\u6210\u4e3b\u9375\u6216\u552f\u4e00\u9375\u7684\u4fee\u6539\u5f8c\uff0c\u60a8\u53ef\u4ee5\u9078\u64c7\u6062\u5fa9\u4e4b\u524d\u7684\u5916\u9375\u7d04\u675f\uff1a<\/p>\n<pre><code>ALTER TABLE Orders ADD CONSTRAINT fk_customer FOREIGN KEY (CustomerID) REFERENCES Customers(ID);<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-nLingFHjXr\">\u7e3d\u7d50<\/h2>\n<p>ORA-02449\u932f\u8aa4\u662fOracle\u6578\u64da\u5eab\u4e2d\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u7531\u65bc\u4e3b\u9375\u6216\u552f\u4e00\u9375\u88ab\u5916\u9375\u5f15\u7528\u800c\u5c0e\u81f4\u3002\u901a\u904e\u78ba\u8a8d\u5916\u9375\u7d04\u675f\u3001\u522a\u9664\u6216\u7981\u7528\u5916\u9375\u3001\u4fee\u6539\u4e3b\u9375\u6216\u552f\u4e00\u9375\uff0c\u7136\u5f8c\u6062\u5fa9\u5916\u9375\u7d04\u675f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u6b64\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u7ba1\u7406\u7684\u4f01\u696d\u4f86\u8aaa\uff0c\u9078\u64c7\u5408\u9069\u7684\u6578\u64da\u5eab\u89e3\u6c7a\u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u670d\u52d9\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7aORA-02449\u932f\u8aa4\uff0c\u4e86\u89e3\u5982\u4f55\u8655\u7406\u8868\u4e2d\u552f\u4e00\/\u4e3b\u9375\u88ab\u5916\u9375\u5f15\u7528\u7684\u554f\u984c\uff0c\u78ba\u4fddOracle\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\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-83615","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/83615","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=83615"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/83615\/revisions"}],"predecessor-version":[{"id":83616,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/83615\/revisions\/83616"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=83615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=83615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=83615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}