{"id":83329,"date":"2024-10-16T23:45:17","date_gmt":"2024-10-16T15:45:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/83329\/"},"modified":"2024-10-16T23:45:17","modified_gmt":"2024-10-16T15:45:17","slug":"ora-02259-%e9%87%8d%e8%a4%87%e7%9a%84-unique-primary-key-%e8%a6%8f%e7%af%84-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%e8%99%95%e7%90%86","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/83329\/","title":{"rendered":"ORA-02259: \u91cd\u8907\u7684 UNIQUE\/PRIMARY KEY \u898f\u7bc4 ORACLE\u5831\u932f\u6545\u969c\u4fee\u5fa9\u9060\u7a0b\u8655\u7406"},"content":{"rendered":"<h1 id=\"ora-02259-%e9%87%8d%e8%a4%87%e7%9a%84-unique-primary-key-%e8%a6%8f%e7%af%84-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%e8%99%95%e7%90%86-fiGrewVOCB\">ORA-02259: \u91cd\u8907\u7684 UNIQUE\/PRIMARY KEY \u898f\u7bc4 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-02259\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u8207\u552f\u4e00\u6027\u7d04\u675f\uff08UNIQUE\uff09\u6216\u4e3b\u9375\u7d04\u675f\uff08PRIMARY KEY\uff09\u6709\u95dc\uff0c\u7576\u6578\u64da\u5eab\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u4e00\u689d\u8a18\u9304\u6642\uff0c\u5982\u679c\u8a72\u8a18\u9304\u7684\u552f\u4e00\u6027\u7d04\u675f\u88ab\u9055\u53cd\uff0c\u5c31\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eORA-02259\u7684\u539f\u56e0\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"ora-02259%e7%9a%84%e5%8e%9f%e5%9b%a0-fiGrewVOCB\">ORA-02259\u7684\u539f\u56e0<\/h2>\n<p>ORA-02259\u932f\u8aa4\u7684\u4e3b\u8981\u539f\u56e0\u662f\u6578\u64da\u5eab\u4e2d\u5b58\u5728\u91cd\u8907\u7684\u503c\uff0c\u9019\u4e9b\u503c\u9055\u53cd\u4e86\u552f\u4e00\u6027\u7d04\u675f\u6216\u4e3b\u9375\u7d04\u675f\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li><strong>\u63d2\u5165\u91cd\u8907\u6578\u64da\uff1a<\/strong>\u7576\u5617\u8a66\u63d2\u5165\u4e00\u689d\u8a18\u9304\uff0c\u800c\u8a72\u8a18\u9304\u7684\u67d0\u500b\u5b57\u6bb5\u5df2\u7d93\u5b58\u5728\u65bc\u6578\u64da\u5eab\u4e2d\uff0c\u4e14\u8a72\u5b57\u6bb5\u88ab\u8a2d\u7f6e\u70ba\u552f\u4e00\u6027\u7d04\u675f\u6216\u4e3b\u9375\u6642\uff0c\u5c07\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u66f4\u65b0\u64cd\u4f5c\u5c0e\u81f4\u91cd\u8907\uff1a<\/strong>\u5728\u66f4\u65b0\u4e00\u689d\u8a18\u9304\u6642\uff0c\u5982\u679c\u66f4\u65b0\u7684\u503c\u8207\u5176\u4ed6\u5df2\u5b58\u5728\u7684\u8a18\u9304\u7684\u503c\u76f8\u540c\uff0c\u4e26\u4e14\u8a72\u5b57\u6bb5\u6709\u552f\u4e00\u6027\u7d04\u675f\uff0c\u5247\u4e5f\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u8a2d\u8a08\u554f\u984c\uff1a<\/strong>\u5982\u679c\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u4e0d\u5408\u7406\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5728\u63d2\u5165\u6216\u66f4\u65b0\u6578\u64da\u6642\u7d93\u5e38\u51fa\u73fe\u91cd\u8907\u7684\u60c5\u6cc1\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9ora-02259%e9%8c%af%e8%aa%a4-fiGrewVOCB\">\u5982\u4f55\u4fee\u5fa9ORA-02259\u932f\u8aa4<\/h2>\n<p>\u4fee\u5fa9ORA-02259\u932f\u8aa4\u7684\u904e\u7a0b\u901a\u5e38\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e7%a2%ba%e8%aa%8d%e9%8c%af%e8%aa%a4%e4%bf%a1%e6%81%af-fiGrewVOCB\">1. \u78ba\u8a8d\u932f\u8aa4\u4fe1\u606f<\/h3>\n<p>\u9996\u5148\uff0c\u7576\u51fa\u73feORA-02259\u932f\u8aa4\u6642\uff0c\u61c9\u4ed4\u7d30\u67e5\u770b\u932f\u8aa4\u4fe1\u606f\uff0c\u901a\u5e38\u6703\u63d0\u4f9b\u5177\u9ad4\u7684\u8868\u540d\u548c\u9055\u53cd\u7d04\u675f\u7684\u5b57\u6bb5\u3002\u9019\u4e9b\u4fe1\u606f\u5c0d\u65bc\u5b9a\u4f4d\u554f\u984c\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<h3 id=\"2-%e6%9f%a5%e6%89%be%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a-fiGrewVOCB\">2. \u67e5\u627e\u91cd\u8907\u6578\u64da<\/h3>\n<p>\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u67e5\u627e\u91cd\u8907\u7684\u6578\u64da\u3002\u4f8b\u5982\uff0c\u5982\u679c\u932f\u8aa4\u6d89\u53ca\u5230\u4e00\u500b\u540d\u70ba\u201cemployees\u201d\u7684\u8868\uff0c\u4e14\u552f\u4e00\u6027\u7d04\u675f\u5728\u201cemail\u201d\u5b57\u6bb5\u4e0a\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u67e5\u627e\u91cd\u8907\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff1a<\/p>\n<pre><code>SELECT email, COUNT(*)\nFROM employees\nGROUP BY email\nHAVING COUNT(*) &gt; 1;<\/code><\/pre>\n<h3 id=\"3-%e5%88%aa%e9%99%a4%e6%88%96%e6%9b%b4%e6%96%b0%e9%87%8d%e8%a4%87%e6%95%b8%e6%93%9a-fiGrewVOCB\">3. \u522a\u9664\u6216\u66f4\u65b0\u91cd\u8907\u6578\u64da<\/h3>\n<p>\u4e00\u65e6\u627e\u5230\u4e86\u91cd\u8907\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u6216\u66f4\u65b0\u9019\u4e9b\u8a18\u9304\u3002\u522a\u9664\u91cd\u8907\u8a18\u9304\u7684SQL\u8a9e\u53e5\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code>DELETE FROM employees\nWHERE email IN (\n    SELECT email\n    FROM (\n        SELECT email, ROW_NUMBER() OVER (PARTITION BY email ORDER BY id) AS rnum\n        FROM employees\n    ) \n    WHERE rnum &gt; 1\n);<\/code><\/pre>\n<h3 id=\"4-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88-fiGrewVOCB\">4. \u6aa2\u67e5\u6578\u64da\u5eab\u8a2d\u8a08<\/h3>\n<p>\u5982\u679c\u7d93\u5e38\u51fa\u73feORA-02259\u932f\u8aa4\uff0c\u53ef\u80fd\u9700\u8981\u91cd\u65b0\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u3002\u78ba\u4fdd\u552f\u4e00\u6027\u7d04\u675f\u548c\u4e3b\u9375\u7d04\u675f\u7684\u8a2d\u7f6e\u5408\u7406\uff0c\u4e26\u8003\u616e\u662f\u5426\u9700\u8981\u5c0d\u67d0\u4e9b\u5b57\u6bb5\u9032\u884c\u7d22\u5f15\u3002<\/p>\n<h2 id=\"%e7%b5%90%e8%ab%96-fiGrewVOCB\">\u7d50\u8ad6<\/h2>\n<p>ORA-02259\u932f\u8aa4\u662fOracle\u6578\u64da\u5eab\u4e2d\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u7531\u65bc\u91cd\u8907\u7684\u552f\u4e00\u6027\u7d04\u675f\u6216\u4e3b\u9375\u7d04\u675f\u5f15\u8d77\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5\u932f\u8aa4\u4fe1\u606f\u3001\u67e5\u627e\u91cd\u8907\u6578\u64da\u3001\u522a\u9664\u6216\u66f4\u65b0\u91cd\u8907\u8a18\u9304\u4ee5\u53ca\u6aa2\u67e5\u6578\u64da\u5eab\u8a2d\u8a08\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u904b\u884c\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u53ca\u6642\u8655\u7406\u9019\u985e\u932f\u8aa4\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002<\/p>\n<p>\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u5728\u9999\u6e2f\u7684\u74b0\u5883\u4e2d\u4f7f\u7528<a href=\"https:\/\/server.hk\">VPS<\/a>\u89e3\u6c7a\u65b9\u6848\u4f86\u7ba1\u7406\u60a8\u7684\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>\u89e3\u6c7aORA-02259\u932f\u8aa4\uff0c\u4fee\u5fa9\u91cd\u8907\u7684UNIQUE\/PRIMARY KEY\u898f\u7bc4\uff0c\u63d0\u4f9b\u6709\u6548\u7684Oracle\u6545\u969c\u9060\u7a0b\u8655\u7406\u65b9\u6848\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-83329","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/83329","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=83329"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/83329\/revisions"}],"predecessor-version":[{"id":83330,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/83329\/revisions\/83330"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=83329"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=83329"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=83329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}